Stay tuned

[Jason@SportsCar]

:cool:

http://www.myscca.com/photo/250/2009/12/11/1765d7c5b912531cbcc927ff4277_4.jpg

[JumpmanYaris]

WTF where everything go lol

[kngrsll]

cool!! im doing a roll bar this winter :D

[HTM Yaris]

:headbang:

[markitect]

Looks amazing!!!!!!!!!!!!!!!

[Jason@SportsCar]

So it took a few days of playing musical cars and trailers... But last years project car has moved to its home for the 2010 season, the Editor of SportsCar magazine will be racing it this year.
http://farm4.static.flickr.com/3615/3370020885_5ae9172825.jpg

And now the 2010 project car is sitting in my garage. This needs a lot of work. Most of the go fast stuff is long gone, and we need to do a number of things to get it up to SCCA spec. Should be fun.
http://farm3.static.flickr.com/2798/4189624600_cbdaf7b6fe.jpg

[schleppy]

Looks like a fun project, keep us posted!

[CASTREX]

So you got the Tein Yaris??? :wub: or what it is left of it?

Wasn't it supercharged???

[thebarber]

had a blitz, iirc

nice buy...what'd it set you back?

[ROCKLAND TOYOTA]

also has the POND SPOILER ive been wanting.....

[Jason@SportsCar]

So you got the Tein Yaris??? :wub: or what it is left of it?

Wasn't it supercharged???

I am really not familiar with the cars history. When Toyota contacted us about this project I did some very brief research. I read somewhere that it was supercharged, but it is not now.

There does not appear to be many parts left from its previous life, and much of what is will likely come off for our use. We just wanted the caged shell and drive train, we will fill in the rest. :burnrubber:

We have been in the process of finishing our Feb 2010 issue of SportsCar, so this weekend will be my first opportunity to tear into it and see what we actually have.

As my boss said, "this could be one of our coolest projects, or the biggest nightmare." :iono:

[Jason@SportsCar]

also has the POND SPOILER ive been wanting.....

I will have to post up some pics after this weekend. Maybe some of you can help identify some of the parts that were left on. :confused:

[90tsi]

i always wanted to see the rematch of the tien yaris and the spoon fit they started in siphon

[thebarber]

if i figure it correctly, its the tein yaris thats getting fit w/ a jdm bumper kit in siphon #1

so id imagine its the test mule for a lot of parts for usdm

[dvlnblkdrs]

woot! excited.. subscribed for more oogling :thumbup: :biggrin: :eek: :tweetz:

[cali yaris]

Are you keeping the cage? As is?

[Jason@SportsCar]

Are you keeping the cage? As is?

We plan to add to it a little, but the main cage will stay as is. We inspected it, to make sure it was SCCA legal, before taking on the project.

The cage is really nice, they did a great job with it. :thumbsup: It is not a "show cage", which is what we feared with this being a past SEMA car.

[thebarber]

We plan to add to it a little, but the main cage will stay as is. We inspected it, to make sure it was SCCA legal, before taking on the project.

The cage is really nice, they did a great job with it. :thumbsup: It is not a "show cage", which is what we feared with this being a past SEMA car.

dude, this car was much more than a SEMA show-queen....

http://www.google.com/search?q=tein+yaris&rls=com.microsoft:en-ca&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1

[cali yaris]

It wasn't very fast when I saw it at time attack -- I'm sure Jason can do more with it.

What exactly are you purposing it for?

[justjesus]

^Really? I thought it was reasonably quick? But, I'm thinking of the micro car shoot-out in Siphon.

Cool project, though, Jason. Keep us posted.

[cali yaris]

against other micros, it probably was! The day I saw it he had it out against Rado's time attack tC, some beastly Porsche cup car, and several others. It just didn't have the power for the straights at that time, but I'm sure it did fine in the turns.

[Jason@SportsCar]

It wasn't very fast when I saw it at time attack -- I'm sure Jason can do more with it.

What exactly are you purposing it for?

Looking at past lap times from the track days it ran at, it was not fast - our Showroom Stock C Nissan project has put down faster laps at BRP. However, there are a ton of variables, we have no idea the talent level of the driver, and no idea what tires they were on.

Regardless, we are confident it will be quicker when we are done.

We are building the car for SCCA's H Production Club Racing class, with plans of taking the car to the National Championship Runoffs.

The only bad thing is, the National race season in this Division starts in January. At this time we believe we will make the Double National race at PIR, but the car will be largely stock. We only have time to make the required safety updates before that race, all of the go fast stuff will come later in the season.

We also have a number of problems to address... Power steering is not working, and there are some non SCCA class legal mods we have to undo. Development will keep us busy for a good part of the season. :bonk:

[markitect]

On a curve friendly course the Yaris is very competitive. I ran mine at Waterford Hills on an open track day and was running within 10 seconds of what our spec neons run during a race. And all it had was a rear sway bar and some azenis 615s.

Also I would forget about the power steering for now, it's shuts off once your going very fast(at least thats the common theory), so once your on the tack you shouldn't have to worry.

Good luck on your build!!!!!!!!

[ROCKLAND TOYOTA]

.

Also I would forget about the power steering for now, it's shuts off once your going very fast(at least thats the common theory), so once your on the tack you shouldn't have to worry.



:iono: ANYONE have a clue as to what he's trying to say? im not understanding the power steering SHUT OFF.....

[cali yaris]

We have electronic-assisted power steering. The computer controls the power steering, and as you go faster it reduces the assist, until it's completely off at some pre-determined speed.

With that said, I pulled the relay for it (disabling it) and I've never missed it.

[minired5stby]

I can't wait to see the engine totally finished, this will be very intresting what kinda numbers you will make compared to Garm.

[Sabretooth]

Did you happen to score the car with the original Tein SS coilovers? or did they revert it to stock?

If so, you scored big on a 2 of a kind setup, other Yaris in the states was done by a group trying to push 1G on the skidpad with a Sedan, lol.

[Jason@SportsCar]

Did you happen to score the car with the original Tein SS coilovers? or did they revert it to stock?

If so, you scored big on a 2 of a kind setup, other Yaris in the states was done by a group trying to push 1G on the skidpad with a Sedan, lol.

The car has stock shocks on it. Regardless, we already had plans in place to have some custom race shocks made. :thumbsup:

[why?]

Did you happen to score the car with the original Tein SS coilovers? or did they revert it to stock?

If so, you scored big on a 2 of a kind setup, other Yaris in the states was done by a group trying to push 1G on the skidpad with a Sedan, lol.

did they hit it? that would be sweet.

[Sabretooth]

They hit it and broke it, the article is here somewhere...

[mojoyaris]

I heard the guys from A&J Racing who competed against the Tein Yaris said Tein put in alot of $$$ in this car. More money than was needed. The Yaris was still slow with the SC. It couldn't keep up with the AJ racing fit. I think the Yaris at that time was running on 615's on 17 inch rims which were probably too heavy for the setup.

The Fits were running 15's and some of them were turbo'd for the time attacks.

[Loren]

They hit it and broke it, the article is here somewhere...
How hard is it to get 1G? I've done .98 average (two laps each direction) in my Yaris on Dunlop Star Specs with minimal suspension tuning. A set of the latest generation top dog street tires (Toyo R1R, Kumho XS, etc) can easily exceed 1G, probably even on stock suspension.

Put a set of race tires on and you can run 1.2 G all day long.

(sorry for the threadjack...)

[ROCKLAND TOYOTA]

I heard the guys from A&J Racing who competed against the Tein Yaris said Tein put in alot of $$$ in this car. More money than was needed. The Yaris was still slow with the SC. It couldn't keep up with the AJ racing fit. I think the Yaris at that time was running on 615's on 17 inch rims which were probably too heavy for the setup.

The Fits were running 15's and some of them were turbo'd for the time attacks.

HMMMM, i thought i remember the TEIN yaris was N/A when it was featured in SIPHON and its time was only off a bit from the fit's that just so happened to not be able to make it.Also wasn't those fit's k20 powered also? it was so long ago but i don't even think i saw performance numbers for this car........

[ROCKLAND TOYOTA]

We have electronic-assisted power steering. The computer controls the power steering, and as you go faster it reduces the assist, until it's completely off at some pre-determined speed.

With that said, I pulled the relay for it (disabling it) and I've never missed it.

so pulling fuse keeps the power steering on electric assist all the time now for you? if so do tell which fuse was pulled as its 17 degrees here this morning and im not about to go exploring.

[cali yaris]

^ no, pulling the relay disables the power steering system completely. I'll take a pic next chance I get.

There was another thread about this and someone did post a pic of which relay it is.

[NonStopTuning]

So it took a few days of playing musical cars and trailers... Should be fun.
http://farm3.static.flickr.com/2798/4189624600_cbdaf7b6fe.jpg




This looks like it'll be a great project car. I'm looking forward to seeing it out on track in 2010.

Good luck with the project Jason! Everyone at NST is rooting for ya!!!


:burnrubber:

[jekqmb]

Looking at past lap times from the track days it ran at, it was not fast - our Showroom Stock C Nissan project has put down faster laps at BRP. However, there are a ton of variables, we have no idea the talent level of the driver, and no idea what tires they were on.

Regardless, we are confident it will be quicker when we are done.

We are building the car for SCCA's H Production Club Racing class, with plans of taking the car to the National Championship Runoffs.

The only bad thing is, the National race season in this Division starts in January. At this time we believe we will make the Double National race at PIR, but the car will be largely stock. We only have time to make the required safety updates before that race, all of the go fast stuff will come later in the season.

We also have a number of problems to address... Power steering is not working, and there are some non SCCA class legal mods we have to undo. Development will keep us busy for a good part of the season. :bonk:

Hopefully your not talking about a sentra, my old spec-v on k-sport coils and 16" Rotas feels like my Yaris does with trd springs/shocks and rear sway bar on stockers......I know many sentra auto-x'ers.

[Jason@SportsCar]

This looks like it'll be a great project car. I'm looking forward to seeing it out on track in 2010.

