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Thread: 2014 mustang gt manual - rpm drop when in gear

  1. #1

    2014 mustang gt manual - rpm drop when in gear

    hi there

    trying to solve rpm drop when putting car in to gear. Looks like its needs more airflow. i tried to add that, worked on driver demand but that didnt change much.
    The car has k&n intake, 90mm Ford performance TB and 302 Boss intake. I have attached video, current tune and log. the car drives fine except that issue.
    i would appreciate if you drive to right direction here.
    https://youtu.be/odbvykaO5n0
    Attached Files Attached Files
    2018 mustang gt a10 with headers and e85

  2. #2
    Advanced Tuner small tuner's Avatar
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    Nov 2015
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    i will recommend stock MAF period scale with NA car and return spark and fuel torque ratio to stock
    Turbocharged COYOTE

    PM for E tune / Remote Tuning
    [email protected]

  3. #3
    i have tried maf period scale and spark in stock values, but it didnt help much. I still think i have bad electronic throttle body parameters since i have 90mm ford racing TB. One setting which helped me - throttle angle min. I have increased it to 1.2 and it helped a bit.
    2018 mustang gt a10 with headers and e85

  4. #4
    I had the same issue when modifiying a vehicle for a popcorn tune for some reason adjusting the low load spark caused the vehicle to not like holding rpm. maybe you should check your spark tables and make sure the low load range is all stock?