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Recalibrating PCM for Tires?

This is a discussion on Recalibrating PCM for Tires? within the Wheels and Tires forums, part of the General Help category; I just ordered some Z06 c6 chrome wheels. 18 x 9.5 with 57mm offset all four around. I got a ...

  1. #1
    Impwnded Smkn_TA's Avatar
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    Bright Red
    1999 Trans Am Ws6

    Recalibrating PCM for Tires?

    I just ordered some Z06 c6 chrome wheels. 18 x 9.5 with 57mm offset all four around. I got a '99 trans am ws6. So what are my options for tire sizes was hoping to go with a 260 - 275 tire. I want to know what I can go without throwing off my speedo/abs. Plus how to go about recalibrating the pcm for new tires if I go for a bigger tire.

    thanks.

  2. #2
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    did this help?
    tire size equivalents

    to recalibrate, you'll need a programmer or tuning suite to change the settings in the PCM.

  3. #3
    Crazy Canuck ! Eugenio_SS's Avatar
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    triple-black
    2000 CamaroSS convertible

    if you go w/ a 275/35-18, same exact overal diameter... no need for any calibration.
    Eugenio_SS
    almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)

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