Here's why you need a big brake kit for road track use

[tazzz2_ca]

Hi John how you doing bud..... You may want to check out Wildwood's kit for f-bodies as I believe they have a 13" six piston front and 12" 4 piston rear slim line aluminum caliper kit that would allow you to continue running your existing wheels.... I'm running the brake kit on my 72RS and have 17" TT 2's on the car with 275 (91/2" front rim) & 315 on 11" out back ...

I could stand to be corrected here, however, I believe they said you can run this kit with stock 15" rims as well given their profile...... Anyways just some food for thought and possible consideration.

Originally Posted by NOT A TA

Those particular ones were Raybestos "heavy Duty" semi metallic. I've used 3 sets of those on the current rotors. Tried Ceramics before that which didn't even last a day at Road Atlanta.

This is a stock size setup with single piston front calipers and rear drums. Trying to haul down 4000 lbs over and over on a road track in 100 degree heat puts a tremendous amount of heat into the brakes. The rear shoes usually crack down the middle although switching to finned drums helped that a bit.

I'm going to try to finish up some brake ducting I've been working on and see if that helps. Thinking of trying Willwood and Hawk pads next (with new rotors for each) at the next couple tracks.

The simple answer is to put big 4 wheel discs on. However that would also require buying all new wheels because the brake change will push the wheels out and I'm already at the limit. So not only would I have to spend a couple grand on the brakes, then I'd also need new custom made wheels.