Big Brakes

[patrickt]

Originally Posted by pormgb

I have Sierra 4 pot calipers on the front with 1.85" and 2" pistons; I am using GM metric calipers on the rear.

I have Sierra 4 pot up front, and GM metric (PBR) in the rear. With this setup, I have two master cylinders -- a Tilton 74-875U for the front brakes and a Tilton 74-750U for the rear brakes.

[pormgb]

Originally Posted by patrickt

I have Sierra 4 pot up front, and GM metric (PBR) in the rear. With this setup, I have two master cylinders -- a Tilton 74-875U for the front brakes and a Tilton 74-750U for the rear brakes.

I see, I was wondering if I should go to a dual MC configuration. My Sierra calipers have quite large pistons and am wondering if I would be able to balance the fronts with rears with a single MC.

[D-CEL]

Pormgb,

I would say you have a big bubble in one or more of the lines somewhere in the system. I too chased pedal issues. I solved it by reverse bleeding from the calipers. I took the cap off of the M/C and kept emptying it. After a few rounds, a couple of big bubbles emerged and all was well.

I hope that helps

JASON