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  1. #21
    Official RnS Addict mygasser's Avatar
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    if the pedal feels hard/wooden with the bigger m/cyl you might consider altering the pedal ratio to give you more leverage.
    need a job done on your project? i may be able to help.

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  3. #22
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    Might try a residual pressure valve first

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    Off the Xmas card list kapri's Avatar
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    You'll be wasting your money TRUST ME !, your m/c is too small .

    2 articles below that explain what's going on.

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  6. #24
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    Ok fair enough. It was just the principle of holding a bit of pressure in the rear brakes sounded like a possible solution. I know they are designed for low mounted masters which mine is not!
    Bigger master then..
    Ian

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    Off the Xmas card list kapri's Avatar
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    The time to know you need residual is when it's all bled and you have a good pedal . Then you don't use it for a few days and next time you gte in it the pedal i slower due to bleedback .

  8. #26
    Gym Junkie chrisvs's Avatar
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    Quote Originally Posted by Ian r hall View Post
    Ok fair enough. It was just the principle of holding a bit of pressure in the rear brakes sounded like a possible solution. I know they are designed for low mounted masters which mine is not!
    Bigger master then..
    Ian
    Personally I would look at using a dual circuit master cylinder, it may not be a lot of extra work and is a lot safer. Had a single circuit brake failure once, yanked on the handbrake, went through a hedge and ended up in a farmers turnip field, when the pedal goes to the floor it doesn't half make your heart race
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  9. #27
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    Borrowed a residual pressure valve and plumbed into rear brakes. Has helped in that after one pump I have a good brake and lock the fronts, so that's progress! However, still have a pretty crap pedal, will order a new master, is bigger better, thinking of 7/8"?
    Ian

  10. #28
    Off the Xmas card list kapri's Avatar
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    What poundage is the residual you've fitted? Should be 2l for discs

    What caliper fitted to the rear ? Hopefully I'm guessing at Granada / Sierra at 36mm bore and teh 7/8 is adequate. Any bigger bore ( or front used on rear will need and even larger m/c.

    Rear caliper bore will make the difference between needing a 7/8 or 15/16ths m/c.

    NEITHER will work worth a damn unless you fit a remote servo or add loads of pedal ratio.

    The simple fact of physics is the bigger the m/c bore the LESS the stopping power .

    This is my last post on this because you simply don't seem to want to listen . I'm NOT making it up, I have 40 years under my belt ****ing about with cars and used to sell braking components for a living for a company that invested in proper training for it's reps.
    Last edited by kapri; 14-02-2016 at 20:56.

  11. #29
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    It was a 2lb valve I tried
    The rear calipers are mk3 escort, not sure of bore size on them
    The only 7/8" master with integral reservoir I have found is a willwood one, girling ones seem to be 0.75,
    Thanks for the advice, I am listening!!
    Ian

  12. #30
    Off the Xmas card list kapri's Avatar
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    Mk 3 Escort fronts ? If so that will cause imbalance problems as they will be same size as M16 ( 54mm), need to be smaller like Mk3 Granadas at 38m bore You cam get a 7/8 and bigger in Lockheed as fitted to Landrovers same bolt pitch as Wilwood and Girling as well. Cheap as chips on ebay.

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