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Air tire pressure help!!! 275 40 zr17

This is a discussion on Air tire pressure help!!! 275 40 zr17 within the Wheels and Tires forums, part of the General Help category; I have a 2001 ws6 6speed. Slp lid .knn filter. slp maf. LT's . High flow cats . 3in Y. ...

  1. #1
    Member FirehawkM6's Avatar
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    2001 Trans Am Ws6 M6

    Air tire pressure help!!! 275 40 zr17

    I have a 2001 ws6 6speed.
    Slp lid .knn filter. slp maf. LT's . High flow cats . 3in Y. Slp catbck.
    Tb bypass.

    I have four month old riken raptors only about 800miles on them. I would
    launch hard on them when my car didn't have longtubes and tires gripped perfect.
    Now that I have longtubes they don't grip as well in first gear and just roast through first gear when trying to launch.
    What tire pressure should my tires be set at?
    Riken raptors 275 40 zr17

    car is only driven on weekends not my DD.

    Thnks in advnce

  2. #2
    Member fastt's Avatar
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    white
    2002 z28 camaro

    How much air pressure do you have in them now?

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    Senior Member Too Fast's Avatar
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    2000 WS6 6spd Hooker LT

    You have to get used to more power, and how it launches now. I set my tires to OE spec of 30, but they are not Rikens.

    Headers are a great power adder, eh? How's the sound? And what are you gonna do come emmissions testing?

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    Senior Member TLS_Addict's Avatar
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    I set mine at 33 front and 30 rear. The front is a little heavier is why.

  5. #5
    Member FirehawkM6's Avatar
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    2001 Trans Am Ws6 M6

    Rears are 36
    fronts are 34

    what should I set them at ??
    As far as performance wise

  6. #6
    Member Blue28's Avatar
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    Navy Blue
    1999 Camaro Z28

    Set them to 32psi front, and 30psi rear.

  7. #7
    Member FirehawkM6's Avatar
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    2001 Trans Am Ws6 M6

    What kind of tires are u running?

    Ima try 32front 30 rear

    how do the tires grip at that psi?

  8. #8
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    I have 245-40-ZR18 in the front and I keep them at 35. The rears I keep at either 30-32. If you run the rears @ 35, you're looking at rear tires soon as the center tread will wear more than the outer edges.

  9. #9
    Member Blue28's Avatar
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    Navy Blue
    1999 Camaro Z28

    Quote Originally Posted by FirehawkM6 View Post
    What kind of tires are u running?

    Ima try 32front 30 rear

    how do the tires grip at that psi?
    Falken 452's 275/35/18 front, and 275/40/18 rear

    My tire's grip and ride great.

    You'll definitely want to drop your rear tire pressure down from 36psi!

  10. #10
    Member FirehawkM6's Avatar
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    2001 Trans Am Ws6 M6

    Should I check my psi when the tires are hot or cold?

  11. #11
    Senior Member Too Fast's Avatar
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    2000 WS6 6spd Hooker LT

    ^^^cold. That means after the tires have not moved for 3 hours or more, or the vehicle has been driven for 1 mile or less after sitting that length of time.

    If you check your tires hot, they could have ~4 psi higher. Then someone makes an adjustment, and suddenly the tires are 4 psi low on pressure when properly checked.

  12. #12
    Member bobbyd's Avatar
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    i have those same tires in the front. run them at 32psi.

    i got 315's in the back and im running those at 30psi.

    always check them when cold

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