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'will this tire fit?' thread: sidewall height edition.

This is a discussion on 'will this tire fit?' thread: sidewall height edition. within the Wheels and Tires forums, part of the General Help category; the popular setup for staggered wheels is obviously 40-r17 front and 35-r18 rear, would 40-r17 and 40 -r18 work? would ...

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    Senior Member justinmc978's Avatar
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    'will this tire fit?' thread: sidewall height edition.

    the popular setup for staggered wheels is obviously 40-r17 front and 35-r18 rear,

    would 40-r17 and 40-r18 work? would 40-r18 even fit comfortably? the object is an ever-so-slightly more aggressive stance, comments? would this reduce performance in the turns? any other ideas for reasons I shouldn't do this?

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    Smiles for 9.5 Years cammed goat's Avatar
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    40r-18 would most likely rub and, I am inclined to say, trip the ABS/TC light as the rotational mass of the rear tires will be slower than the front. I could be wrong though. But I DO know the rears will be too tall for the fenderwells. You could try to raise the rear with air shocks to clear the tires. Are said rear tires wider than the front?

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    Senior Member justinmc978's Avatar
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    Quote Originally Posted by cammed goat View Post
    Are said rear tires wider than the front?
    havent purchased anything yet, but the set of rims will likely be standard fare 9.5f/10.5r and 275 all the way around, maybe 255 in the front.

    according to a tire calculator, there is a 1.09" difference between 35r18 and 40r18 and about 33 less revs per mile.
    Last edited by justinmc978; 10-09-2011 at 07:26 PM.

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    Smiles for 9.5 Years cammed goat's Avatar
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    I have this gut feeling those 275s in 40 spec will rub.

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    Senior Member justinmc978's Avatar
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    BFH mod can't solve this problem either eh?

    according to this calculator, 275r17s are almost an inch wider than 245r17s? how is that?

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    Smiles for 9.5 Years cammed goat's Avatar
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    Probably based on the brand of tire. Some tires have tread/compound designs that are either wider/narrower than what they read on the sidewall. For instance, my rear Nittos are actually narrower than my old BFG G-Force sports. And they are 275-35-18. I held the Nittos next to the old BFGs when I had them dismounted and the BFGs were half an inch wider.

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    Senior Member tatertot91's Avatar
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    Quote Originally Posted by justinmc978 View Post
    according to this calculator, 275r17s are almost an inch wider than 245r17s? how is that?
    30mm converts to just over an inch. Like Rich said, tire brand also plays a role in how wide the tires will run

    275s will look small on that rim, it will look odd imo. Keep in mind that your speedo and odometer will be off and you risk abs issues.

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    James Bond Spikito's Avatar
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    i have factory size on the front...245/70 i think?

    and 295/35 on the back...which i think is close to the same OAD as a 275/40

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    James Bond Spikito's Avatar
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    on a 10.5 rim, and i rub a little bit....1/4" spacer fixed that

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    Senior Member justinmc978's Avatar
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    so if I went for 9.5" I'll be better off then? (at least compared to 10.5) I dont need anything wider than 275 so..

    as far as the actual sidewall diameter, I dont feel like playing around with abs, thats my big concern at this point.. guess I'll just go 17s all around, get new springs to get the stance I want

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    Senior Member 2001camaroSS's Avatar
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    Quote Originally Posted by justinmc978 View Post
    so if I went for 9.5" I'll be better off then? (at least compared to 10.5) I dont need anything wider than 275 so..

    as far as the actual sidewall diameter, I dont feel like playing around with abs, thats my big concern at this point.. guess I'll just go 17s all around, get new springs to get the stance I want
    It all really depends on the offset. I'm running 18x11 with 315s in the rear and made no modifications whatsoever (Stranos). Ran 18x10.5s with 295s and rubbed a bit (before adj. pan hard bar and with eibach prokit)
    Last edited by 2001camaroSS; 10-10-2011 at 08:44 AM.

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    Member tpilews's Avatar
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    Quote Originally Posted by justinmc978 View Post
    so if I went for 9.5" I'll be better off then? (at least compared to 10.5) I dont need anything wider than 275 so..

    as far as the actual sidewall diameter, I dont feel like playing around with abs, thats my big concern at this point.. guess I'll just go 17s all around, get new springs to get the stance I want
    I'm running 18x9.5" up front with 275/35. Running 18x10.5" with 295/35 in the rear.
    BBK Long Tube Headers, no cats, magnaflow catback, C6 Z06 wheels (18x9.5 f, 18x10.5 r)

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