Brakes on my 95 M3 absolutely suck. Have run 3 quarts of fluid through the system (note: race car, no ABS, Tilton rear bias valve) and they suck. I am considering removing the brake booster and replacing the MC with a smaller unit. Since the stock one is 25mm, what suggest you for a replacment?
Last edited by bluptgm3; 04-22-2018 at 12:57 PM.
WAIT! What?
Are you putting brake fluid in, then putting more brake fluid in, then more brake fluid in?
If yes, then you are not having a master cylinder failure. The master cylinder can fail, and not a drop of fluid will be missing.
If fluid is leaving the system then it leaving through a wheel cylinder/caliper or the clutch slave cylinder -- hydraulically in the same place in the respective circuits.
If the brakes suck, you would want a larger master cylinder. Not a smaller one. More master volume=more fluid pushed=stronger braking.
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