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  1. #1
    Join Date
    Apr 2008
    Posts
    193

    Default Master cylinder bore size.

    We are finally allowed to run aftermarket dual master cylinders this year on our street stock.The car weights around 3200 lbs, and we are on e-mods.I have disc brakes all the way around.Just wondering what size master cylinder, and brand everyone likes?Thanks alot for any advice.

  2. #2
    Join Date
    Oct 2007
    Posts
    904

    Default

    howe g3, they are a few bucks more, but they are an awesome unit, great design, well worth it, i run 1" front and rear

  3. #3
    Join Date
    Apr 2008
    Posts
    193

    Default

    Thanks for the info Bush.

  4. #4
    Join Date
    Jul 2007
    Posts
    3,223

    Default

    1" front
    7/8" rear

    In both my cars.

  5. #5

    Default master cylinders

    Why do you run the smaller bore to the rear?

  6. #6
    Join Date
    Jul 2007
    Posts
    3,223

    Default

    Quote Originally Posted by DERBYFAN View Post
    Why do you run the smaller bore to the rear?
    With the same calipers on both front and rear it gives you more rear pressure.

  7. #7
    Join Date
    Apr 2008
    Posts
    193

    Default

    Thanks for the advice Jeff.I can also run the bias bar, so would you go 7/8 front and rear, or still go 1" up front?Thanks Jeff.

  8. #8
    Join Date
    Jul 2007
    Posts
    3,223

    Default

    Quote Originally Posted by turner View Post
    Thanks for the advice Jeff.I can also run the bias bar, so would you go 7/8 front and rear, or still go 1" up front?Thanks Jeff.
    I have bias adjust bar and run mine with the smaller one in the rear.


    pm me if you need more details.

  9. #9
    Join Date
    Nov 2007
    Posts
    509

    Default

    Try them both ways.It's a what you like or need type of thing more than it needs to be a certain size on one end.

  10. #10
    Join Date
    Oct 2007
    Posts
    904

    Default

    if you have the same size calipers all the way around you should run the same size bore front and rear, let the adjuster be just that, an adjuster.....

  11. #11
    Join Date
    Apr 2008
    Posts
    193

    Default

    I really appreciate the info guys.

    Thanks alot.

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