speedo corection

Discussion in 'General Discussions' started by 2wd supercrew mudder, Aug 8, 2012.

  1. Aug 8, 2012 at 8:41 PM #1
    2wd supercrew mudder

    2wd supercrew mudder Full Access Member

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    what can i do to get my speedometer to read the right speed i have a programer but its not right either im running 315/75/16 ive already got a ticket and i thought i was doing 75 cops said i was doing 88:Grenade:
     
  2. Aug 8, 2012 at 8:58 PM #2
    iowaredneck

    iowaredneck Administrator

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    programmer
     
  3. Aug 8, 2012 at 9:01 PM #3
    97madness

    97madness Full Access Member

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    He said he has a programmer. And its still off. Did you account for gear ratio aswell?
     
  4. Aug 8, 2012 at 9:10 PM #4
    2wd supercrew mudder

    2wd supercrew mudder Full Access Member

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    yes i did
     
  5. Aug 9, 2012 at 8:55 AM #5
    cowboy

    cowboy Sheriff

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    sounds like your programmer has the wrong number for the tires or the axle gears. Double check that they are correct. Then reflash the ecu, maybe the ecu didn't pick it up right.
     
  6. Aug 9, 2012 at 12:04 PM #6
    Predatory Instincts

    Predatory Instincts Bizkit Grabber

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    This.

    You need to figure in crush in your tire rev's as well and go from there. It took me forever to get mine to match a gps speed.
     

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