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Thread: Shift point change fro 6L90

  1. #1
    Junior Member 55chevdelray's Avatar
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    Default Shift point change fro 6L90

    How do you change the shift point with E38 and T43 (6L90)? I want to raise the shift point.
    Brian
    EFI Live V2
    55 Chevy with C4 Corvette Suspension
    LS376/480 (E38) and 6L90(T43)
    My Project: http://www.picturetrail.com/sfx/albu...r/55chevdelray

  2. #2
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    Open up the TCM and edit the Part throttle shift tables...you have to read the ECM and TCM separately.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
    Junior Member 55chevdelray's Avatar
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    Quote Originally Posted by ScarabEpic22 View Post
    Open up the TCM and edit the Part throttle shift tables...you have to read the ECM and TCM separately.
    I'm not wanting to adjust part throttle, just WOT. I'll look at that table, though.
    Brian
    EFI Live V2
    55 Chevy with C4 Corvette Suspension
    LS376/480 (E38) and 6L90(T43)
    My Project: http://www.picturetrail.com/sfx/albu...r/55chevdelray

  4. #4
    Junior Member 55chevdelray's Avatar
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    Quote Originally Posted by ScarabEpic22 View Post
    Open up the TCM and edit the Part throttle shift tables...you have to read the ECM and TCM separately.
    Not able to locate the Shift tables.
    Brian
    EFI Live V2
    55 Chevy with C4 Corvette Suspension
    LS376/480 (E38) and 6L90(T43)
    My Project: http://www.picturetrail.com/sfx/albu...r/55chevdelray

  5. #5
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    Quote Originally Posted by 55chevdelray View Post
    Not able to locate the Shift tables.
    Post your TCM tune up.

    Trans Calibration->Shift Control->WOT Shift Speeds and/or WOT Shift RPM. All the WOT stuff is there.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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