Good luck with the project Jason! Everyone at NST is rooting for ya!!!


:burnrubber:

Thanks Mike. We will try to keep this thread updated as we go... But once we start the build there won’t be many details online - we have to save something for the magazine. :biggrin:

We have some cool new stuff being developed for the car, hopefully the rest of the Yaris racers will benefit from it.

Spent all day on the car, got it on the scales, we need to drop about 260lbs to get down to the HP minimum weight. I took 100lbs out today.

There is some interesting wiring in here. :eek:


http://www.myscca.com/photo/250/2009/12/20/11412dfb77125aa4beb927fff183_4.jpg



If there are any Tein fanbois that want these, come and get them. The panels have been cut to clear the door bars, but you could try to pull the suede off and put it on your panels, or just hang them in your garage.

Free if picked up. Located in South Orange County.


http://www.myscca.com/photo/250/2009/12/20/34412dfb77125aa4beb927ffd772_4.jpg

[Jason@SportsCar]

So while I am a complete Yaris newb, I am pretty sure that these parts are not OE. Can anyone identify them?

The rear looks like an aftermarket lower valance has been molded on to the OE bumper, there is a label on it that says Premium.

The side skirts say Burnout.

No idea on the rear spoiler and front bumper.:iono:

http://www.myscca.com/photo/250/2009/12/20/88412dfb77125aa4beb927ffb514_4.jpg
http://www.myscca.com/photo/250/2009/12/20/4412dfb77125aa4beb927ff9993_4.jpg
http://www.myscca.com/photo/250/2009/12/20/76412dfb77125aa4beb927ff7230_4.jpg
http://www.myscca.com/photo/250/2009/12/20/88412dfb77125aa4beb927ff5560_4.jpg

[jekqmb]

Well if u sell the side skirts, i would be more then happy to buy them!

[toad]

you could probably lose another 10lbs just by taking off all the stickers :lol:

[Jason@SportsCar]

you could probably lose another 10lbs just by taking off all the stickers :lol:

Done. :thumbsup:

[Jason@SportsCar]

We need to find some OE bumpers.

http://www.yarisworld.com/forums/showthread.php?p=426700#post426700

[HTM Yaris]

If I pay for shipping can I get the suede panels ....

[RacerFreakXXX]

that whole body kit is burnout and the spoiler looks stock. if you need to shed some more lbs try switching to rollup windows and remove all the motors for anything power that's not needed.

[Jason@SportsCar]

that whole body kit is burnout and the spoiler looks stock. if you need to shed some more lbs try switching to rollup windows and remove all the motors for anything power that's not needed.

That's a thought.... But no windows weighs less. As well as no HVAC, wipers, and the rest of the glass being replaced with Lexan. :thumbsup:
http://myscca.com/photo/250/2009/12/23/81412dfb77125aa4beb927fe929_4.jpg
http://myscca.com/photo/250/2009/12/23/39412dfb77125aa4beb927fe7228_4.jpg

[HTM Yaris]

Dude , Those A-pillars ( inside ) are prime for pillaging . Think about it , with the roll cage the pillars are just for show now . Silver dollar size holes . You could also do that with the doors and hatch frame also . Heck you could even take out any/all roof supports now . That is if the rules allow . Can you gut the dash ? Super glue the front side of all dash compartment doors shut . Then shave away the inside ( after removing the dash from the car ) . Just leave enough bracing to connect back to car .

[Jason@SportsCar]

Dude , Those A-pillars ( inside ) are prime for pillaging . Think about it , with the roll cage the pillars are just for show now . Silver dollar size holes . You could also do that with the doors and hatch frame also . Heck you could even take out any/all roof supports now . That is if the rules allow . Can you gut the dash ? Super glue the front side of all dash compartment doors shut . Then shave away the inside ( after removing the dash from the car ) . Just leave enough bracing to connect back to car .

There is not to much more metal we can remove without having issues with the rules.

The dash is just a shell now, compartment doors are gone, and so are about half the braces. Depending on what we do for an ECU, the cluster may go as well.

Still waiting on the race seat and new wheel.

[HTM Yaris]

Yeah I see the dash now ....time for a new monitor :smile:

[cali yaris]

:bow: I'm too chicken to strip mine that far..

[kngrsll]

these cars are so fun now bc they weight so little, i couldnt imagine actually doing a serious weight removal!

i had a 240 i raced for years, one night, we took EVERYTHING out that could unbolt other than the drivers seat, dash, and steering wheel. it was amazing, it was on lowering springs so it raised about an inch, and was ungodly fun to drive. we tried to put back as little as possible back in, but it wasnt quite the same

[Jason@SportsCar]

Spent some time on the car over the holiday. Cut a bunch more unneeded sheet metal out of the car, and disabled the steering lock.

Started to pull some of the wires we no longer need, but what a mess. The previous builders liked to use the twist and tape method of wiring. :iono: I doubt they actually built the car with this method, more likely in a hasty attempt to remove everything not bolted down (and some that were), they did this before they turned the car back over to Toyota. :mad:

Also found out why the power steering does not work, two wires cut right at the unit in the dash. So far I have not been able to track down the other ends.

[mojoyaris]

That FIA spec cage is probably overbuilt for the events. Are you able to mod it to make it lighter?

In a previous post, When the Tein Yaris was in Siphon, they took out the SC to make it a more even comparison to the old Spoon Fit. For most of the Time attacks that it was in, it was Supercharged. The cage is a heavy component of the car and some of those cars like th AJ racing Fit had the 1.5 but with turbo but no cage.
Another Fit had the K20 but the suspension setup was sloppy.
I heard that the Tein Yaris handled very well, but sadly didn't have the grunt that the other micro's had.

Love hearing about this car and glad it's going to good usage.

[Jason@SportsCar]

That FIA spec cage is probably overbuilt for the events. Are you able to mod it to make it lighter?

In a previous post, When the Tein Yaris was in Siphon, they took out the SC to make it a more even comparison to the old Spoon Fit. For most of the Time attacks that it was in, it was Supercharged. The cage is a heavy component of the car and some of those cars like th AJ racing Fit had the 1.5 but with turbo but no cage.
Another Fit had the K20 but the suspension setup was sloppy.
I heard that the Tein Yaris handled very well, but sadly didn't have the grunt that the other micro's had.

Love hearing about this car and glad it's going to good usage.

This is not an FIA spec cage, it is missing a number of mandated bars.

On one hand it is overbuilt per SCCA specs, with three extra bars that are not required. However, it was made with the minimum size tubing 1.5". Considering the small size of the tubes, I will happily keep the extra bars.

Just last week I installed the optional dash bar in our SSC class Nissan , 1.75" tube, it only weighed 7lbs. So even if I cut away all the extras in the Yaris, I might only save 30lbs, not worth it.

[lilredrocket]

What about the spare tire well? Cut it our and put in a flat piece of sheet metal to make it all flat?

[jkuchta]

PM me if you need interior tin work done. My shop is in Fullerton.

[Jason@SportsCar]

What about the spare tire well? Cut it our and put in a flat piece of sheet metal to make it all flat?

No plans to change it... Unless we have to run a fuel cell. We are legal with the OE tank, but if we cant run the car on fumes without fuel cut, we will install a cell.

Sitting at Beta Motorsports right now, as John builds our new exhaust. :cool:

Only about ten days left to prep before the first race... There is way to much to do. :burnrubber:

[Doc Zaius]

This is a fun thread! :biggrin:

[Jason@SportsCar]

First race is right around the corner - pending my success in the garage this weekend - if anyone is around PIR (Phoenix International Raceway) Jan 16-18, stop by and check it out. Cost nothing to watch.

[minired5stby]

Have someone take lots of pics and video cause unfortunately I'm in Cali.

[Jason@SportsCar]

Have someone take lots of pics and video cause unfortunately I'm in Cali.

We will be racing at Fontana the next weekend.

[advocate]

Good luck on the race! We're all cheering for you!

[minired5stby]

We will be racing at Fontana the next weekend.

Right on, I will try to make it out since its only an 1hr 1/2 away.

[Jason@SportsCar]

We recently did a feature on fire suppression systems. Just for fun we decided to test one: http://www.youtube.com/watch?v=0rrc6GPdHLg

[lilredrocket]

When are you coming close to Texas?

[Jason@SportsCar]

NOOOOOOOOOOOOOOOOOOO :cry:

I guess someone knew I was behind on my prep for this weekend, the race just got canceled. I guess they are replacing the catch fences at PIR and wont be done in time.
http://www.calclub.com/forums/index.php?act=attach&type=post&id=431

[knowmercy]

Seeing all this makes me want to go rip out the rest of my interior! Show cars are fancy and all, but when you see a car that's been properly setup for racing it's DEAD SEXY in my eyes! Too bad there isn't much of a SCCA scene up here in northeast ohio :( There is a local track (Nelson Ledges) but I don't think there are too many who'd do a submicro class.

[Jason@SportsCar]

WOW... I just saw the proposed graphics package for the car, the art director for Racer magazine (who does all of our special project for Toyota) is building them, and the car will get a full wrap. :cool:

They wont be installed until we are 100% done with the exterior, we still have to see how much fender work we need to fit the 10" wide slicks, but it will look sick - for a Yaris. :wink:

[cali yaris]

"for a Yaris" -- sacrilege, ban him!

kidding.... :smile: Jason do you know the car's weight yet?

[Jason@SportsCar]

"for a Yaris" -- sacrilege, ban him!

kidding.... :smile: Jason do you know the car's weight yet?

Less than when I started... But far from done. I would guess someplace in the 2000lb range right now, but with lots left to do.

[cali yaris]

I gotta go find a scale to put mine on, very curious.

[justjesus]

Sorry to hear about PIR. When are you doing Fontana?

[Jason@SportsCar]

Sorry to hear about PIR. When are you doing Fontana?

Going to be there Jan 22-24. Hope its dry.

