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Thread: help with 4l60e tune

  1. #1
    Tuner in Training
    Join Date
    May 2010
    Posts
    19

    Thumbs down help with 4l60e tune

    can someone look at my tune and let me know what you think? I am new to tuning and am doing my 79 malibu with a 5.3/4l60e combo, 3.73's and 24.90 diamater tires. Seems to have a shift flare on 1-2/2-3 shifts at light throttle. also the vcm was from a 4.8 which I redid the tuning to a 5.3 today and it got quite a bit better but also doesn't seem to have much difference in performance mode. help please

  2. #2
    98 Z28
    stock ls1 engine,A4,Fast 90/90,SLP lid,Ms3 112LSA,LT Headers,TCI 3500stall,semens 60 inj,ASP under drive ,3.73 gear,11.82 1/4 .sold

  3. #3
    Tuner in Training
    Join Date
    May 2010
    Posts
    19
    ok gone through about 10 different programs can someone please point me in the right direction, it's now turned to a hiccup right after 1-2 shift, you can see in the log that the rpm drops and comes back up after the shift, I know my suburban used to have this just not as bad the 'rocking chair shift' but it's been tuned by blackbear. one of you guru's please look at this tune and let me know what yu think, once again its a 01 5.3 with 4l60e from 01 2wd tahoe wih 3.73 gears and 24.9 tires thanks in advance

  4. #4
    Advanced Tuner
    Join Date
    Nov 2007
    Location
    Minnesota
    Posts
    555
    I think I'm having this same issue with my stock 08 Silverado. The 1-2 shift is pretty rough sometimes at part throttle. I'll be watching this thread.
    2012 Chevy Cruze A6 1LT RS

    Formerly - 2004 GTO, 2002 Z28, 2007 Colorado, 2008 Silverado