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Thread: Tire pressure?

              
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    Tire pressure?

    What do you fellows run in your 275x35x18"s on stock rear wheels?

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    Hello.

    Do you mean for the street? For the strip?

    Moving this to wheels/tires.

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    For the street.

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    Click here to enlarge Originally Posted by ergon Click here to enlarge
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    For the street.
    You can go over the advised amount slightly if you want better MPG. For traction in a straight line a little lower. For handling you want to keep it up.

    I'd recommend on the street just keeping it at the recommended OEM pressure.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
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    You can go over the advised amount slightly if you want better MPG. For traction in a straight line a little lower. For handling you want to keep it up.

    I'd recommend on the street just keeping it at the recommended OEM pressure.
    Will that work with the 275x35x18's.

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    Click here to enlarge Originally Posted by ergon Click here to enlarge
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    Will that work with the 275x35x18's.
    You are saying because they are wider on the stock rim?

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    Tire pressure is a kind of personal setting, within limits.
    A good guideline is the factory recommended pressure, but it is also dependent on the stiffness of the sidewall of the tire used and normal amount of passengers/weight trasported.
    My advice to you would be to find a bend/corner you dare to take on the tire's limit.
    Switch off TC, NOT ESP (This gives your car some skidplay, without the risk of ending in the barriers)
    Start with the lower mark recommended pressure, take the bend a few times to get the feel for it.
    Now lower the pressure 3 psi on all 4 tires.
    go at it again.

    Then up the pressure with 3 psi at the time until you feel the car slide more.
    For lowest fuel consumption go back to the previous pressure.
    Off course you can fine-tune with smaller increments.

    If you find this too much hassle, or don't dare to drive the car on it's limits, then for your and the car's sake stick to the recommended pressure.
    There are two theories to arguing with women. Neither one works

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    If you run to much pressure the tire will wear out in the middle, to little the edges. I'm trying to find a setting for the most contact patch. There's no need in running a wider tire if you can't get that contact patch down.

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    Click here to enlarge Originally Posted by ergon Click here to enlarge
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    If you run to much pressure the tire will wear out in the middle, to little the edges. I'm trying to find a setting for the most contact patch. There's no need in running a wider tire if you can't get that contact patch down.
    With too much pressure you will automatically feel the car sliding much more in corners, for exactly that reason.
    There are two theories to arguing with women. Neither one works

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    Click here to enlarge Originally Posted by ergon Click here to enlarge
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    Will that work with the 275x35x18's.
    For a 265/35-18 Discount recommended 40 PSI for day to day use. Hope that helps.
    Baron (my last name)
    Anesthesia Provider
    CHICAGO

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