Run group N2.

http://www.calclub.com/html/html2/2010/2010Jan22_24_Nat_Dbl_Reg_Schedule.pdf

[Jason@SportsCar]

Well aside from rolling some fenders I had not done any bodywork in about 15 years, this weekend I had to tackle making a pair of covers to replace the headlights. The rules require the OE light assemblies are replaced with piece of an alternative material, likely a rule based on the very old British cars that we will be racing against that have glass lights.

So I picked up some fiberglass materials and used the old lights as a mold. Everything went very smooth. :cool:

Just got our tires in today, waiting on these has held up the fender work to the point I am not sure we will make this weekend. Anyone try to fit a 10.4" wide slick on a Yaris yet? :eek:

http://myscca.com/photo/250/2010/01/19/961a6efdfd1261dd5c8367ffb441_4.jpg

[cali yaris]

Anyone try to fit a 10.4" wide slick on a Yaris yet?

yup, for drag racing

[Jason@SportsCar]

yup, for drag racing

Got pics? Of course there is the small issue that we need to be able to turn, and have room for suspension compression. :biggrin:

[kngrsll]

Got pics? Of course there is the small issue that we need to be able to turn, and have room for suspension compression. :biggrin:

:laugh: i thought about saying something like that

[Jason@SportsCar]

Well, knowing that I would likely have to cut the fenders to fit the big tires anyway, I went at it last night with the fender rolling tool. Not even close to enough clearance with a big roll. We are going to have to break out the cut off tool and do a little slice and dice.

More parts are arriving daily, but this weekend looks like a long shot. :frown:

We built our last project car in eight weeks, and I thought I could beat it. But I guess five weeks was unrealistic.

[cali yaris]

i thought about saying something like that

I'm glad you didn't say something like that. :laugh:

these are 14 x 8, with a 15mm spacer, but not 10, so I was incorrect about that part! ...but you get the idea. no problem with turning radius with these.

http://www.microimageonline.com/images/garm/slicks-1.jpg

http://www.microimageonline.com/images/garm/slicks-2.jpg

http://www.microimageonline.com/images/garm/slicks-3.jpg

[Jason@SportsCar]

I'm glad you didn't say something like that. :laugh:

these are 14 x 8, with a 15mm spacer, but not 10, so I was incorrect about that part! ...but you get the idea. no problem with turning radius with these.



Not much room for suspension compression there.

Even with the 10.4" wide tire I can get enough turning radius. The issue is going to be suspension travel. So we will cut the fenders, and then decide if we need to flare, or just leave it open.

[cali yaris]

well you said this:

Got pics? Of course there is the small issue that we need to be able to turn, and have room for suspension compression.

so I responded about the turning radius.

What are you using for springs and shocks/struts?

[Jason@SportsCar]

What are you using for springs and shocks/struts?

We are having shocks made. Springs, very short and stiff. :wink:

[cali yaris]

if you're going full stiff, you shouldn't need a whole lot of travel, right?

What about the springs? Any details?

[kngrsll]

yeah, i would love to see that set up... mind taking pics before you install the components??

that car looks mighty good with those big ole front tires. i think i may need to get some spacers for my 15x7's +25's so i can flare my fenders some more :biggrin:

[Jason@SportsCar]

if you're going full stiff, you shouldn't need a whole lot of travel, right?

What about the springs? Any details?

You would be surprised at how much even a stiff car travels.

On this car we tripled the OE spring rates, and there was enough body roll on street tires to tuck them in the fenders.

http://www.youtube.com/user/SportsCarMag#p/a/u/1/tgjRt6_cxVk

[cali yaris]

I see that big tuck about 00:56. I know nothing about RX-8's though.

Is that a 'no' on the details of your springs? I'm sure the racing community on here (and not just me) is quite curious about the details of your set up.

[Jason@SportsCar]

I see that big tuck about 00:56. I know nothing about RX-8's though.

Is that a 'no' on the details of your springs? I'm sure the racing community on here (and not just me) is quite curious about the details of your set up.

And it can be worse on the road course, I like using the curbs. :biggrin:

Details will be in SportsCar.... However, these things always seem to come out after the issue is in people hands. :wink: But part of it is not being 100% on the rates right now. The shock builder will give us a range to start with, and then it will be determined by laps times, and the but dyno.

[justjesus]

Cool video of the RX-8. Looks like you're using a Go-Pro?
I'll need to pick up an issue of SportsCar.
Hmm. This weekend in Fontana. I will try and make it out. :) (to watch)

[Jason@SportsCar]

Cool video of the RX-8. Looks like you're using a Go-Pro?
I'll need to pick up an issue of SportsCar.
Hmm. This weekend in Fontana. I will try and make it out. :) (to watch)

Yes, we have a number of GoPro cameras here, both the wide and normal view. Great product for the price. Our only gripe has been the audio. This weekend we will have the new HD version in the Sentra that my boss is racing, and the audio is reported improved over the past units.

Now if UPS does not bring me some Toyota parts in the next few hours, the Yaris wont be seeing the track this weekend. :frown: Worst case I will tow it up there on Sun to get the log book and annual tech out of the way, but it wont be race ready.

[Jason@SportsCar]

Well I am sitting at the office waiting for parts to be delivered, when I should be at the track getting ready for practice. :thumbdown:

Things are not looking good for a race this weekend. But, while I have been here we set up a test day in mid Feb. This will help prevent the trial by fire, which we would have experienced by racing the car this weekend.

I was not thrilled by the idea of the cars first outing being a National Club Race. The more I work on the car the more frightening it is. The twist and tape wiring I found early on was only the tip of the iceberg. Last night I found the top mounting bolt on the left front strut was finger tight.

Looks like we have all the shock dimensions nailed down, and with any luck we should see them in about six weeks. :drool:

[justjesus]

Yes, we have a number of GoPro cameras here, both the wide and normal view....


I got a wide version (they were out of normal). I love it. Same gripe as you: sound! Now, if I can only remember to mount/use it at the autocross events! Same with my MaxQData. ugh.



Things are not looking good for a race this weekend...

Looks like we have all the shock dimensions nailed down, and with any luck we should see them in about six weeks. :drool:

shucks. I cleared my Saturday. Sunday, well, that was already clear :)
Sorry to hear about this weekend, and your iceberg.:thumbdown:

YIKES. Six weeks? Where's the smiley that passes out?

[kngrsll]

what spring rates did you end up running? i am currently running 375 F and 342 R on Tokico HTS's with a 23 mm rear sway bar... curious to hear what you guys run.

[jekqmb]

Garm your car looks amazing on slicks! You better be going to Import Alliance this year!
Good luck with the tires Jason, i think you guys can pull it off! Also got any updated pics of your progress as of now?

[mojoyaris]

I'm curious to see how this is all going to come through.
10 in wide eh?

[Jason@SportsCar]

So Sunday came and went without the Yaris leaving the garage. I did go to AAA Speedway on Sunday to watch last years project car race (Nissan Sentra SER Spec V, that was built for Showroom Stock C for only $3k). My boss (Philip) ran the car in the SSC Natl race, qualified 2nd and finished 2nd - I was very happy to see he was lapping 1 sec slower than I ran in the car last June. :thumbsup:

Yesterday we had a "work from home day" so I could nail done the rest of the items to get our car SCCA Club Racing legal. Finally we are log book ready and can start racing the car. Fire system, kill switch, seat, belts, wheel, pedals and preliminary bodywork are done. :thumbup:

Philip also came down to "help", instead he built a new exhaust for the Sentra, this only cost me about an hour of my time. :laugh:

Making the bumpers secure without all of the mounting hardware, and crash beams was a project. The fiberglass headlight replacements seemed to take forever, but they are on - they still need to be finish sanded and painted, they are in primer right now.

We have yet to cut the fenders, so we are sitting on some old Kumho V710s, rather than our race slicks. Trying to determine how much to cut when we don't have our suspension yet is a bit of a gamble. But we will probable go ahead and cut them to fit the slicks now, and deal with further fender messaging after our suspension shows up.
http://farm3.static.flickr.com/2700/4308973089_34d8e3b413_b.jpg
http://farm3.static.flickr.com/2709/4308973299_c12c5f7ff8_b.jpg

[cali yaris]

Looking very good man! Aww... my old bumper... :wub:

Is that a stock radiator?

[Jason@SportsCar]

Is that a stock radiator?

No, its a Koyo. It came with the car, and we cant see any reason to change it.

[Jason@SportsCar]

We just got back from the SCCA natl convention in Vegas. :cool: Had a chance to talk with a number of people involved with the Prod class rules making. Found out we were misinterpreting our wheel allowance... We thought we had to run 15x7 wheels, but it turns out that is the max size for our car in HP. So we are putting off the fender cutting until we have a chance to test fit a 13x7.

Going to a 13" changes our tires from a 23" diameter to 20". This will change our effective final drive by a good margin, lowers the car 1.5" without screwing up the geometry, and would drop another 20lbs from the car. Yet we still maintain a 10.4" tire width. :thumbsup:

I did have some time to kill so I removed my first rear side window. Covered it in some spare vinyl and gave it a good whack with a rubber mallet. That was fun, and way quicker than removing it the correct way. Now I just have to cut and fit the plastic replacement.

I have continued trying to convince the SEB/PAC (Solo rules makers) to move the Yaris from EP to GP, as it is way underpowered for EP, but no luck. They want to see how it pans out in HP Club Racing before they risk upsetting GP with a newer car. :frown: So we will likely skip autocrossing this car on the natl level, and strictly focus on road racing.

[cali yaris]

I have some V2 13x8 wheels here if you're interested.

[Jason@SportsCar]

I have some V2 13x8 wheels here if you're interested.

