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Old 08-18-2018, 01:30 PM   #109
tmontague
 
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small update

After my last track session with Ron I had a new found motivation to stick with the Yaris chassis for the near future. He was posting a 1:26 in his first gen which is good enough to beat the typical "track day bro" in an STI or BRZ at TMP - our local track. My plan wasn't to beat a certain car, its always been to become as fast as a driver as I can while having fun and testing new things I modify or add to the car to make it faster. That said, being competitive at track days with cars that cost way more or people assume to be faster keeps the sessions fun and exciting. It also never gets old to pass STI's, WRX's, BRZ/FRS's etc while they look on with a dropped jaw at the Yaris going by.

I also refuse to do another track day with my Hawk HPS's - the brake fade is real and hitting corner 2 where the brakes sometimes do nothing and sometimes work half as good as they should is just stupid dangerous. I already ordered and picked up some Carbotech XP10's and I resurfaced both sets of my rotors with a rotor resurfacing tool that you install on a drill - not as good as a proper machine but worked good enough for what I need it for. I will daily in my HPS's and swap out rotors and pads the night before going to the track. I also picked up an older Sparco Sprint seat (first gen?) from Ron and am currently waiting on my seat base before I can install it in my car.

This will help me get back to my 1:30 time hopefully but on my current past worn tires I'm not holding my breath. Next season I'll have some new 100 tw rubber and I'll be aiming for a 1:27. If I'm fortunate enough to have a long tube header on my car by then, then even better as the extra 10-15whp definitely won't hurt.

The biggest limitation right now is the fact that this car is my daily and houses 1 (soon to be 2) car seats. I have a few extra hundred pounds sitting in my car waiting to be stripped out. It's looking like my family and I will be moving to a larger house a year or so from now and our next place will for sure have a garage. This will allow me to pick up a beater Yaris LB A/T. I can then keep my sedan in track mode and not have to swap out brake pads and what not every couple weeks. I can then strip it out and lose a bunch of weight in it.

Over a couple years I'd like to do a diy splitter as well as cams and a standalone ecu. I think the 2zr can realistically and conservatively achieve 150whp on pump gas and retain its reliability. This would make a pretty fast sleeper and should be able to post up consistent 1:25's at TMP.

I'll be back at the track on the 7th of September and hopefully I'll have the Sparco seat installed by then. I'll post back with how I find the brake pads.
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Old 08-19-2018, 08:08 AM   #110
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Originally Posted by tmontague View Post
...
The biggest limitation right now is the fact that this car is my daily and houses 1 (soon to be 2) car seats.
...
Whoa, whoa.. just sneak that in 'eh?! New bun in the oven? Congrats, man.

Glad to hear you're going to keep the Yaris for a bit longer. Looking forward to see what you find for upgrades for the 2ZR - Monkey Wrench Racing has goodies, but the more wild you want to go the less there seems to be for support; at least so far as I've found from the 'armchair upgrade seat', lol.

Enjoying following the progression of the car over the past while, you've been doing an awesome job with it. Makes a good go-to for motivation..

-- Adam
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Old 08-20-2018, 10:42 AM   #111
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Whoa, whoa.. just sneak that in 'eh?! New bun in the oven? Congrats, man.

Glad to hear you're going to keep the Yaris for a bit longer. Looking forward to see what you find for upgrades for the 2ZR - Monkey Wrench Racing has goodies, but the more wild you want to go the less there seems to be for support; at least so far as I've found from the 'armchair upgrade seat', lol.

Enjoying following the progression of the car over the past while, you've been doing an awesome job with it. Makes a good go-to for motivation..

-- Adam
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Old 08-20-2018, 12:40 PM   #112
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thanks guys, it's definitely an exciting time for us and so far I've been having a blast teaching my 21 month old how to wrench cars and do reno's on a house. Currently his favorite activity is going through my tool box and giving me every screwdriver I possibly own. The next one is a girl so it will be fun to see them interact with one another.

MWR has a fair amount of 2zr fun bits that I would like to use but it seems to make sense to pair it up with a standalone ecu or else the gains would be negligible (ie: cams). I have always wanted to build a motor up and the parts that MWR have would make that pretty fun. Knife edged crankshaft, stiffer valve springs to raise the rev limiter up. I am confident that with a build like that with a heightened rev limiter the 2zr could be capable of fairly easily getting >150 whp on pump gas.

The budget limits this for now but it would be a great way to build an engine and learn my way around that.

I forgot to mention in my above update that I swapped out the Cusco trans fluid for some Amsoil MTG. The Cusco had some track days on it and with clutch plates the fluid suspends the wear bits so you don't want to run it too long. I didn't go with the Cusco due to the cost of it and I have ran the Amsoil before and was happy with the price and performance. My LSD was chattering like crazy so I went out and bought some CRC lsd fiction modifier and slowly added in a couple quarts at a time. I finally found the sweet spot at around 4.5-5 ounces. keep in mind I over fill my trans a bit and I have around 300-400mls extra in there (fill it while the front is jacked up).

