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Thread: Outer CV

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  1. #1
    Join Date
    Jul 2001
    Location
    Chicago, IL
    Posts
    253

    Default

    I think so.. I was using an aftermarket cv shaft, when I compared it to a stock Golf GTI shaft (supposed to be common with the Scirocco) it was 1/2" longer!! I put in the shorter shaft and now have 5/8" plunge - DS, the PS has 3/8" and has never broken. I will be back on the track in 2 weeks and see if this was the problem. Thanks for your help. (for reference neither of the inside cv's have ever broken, only the DS outer)

  2. #2
    Join Date
    Sep 2008
    Location
    FL.
    Posts
    1,384

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    I am taking orders now for the next axle run.
    All 100mm inner, 90mm outer . Blueprinted , 200$ each warranted one year, serial #ed.
    The Chumps get 40hrs out of them between repacks.

    I can also do the 90 inners but need your old proper length cores. @ $100per , no warrentee.
    All axles include the FWDracingguide that tells how to measure the plunge and correct it.
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

  3. #3
    Join Date
    Aug 2010
    Posts
    134

    Default

    OK, my ride height is 5" but my control arms are not level; they angle up on the outside a bit. I have read that bump steer may be bad with the control arms angled, but I have also read in GRM that this set-up is fast. So, I am going to give it a shot.

    BUT, I don't want to break axles and/or CVs. Is this a real danger with the axles sitting at an angle?

    I also have my new welded diff tranny installed . . .

    TIA
    Dave Ellenwood
    ITB Jetta
    SCCA Ohio Valley Region
    [email protected]

  4. #4
    Join Date
    Nov 2001
    Location
    Wheaton, IL
    Posts
    1,893

    Default

    I have never broken an axle.
    Chris Schaafsma
    Golf 2 HProd

    AMT Racing Engines - DIYAutoTune.com

  5. #5
    Join Date
    Sep 2008
    Location
    FL.
    Posts
    1,384

    Default

    From my E book;
    For axle plunge; Unscrew the axle nut about 3/4.in or remove .
    With the car sitting on the wheels fully loaded as raced, Push the axle towards the trans.
    It should move around 3/8 in or a little more. The low spec is 1/4 in ,and the high spec is 1/2in. One side is usually more than the other.
    If you have broken one axle more than once, and the plunge value is less than the other side , move the engine across the car, increasing the broken side's value.
    Also with the new motor mount rules, I stuff the PS engine mount so that the engine can not move laterally.
    The value can be changed by, taking camber out at the strut top, adding some at the knuckle, moving the ball joint out,
    I track the axles by cleaning the drive flange very well and painting the inner flange and rubber seal. Any scuffs on the paint let me know that the axle has hit the flange.
    Grinding the end of the axle alittle back to the C clip helps. Moving the shim spacer behind the CV to the outside can help.
    Often the "dime store" axles are not the correct items. Mk 2 axles will fit the Mk 1 on the street- may work- but they are 1/4 in longer, same Mk 3/Mk 2 /Mk 1. Some may work in other cars and the parts store axle rebuilders may sell the incorrect numbers.

    RE ride height, low front seems to work just fine. Lower the rear until the axle hits the body, keep the brake line clear.

    HTH,
    MM
    Last edited by Flyinglizard; 10-06-2012 at 11:03 AM.
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

  6. #6
    Join Date
    Aug 2010
    Posts
    134

    Default

    Thanks, folks.

    DE
    Dave Ellenwood
    ITB Jetta
    SCCA Ohio Valley Region
    [email protected]

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