[Tom Goldman]

I've had the best results with the Wilwood polymatrex B on the rear brakes ,and Polymatrex E on the front. ...Both last about 80-100 runs neutraling and shutting off the car
My car weighs 2300# and runs mid 160's
I have a limiter valve on the front brakes to slow the initial hit mainly for tracks that dont have much spray on them since the weight bias is 54% on the rear.
There are a lot of variables involving pads, pedal ratio,pressure ,track condition & temp,weight and speed.[ and wether you want to make the car dissapear at the finish line!!]