I might have to send Philip over there to pick one up for a test fit. :wink:

[cali yaris]

as you wish! :smile:

[Doc Zaius]

Hi Jason,

I recently dug out my copy of Siphon #1, and checked out the article on the Tein Yaris. I thought you might find some of it interesting:

...
In order to offset the weight of the full cage, TEIN even went as far as to remove all excess hardware and wiring. Chase [Philip Chase, TEIN USA sales and marketing manager] regaled us with stories of clipping wire harnesses out of the car, later crossing his fingers as he turned the ignition, hoping that the extricated wires were in fact as non-essential as he believed.
... :eyebulge:

Take care... and good luck with your build & racing! :thumbsup:

[Jason@SportsCar]

Hi Jason,

I recently dug out my copy of Siphon #1, and checked out the article on the Tein Yaris. I thought you might find some of it interesting:

:eyebulge:

Take care... and good luck with your build & racing! :thumbsup:

Well that explains the missing OBDII port. The people doing our new dash/data system are thrilled about doing it from scratch, rather than just plug and play. :mad:

Seems odd that they would ditch the useful stuff, then install 12lbs of 0 gauge wire and a 35lb battery. :iono:

[Doc Zaius]

Well that explains the missing OBDII port. The people doing our new dash/data system are thrilled about doing it from scratch, rather than just plug and play. :mad:

Seems odd that they would ditch the useful stuff, then install 12lbs of 0 gauge wire and a 35lb battery. :iono:

Maybe it b/c they actually had this sales and marketing manager guy doing all the work! lol :biggrin:

[Jason@SportsCar]

Had a productive weekend... Both of the rear side windows have now been replaced with 1/8" plastic for a nice weight savings. I pulled the headlight covers to add another layer of fiberglass, they are much stiffer now, and I was able to close up some of the gaps around the edges.

Got our fender flares and did a mock up, should give us just enough width to cover the tops of the tires, but with out making the car super wide.

Friday we have our log book inspection being done. And Sun we are off to the track for our first test session. :thumbsup:

[cali yaris]

what wheels and tires are being used?

[Jason@SportsCar]

what wheels and tires are being used?

For our test day we are going to burn up some old 205-50-15 Kumho V710s, mounted on 15x7 Motegi Traklite wheels - these are off of the SportsCar ITA Miata project car.

We have some 15x7 Kosei K1 TS wheels, wrapped in 23-9-15 Goodyear Eagle Sports Car Specials (10.4" wide bias ply cantilever slicks) ready to go, but we are still looking at making the change to 13"s for the gearing advantage.

[Jason@SportsCar]

It's always something. :mad: Getting ready to load up for our tech inspection... And the alternator is bad. No I have to try and pick one up on the way to the office.

300 miles on this car and the alternator fails. :confused:

[90tsi]

that sucks a fat one. ive installed tons of "new" junk parts.... starters alternators...etc im enjoying your updates on yalls project

[Jason@SportsCar]

:mad::mad::mad::mad::mad:

I was not able to pick up the alt on the way in... My wifes fourth flight of the week to NY got canceled for tonight. So I had to run in early so I can go home at 10:00 and take her to the airport. Car will have to wait for a few hours.

In more fun news, the Yaris makes a cameo in this news story: http://www.ocregister.com/video/?videoId=66218689001&lineupId=1125901233

[Jason@SportsCar]

Time to start drinking :drinking:. None of the usual places have a rebuilt alt for the Yaris, and with a rebuilt going for $200 I don't want to call the dealer - and don't have time to get one from our usual Toyota channel. So I guess I will brave using a local re-builder that tells me he can get it done today. :iono:

[Bluevitz-rs]

With all the cut wiring did you check to make sure there's power going to the IC on the alternator before deeming it a dud? The centre wire should have 12V with the car running. (Black with a red tracer is what I have in my '05 Echo wire diagram. Should be the same in the Yaris I hope.) You can use a cheap steel needle as a back-probe.

[Jason@SportsCar]

With all the cut wiring did you check to make sure there's power going to the IC on the alternator before deeming it a dud? The centre wire should have 12V with the car running. (Black with a red tracer is what I have in my '05 Echo wire diagram. Should be the same in the Yaris I hope.) You can use a cheap steel needle as a back-probe.

Everything worked fine any time we have started it in the last month.

But we just had the alternator tested, and it checks out. Might be the kill switch. No I get to start chasing wires.

[90tsi]

just cuz the alternator checks good the regulator could be out in it... ive had that happen a few time in an old dsm and hondas ive worked on.. but if you have done as much harness modding as it appears wouldnt hurt to give it a real close once over.

[Jason@SportsCar]

So I pulled the dash cover and checked the wires on the kill switch (alt and batt both run in/out of it). They all were tight, but the batt light went off and I had 14v at the batt. I went ahead and tightened all the leads, even though none were loose. At this point hopefully the issue is gone, or it will show up at our test day and we can nail it down before the first race.

I think the kill switch may be bad internally.

Also had a chance to weigh the car. Down to 1934lbs (from 2176lbs when we got it), and we are not done yet. Goal is to hit 1850lbs without driver - still puts us over our minimum weight, but so far it is lighter than I expected.

[90tsi]

glad to hear hopefully it wont be a on going gremlin.

[Jason@SportsCar]

More news, and a pic of the Yaris: http://www.ocregister.com/news/dog-234078-isley-bonnie.html

http://images.onset.freedom.com/ocregister/gallery/kxqy3c-b78604430z.120100212125314000g52mgvlk.1.jpg

[NonStopTuning]

More news, and a pic of the Yaris: http://www.ocregister.com/news/dog-234078-isley-bonnie.html

http://images.onset.freedom.com/ocregister/gallery/kxqy3c-b78604430z.120100212125314000g52mgvlk.1.jpg


Looking forward to more pics of the Yaris :thumbsup::thumbsup:

[justjesus]

Damn, that's light!

Nice pooch. And nice way to make the paper :)

[cali yaris]

1934 is very good, I think that's the lightest one we know about.

[Jason@SportsCar]

Had our test day. We ended up on the Street of Willow, our friends at the Fast Lane racing school ( www.raceschool.com ) let us slide in between student session. :thumbsup:

First session went pretty good, did some easy laps to seat the new brake pads, and to make sure nothing was going to fall off. We were also trying to run the car out of gas, no knowing how old or what was in the tank.

Near the end of the session the car started to mis and lack power, also got a CEL. I figured we had finally run it out of gas for the most part. Pulled in to the pits and dropped in a couple gallons of 100oct unleaded.

Turning off the kill switch reset the computer and things went ok for about half a lap. Then CEL, and the car would not go over 35mph.

Checked the fuel pressure, it was a solid 40psi. Pulled all the plugs, they looked like new. Started checking wiring - this was the one good part of the day - hidden in the birds nest of wires tucked in the base of the A pillar was the OBDII port that I thought had been removed (how and why it ended up there I will never know). :thumbup:

We scanned and found code P0301, misfire in cylinder #1. Now we just have to figure out which if the twelve things that can cause that problem it is. :frown:

All in all we had a good day. The car seemed to handle OK, even on very used up V710s. The brakes worked good. I need to adjust the brake pedal a little to help with heel/toe - the brake pedal is a little to low. No smoke came out of the car. The oil and water are all clean. And most important, nothing fell off.

Now we have two weeks before the first natl race for the car. I sure am glad we found this problem on our test day, would have sucked to this happen in a race.

[cali yaris]

solid CEL or blinking CEL?

40 psi fuel pressure seems a little low if that was under load.

working out the kinks, that's a good thing. Streets are fun in a Yaris.

[Jason@SportsCar]

solid CEL or blinking CEL?

working out the kinks, that's a good thing. Streets is so fun in a Yaris.

Solid. Fuel pressure was checked at idle and at 3krpm. I tend to think the problem is fuel related. The car sat as long as two years, with who knows what in the tank, and crapped out right as I get to the bottom of the tank. Step one, pull the fuel pump.

[Bluevitz-rs]

solid CEL or blinking CEL?

40 psi fuel pressure seems a little low if that was under load.

working out the kinks, that's a good thing. Streets are fun in a Yaris.

Yeah I've had a blinking light before on a track day. Checked the code and found a cyl 2 misfire. But I think it was caused by too much limiter under part throttle.

I was told by one of my buddies from Toyota Canada that the flashing light indicated a lean condition and the Cat could potentially be damaged (melted). :flame:

[Jason@SportsCar]

I was told by one of my buddies from Toyota Canada that the flashing light indicated a lean condition and the Cat could potentially be damaged (melted). :flame:

We don't have one.

[Bluevitz-rs]

We don't have one.

Then are you running a different ECU? Or have you modified the signal going to the ECU to make it think there's a cat?

Because if the cat has been taken out with a stock computer, it'll set a code every time.

[Jason@SportsCar]

Then are you running a different ECU? Or have you modified the signal going to the ECU to make it think there's a cat?

Because if the cat has been taken out with a stock computer, it'll set a code every time.

That would be a different code. :wink:

[Bluevitz-rs]

The missfire could be caused by the cat delete. The reduced backpresure could be the cause. The ECU could be retarding the timming due to the code and that the lack of power.

[Jason@SportsCar]

The missfire could be caused by the cat delete. The reduced backpresure could be the cause. The ECU could be retarding the timming due to the code and that the lack of power.

The cat does not show up on my list of possible causes. :iono:

[Bluevitz-rs]

You have to think of it this way...

... with less back-pressure you get more exhaust out of the cylinder on the exhaust stroke, but the intake charge is still the same on a N/A motor. (ok, not EXACTLY the same due to valve overlap and the effect that has on pulling in air, but basically the same.) The intake charge will be "cleaner" than what a stock ECU is programmed for. The stock A/F ratio is based on the back-pressure being there and the amount of residual exhaust gasses still left inside the cylinder on the intake stroke.

A very simple cheat to make the ECU run richer is to trick it into thinking the engine is colder that it really is. If you add a resistor to the Water Temp Sensor and make the ECU think the engine is only running at 110°F or so it'll think it needs more fuel for running in the cold weather. (this might also set a code for the thermostat, but it's nothing major.)

Another method is to add a resistor to the intake temp sensor in the MAF meter. You can trick it into thinking it's sucking in air at -40°. This should have the same effect, but with less chance of setting a code.

[Jason@SportsCar]

You have to think of it this way...

