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Thread: More MPG for AFM Silverado's.

  1. #1
    Lifetime Member waterbug1999's Avatar
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    Default More MPG for AFM Silverado's.

    I have a 2007 and I want to try to improve the MPG. Has anyone had any success doing it? If so, what was changed? Thanks.

    1999 Trans Am. 10.71 @ 126 - stock bottom end-

  2. #2
    Lifetime Member GMPX's Avatar
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    Around town AFM isn't going to be the answer, is this where your complaint is?
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Lifetime Member waterbug1999's Avatar
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    Quote Originally Posted by GMPX View Post
    Around town AFM isn't going to be the answer, is this where your complaint is?
    I know around town its going to suck.

    I just remember last year I saw a thread somewhere (don't know if its was here or somewhere else) about picking up some MPG with a small trans tune. And then after reading somewhere else they were talking about changing some % and TPS % a little to have V4 stay engaged longer. I want to try it but dont know what to change and b how much.

    1999 Trans Am. 10.71 @ 126 - stock bottom end-

  4. #4
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    LEAVE THE TRUCK ALONE lol
    cosmos purple 2004 gto
    408 E85 GT47-91 ,turbo 400,9" currie straight axle,28/10.5w mt et streets



    2005 yellowjacket gto
    417 rwhp and 397 torque
    582 rwhp and 676 torque (150 shot)

  5. #5
    Lifetime Member waterbug1999's Avatar
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    Quote Originally Posted by 1meangto View Post
    LEAVE THE TRUCK ALONE lol
    neva mikey!!!


    I tweaked it and picked up 1.5-2 mpg from I can see. I might go a little more on the the AFM & TPS table and see what it does.
    Last edited by waterbug1999; June 1st, 2009 at 10:15 AM.

    1999 Trans Am. 10.71 @ 126 - stock bottom end-

  6. #6
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    thats good to no jody I'll have to try that
    cosmos purple 2004 gto
    408 E85 GT47-91 ,turbo 400,9" currie straight axle,28/10.5w mt et streets



    2005 yellowjacket gto
    417 rwhp and 397 torque
    582 rwhp and 676 torque (150 shot)

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