Drag radial vs. rim width - Team Camaro Tech
Wheels & Tires What fits what?

 
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post #1 of 7 (permalink) Old Apr 10th, 09, 10:29 PM Thread Starter
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James
 
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Drag radial vs. rim width

I currently have 275/60/15's on a 15x7 ralley wheels on the rear. They have been on the car for almost 15 years and have probably less thatn 10k miles on them. Well, it's time to replace them due to their age. I want to go with BFG drag radials. I'm just concerned whether it will be safe to run them on a 7" wheel. The car never sees the track (too far away). It is purely street driven. Or should I step up to an 8" wheel? I have never had a problem in 15 years, but I was just wondering if the wheel width should be addressed with the drag radial. If 8" is needed, what back spacing should I be looking at. As it is right now, the 7" fit perfectly, no rubbing. If I can pick up the 8" wheels used, is there a certain code on them that I need to look for to get the right back spacing? Any help would be much appreciated.


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post #2 of 7 (permalink) Old Apr 11th, 09, 07:30 PM
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Re: Drag radial vs. rim width

Good looking car! I love the color combo.
The drag radials are going to fit about the same as what you have now, maybe a little more of a "ballon" look to them because I think the true dimension of the drag radial section width is wider, but not much.
I have them on a 15X8, 4.5" backspace ralley and they fit great, I would personally not go smaller on the wheel, but they would work I think, the tire will probably not fit as well as it should and have more of a 'crown' to it though. I know they say 7.5"-9" wheel for that tire, but I doubt it would comprimise safety with a 7".

Sean

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post #3 of 7 (permalink) Old Apr 12th, 09, 04:26 AM
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Re: Drag radial vs. rim width

Most likely it will be fine.

I would have to ask why a drag radial if you don't race ? They will not last as long,cost more,and if you get caught in the rain they can be very scary.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #4 of 7 (permalink) Old Apr 12th, 09, 06:26 AM
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Re: Drag radial vs. rim width

With stock GM I think the 15x8 ralleys are 4" backspace so they stick out a bit far. You might want to get some aftermarket wheels.

GM Rally Wheels

XA 14X5 B-3 1/2 67 Chevy II with drum brakes
DA 14X5 B-3 7/8 67 Chevy II RALLY with disc brakes
DG 14X6 67 Camero & Chevelle with dics brakes
XB 14X6 B-4 3/8 67 Chevelle SS, 68-69 Chevelle with F-70 Tires, 70 Chevelle
XN 14X6 B-3 3/4 68-69 Camero & Nova with drum brakes. Different shaped outer
AE 14X6 B-4 3/8 70 Chevelle Station Wagon
XG 14X6 B-3 7/8 68-69 Camero with dics brakes, 68-70 Chevy II/ Nova with disc brakes, 69-69 El Camino without disc brakes. Wider drop center than normal
DE 14X6 B-4 3/8 71-72 Nova & Chevelle, 6 hole wheels
YW 14X6 B-4 3/8 Exactly like XB, may have come on same cars
YJ 14X7 B-4 3/8 69 Camero/ Chevy II L72- ZL1, 70 Nova
AV 14X7 70-72 Camero, 71-72 Nova, 6 hole wheel
XT 14X7 L72- ZL1 Non Rally Wheel
YA 14X7 B-4 3/8 69 Chevelle SS Wheel
AO 14X7 B-4 3/8 70 Camero &69 Chevelle SS Wheel
DB 15X5 67 Passenger Cars with disc brakes.
DF 15X6 B-4 1/16 67-68 Camero Z28
DC (BIG) 15X6 B-3 1/2 67 Corvette, No other stampings on rim
DC 15X6 B-3 1/2 68-70 Passenger car, 67 Passenger car (early models)
FI 15X6 B-3 1/2 68-70 Passenger car, 67 Passenger car (later models) Rivited instead of welded together
YS 15X6 B-3 1/2 68-70 El Camino
FW 15X7 B-4 1/4 71-up most any GM
AG 15X7 B-3 3/4 68 Corvette (will take 15x8 Beauty rings)
YH 15X7 B-4 1/4 L72- ZL1 Z28 Rally 69 narrow drop center
AD 15X7 B-4 1/4 L72- ZL1 Z28 Rally 68 wide drop center
AV 15X7 70, 71, 73 CAMARO Z28 5 spoke wheel
AZ 15X8 B-4 69-82 Corvette

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post #5 of 7 (permalink) Old Apr 12th, 09, 06:44 AM
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Re: Drag radial vs. rim width

Very cool list!

But why no newer (70's) stuff on it?

I always thought there was a 15 x 8 4 1/2" bs wheel used on Monte Carlo's in the 70's....





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post #6 of 7 (permalink) Old Apr 12th, 09, 08:52 AM Thread Starter
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Re: Drag radial vs. rim width

Quote:
Originally Posted by DOUG G View Post
Most likely it will be fine.

I would have to ask why a drag radial if you don't race ? They will not last as long,cost more,and if you get caught in the rain they can be very scary.
Thank you for all the replies, gentlemen. The reason for a drag radial is the car has a Gen V 502 (440hp, 515ft-lbs rating). It produces gobs of torque off idle. It doesn't take much throttle to start the tires spinning. I wanted a tire that would keep somewhat of a 'stock' look with a little more bite. I've put a whopping 10k miles (if that) in 15 years on the set that's on there now, so service length isn't really a concern. As far as rain, c'mon! It's California! J/K I don't drive the car if there is a cloud in the sky anyhow. I did once and of course it rained. Currie 9" with a Trak-Lok meant I was looking out the side windows more that the front.

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post #7 of 7 (permalink) Old Apr 12th, 09, 09:22 AM
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Re: Drag radial vs. rim width

Well with the torque of the 502 I doubt the BFG DR will be much if any better but I guess it couldn't hurt.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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