... with less back-pressure you get more exhaust out of the cylinder on the exhaust stroke, but the intake charge is still the same on a N/A motor. (ok, not EXACTLY the same due to valve overlap and the effect that has on pulling in air, but basically the same.) The intake charge will be "cleaner" than what a stock ECU is programmed for. The stock A/F ratio is based on the back-pressure being there and the amount of residual exhaust gasses still left inside the cylinder on the intake stroke.

A very simple cheat to make the ECU run richer is to trick it into thinking the engine is colder that it really is. If you add a resistor to the Water Temp Sensor and make the ECU think the engine is only running at 110°F or so it'll think it needs more fuel for running in the cold weather. (this might also set a code for the thermostat, but it's nothing major.)

Another method is to add a resistor to the intake temp sensor in the MAF meter. You can trick it into thinking it's sucking in air at -40°. This should have the same effect, but with less chance of setting a code.

This issue is not cat related. Thanks.

[CTScott]

Are you running the stock drive by wire throttle body, or is it upgraded to a cable throttle? If it's still DBW, going into limp mode is indicative of a failure of one of the two APP (accelerator pedal position) sensor circuits.

[Jason@SportsCar]

Are you running the stock drive by wire throttle body, or is it upgraded to a cable throttle? If it's still DBW, going into limp mode is indicative of a failure of one of the two APP (accelerator pedal position) sensor circuits.

Yes, still DBW. And it does seem to be in limp mode.

[Jason@SportsCar]

Test day pics:
http://farm3.static.flickr.com/2702/4363447582_e5304face3_b.jpg
http://farm5.static.flickr.com/4020/4363447758_bd80f654df_b.jpg

[YarisSedan]

LOL if i didnt know what HP means for SCCA i would look at your car at quick glance and it looks like your advertising your car has 51 horsepower.

[markitect]

Guys, he knows what he's doing

If it started when he was almost out of gas then there was probably gunk floating on top of the fuel which has now clogged the fuel filter, fuel pump or an injector(s).

Although with it being only one cylinder I would probably rotate the injectors around and see if the misfire moves, before I pull the fuel pump/filter, but I also have an interior in the way.

Good to see it on the track!!!!!!!!!

[Jason@SportsCar]

Just to eliminate it as a possibility, and so we don't have to do it later, we are taking the fuel injectors and pump to RC Engineering this week to have them tested and cleaned. One less thing.

[kngrsll]

i thought about putting a 89.5 wHP sticker on my rear bumper just to rub a little more salt in the wound :)

[Jason@SportsCar]

i thought about putting a 89.5 wHP sticker on my rear bumper just to rub a little more salt in the wound :)

I started with 5 HP (last digit of the VIN), but someone in the same race group had 5 reserved, so they asked me to change it.

It is all temporary anyway... Once the new graphics are done it will have a number that is significant to Toyota's racing history. :wink:

[Loren]

Um... did you put new plugs in?

I've put more than a few track miles on my Yaris and the only misfire problem I ever had was due to the factory "100,000 mile" iridium spark plugs.

Replaced them with a set of plain ol' parts store NGK's, problem solved.

I got two different codes from this problem, and at least one "shut down" that happened 2-3 times, but didn't set a code. Apparently, when the ECU detects repeated misfires (such as when I graze the rev limiter in 3rd coming out of turn 17 at Sebring), it just says "NO" and goes into limp mode until you cycle the ignition.

So, if you haven't already, put a new set of plugs in it.

[Jason@SportsCar]

Um... did you put new plugs in?

I've put more than a few track miles on my Yaris and the only misfire problem I ever had was due to the factory "100,000 mile" iridium spark plugs.

Replaced them with a set of plain ol' parts store NGK's, problem solved.

I got two different codes from this problem, and at least one "shut down" that happened 2-3 times, but didn't set a code. Apparently, when the ECU detects repeated misfires (such as when I graze the rev limiter in 3rd coming out of turn 17 at Sebring), it just says "NO" and goes into limp mode until you cycle the ignition.

So, if you haven't already, put a new set of plugs in it.

We have not yet, but we will be replacing the plugs and coils while we are waiting on the injectors. Better to have it all fresh.

[Loren]

If you shotgun everything, you'll never really know what the problem was or which of your spares are actually good parts.

Troubleshooting 101: Change one part at a time.

[Jason@SportsCar]

If you shotgun everything, you'll never really know what the problem was or which of your spares are actually good parts.

Troubleshooting 101: Change one part at a time.

Spares are not used parts. :wink: At some point it will all be new, so might as well get this stuff out of the way.

Change one part at a time if you want to take a week. Replace it all with good stuff right off the bat, and hopefully you never touch it again. :burnrubber:

If I had a spare motor I would just put it in, God knows what was done to this thing when it had FI. But I don't have a spare, so we will just wait till there is a break in the season for a proper build. :cool:

[cali yaris]

such as when I graze the rev limiter in 3rd coming out of turn 17 at Sebring

name dropper :wink:

[Loren]

Spares are not used parts. :wink: At some point it will all be new, so might as well get this stuff out of the way.

I meant the old parts that you're taking off. Are you planning on pitching them? Surely you'll keep them around as spares... and wouldn't it be nice to know whether or not they are good?

But, sure, if you've got more budget than time... rock on!

[Jason@SportsCar]

I meant the old parts that you're taking off. Are you planning on pitching them? Surely you'll keep them around as spares... and wouldn't it be nice to know whether or not they are good?

But, sure, if you've got more budget than time... rock on!

Most of the time its more time than budget, but we already missed one race, so we will do everything we have to make the next. I am not a fan of keeping old parts as spares - you took them out for a reason. :iono: Once I know what parts a car uses I always try to keep new ones. For the RX-8 it is coils, plugs and a fuel pump. For the Corvette it was a rear hub and a gas pedal. As long as I had the parts on hand I never needed them at a race. :laugh:

Looks like we are going to try and get some dyno time before the race, that will be our only chance to beat it up and see if the problem returns.

It will also be good to know if this Camcon unit is tuned safe, or if we should just leave it off. A better ECU setup will come later.

[Jason@SportsCar]

Wife pulled off second in breed at Westminster. Good, but not what she wanted. :frown:

http://video.usanetwork.com/features/westminster_dog_show/sporting_group/v1202192

[NonStopTuning]

Test day pics:
http://farm3.static.flickr.com/2702/4363447582_e5304face3_b.jpg
http://farm5.static.flickr.com/4020/4363447758_bd80f654df_b.jpg

Great pics sir, keep up the good work!

And please continue to share your updates with us. I certainly do enjoy reading them.

Thanks again!

:thumbsup::thumbsup:

[Jason@SportsCar]

It is a very rare day when I don't love my job... But some days it just gets better. Hearing of our small stumble, we have been invited to bring the Yaris to the Toyota tech center for a once over and any help needed to get it in tip top shape for the upcoming race. :w00t:

Having access to all of the proper diagnostic tools, and the guys who can fix these cars in their sleep. Priceless.

[justjesus]

^ VERY NICE! I wonder if I can make my yaris look like yours before YOU take yours in...

[Jason@SportsCar]

^ VERY NICE! I wonder if I can make my yaris look like yours before YOU take yours in...

You would first have to find the place. :laugh: When we picked up the Yaris, at a different location, we were sure we had the wrong place. You could walk right up to the door of some of these places and not even know you are there, just looks like any old warehouse with an empty parking lot. Sneaky.

[Bluevitz-rs]

It is a very rare day when I don't love my job... But some days it just gets better. Hearing of our small stumble, we have been invited to bring the Yaris to the Toyota tech center for a once over and any help needed to get it in tip top shape for the upcoming race. :w00t:

Having access to all of the proper diagnostic tools, and the guys who can fix these cars in their sleep. Priceless.

Are you referring to Toyota USA head office (TMC) in Torrance?

P.S. I used to work for Toyota Canada technical training, so I'm not a noob to diagnosing a toyota either. So hopefully it just a wiring problem messing with signal, or just the fact that you ran the tank dry. :thumbsup:

[Jason@SportsCar]

Are you referring to Toyota USA head office (TMC) in Torrance?

P.S. I used to work for Toyota Canada technical training, so I'm not a noob to diagnosing a toyota either. So hopefully it just a wiring problem messing with signal, or just the fact that you ran the tank dry. :thumbsup:

Toyota has a lot of buildings stretched over a few square miles of Torrance. :wink:

[Bluevitz-rs]

Toyota has a lot of buildings stretched over a few square miles of Torrance. :wink:

o.k......:confused:

[cali yaris]

they sure do, and Rado's World Racing is right there too.

[SilverBack]

Nice transformation so far! Coming along nicely

You should Auto-X with us sometime :smile:

[ozmdd]

Most of the time its more time than budget, but we already missed one race, so we will do everything we have to make the next. I am not a fan of keeping old parts as spares - you took them out for a reason. :iono: Once I know what parts a car uses I always try to keep new ones. For the RX-8 it is coils, plugs and a fuel pump. For the Corvette it was a rear hub and a gas pedal. As long as I had the parts on hand I never needed them at a race. :laugh:

Looks like we are going to try and get some dyno time before the race, that will be our only chance to beat it up and see if the problem returns.

It will also be good to know if this Camcon unit is tuned safe, or if we should just leave it off. A better ECU setup will come later.


So, would this mean that you will pitch all the used parts you've pulled? If so, I'm happy to pay shipping to get them from you.

[Jason@SportsCar]

So, would this mean that you will pitch all the used parts you've pulled? If so, I'm happy to pay shipping to get them from you.

It would not be worth the time it took me to ship them. But thanks for the offer. :wink:

[Jason@SportsCar]

Nice transformation so far! Coming along nicely

You should Auto-X with us sometime :smile:

Maybe I will bring it to one of the El Toro events, much closer to home, and a way better site than Fontucky.

[kngrsll]

It would not be worth the time it took me to ship them. But thanks for the offer. :wink:

wow, i wish i was THAT cool

[Jason@SportsCar]

wow, i wish i was THAT cool

More power to you if you have time to do stuff for free. I have no interest in using my limited spare time to box and ship parts for zero return. :iono:

I already did it once, but that was a unique situation, I sent the Tein door panels to someone who paid for shipping. But to waste my time and someone else's money to ship used (questionable condition) expendable parts, that is just stupid.

