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Thread: Adjusting engagement pressure with a 6F55

  1. #1
    Advanced Tuner skylinedan's Avatar
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    Sep 2019
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    Adjusting engagement pressure with a 6F55

    What I'm wondering is there a table for this that controls how hard it goes into gear ? Say from park to reverse, to drive.

  2. #2
    Tuner in Training
    Join Date
    Jan 2021
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    Hi @skylinedan I'm just wondering if you could do that with Transmission / Shift Properties / Ramp / Ramp Rate Oncoming maybe. But I'm sort of suspecting you might have to use the "Boost Pressure" options on the same page (ECM 41070), because I don't see any options for Park or Reverse, for instance.

    Anyway I don't claim any real knowledge here, I'm just poking around and trying to learn. Hopefully this helps you in some small way.

  3. #3
    Advanced Tuner skylinedan's Avatar
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    I,m thinking its Ramp rate, I,ve got my boost pressure's bumped up at the higher fluid temps. Trans really shifts the way I like, I just like more holding pressure when it's in gear the way we got the old trans to do with B n M shift kit. With my Cobb soft wear I can adjust engagement pressures going through the gears.