Harrison Front Brakes

[Gav]

I would definitely opt for 6 piston callipers if I had my time again.

I have AP 4 pots on the front of mine, they work really well but the pads wear quite unevenly when they are flogged to death.

IMHO 6's are a must if you are contemplating doing a bit of track work.

[sambo]

Originally Posted by Gav

I have AP 4 pots on the front of mine, they work really well but the pads wear quite unevenly when they are flogged to death.

Gav, assuming you have the CP5200 4 pots on the front with 330mm rotors, what do you have on the rear? Howard from Race Brakes seemed to think the 4 pots would be plenty on a Cobra doing track sprints and that's the way I'm heading.

Also do you have the smaller piston leading and not the other way around? I was confused initially, until I realised the "leading" piston is the rear-most one as the rotor spins when driving forward. See diagram below.

http://www.apracing.com/Drawings/cp5200_1cd.pdf

[Aussie Mike]

The leading edge of the pad takes the brunt of the punishment. The smaller piston near the leading edge means less pressure at that point and the larger at the trailing edge means more pressure there reducing the tendency for the pad to wear into a taper.