However, if someone local wanted the parts - or to be the "good guy" and pick them up and ship them to another party - maybe we could work something out.

[kngrsll]

More power to you if you have time to do stuff for free. I have no interest in using my limited spare time to box and ship parts for zero return. :iono:

I already did it once, but that was a unique situation, I sent the Tein door panels to someone who paid for shipping. But to waste my time and someone else's money to ship used (questionable condition) expendable parts, that is just stupid.

However, if someone local wanted the parts - or to be the "good guy" and pick them up and ship them to another party - maybe we could work something out.

i am by no means an expert or professional in racing, but it is a hobby that i have huge passion for. I wouldn't have gotten anywhere without a lot of FREE help from good people, and when i get the occasional chance to give back and help someone out, i try to do it. So comments like that get under my skin. If you don't have time, i totally understand, but i think you can decline to help with a little more courtesy.

[cali yaris]

+1 !

umm... and you seem to have enough time to post a lot. just saying... :smile:

[Jason@SportsCar]

i am by no means an expert or professional in racing, but it is a hobby that i have huge passion for. I wouldn't have gotten anywhere without a lot of FREE help from good people, and when i get the occasional chance to give back and help someone out, i try to do it. So comments like that get under my skin. If you don't have time, i totally understand, but i think you can decline to help with a little more courtesy.

On the other side of he coin, I have been at this for a long time and have seen people benefit from my (and others) generosity. Example, helped a guy out with a set of usable tires we no longer needed, he sold them instead of using them as intended. So excuse me if I don't rush off to give away parts. As far as more courtesy, I guess you are entitled to your opinion.

[Jason@SportsCar]

+1 !

umm... and you seem to have enough time to post a lot. just saying... :smile:

I can post and do my job from my desk.:wink: Leaving to pick up, box and ship parts is not part of my daily routine.

[kngrsll]

On the other side of he coin, I have been at this for a long time and have seen people benefit from my (and others) generosity. Example, helped a guy out with a set of usable tires we no longer needed, he sold them instead of using them as intended. So excuse me if I don't rush off to give away parts. As far as more courtesy, I guess you are entitled to your opinion.

people will always dick other people over, that is part of life. I know that, everyone knows that so you aren't onto anything new there. But in my life, i would rather give someone the benefit of the doubt until they prove that they deserve otherwise. And that apparently, is the difference in opinion so there is no point in going on any further on the subject.

[Jason@SportsCar]

UPS just dropped off the new clutch, pressure plate and flywheel. This is going to have to wait a few weeks to get installed.

[Jason@SportsCar]

Fenders are done, looks funny with a 205-50-15 under there.
http://farm5.static.flickr.com/4026/4377221075_de7d97f216_b.jpg
http://farm5.static.flickr.com/4011/4377220395_6680880165_b.jpg

[SilverBack]

I kinda like the fender flares, but are they necessary with only 205/50's?

Also, are those Rota Flights installed?

[Jason@SportsCar]

I kinda like the fender flares, but are they necessary with only 205/50's?

Also, are those Rota Flights installed?

Those tires were for our test day, took them off the ITA Miata we built a few years back, for now they just hold the car up. We will race on a 23-9.5-15 bias slick (which is 10.4" wide).

No, those are Motegi Traklites.

[cali yaris]

any shots of the install? I'd like to see how much fender you cut away under there.

[Jason@SportsCar]

any shots of the install? I'd like to see how much fender you cut away under there.

In the rear I cut away about .75", and nearly 2" in the front. The rear flares are at the same height as the OE fender, while the fronts are up .5" for extra compression travel.

[cali yaris]

did your cuts include the bumper (plastic), or only towards the top, taking away metal fender material?

[Jason@SportsCar]

did your cuts include the bumper (plastic), or only towards the top, taking away metal fender material?

Both. Just in case we end up staying with the 15"s we wanted to make sure we had lots of clearance - had we committed to 13"s I would have installed the flares without touching the fenders. But we cut away enough material to make up for the weight of the fiberglass flares.

[cali yaris]

thanks, that is helpful. I don't want to cut my fenders for the 13's unless I have to.

[Jason@SportsCar]

thanks, that is helpful. I don't want to cut my fenders for the 13's unless I have to.

When we did the math for the 13" slicks, 20-9.5-13 (10.5" wide by 20" dia) we found that the car would hit the ground before it hit the stock fenders. In fact we were only going to be able to lower a .5" from where it is now and be able to maintain what we thought as enough ground clearance.

Your A6s are a little taller (20.9" for the 255), the rear should be fine, the front could be close under compression. If in doubt, pick up some bone yard fenders to hack up.

[cali yaris]

I'm probably going to raise it a 1/2" and see where that leads me. I'm also putting in the AOE front sway bar, that should help cut the roll just a little bit more.

[aucorium]

did you manage to find the problem of the misfire on cylinder 1 ?

[Jason@SportsCar]

did you manage to find the problem of the misfire on cylinder 1 ?

It is being addressed wed and thurs.

[Jason@SportsCar]

Heading off to the dyno/tuner.

Then up to Toyota in the AM.

Hope we get it all worked out.

[cali yaris]

good luck!

[Jason@SportsCar]

We had a combination of issues.... The fuel injectors were to big, and someone used the more is better method of tuning.

We installed new plugs and did a baseline run with the Camcon off, the ECU was just flooding the car. It was pulling max fuel trim, 40%, and it was still super rich. Turned the Camcon on for the next run and it was worse, they were adding fuel. The car did not want to idle, and was fouling the plugs. We can only assume it was tuned for FI, and never re-tuned after they pulled it. :iono: Shame, because they left power on the table.

Our tuner made a number of adjustments and actually got the AFR really good, picked up some power too. But in the end the ECU was still trying to pull fuel back due to the injectors.

Went to Toyota today and they replaced them with a OE set of Yaris injectors. The ones in the car were out of a 2003 Celica.

We recalibrate the Camcon to work with the smaller injectors, makes really good power now. :w00t:

[jclo3313]

New life into an tossed aside icon.....very cool!

[cali yaris]

I wonder what really good power is...can you say?

[YarisPR]

I wonder what really good power is...can you say?
I was asking the same thing :evil:

[Jason@SportsCar]

I wonder what really good power is...can you say?

Less than your car. :biggrin: Final number will be printed in the magazine.

[Jason@SportsCar]

Heading up to Willow Springs now.

So looking forward to Saturdays practice and qualifying in the rain. :frown: I was able to score some "rains" from a buddy, which is just set of used Toyo R1Rs from his ST Civic. Not great, but unlike with the slicks I should be able to stay on the track. :thumbup:

Five cars in H Prod, going to be fun.

Sat:
8:00am practice
11:30am qualifying

Sun:
8:00am warm-up
10:35am race

[Bluevitz-rs]

...Final number will be printed in the magazine.

What Magazine? When is it out? and is it available in Canada?

[cali yaris]

SportsCar magazine is the official publication of SCCA -- he probably means that one?

Good luck this weekend, you're light, you'll do us proud out there!

[markitect]

Can't wait to hear how you did(and I'm in eastern time so I've already been waiting:D )

[Jason@SportsCar]

What a weekend... I experienced a lot of firsts. There was a bit of a let down, as three of the HP cars did not show. Apparently old British cars don't like the rain, so it was just me and the Honda - which has been the fastest car in HP this season in Socal.

My first time lapping in the rain with no defogger was interesting - well I had a defogger, it was a towel on the end of a stick. Twice a lap, on both straits, while travailing at a high rate of speed I had to pull the stick out of the drivers door and wipe the inside of the windshield so I could see. And the used Toyos were a bit slippery in the rain. Lucky that was just the first practice session.

The skies took it easy on us for qualifying, put the slicks on and went for it. Unfortunately, my transponder was not working - it was charged a month ago, and is supposed to last three months :mad: - so I got no times and had to start the race at the back of the pack. :frown:

The Sunday warm-up was full of some scary moments. I got the car on two wheels in the "balcony" turn. It is a banked 180 right hand turn, and there was enough grip to get a little tippy. I also believe I have done the first Yaris stoppie. :eek: I was trying to push my braking zone deeper in to turn 3, and hit the brakes a little to hard, an nice jolt forward and to the left. Philip was right behind me in our SSC Nissan and got a great view of it, he also got it on video.

Starting at the back you get a great view of all the madness going on. I quickly decided to hold back and wait for the field to thin out, it was an 18 lap race so there was plenty of time. The Honda was faster on corner exit and on the straits, he seemed to be geared way shorter than me, but I could get him going in the turns. I got a good run out of the "balcony" and passed him going in to 8. On the front strait he pulled me and dove right in front of me as we went in to 1. Then it got exciting... I don't know how I did not hit him (actually thought I did till I checked my front bumper in post race impound), turns out he cut a tire and nearly lost it in 1. When he checked up I nearly punted him. He went to the pits for a new tire, but in an 18 lap race it is all over if you have to do that, I ended up lapping him on the track.

So Toyota picks up its first SCCA National Club Racing win in HP with the Yaris. :thumbup:

Best lap time: 1:41.778
The Honda never got up to speed after the tire change, and only clocked a 1:45.138 (he was in the 1:43s in qualifying).

Hopefully we will get the video up in the next few days.

The car ran great all weekend. Our only small issue was a check engine light, P0335 (crank angle sensor), but is did not slow us down one bit.

[markitect]

Congratulations !!!!!!!!!!!!!!!!!!!!!!!

Hopefully the next one is a legit win.

[Loren]

Over a second faster than "the fast guy's" qualifying time. Not too shabby! The Yaris has potential. Now your challenge is going to be to make absolutely certain that there's nothing technically illegal on the car. You can bet they'll be looking if you keep running that well!

[Jason@SportsCar]

Congratulations !!!!!!!!!!!!!!!!!!!!!!!

Hopefully the next one is a legit win.

