28inch tall tire
Registered User
Joined: Feb 2001
Posts: 3,068
From: Cincinnati, Ohio
Maybe, maybe not.
When i was running 28 inch MT streets, they fit in the wheel well, but would expand at the end of the track and rub torwards the rear end of the car.
Some people have just hit that area in with a hammer, and others have actually taken a pie wedge section out of the rear bumper, reshaping the wheel well, then fiber-glassed it back together and repainted.
When i was running 28 inch MT streets, they fit in the wheel well, but would expand at the end of the track and rub torwards the rear end of the car.
Some people have just hit that area in with a hammer, and others have actually taken a pie wedge section out of the rear bumper, reshaping the wheel well, then fiber-glassed it back together and repainted.
Administrator
Joined: Nov 1998
Posts: 71,086
From: Hell was full so they sent me to NJ
Assuming the Camaro wheel openings are similar to the Formula wheel openings, a 28" tire will just fit into them:
28" QTP
A friend of mine had 28's on his 30th SS, and they fit pretty much the same way.
With the QTP's, I found that at 125+mph trap speeds, the tire was growing enough in diameter that it was starting to hit the front edge of the opening, which is sheet metal. I moved the axle back about 1/4" to make sure if the tire hit anything, it would be the softer rubber bumper cover.
Make sure the diameter is "exactly" 28"... I just switched to 28" ET Drags and they are actually slightly larger than 28", requiring some cutting of the bumper cover.
Also remember that a 28" tire is going to have the same effect as dropping your rear axle ratio by 9+%... pretty much making a set of 3.73's act the same as 3.42's.....
28" QTP
A friend of mine had 28's on his 30th SS, and they fit pretty much the same way.
With the QTP's, I found that at 125+mph trap speeds, the tire was growing enough in diameter that it was starting to hit the front edge of the opening, which is sheet metal. I moved the axle back about 1/4" to make sure if the tire hit anything, it would be the softer rubber bumper cover.
Make sure the diameter is "exactly" 28"... I just switched to 28" ET Drags and they are actually slightly larger than 28", requiring some cutting of the bumper cover.
Also remember that a 28" tire is going to have the same effect as dropping your rear axle ratio by 9+%... pretty much making a set of 3.73's act the same as 3.42's.....
Administrator
Joined: Mar 1999
Posts: 3,664
From: Brunswick, Maine 04011
Ihad to take a hack saw to the lower outside of my rear fenders. I run 28" x 12.5" x 15" ET Streets on 10 x 15 Cragars with 6 1/2 backspace.
I had to trim the plastic and bout 1/2 inch of metal out of the way. If I trap any higher I will have to trim some more. I expected the tires to fit right up so I just went to the track and they wouldn't fit into the opening.
So I just borrowed a hacksaw and in 15 minutes I had a fix to the problem. Not pretty but plenty effective. 
I had to trim the plastic and bout 1/2 inch of metal out of the way. If I trap any higher I will have to trim some more. I expected the tires to fit right up so I just went to the track and they wouldn't fit into the opening.
So I just borrowed a hacksaw and in 15 minutes I had a fix to the problem. Not pretty but plenty effective.
Thread Starter
Registered User
Joined: Jan 2002
Posts: 936
From: Merrillville, IN
well the reason i am trying to get a 28inch tire is cause i would like to drop my rpm a bit for around town driving. Does anyone know if the bfg drag radial 275/60/15 is acctualy exatly 28" tall?? also what backspacing will i want on a 15x8 wheel?
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