Serious Autocrossers? - Page 2 - Toyota Yaris Forums

kngrsll · 10-13-2009, 08:54 AM

really, the last thing you need to worry about with the yaris is chassis stiffness. its a pretty damn good chassis actually. what you really want to do is improve grip, lose weight, and pick up power! i forget the exact rules of ST now, but its basically bolt ons.

grip: so grippy tires like the Toyo R1R is good at a 205/50/15 (i think 205 is the max width for ST?) there are very few shock choices available, with the Tokico Blues and HTS. The HTS has much higher valving and are adjustable. I have yet to see any data from any of the coilover companies shocks. there are very few springs available, the Teins are probably best for motorsports at 3kgF/3.5kgR. there are some sway bar options as well, front and rear through MicroImage. there are very few other parts available, so anything else will have to be creative and custom. as for alignment, crank in the front camber, toe out the front, and leave the rear alone at the minimum. The consensus around here is for the best handling, use springs, shocks, and rear sway bar but i havent followed anyones progress really so who knows how it works.

lightening: this is pretty limited as the car is already light. a light battery would probably help a ton. i havent looked into this area much, but i think its probably pretty limited in SCCA autox.

power: there are some bolt ons available, intake, header, pulleys, exhaust so on, all class legal.

now my opinion, i think the Yaris could actually be a decent ST car. you need grippy street tires, id say at least the Star Specs, but the R1R's are supposed to be better. ive even heard the new A08 is even better, but that will cost some coin. the current suspension up seems pretty tried and true, you should be fine with Blues, STechs, and a Rear bar. id try to get as much camber dialed in the front as you can, the car needs it. as for power, the mods will do a little, but dont expect a huge leap. i cant comment on the intakes, i think they would all perform about the same in general. the only header i would consider buying is the DC. i think an exhaust is a waste of money, if i wanted to do anything, id get a shop to make a straight pipe and just bolt it on when i go race to save a little weight. a pulley is nice, since its cheap, id get one. after that, we are pretty limited on class legal power mods. personally, id like to see what we can do with the camcon by power enterprises, it is used to modify vvti. may be able to pull a couple hp with it. the best thing we can really do is lighten as much as you can. i havent looked at the rules in a long time, but weight goes a long way! improves both speed and grip! id go with a light battery, lighter seats for sure. i need to look at the rules again and figure out where you can shed more weight before i can expound on that topic.

but yeah to get started: 15" light wheels, 205 grippy street tires, springs, shocks, rear sway bar should get you 90% of the way there. things like a dc header, pulley, intake, seat can all help a small amount in terms of performance. that is my personal set up and it has netted a couple 1st places in ST class at local events, but is in no way a nationals type set up. im experimenting with that now

RHDVIPbB · 10-13-2009, 09:40 AM

I have a slight bit of negative camber in the rear. I don't remember what degree, but I can pull out the sheet if I knew where it was or go to the shop that did it and pull my records.

ozmdd · 10-13-2009, 10:54 AM

Quote:

Originally Posted by kngrsll

really, the last thing you need to worry about with the yaris is chassis stiffness. its a pretty damn good chassis actually. what you really want to do is improve grip, lose weight, and pick up power! i forget the exact rules of ST now, but its basically bolt ons.

grip: so grippy tires like the Toyo R1R is good at a 205/50/15 (i think 205 is the max width for ST?) there are very few shock choices available, with the Tokico Blues and HTS. The HTS has much higher valving and are adjustable. I have yet to see any data from any of the coilover companies shocks. there are very few springs available, the Teins are probably best for motorsports at 3kgF/3.5kgR. there are some sway bar options as well, front and rear through MicroImage. there are very few other parts available, so anything else will have to be creative and custom. as for alignment, crank in the front camber, toe out the front, and leave the rear alone at the minimum. The consensus around here is for the best handling, use springs, shocks, and rear sway bar but i havent followed anyones progress really so who knows how it works.

lightening: this is pretty limited as the car is already light. a light battery would probably help a ton. i havent looked into this area much, but i think its probably pretty limited in SCCA autox.

power: there are some bolt ons available, intake, header, pulleys, exhaust so on, all class legal.

