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Thread: Would it be ok and will this tire setup fit??

  1. #1
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    Would it be ok and will this tire setup fit??

    set of 2 for front 255/40-18 & set of 2 for rear 285/35-18 PIRELLI PZERO NERO??

    thanks again for the help

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    Yes and yes.

  3. #3
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    Thank you sir

  4. #4
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    So I bought these and this place is telling me an all wheel drive car can't have staggered tire setup and it will mess up my transfer case??? Wtf? Help!!! Is this true or is this place clueless??

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    Registered User mdegracia's Avatar
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    The rear tires are approximately 0.07in smaller in diameter than the fronts. Pretty minor, I would think the center diff could take that up.
    03 RS6 Daytona Grey - EFI Express - 01e - SRM K24 - Aquamist - 495whp/580ft-lbs

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    Registered User JSRS6's Avatar
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    Read your manual. It will tell you the difference the tires can be. It is a percentage, I don't remember offhand. But .07 is WELL within the tolerance.
    Avus RS 6, RNS-E/BT/RVC, Eurocharged/MTM, SuperSports, PSS9/Hotchkis, SS Lines/EBC Reds, FMU/BMC, Sportec vents, 007's, 9500ci, Black Optics/Headlights/Trim/Rims, CC; coming soon: stage 3 snow meth

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    Quote Originally Posted by JSRS6 View Post
    Read your manual. It will tell you the difference the tires can be. It is a percentage, I don't remember offhand. But .07 is WELL within the tolerance.

    Thanks guys. I have a manual, mine didn't come with one and they are hard to find.

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    Quote Originally Posted by mdegracia View Post
    The rear tires are approximately 0.07in smaller in diameter than the fronts. Pretty minor, I would think the center diff could take that up.
    How did you or what did you use to figure this out? Thanks a lot!

  9. #9
    Registered User mdegracia's Avatar
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    255 x 0.35 x 2 ÷ 25.4 +18 = front diameter

    Repeat for rear and compare the two values.
    03 RS6 Daytona Grey - EFI Express - 01e - SRM K24 - Aquamist - 495whp/580ft-lbs

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    I believe it's 255mm x 0.40 x 2 / 25.4 + 18 for the fronts.. That is: tire width (255) x sidewall aspect ratio (0.40, from the second number in the tire size) x 2 (two sidewalls in the total diameter) / 25.4 (to convert from mm to in) + diameter of the wheel (18") = 26.03" for the fronts. Following the same formula, the rears are 25.85". That makes for a .18" difference in diameter, or about 0.7%.
    RS6 #1, 01E, 2.5" straight pipes, AMD Stage 1 6MT tune, 460awhp/530awtq on AMD's Mustang dyno. TOTALLED.. RS6 #2, Ebony Black Pearl on black/silver combination with carbon, up and running with 6 gears and AMD tune.

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    Quote Originally Posted by mdegracia View Post
    255 x 0.35 x 2 ÷ 25.4 +18 = front diameter

    Repeat for rear and compare the two values.

    I appreciate the help. I'm a newb. Is .35 the profile? So the front is:

    255 x .40 x 2 ÷ 25.4 + 18 = 26.031496

    and rear

    285 x .35 x 2 ÷ 25.4 + 18 = 25.854330


    I could be looking at it completely wrong!!

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    So do you think this setup will be ok then?

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    Looks right to me. I would think that diameter is fine. Audi has a certain diameter variance that's acceptable for quattro cars, but I can't remember what it is..
    RS6 #1, 01E, 2.5" straight pipes, AMD Stage 1 6MT tune, 460awhp/530awtq on AMD's Mustang dyno. TOTALLED.. RS6 #2, Ebony Black Pearl on black/silver combination with carbon, up and running with 6 gears and AMD tune.

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    Ok so I'm an obvious amateur but for the 285 35 18s to fit on the rear would I need to diff wheel size? Right now I am running the default setup with 255 40 18s all around. Thanks!!

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    meh, i like my 285's on the front too
    BB GT28's w/ Tial Wastegates, Full 3" Open Exhaust, Wagners, Billet Triple Disk Converter, Built Trans, Exedy Friction Disks, ECU/TCU Tuned, 450/AEM400/1000cc/AFPR, E85, R8 Coils, Nubcake Tuned. Fastest RS6 in the USA :)

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    Quote Originally Posted by s8prtotype View Post
    meh, i like my 285's on the front too
    Lol right on. Do you have the original wheel size on those?

  17. #17
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    Nope, 19x9.5's et29

    You have to grind down the nub, but i like to live dangerously.
    BB GT28's w/ Tial Wastegates, Full 3" Open Exhaust, Wagners, Billet Triple Disk Converter, Built Trans, Exedy Friction Disks, ECU/TCU Tuned, 450/AEM400/1000cc/AFPR, E85, R8 Coils, Nubcake Tuned. Fastest RS6 in the USA :)

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