Thread: How wide of tires can I run on my 98 GTP?

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  1. #1 How wide of tires can I run on my 98 GTP? 
    SE Level Member ajc549FF's Avatar
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    Gonna be getting new tires...gonna keep my stock 16 inch rims...how much wider can I go with the tires? I have heard bonneville guys can run 255's.
    98GTP 3.5in tips, headers, fenderwell intake, 180tstat...3.5pulley?
    1984 Four Winns (Boat) 190 Horizon 19ft open bow...new 350 soon! and Thru Hull exhaust!
    03-07 Duramax Diesel next summer after paramedic is finally over!
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  2. #2 Re: How wide of tires can I run on my 98 GTP? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    305's
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  3. #3 Re: How wide of tires can I run on my 98 GTP? 
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    on a 6.5" wheel? 225's.

    Thats it.
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  4. #4 Re: How wide of tires can I run on my 98 GTP? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Quote Originally Posted by matt5112 View Post
    on a 6.5" wheel? 225's.

    Thats it.
    Conservative.

    I run 245/50/16. - But they're a little bit fat for the rim. 235/55 is probably as wide as you should go on stock 6.5" width
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  5. #5 Re: How wide of tires can I run on my 98 GTP? 
    DUI BABY Bio248's Avatar
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    the best choice is the stock size. traction won't really be improved with any wider tires than that because of the way they end up cupping and transferring under load.
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  6. #6 Re: How wide of tires can I run on my 98 GTP? 
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    Quote Originally Posted by Nixon View Post
    Conservative.

    I run 245/50/16. - But they're a little bit fat for the rim. 235/55 is probably as wide as you should go on stock 6.5" width
    Smart.

    See below:

    Quote Originally Posted by Bio248 View Post
    the best choice is the stock size. traction won't really be improved with any wider tires than that because of the way they end up cupping and transferring under load.
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  7. #7 Re: How wide of tires can I run on my 98 GTP? 
    SE Level Member Silversurfer Gio's Avatar
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    what about a 255/45/90w on a 17 inch rim?
    2001 GTP special edition 2dr-3"downpipe,plogs,4 inch cai,dynomax exhaust,3.5 pulley,msd 8mm wires,flipped db's, gmpp front and rear sways,gxp trailing arms,gmpp stb's,kyb struts,wbs lateral arms.
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  8. #8 Re: How wide of tires can I run on my 98 GTP? 
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    what width wheel?

    what offset?

    what springs? (how low is it?)
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  9. #9 Re: How wide of tires can I run on my 98 GTP? 
    SE Level Member Silversurfer Gio's Avatar
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    stock springs, 35+mm offset 17 by 8 wheel i think
    2001 GTP special edition 2dr-3"downpipe,plogs,4 inch cai,dynomax exhaust,3.5 pulley,msd 8mm wires,flipped db's, gmpp front and rear sways,gxp trailing arms,gmpp stb's,kyb struts,wbs lateral arms.
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  10. #10 Re: How wide of tires can I run on my 98 GTP? 
    GXP Level Member boosting98's Avatar
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    I have 235/60's on my stockers.

    Fills the wheel well nicely.
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