boiled brake fluid and flat spot-ed tyres
 

I went to a informal little autocross last weekend. Since there were only a few of people, I got to run the course over and over without stopping. After half a dozen laps my brake pedal starting getting shorter and shorter. There was a straight part in the course. I got up to ~ 70, then had to brake hard to make a couple tight turns. After half a dozen laps my brake pedal starting getting shorter and shorter. As I hit the braking zone again, my ABS failed, and I locked the tires. I stopped and my brake fluid was boiling, and the pads were smoking.

I'm not sure why the ABS failed. It started working again after the brakes cooled down.

Anyhow, here's the damage cause by the heat and the wheel lockup.

I flushed the brake fluid. I had put new fluid in the day before. The fluid was bright green. Weird.
http://i84.photobucket.com/albums/k3.../100_0092R.jpg


Do the rotors look okay? There is no pulsating if I touch the brakes at speed.
http://i84.photobucket.com/albums/k3.../100_0094R.jpg

Here's a tire. You cannot tell from the photo, but they're flat spot-ed. I trimmed the chunks off the leading edges of the tread blocks. I also moved the fronts to the rear. On the way home, with the fronts still on the front, there was much vibration. Now that the fronts are on the back, there is no vibration. Will the damaged tires re-round themselves? Or, am I looking at buying some new rubber?

http://i84.photobucket.com/albums/k3.../100_0089R.jpg

Buy new tires.

The ABS probably failed because the fluid inside the controller was boiling too. No pressure from the master cylinder equals no pressure when the ABS activates. If you're using store brand brake fluid you really need to think about changing. Ford makes a "High Performance" DOT3 fluid that I would HIGHLY recommend called Ford HP (link).

I know it was an improptu autocross, but give your car a little rest next time. Also, the course design should never allow street cars to reach 70mph nor have a huge straight followed by tight features at the end of it. Those usually spell disasters when someone doesn't check up or "put both feet in" after a screwup.

Maybe a burnout will help even the tires out

yes a burnout is needed. well not to help the tires but to not make you seem like you wasted all that money on two tires. at least you got to see something cool from them.

:lol:


:stupid:

or you could give them to me:D and i will run them becouse ive never had anything but used tires on my stang
i am broke as a joke so dd tires arent my first prioritie(nor is spelling) as long as they dont blow out or leak and their the same size we are good

:spit: :rofl:

:jester:

http://www.plasmicsloth.com/gallery2/d/225-1/Word.jpg

werd to yo motha bitches:pimp::jester:

lmao....