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Clutch Master Cylinder help

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  • #1

    Clutch Master Cylinder help

    It looks like I have to replace my clutch master cylinder. This is most likely the root of my clutch problems.

    Questions is ... should I go back with an OEM master cylinder or upgrade to a Wilwood or similar? I haven't found a bolt on replacement, so I'd have to go with a universal replacement. Wilwood has a very affordable universal replacement that looks like it will work ... I just have to do some measuring and likely modification to make it mate to the pedal assembly.

    What do you guys think?

    This is the pedal side of the Evo master cylinder. Just a threaded rod with 2 nuts for adjustment.



    This is the kit that I'm looking at ... 3/4" seems to be the correct size.

    http://www.speedwaymotors.com/Wilwood-Combination-Remote-Master-Cylinder-Kit,1133.html


    The Evo master cylinder is also a 2 bolt setup, and since this is a remote reservoir kit it doesn't have to mount perfectly vertical. If the bolt holes don't line up I could likely make an adapter plate and rotate it 90º to clear and mount. It just has to fit in the space I have.
    Matt W.
    18 SM - Lancer Evolution MR
    15 MR - Volkswagen Beetle
    Sponsors: Satellite Racing - Defined Performance
    Tags: None
  • #2
    Unless the OEM part is a known problem I would go back with it.
    Darryl E.
    Blue Miata with ricer stickers.
    Wizzer Motorsports

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    • #3
      According to SPEC it is a known problem. I was told that the seals are weak and can fail with the added pressure of an upgraded PP.

      I know that the Evo X guys actually use my master cylinder as an upgrade though.

      I'm torn. I have to take the master cylinder out and replace it either way and if I can upgrade I think I should. It's going to be a pain either way honestly.
      Matt W.
      18 SM - Lancer Evolution MR
      15 MR - Volkswagen Beetle
      Sponsors: Satellite Racing - Defined Performance

      Comment

      • #4
        Is there a way to upgrade the seals for the stock one?
        Jeremiah Hodgins
        99 BMW M3
        Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car.
        Horsepower is how fast you hit the wall and torque is how far you take the wall with you.

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        • #5
          you might want to look at girling also .

          Girling Master Cylinders - Pegasus Auto Racing Supplies
          http://www.pegasusautoracing.com/group.asp?GroupID=MCGIRLING
          Compact, lightweight, and reliable Girling master cylinders have been fitted as standard equipment on many of the world's finest formula race cars. We carry only genuine Girling master cylinders.
          Ricky R
          95 240sx with LS1 power. $4500 drivetrain in a $500 car
          97 miata pretty much stock

          Comment

          • #6
            Originally posted by zukitek View Post
            you might want to look at girling also .

            http://www.pegasusautoracing.com/gro...upID=MCGIRLING
            German products on an Evo.......oh goodness.
            John Kilgore...if winning was easy, losers would do it.
            Team9Racing BMW 325i, Old Faithful (with a little evil)

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            • #7
              I think he already bought the Wilwood.
              Nick Stone

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              • #8
                Yeah, I got the Wilwood. It's not the one linked ... it's a short version but still has the remote reservoir. Got to remove the stock one to find out how I can make it work. Trying to avoid making an adapter.
                Matt W.
                18 SM - Lancer Evolution MR
                15 MR - Volkswagen Beetle
                Sponsors: Satellite Racing - Defined Performance

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