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Thread: 2005 Corvette 4l60e with 4000 Stall - Can't get it to shift properly Help

  1. #1
    Potential Tuner
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    Sep 2012
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    2005 Corvette 4l60e with 4000 Stall - Can't get it to shift properly Help

    Hey guys,

    I'm still new to the tuning world, I've been adjusting on the trans for several hours, and still have not been able to get this thing shifting properly. Can someone take a look at my tune and help me out with what I'm not doing.

    Thanks, Michael
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  2. #2
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    Sep 2012
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    So just an update, I carried the car to a local Tuner, and they experienced the same issue I have.

    The car will sift through all gears and TCC Lockup, but the Shift Speed vs TPS table has to be extremely low. When I run a log, it appears that the shift table vs the actual MPH are around 20mph off.

    The car has 3.15 gears. I have checked the Speedo settings for the Trans and all appears to be correct.

    What could be causing my shift tables to be so far off from actual shift speed? Do I need to be adjusting the sift points in a different location?

    Michael

  3. #3
    try this file and let me know if it still does it.
    Attached Files Attached Files

  4. #4
    Potential Tuner
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    Sep 2012
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    Thanks RickClarke23, I will give a run when i get back in town Friday and let you know!