Results 1 to 9 of 9

Thread: 2018 Mustang Gear Ratio Change

  1. #1
    Advanced Tuner
    Join Date
    Oct 2009
    Posts
    324

    2018 Mustang Gear Ratio Change

    In a 2018 Mustang, in order to change the gear ratio, do you have to change the drop down to "Calibration" and then set the ratio to whatever it needs to be? I seem to remember having to do it that way on the '05-'09 cars.

    Thanks.

  2. #2
    Advanced Tuner
    Join Date
    Sep 2010
    Posts
    872
    s550 cars you change it from the special functions the scanner when you are connected to the vehicle but not logging, it will prompt you for rev/mile of tires(shows current value so you can just retype the current one if it hasn't changed) and then gear ratio(shows current value so you can see what is programmed stock)

  3. #3
    Advanced Tuner
    Join Date
    Oct 2009
    Posts
    324
    The only Special Functions that I have in the Scanner are Crank Relearn and KAM Reset. No gear ratio change.

  4. #4

  5. #5
    Tuner
    Join Date
    Jun 2011
    Location
    Cyprus to Worldwide
    Posts
    76
    It make no sense to buy another device, HPTuner should do it!

  6. #6
    Advanced Tuner
    Join Date
    Sep 2010
    Posts
    872
    put a ticket it in, they should be able to add it...

  7. #7
    Senior Tuner veeefour's Avatar
    Join Date
    Oct 2016
    Location
    Poland
    Posts
    1,846
    Quote Originally Posted by skythunder83 View Post
    It make no sense to buy another device, HPTuner should do it!
    But ForScan is free?

  8. #8
    +1 for forscan FREE

  9. #9
    Tuner in Training
    Join Date
    Jul 2017
    Location
    Baldwyn, MS
    Posts
    31
    yes you change it to calibration. if its an auto car, youll probably need to change the NV ratio as well so itll shift right