now my opinion, i think the Yaris could actually be a decent ST car. you need grippy street tires, id say at least the Star Specs, but the R1R's are supposed to be better. ive even heard the new A08 is even better, but that will cost some coin. the current suspension up seems pretty tried and true, you should be fine with Blues, STechs, and a Rear bar. id try to get as much camber dialed in the front as you can, the car needs it. as for power, the mods will do a little, but dont expect a huge leap. i cant comment on the intakes, i think they would all perform about the same in general. the only header i would consider buying is the DC. i think an exhaust is a waste of money, if i wanted to do anything, id get a shop to make a straight pipe and just bolt it on when i go race to save a little weight. a pulley is nice, since its cheap, id get one. after that, we are pretty limited on class legal power mods. personally, id like to see what we can do with the camcon by power enterprises, it is used to modify vvti. may be able to pull a couple hp with it. the best thing we can really do is lighten as much as you can. i havent looked at the rules in a long time, but weight goes a long way! improves both speed and grip! id go with a light battery, lighter seats for sure. i need to look at the rules again and figure out where you can shed more weight before i can expound on that topic.

but yeah to get started: 15" light wheels, 205 grippy street tires, springs, shocks, rear sway bar should get you 90% of the way there. things like a dc header, pulley, intake, seat can all help a small amount in terms of performance. that is my personal set up and it has netted a couple 1st places in ST class at local events, but is in no way a nationals type set up. im experimenting with that now

Thx. I'll look-into the VVTi controller, since that is a legal mod. I run 90% of the things you mentioned. I'm seat-shopping now. I run an Odyssey battery, and that's 25 lbs right there!
I'm also pretty sure that throttle controllers are legal, so I'm considering the Blitz.
Until I see a dyno chart, I'm holding-off on the headers. So far, my dyno numbers (107 whp) seem similar to people who have the header too, so not sure it does much.
Thanks for your great input!

Tamago · 10-13-2009, 11:21 AM

Quote:

Originally Posted by ozmdd

Thx. I'll look-into the VVTi controller, since that is a legal mod. I run 90% of the things you mentioned. I'm seat-shopping now. I run an Odyssey battery, and that's 25 lbs right there!
I'm also pretty sure that throttle controllers are legal, so I'm considering the Blitz.
Until I see a dyno chart, I'm holding-off on the headers. So far, my dyno numbers (107 whp) seem similar to people who have the header too, so not sure it does much.
Thanks for your great input!

skip the throttle controller. mod the driver.

Tamago · 10-13-2009, 09:44 AM

max width for ST is 245

ozmdd · 10-13-2009, 10:49 AM

Quote:

Originally Posted by Tamago

max width for ST is 245

Yes, but that's for STX and STU. ST/STS are limited to 225.

lilredrocket · 10-13-2009, 11:15 AM

For the springs what about the AOE Tigertech's they are 4k/3k. You can get them through Micro Image

TheRealEnth · 10-13-2009, 02:45 PM

not here papo, we got sun all winter ;D, if anything itll drop to 50

Tamago · 10-13-2009, 04:14 PM

MR2 >Miata

haha

ozmdd · 10-13-2009, 07:09 PM

Quote:

Originally Posted by Tamago

MR2 >Miata

haha

Depends on the driver, but often that is true. I've seen peopel drive the shit out of CRX's and beat well-prepared miatas and mr2's

justjesus · 10-14-2009, 07:55 PM

Quote:

Originally Posted by ozmdd

Depends on the driver, but often that is true. I've seen peopel drive the shit out of CRX's and beat well-prepared miatas and mr2's

Ahhh, you were there?!?! I didn't think anybody saw me. j/k. I actually got my arse handed to me in my CRX. The yaris, well, that's a different story. Well, not really. Still got my arse handed to me! LOL
.....but stay tuned...muahahahahahaha

anonymous user · 10-13-2009, 07:37 PM

Quote:

Originally Posted by Tamago

MR2 >Miata

haha

Why, b/c it's a toyota?

I plan to get one in the near future, if i can find one.

Tamago · 10-13-2009, 08:28 PM

Quote:

Originally Posted by anonymous user

Why, b/c it's a toyota?

I plan to get one in the near future, if i can find one.

1. because it's mid engined.
2. because it's lightweight and makes decent torque
3. because it's a toyota
4. because it's different. everyone and their mother (or gay father) has a miata. Mazda flooded the market while toyota capped production numbers.. when the miata is worth 500 dollars, the MR2's will still be worth 2000 .

mikenacarato · 10-13-2009, 07:39 PM

well they classed me with all of that...so im in the right class as far as im concerned. there was a day when a regional technician (i guess thats what you would call him) came to one of our events and was classing the members. He looked at everything and even noted i didnt have an airbag and put me in FSP. he did mention something about since the bars were not welded in and were removeable, i could be in this class. im not going to argue with him.

