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Thread: 2011 Mustang GT rpm flare between shifts

  1. #1

    2011 Mustang GT rpm flare between shifts

    Anyone have any issues with rpm flaring on the 3-4 shift with their 6r80's? Under WOT on the dragstrip we're getting a consistent 500rpm flare with an unlocked 3200 circle D converter. Car is trapping 127mph currently to give you an idea on power level. I don't think it's slipping but seems more like maybe a slow shift speed. first and second gear are doing just fine.

    Anyone have a similar issue with any tips or suggestions?

    tune attached...
    93 oct rev2.hpt
    AAHHHHH!!!!!!

  2. #2
    Tuner in Training
    Join Date
    Aug 2014
    Posts
    27
    I'd wonder about the condition of the OD clutch, which is the element that applies on a 3-4 upshift, and is the smallest clutch in the trans. I've seen clutches come out of these trans that didn't look very good but still worked reasonably well. FWIW the Exedy clutches take the OD from 6 plates to 9.