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Thread: stroked 7L 300c weird cut issue above 200kpa

  1. #1
    Tuner
    Join Date
    Sep 2010
    Location
    Houston
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    131

    stroked 7L 300c weird cut issue above 200kpa

    Being working on this car remotely for a few days now but can not seem to find what is causing a sudden fuel cut above 200kpa , car is a 2011 300c with a forged stroked engine and a 4.5 whipple hellcat supercharger it runs drives perfect and below 200kpa I can do a full rpm sweep as soon as I increase boost and it hits 200kpa it cuts, I have attached log and calibration idk what can be causing this any pointers will be appreciated.
    Attached Files Attached Files

  2. #2
    Senior Tuner
    Join Date
    May 2016
    Posts
    1,134
    I'm not on computer to look at tune but look at Engine Diagnostic tab for max MAP settings. If what you need isn't there you might have to scale MAP so it doesn't read 200

  3. #3
    Tuner
    Join Date
    Sep 2010
    Location
    Houston
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    131
    Quote Originally Posted by ridenrunwv View Post
    I'm not on computer to look at tune but look at Engine Diagnostic tab for max MAP settings. If what you need isn't there you might have to scale MAP so it doesn't read 200
    Is set at 300kpa i try to max it out to 400 but issue remained

  4. #4
    Tuner in Training
    Join Date
    Mar 2018
    Posts
    45
    You may want to try lowering FA Incr rate and increasing your FA Decr. Also take look at the PE Aircharge table, it's locks the PE at .0167 across the entire table.