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Speedometer Calibration

Discussion in 'Performance and Tuning' started by 05TacoTRD, Feb 7, 2013.

  1. Feb 7, 2013 at 4:41 AM
    #1
    05TacoTRD

    05TacoTRD [OP] Member

    Joined:
    Aug 16, 2011
    Member:
    #61792
    Messages:
    20
    Gender:
    Male
    First Name:
    Franco
    Bradenton FL
    Vehicle:
    05 PreRunner TRD Sport
    Im about to up the size on my tires but want to make sure the speedometer stays accurate....going from the stock 265/65R17 to 285/70R17 which will make it about 7% off... will the ecm compensate for the differance like on some Ford trucks ? Or will I need to program it for that size?
     
  2. Feb 7, 2013 at 5:21 AM
    #2
    Manwithoutaplan

    Manwithoutaplan the full Monty

    Joined:
    Jan 30, 2008
    Member:
    #4500
    Messages:
    46,502
    Gender:
    Male
    CA
    Vehicle:
    07 Tacoma Speedway Blue Trd 4x4
    -Nitro 4.56 gears - Arb Front and Rear lockers. -Rear Swing out bumper Curiosity of ( Dept .94) https://www.facebook.com/Dept94 -Tinted, -ProComp 6 inch lift with Icon Coil overs and Bilstein's 7100Resi -315/70/17 - 17x8 in Pro Comp Matte black rims 4.5 bs -East Coast Gear Supply Sliders -ALL Pro EXP LEaf pack -Camburg UCA's -CAB mount CHOP
    Get the hyper tech calibrator about 200 bucks.
     
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