Yaris-x · 10-13-2009, 08:13 PM

I Have worked in sales at a toyota dealer for 2.5 years and the TRD Rear sway bar is able to be installed by toyota pre-dealer (Port installed) Lowering springs are only Dealer installed or I would have them too. I can produce the production codes if you don't believe me. The rule book specifically says Port installed options are the same as Factory installed options.

Tamago · 10-13-2009, 08:28 PM

Quote:

Originally Posted by Yaris-x

I Have worked in sales at a toyota dealer for 2.5 years and the TRD Rear sway bar is able to be installed by toyota pre-dealer (Port installed) Lowering springs are only Dealer installed or I would have them too. I can produce the production codes if you don't believe me. The rule book specifically says Port installed options are the same as Factory installed options.

i think you better start producing these rules from the SCCA 2009 rule book then

Tamago · 10-13-2009, 08:29 PM

Quote:

Originally Posted by mikenacarato

well they classed me with all of that...so im in the right class as far as im concerned. there was a day when a regional technician (i guess thats what you would call him) came to one of our events and was classing the members. He looked at everything and even noted i didnt have an airbag and put me in FSP. he did mention something about since the bars were not welded in and were removeable, i could be in this class. im not going to argue with him.

what's beating you in FSP ?

Yaris-x · 10-13-2009, 08:52 PM

TRD Rear sway bar Production code HR

2009 SCCA SOLO Rules
12.4 STANDARD PART
An item of standard or optional equipment that could have been
ordered with the car, installed on the factory production line, and
delivered through a dealer in the United States. Port-installed options
provided by the factory are considered to be the same as
those installed on the factory production line. Dealer-installed options
or deletions (except as required by factory directives), no matter
how common or what their origin, are not included in this definition.
This definition does not allow the updating or backdating of parts.

10-13-2009, 08:54 AM	#1
kngrsll Apexing Egg!! Drives: 07 Toyota Yaris white hatch Join Date: Oct 2006 Location: Spartanburg, SC Posts: 872	really, the last thing you need to worry about with the yaris is chassis stiffness. its a pretty damn good chassis actually. what you really want to do is improve grip, lose weight, and pick up power! i forget the exact rules of ST now, but its basically bolt ons. grip: so grippy tires like the Toyo R1R is good at a 205/50/15 (i think 205 is the max width for ST?) there are very few shock choices available, with the Tokico Blues and HTS. The HTS has much higher valving and are adjustable. I have yet to see any data from any of the coilover companies shocks. there are very few springs available, the Teins are probably best for motorsports at 3kgF/3.5kgR. there are some sway bar options as well, front and rear through MicroImage. there are very few other parts available, so anything else will have to be creative and custom. as for alignment, crank in the front camber, toe out the front, and leave the rear alone at the minimum. The consensus around here is for the best handling, use springs, shocks, and rear sway bar but i havent followed anyones progress really so who knows how it works. lightening: this is pretty limited as the car is already light. a light battery would probably help a ton. i havent looked into this area much, but i think its probably pretty limited in SCCA autox. power: there are some bolt ons available, intake, header, pulleys, exhaust so on, all class legal. now my opinion, i think the Yaris could actually be a decent ST car. you need grippy street tires, id say at least the Star Specs, but the R1R's are supposed to be better. ive even heard the new A08 is even better, but that will cost some coin. the current suspension up seems pretty tried and true, you should be fine with Blues, STechs, and a Rear bar. id try to get as much camber dialed in the front as you can, the car needs it. as for power, the mods will do a little, but dont expect a huge leap. i cant comment on the intakes, i think they would all perform about the same in general. the only header i would consider buying is the DC. i think an exhaust is a waste of money, if i wanted to do anything, id get a shop to make a straight pipe and just bolt it on when i go race to save a little weight. a pulley is nice, since its cheap, id get one. after that, we are pretty limited on class legal power mods. personally, id like to see what we can do with the camcon by power enterprises, it is used to modify vvti. may be able to pull a couple hp with it. the best thing we can really do is lighten as much as you can. i havent looked at the rules in a long time, but weight goes a long way! improves both speed and grip! id go with a light battery, lighter seats for sure. i need to look at the rules again and figure out where you can shed more weight before i can expound on that topic. but yeah to get started: 15" light wheels, 205 grippy street tires, springs, shocks, rear sway bar should get you 90% of the way there. things like a dc header, pulley, intake, seat can all help a small amount in terms of performance. that is my personal set up and it has netted a couple 1st places in ST class at local events, but is in no way a nationals type set up. im experimenting with that now __________________ HighTach Motorsports 2007 Toyota Yaris-ARGH!! Mods: Tokico HTS, 6.6 kg F, 6.1 kg R custom springs, 23 mm RSB, 2-way TRD LSD, 15x7 +25 Team Dynamic wheels, 195/55/15 Dunlop Star Specs, Cobra Suzuka S

