Widest Back Tire without Mini Tub - Team Camaro Tech
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post #1 of 20 (permalink) Old Dec 7th, 08, 12:05 PM Thread Starter
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Cool Widest Back Tire without Mini Tub

what is the widest tire I can fit on the back of my camaro, without mini tubing? I have all stock quarters with no flaring and 12 bolt rear with factory drums.

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post #2 of 20 (permalink) Old Dec 7th, 08, 12:32 PM
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Re: Widest Back Tire without Mini Tub

Most of your answer is here https://www.camaros.net/forums/showthread.php?t=146928
It depends on what you want to do to get it to fit and how you car has weathered the last almost 40 years. The biggest combination I have seen is 295s on 10s BUT to get them to fit the 1/4 panel lip has to go. On the Foose Camaros they split the lip at the corner of the wheel opening front and rear and rolled the lip up until it was against the inside of the 1/4 panel. Besides that I think they also massaged the inside of the wheel house next to where the top of the tire would be. Other people have used a grinder to trim away most of the top of the lip on the 1/4 panel. If you don't want to force something to fit about the biggest that should work with little to no drama is a 275 on a 9.5 with 5.5 backspace. Sometimes even that combination will rub. I know that sounds like a cop out answer but we get back to all these cars are a little different and time and wear has not been as kind to all of them. Try to test fit something that is close or at the very least measure very carefully BOTH sides.

Jack
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post #3 of 20 (permalink) Old Dec 7th, 08, 02:32 PM
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Re: Widest Back Tire without Mini Tub

Actually that about covers it. Safely 275's with some work 295's or maybe 305's (but modifications have to be made)


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post #4 of 20 (permalink) Old Dec 7th, 08, 02:42 PM
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Re: Widest Back Tire without Mini Tub

You might also want to measure and see how your body is sitting on the rear frame. On mine it was almost 1/4-1/2 difference between sides. This will affect how much tire you can squeeze in as well.

Ed

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post #5 of 20 (permalink) Old Dec 8th, 08, 06:24 AM
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Re: Widest Back Tire without Mini Tub

I have 315/35/17 on mine with 17x9.5 and they don't rub or anything....fit great
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post #6 of 20 (permalink) Old Dec 8th, 08, 10:23 AM
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Re: Widest Back Tire without Mini Tub

Quote:
Originally Posted by tumper View Post
I have 315/35/17 on mine with 17x9.5 and they don't rub or anything....fit great
Wow, your car is nice. What is the BS on those wheels?

Scott from NJ. Stay thirsty, my friends


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post #7 of 20 (permalink) Old Dec 8th, 08, 12:02 PM
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Re: Widest Back Tire without Mini Tub

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Originally Posted by BonzoHansen View Post
Wow, your car is nice. What is the BS on those wheels?
I would have to check but the best I can remember it was 5.5"
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post #8 of 20 (permalink) Old Dec 8th, 08, 12:26 PM
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Re: Widest Back Tire without Mini Tub

Such a bland question....ride height has as much to do with it as anything. You can run 345's with air shocks(Wise Crack) or if you want it tucked up in the wheel well then that's a different story.
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post #9 of 20 (permalink) Old Dec 8th, 08, 12:42 PM
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Re: Widest Back Tire without Mini Tub

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Originally Posted by Vegas69 View Post
Such a bland question....ride height has as much to do with it as anything. You can run 345's with air shocks(Wise Crack) or if you want it tucked up in the wheel well then that's a different story.
That is true, I don't see how 315s would fit in the stock wheel wells unless the rear of car is sitting in the air.

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post #10 of 20 (permalink) Old Dec 8th, 08, 03:52 PM
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Re: Widest Back Tire without Mini Tub

Depends on what brand tires and the size of the rim to how they fit. The Sumitomo 315's really measure closer to 295's compared to Goodyear 315's. In that situation I could see them fitting.

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post #11 of 20 (permalink) Old Dec 8th, 08, 04:22 PM
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Re: Widest Back Tire without Mini Tub

For the strip, here's my MT's. They are 26X11.5x16". They fit with no problems. Even clear the 3" exhaust. Sure, the lip is trimmed and the fenders are massaged a little, but it's a hotrod. And the next slicks are gonna be on 15" rims. Yep, messed up. But these are producing 1.65 60's.

One owner 69 Camaro,(yep, bought it new
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post #12 of 20 (permalink) Old Dec 8th, 08, 05:04 PM
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Re: Widest Back Tire without Mini Tub

Quote:
Originally Posted by tumper View Post
I have 315/35/17 on mine with 17x9.5 and they don't rub or anything....fit great
Can you give some details? Do you have factory 1/4s? What's the ride height? Would you be able to post a picture taken from a similar angle as Fred Ficarra? I have an all original sheet metal '69 and I can't get the 275s on 9.5s to work.

Jack
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post #13 of 20 (permalink) Old Dec 8th, 08, 09:46 PM
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Re: Widest Back Tire without Mini Tub

Quote:
Originally Posted by Jeff H View Post
Depends on what brand tires and the size of the rim to how they fit. The Sumitomo 315's really measure closer to 295's compared to Goodyear 315's. In that situation I could see them fitting.

Nitto 555R's are the same way...

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post #14 of 20 (permalink) Old Dec 9th, 08, 01:00 PM
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Re: Widest Back Tire without Mini Tub

The tires are Sumitomo 315's. The car is on jack stands right now so the only pictures I have of it are older ones from in the summer. The car is not "jacked up". It is riding on Hotchkis lowering springs front and rear with their matched shocks! Nothing was done to the fender lips to make them fit either, they are not the originals but are Goodmarks that I didn't alter at all. The rearend is the has not been shortened but is out of a '69 which makes no difference.
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post #15 of 20 (permalink) Old Dec 9th, 08, 02:07 PM
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Re: Widest Back Tire without Mini Tub

I have 285/40/18 and my next set will be 275/40/18 the 285 rub the inner wheel well when you go up a big off camber curb drive way. Rims are 9.5x18 with 5.5 back space.

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