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Thread: IS38 tune file for 1.8L

  1. #1
    Potential Tuner
    Join Date
    Mar 2024
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    3

    IS38 tune file for 1.8L

    Hi, I am looking to swap turbo and I would need a tuning file to start my car. Does anyone have that in stock ?

  2. #2
    Advanced Tuner
    Join Date
    May 2014
    Location
    USA
    Posts
    466
    the car will run just fine on a stock tune file with the turbo swapped

    biggest limitation will be fuel-- the 1.8 hpfp does not flow very much. 2.0 hpfp/vac pump can be swapped, but hptuners doesnt have the tables needed to make that work right. However this would work OK for pump gas / light E mix setup. MPI is of course the ultimate solution.

    you'll need the "boost/wastegate logic" OS patch or you wont be able to properly tune boost. It's only on a few OSs and I don't know if it's been added for any 1.8 files.

  3. #3
    Potential Tuner
    Join Date
    Mar 2024
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    3
    I am new to this, which table or specific modification would be required for my application ? How does the patch work ?

  4. #4
    Potential Tuner
    Join Date
    Mar 2024
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    3
    Could you help me if I share my Stock file ?

  5. #5
    Advanced Tuner
    Join Date
    May 2014
    Location
    USA
    Posts
    466
    Sure, I can try