Amsoil also has a friction modifier but I couldn't easily obtain it and I didn't want to wait for shipping so I went with what I could fine around here. It is now fairly quiet how it originally was but still locks as it should.
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Old 08-22-2018, 01:47 AM   #113
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Originally Posted by tmontague View Post
After my last track session with Ron I had a new found motivation to stick with the Yaris chassis for the near future. He was posting a 1:26 in his first gen which is good enough to beat the typical "track day bro" in an STI or BRZ at TMP - our local track. My plan wasn't to beat a certain car, its always been to become as fast as a driver as I can while having fun and testing new things I modify or add to the car to make it faster. That said, being competitive at track days with cars that cost way more or people assume to be faster keeps the sessions fun and exciting. It also never gets old to pass STI's, WRX's, BRZ/FRS's etc while they look on with a dropped jaw at the Yaris going by.
I feel the same way, but more along the lines of trying to catch up to the autox times all the other cars are posting while I try to improve my yaris/driver skills along the way.
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Old 08-22-2018, 11:33 PM   #114
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You can do it, to both things. even under stock powered 1nz's the car will teach you how to momentum drive, and its rather easy to work on and with.
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Old 09-08-2018, 04:23 PM   #115
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2nd last track day of the season

Headed out to TMP last night and unfortunately my seat bracket had not come in yet (should be here Monday) so I was stuck using oem seats and flying around the cabin. I was able to get used to my track pads (Carbotech xp10's) for the first time and all I can say is wow. I swapped out rotors and pads the morning of and bedded them in before I left for the track - I have a dedicated set of rotors for these pads.

It's a different animal when you have track pads than street pads and it is much safer. I likely still have a second to shave off each lap just in braking but I need to build up the balls to get to that point. It's amazing how late I can brake now and how much speed scrubs off in such a short amount of time. It would fully kick in the abs after the straightaways and I'd have to manage the car from wiggling when the tires locked up.

I did about 140km's yesterday with 4 session of about 40 minutes and I never once experienced brake fade. They were always consistent and the pads didn't wear down much at all. I ended up going through 3/4 of a tank of gas which was more than usual so that says a lot for how much driving I did. I also broke the weld on my muffler and it ended up melting my rear bumper. I removed the muffler for now and the sound is awesome but much too loud to daily in.

My fastest lap was a 1:30:22 and the lap after that I was on par for 30secs faster with 1 corner to go but I caught traffic and had to slow down. I realistically would have cracked the 1:30's by a bit but after the 4th session I packed it in as I was starting to feel tired. Oddly enough this was one of the first track sessions where I was becoming faster each time out. Likely due to getting more and more comfortable with a track pads. The tires are still my largest limiter and I cannot corner nearly as fast as I should. It will be interesting next season how much time I will shave off with new rubber and faster cornering speeds.

I will be out again in 2 weeks as my wife's due date for baby #2 is coming up soon in about 4 weeks so once the baby is here it will be it for my track days this year. I will at least have one session to try out the Sparco seat, I was flying around everywhere in the tight twisty corner yesterday - especially during the few back to back corners where I now no longer hit the brakes.

I had another handful of people come up to me and ask about the car and how long I've been driving. There was a huge Subie group out in their WRX's that was really interested in the car which was pretty neat. A few of them thought my car was s/c and were surprised to hear it was an NA 2zr. In a sea of Mustangs and WRX's people apparently love seeing a Yaris rip around the corners at the limit. There is a large radius turn where people sit and watch behind a big concrete median and I noticed that many of the big V8 cars out there weren't pushing nearly as hard at the corner but instead relying on the big engines to pull them fast into the straight out of the corner. They typically cornered at about 60km/h. When I got more comfortable with the corner I was able to get up to about 78km/h with the tires screaming. People apparently loved watching that. I was also able to get the point by multiple times from a Celica GT-S (haven't seen one of those around here for years)

Like I said before, driving a slow car fast is much more rewarding than a fast car slow. I'm hoping to break the 1:30 next time out and then that will be it for me this year. Time to save up for a long tube header, new gauges and new 100tw tires.
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Old 09-09-2018, 07:57 AM   #116
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Time for a dash cam.
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Old 09-09-2018, 08:24 PM   #117
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Old 09-10-2018, 11:00 AM   #118
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Surprised you didn't get any brake fade running the factory lines. Usually the fluid heats up and the lines start to give a little, no?
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Old 09-10-2018, 02:42 PM   #119
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Zero fade even after 40 minutes of hard laps. You should never experience fading with a proper pad as long as you are in the appropriate heat ranges. I experienced fade before due to using a street pad and getting the temps well above its range.

I currently have ss front brake lines but even with OEM lines no grade should be felt with proper pads. I bleed my brakes every 3 track events so the fluid is fresh and is a mild high performance dot 3 fluid but not an expensive race fluid.

As long as you don't boil brake fluid - which is hard to do in a light car if you keep the fluid fresh - you won't experience a loss in braking.

After using these pads in an now say that upgrading to larger brakes are pointless for performance in this car. As other have stated pads are all you need. I could lock up the tires (w/ abs kicking in) when I'd hit the brakes into a sharp corner after a long straightaway. Thus was on r compounds tires as well although they are heat cycled out
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Old 09-11-2018, 12:57 PM   #120
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Quote:
Originally Posted by tmontague View Post
In a sea of Mustangs and WRX's people apparently love seeing a Yaris rip around the corners at the limit. There is a large radius turn where people sit and watch behind a big concrete median and I noticed that many of the big V8 cars out there weren't pushing nearly as hard at the corner but instead relying on the big engines to pull them fast into the straight out of the corner. They typically cornered at about 60km/h. When I got more comfortable with the corner I was able to get up to about 78km/h with the tires screaming. People apparently loved watching that. I was also able to get the point by multiple times from a Celica GT-S (haven't seen one of those around here for years)

Like I said before, driving a slow car fast is much more rewarding than a fast car slow. I'm hoping to break the 1:30 next time out and then that will be it for me this year. Time to save up for a long tube header, new gauges and new 100tw tires.
So much this.

I was at Grattan speedway on Labor day for an almost-full-course autox. Came in 4th of 6 in HS with the Echo (behind a pair of Fiesta STs and a Civic DX) but beat a full sized sedan by a second and a half. He clearly had me on the straights, but I didn't have to lift in the sweepers. Momentum cars FtW!
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Old 09-11-2018, 02:01 PM   #121
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