I have been on the other end with a broken car. A win is a win, and I will take it however it comes. To finish first, first you must finish. :wink:

Based on the prep we have done so far with were very happy with the performance, its only going to get faster. :cool:

[justjesus]

Post #191, nice summary! Thanks for keeping us posted.
Looking forward to the video.

[Jason@SportsCar]

Race ready

http://farm5.static.flickr.com/4039/4399945330_62b4b01126_b.jpg

Got wide tires?

http://farm5.static.flickr.com/4025/4399945240_79a6f1e45a_b.jpg

[Jason@SportsCar]

Video is up. Still waiting for the stoppie footage from our SSC car.

http://www.youtube.com/watch?v=4pkdQSV-x3M

[mojoyaris]

Very nice. I envy all your good weather and great tracks down south.

[Jason@SportsCar]

Video is up from our SSC Nissan Sentra.

Philip (SportsCar's editor) is racing the Sentra we built last season, and followed me around for a few laps during the warm-up session. He got a great view of the rear tires leaving ground, but was a little to far back to get a good shot with the camera.

http://www.youtube.com/user/SportsCarMagazine#p/a/u/0/3P2RnB1de1Y

In-car from his race:

http://www.youtube.com/user/SportsCarMagazine#p/a/u/1/_wBj1UFXSGE

[BLAZINBLUEVITZ]

Race ready

http://farm5.static.flickr.com/4039/4399945330_62b4b01126_b.jpg

Got wide tires?

http://farm5.static.flickr.com/4025/4399945240_79a6f1e45a_b.jpg

how come no MICROIMAGE stickers are on that thing???

[Jason@SportsCar]

Off to load the car up. Tomorrow it gets the aluminum flywheel and new clutch/pressure plate setup. :burnrubber:

[Loren]

Didn't look like the rear end came up so much as the front end just DOVE. Maybe a little more compression damping (or spring rate) in the front is in order?

[cali yaris]

how does an aluminum flywheel fit into your class? I'm still so confused about what you can do and can't do.

[Loren]

how does an aluminum flywheel fit into your class? I'm still so confused about what you can do and can't do.
Everything you ever wanted to know about SCCA Production class rules (http://cms.scca.com/documents/Club%20Forms/2010%20Tech%20Forms/prod-%20JAN.pdf)

[cali yaris]

Loren, I race in SCCA. I've read through the rules more than once. Why would I post the question if I could find it (easily) in the rulebook?

If Jason doesn't have time to answer, he won't answer, and that's fine. Seems to me, there has been plenty of helpful posting about keeping the car within the rules.

[Loren]

I looked at the link I posted and found the answer very quickly. Any flywheel the same size or larger than stock is permitted in HP. I don't understand your angst.

His flywheel will surely be within the rules for his class.

[Loren]

Upon further consideration, I think I see the problem. Garm, do you "race" with SCCA or do you "autocross" with SCCA? There's a big difference. Jason is building a "race car" in accordance with the SCCA "GCR" (General Competition Rules), which is the road racing rule book. I'm guessing what you've read is the SCCA Solo II rule book, which is a completely different animal and does not apply in any way to the car that Jason is building.

[kngrsll]

i really like NASA's TT rules... its a points based system. I am going to do a few events in TT-F this year,

[Jason@SportsCar]

how does an aluminum flywheel fit into your class? I'm still so confused about what you can do and can't do.

Loren posted the applicable section, and as he inferred the Solo and Club Racing rules are typically different. Even more confusing in some cases due to the class acronyms being similar, but having different meanings - Solo P=Prepared, Club Racing P=Production.

However, in our case (HP limited prep, Level 2) our rule set is very similar to the GP Solo rules. Unfortunately the Solo Events Board elected not to allow the Yaris in GP, so we can not competitively race our car in HP trim in Solo - it goes to EP, where it is way under prepared, and way under powered.

In a nut shell:

Body - Car is gutted and has a minimum 6 point cage. On-board fire system, kill switch, race seat, 5-point harness, window net. Drivers and pass side windows must be removed. All other glass can be replaced with plastic, 1/8" for side and rear, 1/4" for windshield. Hood and hatch/trunk may be replaced with composite units. Bolt-on fenders may be replaced with composite ones. Uni-body (rear) fenders may be cut and flared, composite may be added. Crash support beams behind bumpers can be removed.

engine - Level 2 prep must keep stock throttle body and fuel injection (injectors, fuel pump and regulator can be replaced, you just cant change the TB or manifold) . We can do port matching, valve job, cams, compression bump with a limit set by SCCA (we still have not received our spec, but most every car can go +1 pt), over-bore, balance & blueprint. CAI, header, no emission, exhaust just needs to exit behind the driver and be under 103db @ 50'. Engine management is open.

trans - if we use a stock trans no issues, shifter is open, clutch/pressure plate and flywheel are mostly free (no carbon multidisc units). We can also change ratios and use dog engagement, but you get a weight penalty. Final drive is open. LSD is open.

brakes - must use OE front caliper. Front rotor can be changed to a two-piece (aluminum hat), but must be stock size, and can not cross-drilled or slotted. Rear may be converted to disc, but can not be larger than the front OE brakes, and the rear rotor must be a solid non-vented disc. Brake lines, pads and master cylinder are open.

Suspension Level 2 prep - Stock pick up points (you cant move the rear beam mounts like many Yaris owners like to do :wink: ), shocks are open, springs are open but must be in the OE location (this means no coil-overs in the rear, but you can use an adjustable perch fitted in the stock location). Swaybars are open. Bushings are open. Camber adjustment is open.

Wheels and tires - 15"x7" max wheel size for the Yaris, smaller is ok. Any tire that you can fit on the wheel, but the top of the tire must be covered by the bodywork.

Minimum weight for the Yaris in HP is 1900lbs (w/driver) using a stock trans.

There is more, but those are the basics.

[Jason@SportsCar]

i really like NASA's TT rules... its a points based system. I am going to do a few events in TT-F this year,

The NASA system works well for the people who show up off the street with a car that is already setup. Take some time to look at the book and plan the build of a car from scratch, it will get expensive fast - especially if you take the time to test the various points combos to see which is the fastest.

With SCCA everyone in the same class gets the same mods. You can only spend so much.

[cali yaris]

Jason, thanks that is really clear.

Can you use TRD or solid engine mounts? Those work really well in my car.

Also consider the 23mm sway bar, it's +4mm over the TRD one.

[Jason@SportsCar]

Jason, thanks that is really clear.

Can you use TRD or solid engine mounts? Those work really well in my car.

Also consider the 23mm sway bar, it's +4mm over the TRD one.

Yes, we can change the engine and trans mounts. I should have had them done while the clutch was being changed and the trans was out.:stupid: Oh well, we can do them when we pull the motor later in the season.

We put an adjustable bar on the rear.

What are you doing posting on here... You should be in Fontana. :biggrin: KJ just brought his STX RX-8 by the house for a tire change, he killed his tires in the AM session. Now he is all set for Sun.

[cali yaris]

I should be out there, for sure! I'm going tomorrow.

The trans mount alone will make a very big difference and it's an easy bolt-on.

[Jason@SportsCar]

http://www.yarisworld.com/forums/showthread.php?p=449071#post449071

[Jason@SportsCar]

New hood installed this weekend, just a tick under 5lbs. I have not weighed the stock hood yet, so I don't know how much weight this saved.

Also replaced the wing windows with plastic.

edit: I just noticed how bad this makes the head light covers look now, I need to sand and paint them. :)

http://farm3.static.flickr.com/2794/4435154405_72a22972ff_b.jpg

[Jason@SportsCar]

Going to take the Yaris up to Thunderhill for the Double National this weekend.

Currently five entries in HP, and the group up there is plenty fast.

We would have liked to have gotten more done since the last race, but the car is a little lighter, and we have made some small suspension changes. Should be fun.

http://www.sfrscca.org/component/option,com_easycalendar/task,view/id,132/Itemid,99999999/cid,22/

[markitect]

I like the hood, did you guys make it or is this a potential future product from someone.

[Jason@SportsCar]

I like the hood, did you guys make it or is this a potential future product from someone.

We modified an existing product to suit our needs. We managed to cut its weight by about 35%, and installed the AeroCatch system.

[cali yaris]

stock Yaris hood is 12.75 pounds.
Those are cool latches, did you make something to hold the pins? I couldn't get them to line up.

[Jason@SportsCar]

stock Yaris hood is 12.75 pounds.
Those are cool latches, did you make something to hold the pins? I couldn't get them to line up.

Cool, we pulled around 8lbs off the front.

I just ran a piece of flat stock from the OE hood cushion mount to where I needed the pins to end up.

I wanted to mount them the other direction (90 degrees from what you see) but you can only get 5 degrees of tilt out of them and still have the pins engage. By putting them sideways you have a lot more flexibility, and they are way easier to line up.

[Jason@SportsCar]

Just got back from another round of tune-up and tuning. Started at Toyota HQ with a "health check" for the car, trying to get rid of our CEL for the crank angle sensor. No luck. The TSB for that only applied to 07+ cars, and the reflash could not be used on our 06'. They did test the CAS and everything was good, so we will just have to live with the light if it comes on again.

Then back to the tuner for some more dyno runs. A little more tweaking to the camcon found a few more HP over what we had at Willow Springs. Hopefully that and the new clutch/flywheel combo will get us around Thunderhill quickly this weekend.

[Gideon]

So from what you've seen with the gains from the Camcon, would you recommend it as a worthwhile performance increasing mod?

I don't believe anyone has used a Camcon extensively with the Yaris so I'm curious to hear some feedback on it to see if it's a viable mod to squeeze out some more HP out of our car. :smile:

[Jason@SportsCar]

So from what you've seen with the gains from the Camcon, would you recommend it as a worthwhile performance increasing mod?

I don't believe anyone has used a Camcon extensively with the Yaris so I'm curious to hear some feedback on it to see if it's a viable mod to squeeze out some more HP out of our car. :smile:

I don't know what one cost versus some of the more complex units, but both our tuner and myself were surprised by the gains that could be had with it - it looked like ebay stuff to me, and I expected nothing out of it. While it does lack some key tuning abilities that the higher end units offer - and we will be upgrading in the next month to something more versatile - it does make power.

