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Proper air pressure

This is a discussion on Proper air pressure within the LT1 forums, part of the Vehicle Specific category; Anyone know what the proper air pressure should be? My door stickers for my stock 16's but I have 275/40/17f ...

  1. #1

    Proper air pressure

    Anyone know what the proper air pressure should be? My door stickers for my stock 16's but I have 275/40/17f and 315/35/17r's now, the rubber are what came with the rims, sumitomos (never even heard of em) but the tire only says max 44psi for both. should i be like 34f/36r?

  2. #2
    Moderator Firebirdjones's Avatar
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    I'd use whats on the tire in question. If it says 44 psi. max,,,,,that is usually a cold temp reading.

    I generally run about 5 psi. under the max cold temp recommendation,,,and watch tire wear,,,then adjust accordingly.

    I generally find that I need about 2 psi. more in the front than the rear to compensate for weight.

  3. #3
    Senior Member 5.0THIS's Avatar
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    red
    95 Z28

    35 psi all around (cold) was generally what I ran with 275/40-17s. That got me fairly even tire wear.

  4. #4
    Member brianswimmer23's Avatar
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    white
    97 z28/SS

    i have 35 psi and mine too are holding great and are wearing great.

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