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Thread: Raising speed limiter on 2015 gt

  1. #1
    Tuner in Training
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    Raising speed limiter on 2015 gt

    It seems as if the mph limiter will not allow the car to go past 155mph no matter what it is set to. Maybe disabling the abs for a dyno pull may be needed for now. Anyone else having this issue?

  2. #2
    HPT Employee Eric@HPTuners's Avatar
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    What RPM are you hitting at 155 MPH?
    Eric Brooks
    HP Tuners, LLC

  3. #3
    Tuner in Training
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    Quote Originally Posted by Eric@HPTuners View Post
    What RPM are you hitting at 155 MPH?
    Right past 6200.

  4. #4
    Ran into this today. Any help for us speed junkies?

  5. #5
    Advanced Tuner
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    Sep 2010
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    You are more likely hitting your output shaft speed limit, look in the transmission section, set to 16,000rpm to move it out of the way(at your own risk)

  6. #6
    Quote Originally Posted by Jn2 View Post
    You are more likely hitting your output shaft speed limit, look in the transmission section, set to 16,000rpm to move it out of the way(at your own risk)
    Where would I find that? I dont see output shaft speed in any of the options under Transmission. I have a manual. thanks

    I couldnt figure out how to paste a screen shot.

  7. #7
    Would disabling GEAR BOX LIMIT help for a manual trans car?