Is it better to have equal size pistons on 4 pot's or is it better to have 2 small pistons and 2 larger ones?

Unequal for even pad wear, but if the pads are quite short it wont make much difference.

What options have you got? What calipers are they?

Paul

Very strange calipers -- no very very bad idea the pads will wear tapered and cause a very spongey pedal


I have seen calipers with one large piston on one side facing and two small piston (ie total effective area on each side were equal) but this was a production car Girling caliper back circa 1968 fitte to the Austin 1800S, Austin 3 Kires and MK1 XJ6

[Edited on 26/7/09 by britishtrident]

i ment the front(top) 2 pistons one size and the back(bottom) 2 pistons a different size

No that won't work the unbalanced force will just try and bend the disc and mounting bracket --- hydraulic area has to be equal.

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Originally posted by britishtrident
No that won't work the unbalanced force will just try and bend the disc and mounting bracket --- hydraulic area has to be equal.

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