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Thread: ZF8 question

  1. #1
    Tuner in Training
    Join Date
    Jun 2019
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    ZF8 question

    What is meant by Turbine RPM for the ZF8?

  2. #2
    Tuner
    Join Date
    Jul 2019
    Location
    Wilmington, MA, USA
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    I think it's basically the input shaft speed for the transmission, after the torque converter.

    If the torque converter clutch is locked it will be very close to crankshaft RPM. If the clutch is unlocked it will be less than crankshaft RPM, all the way down to 0 if the car is in gear and not moving.

  3. #3
    Tuner in Training
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    Jun 2019
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    Thanks for the reply