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Thread: 4L80e swap WOT not shifting when expected

  1. #1
    Tuner
    Join Date
    Mar 2008
    Location
    Waukesha, WI
    Posts
    94

    4L80e swap WOT not shifting when expected

    I'm hoping someone has some insight here. The truck is a TBSS with twin turbos and a 4L80e swap. Truck runs fine and shifts most of the time just fine, but the WOT 1-2 will often hit the limiter. I've set some very conservative values for WOT shifts and it still doesn't end up shifting either close to, or over, the engine limit. I've searched the forum and verified everything I can find, and I'm at a loss here. Tune and scans attached.

    version 2-2.hpt
    scan-2-1.hpl
    scan-2-2.hpl
    2007 Trailblazer SS - LS2 | S256sx + S256sx | E85 | Built 4L80-E
    1991 Olds Cutlass Supreme International Sedan - L67 | GT35R | E85 | Built 4T65-E HD | NO2

  2. #2
    Tuner
    Join Date
    Mar 2008
    Location
    Waukesha, WI
    Posts
    94
    Nobody has any idea? Most of the trans tables are set to stock, but I've got to be missing something.
    2007 Trailblazer SS - LS2 | S256sx + S256sx | E85 | Built 4L80-E
    1991 Olds Cutlass Supreme International Sedan - L67 | GT35R | E85 | Built 4T65-E HD | NO2