Porterfield R4-1 Carbon Kevlar Racing Brake Pad AP 82 R4-1

Porterfield Carbon Kevlar R4-1 Racing Brake Pad:  AP 82 R4-1 

Porterfield R4-1 Carbon Kevlar Racing Brake Pads were developed and tested in the Vintage Racing community. Because of the high coeffecient of friction (?) at low temperatures, these are fast becoming the Autocross brake pad of choice. A peak ? of .600 the R4-1 pad can reach close to ? of .500 at temperatures as low as 200?F. The R4-1 brake pads are widely used on Vintage GT and Formula car where pad temps are under 600?F and peak temps are below 1,000?F. This is also a good Rally-Cross brake pad.

Typical AP 82 R4-1 applications are BMW 2500, 2800, 2800CS, 2002Ti, 2002Tii, 3.0CS, 3.0CSi, 3.0S, 3.0Si, E12 530i and Bavaria. Ferrari 330, 365 GTB, 365 GTS, 365 GT4 BB Berlinetta Boxer, 400 GT, 400i GT, 412 GT, 512 BB Berlinetta Boxer, 288 GTO and Testarossa. Lamborghini Countach, Diablo, Jalpa and Urraco front brakes..