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Thread: LT4 100 Octane Fuel Calibration

  1. 07-23-2018 #1
    Wheeler
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    Question LT4 100 Octane Fuel Calibration

    Anybody running the LT4 100 octane GM performance tune?
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  2. 07-23-2018 #2
    Higgs Boson
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    all they did was relax the IAT spark modifier, it's not a different tune.
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  3. 07-23-2018 #3
    Wheeler
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    Quote Originally Posted by Higgs Boson View Post
    all they did was relax the IAT spark modifier, it's not a different tune.
    Wow and they want $350 to purchase ?
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  4. 07-23-2018 #4
    Higgs Boson
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    Quote Originally Posted by Wheeler View Post
    Wow and they want $350 to purchase ?
    I can't comment on Chevrolet's pricing strategy. It's probably cheaper than paying a tuner to license the car plus labor plus you keep the warranty. A lot of people are concerned about that. Is what it is.
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  5. 04-03-2022 #5
    RoadRacer5000
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    Quote Originally Posted by Higgs Boson View Post
    all they did was relax the IAT spark modifier, it's not a different tune.
    Do you have details for know where I can find a copy of the tune?
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