Track Whores

[jkuchta]

At California Speedway and the Streets @ Willow Springs I didn't experiance any brake fade. I'm running the Carbotech XP8 pads in the stock calipers up front, and the 917 shoes out back. I changed the fluid to ATE Superblue DOT 4. I also upgraded to slotted rotors.

These two track outings were on 500TW tires and stock suspension, and the brakes were more than up to the task of cooking off the tires after about three laps at both tracks (it's a pretty wierd feeling when the front tires start squirming around under the car while threshold braking, and getting so hot and gooey that they don't make a sound while 4-wheel drifting on corner exits)

I have a set of Rota's wrapped in RT-615's for the next track day, so we'll see how things hold up....

The tires will work the brakes a lot more, but I don't think things will get to heavy for the stock brakes.

If anyone is interested, Garm at www.microimageonline.com is the guy to go to for the Carbotech pads and shoes.

[kngrsll]

Originally Posted by jkuchta

At California Speedway and the Streets @ Willow Springs I didn't experiance any brake fade. I'm running the Carbotech XP8 pads in the stock calipers up front, and the 917 shoes out back. I changed the fluid to ATE Superblue DOT 4. I also upgraded to slotted rotors.

These two track outings were on 500TW tires and stock suspension, and the brakes were more than up to the task of cooking off the tires after about three laps at both tracks (it's a pretty wierd feeling when the front tires start squirming around under the car while threshold braking, and getting so hot and gooey that they don't make a sound while 4-wheel drifting on corner exits)

I have a set of Rota's wrapped in RT-615's for the next track day, so we'll see how things hold up....

The tires will work the brakes a lot more, but I don't think things will get to heavy for the stock brakes.

If anyone is interested, Garm at www.microimageonline.com is the guy to go to for the Carbotech pads and shoes.

woah, they have carbotechs for our car?? i have heard alot of great things about carbotechs!! they even make shoes?

yeah, it'll be interesting to see how the brake temps change with the new tires, i think your on the right track though wise, hope they hold up!! i think that they should be fine up until you go to slicks.

cool man, i cant wait to do a track day in this car!

[Loren]

Originally Posted by kngrsll

with a good high temp pad (hp+ or blue) and fluid, they should do fairly well since the car is light, but a little bit of ducting could go a long way!

loren, what kind of pads are you running now? im going to look into what other calipers may have the same part number so we can possible get another pad on the car, but i dunno what the chances of finding another are. have you done any ducting yet?

I've got some sort of Endless high-end street pad on the car. They're better than stock pads, but they do indeed have an "End"!

Yes, some brake ducting did help.

I agree, a really good track pad, high temp fluid, and some cooling ducts should be all any of us will really need.

[jkuchta]

This car is a weapon on twisty tracks with Miatas! Gut the thing and have a total blast!

[Tamago]

Originally Posted by Loren

The do the first few times...

Then they get hot and start fading. Then they get hotter and quit working altogether! Been there, done that... fortunately, they recover quickly.

5 years of racing.. i've run stock rotors (still on original rotors after 5 years) ran stock pads til 50K miles... now on project Mu pads.


never experienced brake fade




and you guys have bigger rotors and bigger calipers and bigger pads















wtf are you guys doing?

[kngrsll]

Originally Posted by Loren

I've got some sort of Endless high-end street pad on the car. They're better than stock pads, but they do indeed have an "End"!

Yes, some brake ducting did help.

I agree, a really good track pad, high temp fluid, and some cooling ducts should be all any of us will really need.

do you have pics of your ducting anywhere??

[kngrsll]

Originally Posted by Tamago

5 years of racing.. i've run stock rotors (still on original rotors after 5 years) ran stock pads til 50K miles... now on project Mu pads.

never experienced brake fade

and you guys have bigger rotors and bigger calipers and bigger pads

wtf are you guys doing?

who has bigger brakes here?

[Loren]

Don't know what to tell ya, Tamago. I got brake fade really bad at Carolina Motorsports Park, and a little less severe and less consistently at Sebring. With the brake ducting, I had no problem at Sebring. (Had a BLAST playing cat and mouse with a couple Miatas on street tires the last time I was at Sebring! One could barely keep up, the other one had me out-powered, but couldn't keep up in the turns until he got behind me for a couple laps and let me educate him... then the bastard passed me!)

On the stock pads, I used to get brake fade just doing a couple healthy autocross runs! Admittedly, I left-foot brake, which could have something to do with that.

Maybe the xA has better airflow to the brakes than the Yaris? That's really all it would take. The Yaris wheel wells appear to be pretty well blocked from airflow, quite possibly on purpose to reduce drag. It's made for economy, not performance.

[kngrsll]

Originally Posted by Loren

Don't know what to tell ya, Tamago. I got brake fade really bad at Carolina Motorsports Park, and a little less severe and less consistently at Sebring. With the brake ducting, I had no problem at Sebring. (Had a BLAST playing cat and mouse with a couple Miatas on street tires the last time I was at Sebring! One could barely keep up, the other one had me out-powered, but couldn't keep up in the turns until he got behind me for a couple laps and let me educate him... then the bastard passed me!)

On the stock pads, I used to get brake fade just doing a couple healthy autocross runs! Admittedly, I left-foot brake, which could have something to do with that.

Maybe the xA has better airflow to the brakes than the Yaris? That's really all it would take. The Yaris wheel wells appear to be pretty well blocked from airflow, quite possibly on purpose to reduce drag. It's made for economy, not performance.

Carolina Motorsports Park is notorious for being hard on brakes. Plus, your using those Endless pads, my faith in top brand JDM parts is pretty weak after my experiences.

[Loren]

Originally Posted by kngrsll

Carolina Motorsports Park is notorious for being hard on brakes. Plus, your using those Endless pads, my faith in top brand JDM parts is pretty weak after my experiences.

Yeah, I'd have never gone with Endless, but my 2008 One Lap co-driver (Jeff aka 03Z33 or whatever his handle is here) got a deal on them so that's what we ran.

To be fair, they are good street pads. Problem is that we need good RACE pads for a Yaris on a race track.

[kngrsll]

Originally Posted by Loren

Yeah, I'd have never gone with Endless, but my 2008 One Lap co-driver (Jeff aka 03Z33 or whatever his handle is here) got a deal on them so that's what we ran.

To be fair, they are good street pads. Problem is that we need good RACE pads for a Yaris on a race track.

AMEN

[Tamago]

Originally Posted by kngrsll

who has bigger brakes here?

yarii have bigger brakes than xA's

[kngrsll]

Originally Posted by Tamago

yarii have bigger brakes than xA's

really?? i would have never guessed that.

[CASTREX]

Those are some nice calipers! and price is not bad

Is anyone here actually installing these on a Yaris?

Wonder what would be required. Custom brackets?

[Tamago]

Originally Posted by kngrsll

really?? i would have never guessed that.

it's very slight

different backspacing on the rotors too

[cleong]

With four pot brakes on the front and rear, my mountain bike has better brakes that my Yaris

[eTiMaGo]

and your legs more power?

[neo1985]

is it gonna be hard to install them aftermarket caliper?? i mean do we need to custom fitting?? cuz the price is really good!! i want them bad