I will have to fire up my lap top to look at the sheets, but I seem to recall a more than 10hp and tq difference between the unit being off and on. There are not to many bolt-ons that will make that kind of power. It works. But we know there is more in the programming, power that the Camcon wont unlock.

[Gideon]

Thanks for the information. I've seen a lot of talk in regards to it with other Toyota engines, but never any sort of hard information, just butt dyno readings. :laugh:

[Jason@SportsCar]

Thanks for the information. I've seen a lot of talk in regards to it with other Toyota engines, but never any sort of hard information, just butt dyno readings. :laugh:

Checked the files, 11.1lb-ft tq and 13.2hp, on a Dynapack.

[Jason@SportsCar]

I am beat. What a long weekend and a long drive.

Thunderhill is a great track, lots of elevation changes, and really tuff off camber turns. The track was a little slow for our car, for most of the turns we were pulling out in 3rd gear just out of the power band, and shifting to fourth on the fastest straits resulted in almost no acceleration because they were uphill runs. :mad: Watching a Fiat X19 pull away from you uphill sucks. But the good part was hearing a Honda guy complain about getting beat by a Yaris. :biggrin:

Two more podium finishes, 3rd both days, out of six cars - and lucky to finish at all on Sunday, as the dreaded misfire came back. We believe the car is experiencing fuel starvation, we are generating enough grip and body roll with the slicks that at even 1/2 tank the car will cut under certain conditions. This happened three times during the weekend, and in all the cases the mis went away and car was good after about half a lap. Time to look at getting a fuel cell.

[thebarber]

are you adjusting a/f, vvt or both w/ the camcon for power #'s?

[Jason@SportsCar]

are you adjusting a/f, vvt or both w/ the camcon for power #'s?

VVT and fuel trim.

[Bluevitz-rs]

...we are generating enough grip and body roll with the slicks that at even 1/2 tank the car will cut under certain conditions. This happened three times during the weekend, and in all the cases the mis went away and car was good after about half a lap. Time to look at getting a fuel cell.

Just make sure you're monitoring oil pressure as well. I'm sure you know the same thing can happen inside the oil pan too. :wink:

[mojoyaris]

I have the same problem with fuel starvation and since the car is setup to run lean, after a good hot run, she just runs out of gas and is pooped. This only happens when I'm running the car 90/90 (90% of power bandwidth, 90% of the time).

Time for a piggy back, bigger injectors, fuel pump and Throttle body.

[Jason@SportsCar]

Video from the Saturday race: http://www.youtube.com/watch?v=Q2ELSIuIIq4

[YarisPR]

I am beat. What a long weekend and a long drive.

Thunderhill is a great track, lots of elevation changes, and really tuff off camber turns. The track was a little slow for our car, for most of the turns we were pulling out in 3rd gear just out of the power band, and shifting to fourth on the fastest straits resulted in almost no acceleration because they were uphill runs. :mad: Watching a Fiat X19 pull away from you uphill sucks. But the good part was hearing a Honda guy complain about getting beat by a Yaris. :biggrin:

Two more podium finishes, 3rd both days, out of six cars - and lucky to finish at all on Sunday, as the dreaded misfire came back. We believe the car is experiencing fuel starvation, we are generating enough grip and body roll with the slicks that at even 1/2 tank the car will cut under certain conditions. This happened three times during the weekend, and in all the cases the mis went away and car was good after about half a lap. Time to look at getting a fuel cell.

I just saw the video u posted on YT.
-When the misfire appears, does your throttle respond only if u press it lightly? :confused:
-Goes away a few seconds later? :confused:
-Does you Check engine light blink? :confused:

Sorry for asking too much but I'm having a random misfire and the car does the same buzzing sound (not too nice to hear :mad: ) when it occurs. And it happens after a long drive (1.5-2 hours) averaging 80-90mph specially when shifting from 3rd to 4th gear

[cali yaris]

Time for a piggy back, bigger injectors, fuel pump and Throttle body.

YES

[Jason@SportsCar]

Time for a piggy back, bigger injectors, fuel pump and Throttle body.

We think the issue is the tank/pickup, as we only had this problem in Turn 6.

Certainly a new fuel pump, one with a better pickup design could help, if that is in fact the issue.

But putting more demand on the fuel system with some of those other parts could make the issue worse.

Piggy back is in the works. We can not touch the throttle body. And we are looking at fuel cell options.

[YarisPR]

YES

Those would solve jason's problem, but would they work on my case?



And now that Fuel Pumps are mentioned, I got my fuel pump and hose replace because they were "deformed", the dealership took care of it, can it be that the fuel pump is damage again?

[Jason@SportsCar]

I just saw the video u posted on YT.
-When the misfire appears, does your throttle respond only if u press it lightly? :confused:
-Goes away a few seconds later? :confused:
-Does you Check engine light blink? :confused:

Sorry for asking too much but I'm having a random misfire and the car does the same buzzing sound (not too nice to hear :mad: ) when it occurs. And it happens after a long drive (1.5-2 hours) averaging 80-90mph specially when shifting from 3rd to 4th gear

Throttle position seems to be irrelevant, the engine is flat no matter the input.

It does not go away a few seconds later, takes more like a 30-60 secs depending on the severity.

CEL was flashing, but no code was stored during the Saturday occurrence. On Sunday the issue was bad enough to keep the CEL on and we pulled P0300, P0301, P0302 and P0304 - all misfire codes.

In our case this happened in Turn 6 at Thunderhill each time. Previous to T6 you are dropping down a big hill (the video does not do the elevation justice) in to a medium speed (3rd gear) right hander, then just a slight lift for the left (T6) and this is where the starvation would occur.

We think that all of the fuel is loaded to the drivers side rear of the tank previous to T6, then the lift and sudden left turn pulls all the fuel to the passengers side front of the tank, and this is enough to get the pump to suck some air even at half a tank.

[YarisPR]

We think the issue is the tank/pickup, as we only had this problem in Turn 6.

Certainly a new fuel pump, one with a better pickup design could help, if that is in fact the issue.

But putting more demand on the fuel system with some of those other parts could make the issue worse.

Piggy back is in the works. We can not touch the throttle body. And we are looking at fuel cell options.

Jason, can u confirm if what I wrote earlier happens to you? cause the syptoms are the same and u probably find the answer sooner than me :biggrin:

[Bluevitz-rs]

We had the exact same problem with a '89 Honda CRX at Mosport International Raceway in turn 5B. Only it didn't set the check engine light. It would just misfire for a second or two. And it only occurred if we had less than 1/2 tank of gas. We later had problems with oil pressure in the same corner but that set a code and VTEC shut off.

Edit:
It is possible that the ECU is going into fail safe to try and save your non existent cat because of the misfire. The CEL is flashing to warn you of imminent damage to the cat due to the misfire. I've had this happen with my Echo on the track, but I don't have TBW, so it possible the ECU is cutting back the throttle.

[Jason@SportsCar]

Jason, can u confirm if what I wrote earlier happens to you? cause the syptoms are the same and u probably find the answer sooner than me :biggrin:

I don't think we are experiencing the "same" problem. On Saturday this happened well into the race, with two laps to go, and less than a 1/4 tank of fuel. On Sunday I got on lap 3 with half a tank, and then again near the end of the race when the low fuel light was on - but always in the same turn.

[Jason@SportsCar]

We had the exact same problem with a '89 Honda CRX at Mosport International Raceway in turn 5B. Only it didn't set the check engine light. It would just misfire for a second or two. And it only occurred if we had less than 1/2 tank of gas. We later had problems with oil pressure in the same corner but that set a code and VTEC shut off.

Edit:
It is possible that the ECU is going into fail safe to try and save your non existent cat because of the misfire. The CEL is flashing to warn you of imminent damage to the cat due to the misfire. I've had this happen with my Echo on the track, but I don't have TBW, so it possible the ECU is cutting back the throttle.

The easy fix for us may be to start with more fuel. But the right thing to do would be a fuel cell.

[Bluevitz-rs]

Yeah, fuel cell FTW... literally HAHA

[cali yaris]

if you do a pump, will you do a return line?

[Jason@SportsCar]

if you do a pump, will you do a return line?

I don't think we can, we have to use the stock fuel injection - less the injectors - so I don't think we can alter the fuel rail.

All part of the challenge of find a cell that will work with our car. New racecar development is fun. :thumbsup::frown:

[largeorangefont]

Are you allowed to do a small surge tank?

[Jason@SportsCar]

Are you allowed to do a small surge tank?

Yes.

[Jason@SportsCar]

Sunday qual and race, with under car shots.

http://www.youtube.com/watch?v=yGekLZMYms8

[Jason@SportsCar]

Fingers crossed, should be getting the new engine management today... Going to make for a busy weekend. Tuesday the car goes in for the new graphics.

If anyone finds themselves at the Lakers VS Clippers game on the 14th, the Yaris will be there on display in the Toyota both. :thumbsup:

Between the graphics and ecu work there will be little time left to work on the suspension, but it should be here before our Apr 24-25 double national at Buttonwillow.

Now where are my wheels?????

[Jason@SportsCar]

My Editor has created an "unofficial" SportsCar magazine website to catalog our past projects. It currently covers a couple of our past project cars as well as some other fun projects.

In the future we will be adding more images, as well as more current cars (like the Yaris, after it prints in the magazine).

http://sportscarmag.wordpress.com/

[mojoyaris]

My car would cut out just like yours did. Alot of the other posters in the forum would give all kinds of advice but really don't think they were running their car 10/10ths.

You run your car pretty hard and the fuel starvation seems to be a natural part of the Yaris due to it's nature to run ....lean.

Hope you find out the fix for it while staying within the boundaries of your class. Good luck!

[Jason@SportsCar]

The Yaris is being wrapped right now, will be ready in the AM. Cant wait to see it. :thumbup: