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Who's done the master cylinder drill mod?

This is a discussion on Who's done the master cylinder drill mod? within the Manual Transmission forums, part of the Drivetrain category; Is it worth it? Should I buy a new master cylinder? my clutch has been feeling a bit mushy lately ...

  1. #1
    2nd-4th gen owner socmninja's Avatar
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    2000 Z28 M6

    Who's done the master cylinder drill mod?

    Is it worth it? Should I buy a new master cylinder? my clutch has been feeling a bit mushy lately and my gears will grind when I shift quickly as if the clutch isn't fully engaged yet. does my master cylinder need replaced?

  2. #2
    Member Corey1987's Avatar
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    Black
    1998 Z/28

    bump, i wanna know how much it helps too
    http://img519.imageshack.us/my.php?image=wheelieke5.jpg361hp 351tq 98 Z/28 A4 SLP Lid/Smooth Bellow/LM2 K&N Filter Pacesetter Headers TSP Y Pipe Z06 Style Wheels B&M shifter Yank 3200 Prothane Motor/Trans Mounts Torquer V2/7.425" p-rods/Comp Springs
    $, the replacement for displacement.

  3. #3
    Senior Member ss~zoso~ss's Avatar
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    +1

    after i do headers, this mod will probably seem really easy

  4. #4
    Senior Member ss~zoso~ss's Avatar
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    i think www.installuniversity.com has a page about it

  5. #5
    Member jimmy77611's Avatar
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    It helps with the problem of the pedal sticking to the floor under heavy accelleration, mine still does it after the drill mod. Maybe helped a little. It wasn't very easy to do, and as for bleeding the clutch afterward, i recommend cutting a hole in the trans tunnel, it's very hard to get to the bleeder screw from under the car.

  6. #6
    Junior Member 02bluebird's Avatar
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    I thought that GM put this "restrictor" in this plastic line so that women would be able to drive the car. I could be wrong but i also thought this mod would help you cram gears better. I thought that i did something wrong one night when i crammed the shit out of second and it grinded. i asked around and these guys were telling me about this and the mod you can do to eliminate it. I didn't get this info out of a book or anything but one of the guys i talk to occasionaily has over 20,000 in his car after purchase! I think he knows a little bit.

  7. #7
    Senior Member Danger731's Avatar
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    restrictor was to help the drive train.

  8. #8
    Member ProwlerZ's Avatar
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    Quote Originally Posted by 02bluebird View Post
    I thought that GM put this "restrictor" in this plastic line so that women would be able to drive the car.
    lol... that may be the most sexist thing I've heard all week.
    She's baaaaaccccck...

    '02 Z/28 M6 Hardtop

  9. #9
    Senior Member ss~zoso~ss's Avatar
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    or considerate, take it as you will

  10. #10
    Junior Member
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    2000 Berger SS #21

    I did it. Did not notice a difference.

  11. #11
    old timer blue02Z's Avatar
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    i did it and could ''feel'' the clutch better afterwards, i rec. it. it was to help save u-joints and the rear-end.

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