10-13-2009, 09:40 AM	#2
RHDVIPbB Right beside you, wave Drives: 08 PBM Yaris Sedan Join Date: Oct 2008 Location: Louisville, KY Posts: 742	I have a slight bit of negative camber in the rear. I don't remember what degree, but I can pull out the sheet if I knew where it was or go to the shop that did it and pull my records. __________________ 2008 Toyota Yaris Sedan. Pacific Blue Mica. Custom vinyl eyebrows, color matched interior trim pieces, Vios lip spoiler, 17" Maas rims 2010 Scion xB 7.0 Release Series. 1535 of 2000. Murasaki. Stock with TRD springs.

10-13-2009, 11:15 AM	#7
lilredrocket Slowy getting there View User's Garage Drives: 08 Liftback Join Date: Nov 2008 Location: DFW, Texas Posts: 1,464	For the springs what about the AOE Tigertech's they are 4k/3k. You can get them through Micro Image __________________

10-13-2009, 02:45 PM	#8
TheRealEnth Beast View User's Garage Drives: 2007 Blz Blu LB Join Date: Oct 2008 Location: Miami, FL Posts: 1,365	not here papo, we got sun all winter ;D, if anything itll drop to 50 __________________ One you've taken a yaris for a spin, there's no turning back. Its a Chao!!!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
When did you experience your first mechanical failure? How serious was it?	twowheels	General Yaris / Vitz Discussion	40	08-21-2009 02:38 PM
anyone else serious about a IQ trade-in this summer	regal	General Yaris / Vitz Discussion	34	06-02-2009 11:29 PM
Pictures from Autocross at FedEx field in landover MD (autocrossers inc.)	BrazdonW	Photo-Video-Media Gallery	16	04-14-2009 12:29 PM
Obama topic SERIOUS	Bob_VT	Off-topic / Other Cars / Everything else Discussions	6	12-11-2008 04:16 PM
Yaris 2001 - serious problem	adnanmalik	General Yaris / Vitz Discussion	10	06-19-2006 08:59 AM

10-13-2009, 07:39 PM	#14
mikenacarato SIPNDEW View User's Garage Drives: 15 STI Join Date: Oct 2008 Location: Brentwood, TN Posts: 2,281	well they classed me with all of that...so im in the right class as far as im concerned. there was a day when a regional technician (i guess thats what you would call him) came to one of our events and was classing the members. He looked at everything and even noted i didnt have an airbag and put me in FSP. he did mention something about since the bars were not welded in and were removeable, i could be in this class. im not going to argue with him.

10-13-2009, 08:13 PM	#15
Yaris-x Drives: 2008 Yaris HB Join Date: Jan 2009 Location: Syracuse Posts: 101	I Have worked in sales at a toyota dealer for 2.5 years and the TRD Rear sway bar is able to be installed by toyota pre-dealer (Port installed) Lowering springs are only Dealer installed or I would have them too. I can produce the production codes if you don't believe me. The rule book specifically says Port installed options are the same as Factory installed options.

10-13-2009, 08:52 PM	#18
Yaris-x Drives: 2008 Yaris HB Join Date: Jan 2009 Location: Syracuse Posts: 101	TRD Rear sway bar Production code HR 2009 SCCA SOLO Rules 12.4 STANDARD PART An item of standard or optional equipment that could have been ordered with the car, installed on the factory production line, and delivered through a dealer in the United States. Port-installed options provided by the factory are considered to be the same as those installed on the factory production line. Dealer-installed options or deletions (except as required by factory directives), no matter how common or what their origin, are not included in this definition. This definition does not allow the updating or backdating of parts.