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how wide rear tire on 72 nova

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Old 03-06-2010, 05:20 PM
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Default how wide rear tire on 72 nova

Does anyone know how wide a tire I can run on a 1972 Nova without any mods to it?
Old 03-06-2010, 06:51 PM
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Originally Posted by crosstraining
Does anyone know how wide a tire I can run on a 1972 Nova without any mods to it?
The widest I've been able to get without major mods is a 255. I had 255/60 15 with an 8" wheel with 5 1/2" backspacing and they fit well. Now I'm running a 255/50 17 on an 8" wheel with I think 4 1/2" backspacing.
Old 03-06-2010, 07:34 PM
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Originally Posted by ls1nova71
The widest I've been able to get without major mods is a 255. I had 255/60 15 with an 8" wheel with 5 1/2" backspacing and they fit well. Now I'm running a 255/50 17 on an 8" wheel with I think 4 1/2" backspacing.
Thanks, Have you made mods to run what you've got on now? 255/60 15" would an improvment for me.
Old 03-06-2010, 08:23 PM
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Originally Posted by ls1nova71
The widest I've been able to get without major mods is a 255. I had 255/60 15 with an 8" wheel with 5 1/2" backspacing and they fit well. Now I'm running a 255/50 17 on an 8" wheel with I think 4 1/2" backspacing.
What size are you running on the front?
Old 03-06-2010, 08:33 PM
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I ran a 29x9 slick and now have a 275/60/15 drag radial....both on a 15x8 rim with a 5.5 bs. I had to hammer the inside of the wheelwell a bit but no biggie.
Old 03-06-2010, 08:44 PM
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my friend had a 295/50/15 on his, i don't know if he used spaces, what the wheel width was or if he had to hammer anything, don't even know if they rubbed, in fact, disregard almost everything i just said
Old 03-06-2010, 09:01 PM
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Originally Posted by Slow 346
I ran a 29x9 slick and now have a 275/60/15 drag radial....both on a 15x8 rim with a 5.5 bs. I had to hammer the inside of the wheelwell a bit but no biggie.
I don't mind a little hammering. I'll search your builds, but if you have any pics handy that would be cool. thanks
Old 03-06-2010, 09:02 PM
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Originally Posted by fucter
my friend had a 295/50/15 on his, i don't know if he used spaces, what the wheel width was or if he had to hammer anything, don't even know if they rubbed, in fact, disregard almost everything i just said
Dang, that was funny. I needed that today. Thanks
Old 03-06-2010, 09:04 PM
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Heres a pic of it with the 29x9 Hoosier. The 275/60 fits the car the same, just an inch shorter.
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Old 03-06-2010, 09:24 PM
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I am running 275/60-15 on 4.5bs steel wheels. The rear 1/4 wheel lip has been trimmed and rolled up.
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Old 03-08-2010, 05:22 PM
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Default Wide tires on a 72 Nova

In the June 2008 of Super Chevy magazine they put 275/40/17 Nitto 555 on a 17x9 inch rim with 5.75 inch backspacing. This was done on a 69 Nova with a CPP big brake kit and a 2 inch drop. Should fit a 72 just the same.

Then there is Detroit Speed who advertises up to a 315 width tire being possible using thier mini tubs, pn 040402.

I saw a Nova on Power Tour 2008 with this mini tub and it looked awesome!
Old 03-08-2010, 05:25 PM
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Default Wide tires on a 72 Nova

"without any mods to it?" ok, missed that at first
Old 03-08-2010, 05:52 PM
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Maybe mini tub in the future, but right now I just want to get my engine in it and actually drive it this summer. i just want as wide as possible untill then.
Old 03-08-2010, 06:35 PM
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currently on street i run a 255/60/15 and at track a 275/60/15, mini tub and 315's some day.....
Old 03-08-2010, 07:15 PM
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Originally Posted by jasonsnova
currently on street i run a 255/60/15 and at track a 275/60/15, mini tub and 315's some day.....
I think I am going to go with 255/60/15 too.
What brand are you running?
Old 03-08-2010, 07:42 PM
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I have 275/40/18 on mine and there's a finger's-width of room between the outside sidewall & outer (inner) fender, and to the best of my recollection there was still about an inch or more between the inner sidewall and framerails/leafs... I say do a 275 for SURE, maybe even a 285 or 295... I can take pics of the 275 fitment for you tonight...
Old 03-08-2010, 08:04 PM
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Originally Posted by MonteHawk
In the June 2008 of Super Chevy magazine they put 275/40/17 Nitto 555 on a 17x9 inch rim with 5.75 inch backspacing. This was done on a 69 Nova with a CPP big brake kit and a 2 inch drop. Should fit a 72 just the same.

Then there is Detroit Speed who advertises up to a 315 width tire being possible using thier mini tubs, pn 040402.

I saw a Nova on Power Tour 2008 with this mini tub and it looked awesome!
The dse kit is nice and a 315 is deffinately doable. Rubbed a tad on my buddies 72 but maybe with a different backspacing or not as lowered may have been perfectly fine...his name on here is jashell1562 id just pm him see what he has to say.
Old 03-08-2010, 08:11 PM
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I also mini-tubbed my old 69 to fit 325/50-15's. Would not do it again. Yes it would have looked sweet, but for the money..... and I mini-tubbed it myself, not the dse kit, just not worth the extra rubber.
Old 03-08-2010, 08:13 PM
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These are a 275 on an 8" rim (ideally I woulda picked up a 9.5) with an equivalent backspacing of 4.375" on a drum rear end.

A piece of 1/4" MDF barely hangs in on the outside, and there's a constant 1" clearance all around the inside. I'd say if you were confident the rear wasn't going to float side-to-side too much, go with some more backspacing and do a 295 filling up the inboard side!!

If not, could stay conservative and do a 285 with 0.25" less backspacing to bring the rim inboard a bit more.







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Old 03-08-2010, 08:16 PM
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Do the 275/60.......you will be glad you did.


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