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Thread: Small bore master cylinder

  1. #1
    Senior Member Quiny's Avatar
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    Small bore master cylinder

    I think someone covered this before but I couldn't find it. I have a rock solid brake pedal with almost no travel. The car stops well but with significant effort. I am considering getting a 15/16 bore m/c to replace the 1-1/16 bore. That should decrease pedal effort and increase travel. Has anyone tried this already?

  2. #2
    Senior Member DodgyTim's Avatar
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    I think Junty mentioned he was looking at this

  3. #3
    Senior Member Tamra's Avatar
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    Quote Originally Posted by Quiny View Post
    I think someone covered this before but I couldn't find it. I have a rock solid brake pedal with almost no travel. The car stops well but with significant effort. I am considering getting a 15/16 bore m/c to replace the 1-1/16 bore. That should decrease pedal effort and increase travel. Has anyone tried this already?
    Are your brakes bedded in yet? Once ours were bedded in, pedal effort decreased significantly. We also have upgraded pads (EBC Yellow). Travel is a personal preference. We prefer force modulated rather than travel (mushy) modulated brakes. That doesn't mean high effort though. Otherwise, your idea should work.
    Tamra
    Building 818SR #297 picked up 10/25/14 with Andrew (xxguitarist)
    First start 12/21/14, First "drive" 1/17/15
    First Dyno at EFI Logics 3/7/15- 310whp at 15psi for break in, full spool by ~3500rpm!
    First autocross 3/29/15
    1st Registered 818 in Connecticut 7/24/2015. 9 months - 1 day from kit pickup!

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    818S - #200

    "To finish first, you must first finish"
    "If the car feels like it is on rails, you are probably driving too slow." -Ross Bentley
    "Never run out of real estate, ideas and traction at the same time."

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