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    NEW TIRES

    Just ordered the set of TOYO proxes ST to replace the original Pirelli's on my Cayenne S.
    What do you think about that?
    Also if sombody may be interested in OEM P-Zero's with 2500 miles on them, please let me know
    ikmd@usa.net

    Re: NEW TIRES

    Why did you replace the Pirelli's? What size?

    Re: NEW TIRES

    I've had 295/45R20 Toyo Proxes S/Ts (on aftermarket 10"-wide wheels) on my Turbo for about 2 years. Because I drive mine off pavement and have broken THREE of them, I'm now replacing them with Hankook Ventus ST RH06s, as these come with a factory road-hazard warranty.

    Re: NEW TIRES

    I am driving in the winther and need the all season tires. Pirelli's P-zero are summer tires.
    255/55/18

    Re: NEW TIRES

    Jeffrey did you have to change any setings on the car computer to use 295/45-20 tires?

    Re: NEW TIRES

    Didn't change a thing, but since the tires are 30-1/2" in diameter instead of the stock tires' c. 29", the speedometer is now 5.5% slow when checked with my GPS receiver. Doesn't bother me, but now when I'm being concerned about getting caught speeding, I drive (indicated) AT the limit and not over the limit.

    See pics of tires, wheels, and more here.

    Re: NEW TIRES

    Jeffrey
    On PCM settings there is an option for the tire size in navigation mode, do you know if by putting the new tire size in the PCM will correct the % on speedometer?Hawe you tried it?

    Re: NEW TIRES

    Hmm...I looked once and couldn't find it. I guess I'll look again.

    Re: NEW TIRES

    Quote:
    slawekl said:
    Jeffrey
    On PCM settings there is an option for the tire size in navigation mode, do you know if by putting the new tire size in the PCM will correct the % on speedometer?Hawe you tried it?



    I was thinking the only tire size options available on that menu are the OEM sizes. It seems to me that our Rennteam member "jdrive" may have had his dealer reprogram his Cayenne with the PIWIS to accept a larger size but it unfortunately didn't change the speed calculation.

    Re: NEW TIRES

    Jeefry
    with the kye in ignition and PCM on, press the NAV button.(NAVIGATION DISC SHOULD BE IN)them press the SET button , next, option -TIRE CHANGE -and you should see START CALIBRATION FOR NEW TIRES.

     
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