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Thread: Looking for a T42 4L80e cal file

  1. #1
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    Default Looking for a T42 4L80e cal file

    Does anyone have or know where I can find a cal file for a 07-11 t42, service number 24242391, for a 4L80e with a e38? I've checked the Tune File Depot.

  2. #2
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    What vehicle, Silvy HD2500 6L gas? I know there is one on here somewhere, I have it downloaded on my laptop at home. If it doesnt get posted, Ill post it again on here. I cant guarantee it will work, but it is a T42 with a GM factory 4L80E OS.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    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
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    It is gas and the tcm came from a mystery 07-11 Silverado with no calibration on it. It's actually a bit of a hybrid. The ecm is an 09 with a modified version of an 09 Corvette automatic tune. The 4L80 is a 93 with a full manual valve body that I intend to revert back to electronic, behind a camed and turboed LY6, in an 85 Corvette. Aside from needing to control the trans when its electronic again I need the tcm to send the vss signal via the LAN to the ecm. It wont work any other way. If you could post it that would be great. I'm guessing I'm going to run into some problems with this trans not having the external gear selector, but hopefully I can work somthing out.

  4. #4
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    You could always run a 60E cal and swap the wires to run the 80E. I will post the file up later today.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    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.

  5. #5
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    Thats true, I could use a 4l60 tune, but the 4l80s ISS sensor lets me know if I get any slippage in the trans, which I like in this paticular application. If you could post the file I'f really appreciate it. I still can't find one anywhere else.

  6. #6
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    All the 70Es have ISS as well...just saying.

    I cant find the file right now, I thought I had it saved simply as T42 4L80E, but I must have renamed it. Ill keep looking, now its going to bug me!
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    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.

  7. #7
    Member TuneMaster's Avatar
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    4L80_0002.tun

    Here you go.

  8. #8
    Joe (Moderator) joecar's Avatar
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    TuneMaster, thanks.

  9. #9
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    Thanks alot, I appreciate it.

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