Swap Altezza/Progres'/Brevis 2 pot rear calipers on AE86/KE70

[qagzie]

Hellos,
Just wanted to know if anyone has used 2Pot rear calipers off the Altezza/Progres/Brevis on their ae86 or Ke70.

I'm doing the famous 4 pot FC RX7 swap at the front (KE70) so I'd like to use 2 pots on the rear to make the ratio 2:1...



Any ideas?

[Sam-Q]

When you say matched you can do the same by having single pistons on the back, so long as the cross sectional area is right. It can happen that a single larger piston uses more fluid than two smaller ones.

[qagzie]

Thanks for the idea... Well, the pistons in the altezza rear 2pots are 35mm in diameter, which are really close to a 2:1 ratio with the 36mm rx7 4 pots... That's why I thought they'd be a viable option. Do you know of any single piston rear caliper with similar specs?