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Thread: Soft lockup

  1. #1
    Lifetime Member jfpilla's Avatar
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    Apr 2003
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    Default Soft lockup

    I have a 2003 C5 with a level 5 4l60e 3.90's and a PT4000. The trans builder created a lazy lock-up and said if I wanted he would firm it up. He's been around a long time and has now disappeared. I'm planning on trying the following to firm the lock-up. I'm not planning on locking under WOT, this is for street driving.

    TCC PWM min duty cycle: Raise values 20% at a time. This should firm the lock?
    TCC pressure apply rate: Raise 10% at a time. This should speed up the apply?

    Does this sound right and is it safe?
    Thanks
    Joe
    2003 red vert
    Mods:
    LS7 crate engine, wet sump, 24xx reluctor
    LPE 100mm MAF
    Vararam, cold air intake and bridge
    RPM Level 6/4L60e trans
    3.42 gears
    Yank SS3600
    1-7/8" AR headers
    Z06 exhaust
    470rwhp 437rwtq
    1/8th mi-1.526-60'-6.862-1/8th-@100.74mph

  2. #2
    Lifetime Member oztracktuning's Avatar
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    Nov 2005
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    596

    Default

    How did this go?
    Oztrack
    EFILive Tuning Consultant

    Worldwide Remote Tuning Service

    2006 NSW Super Street Drag Racing Champion

    www.oztrack.com.au


  3. #3
    Lifetime Member SSpdDmon's Avatar
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    Jun 2005
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    Default

    What do the TCC settings look like compared when compared to the stock C5 file?

  4. #4
    New Member
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    Jan 2007
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    4

    Default

    Quote Originally Posted by oztracktuning
    How did this go?
    Like Steve said, would that be the answer to tighten a slow slippy lockup?

    Thanks

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