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Thread: ZF transmission transplant

  1. #1
    Join Date
    Aug 2004
    Location
    Dubai
    Posts
    834

    Default ZF transmission transplant

    I was wondering if it's possible to install a 5HP24 on the M70 E31? I guess it would get better acceleration I'm not going to think about a manual transmission anymore in Dubai .. it's pain !! also there are plenty of those auto transmission ... any idea?

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,249

    Default

    it's installed in the 840
    http://www.zf-group.com/pdf/5HP24.pdf

    I would not mess around with the tranny, too much electronics involved and the EML etc.
    Easiest to get better acceleration is another final drive.
    http://www.vinesauto.com/techinfo.htm

  3. #3
    Join Date
    Aug 2004
    Location
    Dubai
    Posts
    834

    Default

    messing with the final drive is going to mess up the mileage on the highway also will affect the smoothness, I was thinking of the tranny as it will add one more speed to accommodate the difference. isn't the EML electronics the same for both trannies? or I would need a newer DME + EML ? I already now that I would need a different tranny ECU.
    I already have the 3.64 I guess the US rear drive ratio and my top speed is already 265 @6000 RPM still I feel that lower ration 1st speed will solve the problem with a normal rear drive ratio even if I go down to 3.20 Rear drive.

    I guess that's a good project to think about to retain a nice smooth highway drive and a powerful pickup from low speed.

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