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

CJ Perry · 08-16-2013, 02:48 PM

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

Lee Valentine · 08-16-2013, 05:12 PM

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.

CJ Perry · 08-16-2013, 05:49 PM

Quote:

Originally Posted by Lee Valentine

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.

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

Mark Howes · 08-16-2013, 06:09 PM

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.

CJ Perry · 08-16-2013, 06:28 PM

Quote:

Originally Posted by Mark Howes

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.

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.

Mark Howes · 08-16-2013, 06:53 PM

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!

08-16-2013, 02:48 PM	#1
CJ Perry Member Join Date: Mar 2010 Location: Sanford, NC Posts: 127 Likes: 0 Liked 0 Times in 0 Posts	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 __________________ CJ Perry 9931 PCA-1

08-16-2013, 05:12 PM	#2
Lee Valentine Senior Member Join Date: May 2004 Location: Brookfield, CT Posts: 708 Likes: 13 Liked 319 Times in 68 Posts	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. __________________ Lee Valentine 1661 STK

08-16-2013, 06:09 PM	#4
Mark Howes Member Join Date: Nov 2001 Location: Saint John, NB Canada Posts: 126 Likes: 351 Liked 80 Times in 28 Posts	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.

08-16-2013, 06:53 PM	#6
Mark Howes Member Join Date: Nov 2001 Location: Saint John, NB Canada Posts: 126 Likes: 351 Liked 80 Times in 28 Posts	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!