Rally wheel help - Team Camaro Tech
Wheels & Tires What fits what?

 
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post #1 of 7 (permalink) Old Feb 15th, 10, 12:23 PM Thread Starter
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Dan
 
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Location: schwenksville, PA, USA
Posts: 300
Question Rally wheel help

I have searched the archives. It does not look good but here is the deal. I have 15x6 wheels with 3 1/2 back space and 15X8 wheels with 4 inch back space. I really do not have the money to spend on new wheels for my 1969 and would like to make do with these. What are the widest tires I can put on these in any combination (all 15X6 or 15X6 up front and 15X8 in the back.)

1969 Camaro 350 & 1969 Impala SS 427/ 4-speed (restored)
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post #2 of 7 (permalink) Old Feb 15th, 10, 06:25 PM
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john
 
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Location: northern california
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Re: Rally wheel help

If your 15x6 rally's are coded DC (BIG) you have 15X6 67 Corvette wheels and may have a small fortune.......this may be the money you need.

Remember,I'm not making this stuff up!

1969 rs/ss 396 350hp/4spd conv a/c,pw,ps,foldown
1968 Z/28 crossram- j/l8 conv pw,ps,foldown
1963 nova ss 350/4spd conv a/c,ps,pt
1963 nova 400 4dr 6cyl/700r4 a/c
2006 GT/5spd mustang conv
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post #3 of 7 (permalink) Old Feb 15th, 10, 06:30 PM
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Steiner
 
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Re: Rally wheel help

With all 15x6 I think the widest you can get is a 225, so a 225/60R15 would work well all the way around.

If you put 15x8 in the back, a 255/60R15 would be about as wide as you could go in a common size without making the tire too tall. They make a 275/60 that'll fit an 8" rim but the tire is 28" tall.

If you're going to wind up running staggered with 6 in the back and 8 in the rear you may want to run a 215/65 or 215/70 to keep the front and rear tires close to the same height.

255/60 - 26.8"
225/60 - 25.6"
215/65 - 26.0"
215/70 - 26.9"

Here are some common sizes:
http://www.bfgoodrichtires.com/specs/radial-t-a/12.html

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
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post #4 of 7 (permalink) Old Feb 16th, 10, 05:09 PM Thread Starter
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Dan
 
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Re: Rally wheel help

Thanks Wagonman 2 of the wheels do indeed have a DC code but I do not under stand the (big) reference. The letters are no larger than the other wheels that have an XS code.

Thanks Steiner but I did some reasearch and I think the 8 inch wheels need to have a 4 1/2 backspace to fit a 255/60/15. I was wondering how wide a tire I could get with the 4" backspace. Any ideas?

1969 Camaro 350 & 1969 Impala SS 427/ 4-speed (restored)
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post #5 of 7 (permalink) Old Feb 16th, 10, 06:45 PM
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Steiner
 
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Re: Rally wheel help

I ran 235/60R15 tires on a 15x7 rim with 4.25" backspacing at all four corners with no problem. On the rear I'm now running a 17x9.5 with 5.5" backspace and a 275 tire. Based on that, I don't see why a 255 would not work on the rim you have. You could certainly stay safe with a 235 if you wish. Total section width difference between that and a 255 is less than an inch.

If it were me and I had the rim choices that you do I'd do all 225/60R15 and the same size rim so I could rotate them properly.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
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post #6 of 7 (permalink) Old Feb 18th, 10, 06:09 PM Thread Starter
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Dan
 
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Re: Rally wheel help

Thanks Steiner. The thing is from what I have read in the archives the 255 will not work with the 4" backspace. I notice you are running a much bigger backspace to get to the 275. I think with the small backspace the 255 will hit the wheel well.

I have seen 2 sets of DC coded wheels on Ebay.
http://cgi.ebay.com/ebaymotors/Set-4...0107219006r365
They do want a lot for them and they seem the same as mine but they have a date code in the pictures on Ebay and I thought the rare DC code had no date code. Anyone know? It would be great if I could unload these and get enough for the wheels I need.

1969 Camaro 350 & 1969 Impala SS 427/ 4-speed (restored)
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post #7 of 7 (permalink) Old Feb 18th, 10, 06:18 PM
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Steiner
 
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Re: Rally wheel help

But I'm running that backspace on a 9.5" rim. That means I have 4" on the outside, just like a 4" backspace on an 8" rim. Both have the same amount of rim on the front side, 4". If people are saying it will not work, then it's probably better to listen to them than me though. A 255 likely bulges on an 8" rim so the tire is the problem.

I have five FW rims with center caps and trim I'm selling locally for $200. I don't want to ship them. They are 15x7 with 4.25" backspace. This is what they look like with a 235/60R15.


'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
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