30x10.5 radials on Stock suspension F-body?
 

Tried to do a search on here but couldn't come up with anything. I currently run 30x9 radials on a 10" rim. Car 60's like a machine and is very deadly. I'm wanting to see if a 10.5 radial will even fit under my car.

Rear suspension is a Ford 9" that's stock length under my 96 Trans AM. The 9" tire fits with plenty of room, I just don't know how much bigger the 10.5 will be. Anyone have any advice? I'm sure my car will work with the 9" tire, I was just keeping an open mind.

Thanks

Re: 30x10.5 radials on Stock suspension F-body?
 

Put 10.5 X 30 radials on my 97 Firebird when I put a super stock engine in, didn't really see any improvement in 60 ft. times. the fit with no issues.

Re: 30x10.5 radials on Stock suspension F-body?
 

Thanks for the heads up. I'm not looking for an improvement in my 60ft, just mainly a "piece of mind" thing. With the new combo in the works, the car will be making ok power, more than my current setup, as well as a good bit more TQ.

Thanks again

Re: 30x10.5 radials on Stock suspension F-body?
 

I run the 10.5s on my SS car. To get the most out of them you should put them on a 12" rim which may not work for you. It is the same concept as running the 9s on the 10" rim. Best way to get all the tire.

Re: 30x10.5 radials on Stock suspension F-body?
 

I run my 9's on a 10" rim with really good luck. My current combo will 60 1.30 on kill on small tires. I'm sure it will hook with the 9's, I was just wanting a little more bite.

Re: 30x10.5 radials on Stock suspension F-body?
 

CJ. It's only what I seen with mine but I noticed a big difference in how the tire "wore" going from 10s to 12s. I run between 17 and 20 psi. With the 10s about an inch of tire on both sides was not getting "wear". Once I went to 12" rims even wear/stickiness post run right across the tire all the way to the sidewall.
Looking back I don't think I was using anymore tire on the track with the 10.5 tires then the 9" tires when mounted on 10" rims
That's on a SS/JA car that 60s in the low 1.30s. Your results may vary of course.

Good luck!

Re: 30x10.5 radials on Stock suspension F-body?
 

Thanks! I agree the 9" radial on a 10" rim is probably the same footprint as a 10.5 on a 10" rim.

I'm going to use my 9in tires until there worn out.

Re: 30x10.5 radials on Stock suspension F-body?
 

I am considering going yo 10.5 as well. However, I have been 9.70s in my firebird with 1.24 60 ft with 9" tires. I think they can easily handle 9.50s or faster. I run 22 lbs of air.

Re: 30x10.5 radials on Stock suspension F-body?
 

C pup I ran both a couple of wks ago and the 9s where 3hun faster with the same 60 ft

Re: 30x10.5 radials on Stock suspension F-body?
 

Hahaha seems you got a little more motor than I do.

When I first started running radials, I fought traction until I learned how they work and what they like. I've never fought traction issues after I got it dialed in.

I'm sure I will have some data in the near future.