radial tires.

J Halsey Jr · 05-31-2010, 04:26 AM

Do's any one how much faster or slower a 9/30 radial slick is over a bias 9/30. Thanks

Michael Beard · 05-31-2010, 05:37 AM

Mickey Thompson 30x9 radial is .13 faster in the 1/4, about .08 faster in the 1/8th than a comparable bias ply.

HawkBrosMav · 06-03-2010, 07:52 PM

Does anyone know if a 30x9 radial will fit on an 89' mustang without having to modify the wheel openings? We have a bias goodyear slick 28x9 and it fits no problems. It grows and the radials will grow less so we are thinking it might work. anyone try it before?

another question does anyone make a radial that is 29x9? I guess I haven't done enough research.

BH

greg fulk · 06-03-2010, 08:42 PM

M/T makes a 29.5X9

72Malibu · 06-03-2010, 09:44 PM

Hoosier makes two versions of their 30x9 radial slick, one with 92.5 rollout and one with 94" rollout.

67ss · 06-03-2010, 09:51 PM

Bob, how close are the 94" roll out tires to the front of the 1/4 lip on your car? I run the 92.5" roll out and have about 7/8" of clearance so the taller tire would be a tad over .5". Since these things don't grow at all I figure that should be plenty. Gettin ready to buy new tires and was thinking of going to the taller one.

Rory McNeil · 06-03-2010, 10:43 PM

[QUOTE=HawkBrosMav;190465]Does anyone know if a 30x9 radial will fit on an 89' mustang without having to modify the wheel openings? We have a bias goodyear slick 28x9 and it fits no problems. It grows and the radials will grow less so we are thinking it might work. anyone try it before?

another question does anyone make a radial that is 29x9? I guess I haven't done enough research.

Unless a 89 Mustang has a considerably larger wheel well opening than my 85, I doubt that a 9x30 would fit without some trimming. I used to have 9x28`s on 8" wide Weld Draglites with 5 1/2" back space, which required some good hammer blows on the inside, but nothing on the actual openings, but when I switched to M/T 9x29 1`2" slicks, I had to do quite a bit of slicing & hammering on the wheel openings, especially in the front sections.

HawkBrosMav · 06-03-2010, 11:45 PM

Rory,

when you switched to the larger tire was it to a radial or still a bais slick? I guess what i'm really asking is did you have to trim to get the tire just to fit in general or did you have to trim it to give the tire room to grow?

Also to anyone,

How much clearance would I need to make sure I had with a radial? I understand they don't grow much if any at all... would 1/4" be enough??

BH

Chris1529 · 06-04-2010, 04:54 AM

I think you would have to trim the wheel openings. I know they would'nt fit on my 84, so if you have an LX Mustang, I think the openings are the same. If you have a GT, the ground effects probably make them even smaller.

1/4" is cutting it pretty close. You would have to check the tire for clearance around the entire tire plus account for any shifting of the body. In my opinion, 1/4" is probably a little close.

72Malibu · 06-04-2010, 07:36 AM

Quote:

Originally Posted by 67ss

Bob, how close are the 94" roll out tires to the front of the 1/4 lip on your car? I run the 92.5" roll out and have about 7/8" of clearance so the taller tire would be a tad over .5". Since these things don't grow at all I figure that should be plenty. Gettin ready to buy new tires and was thinking of going to the taller one.

I've got at least an inch at the front of the wheel opening. I tried Garrets 92.5's at the end of last year and they looked kinda small

05-31-2010, 04:26 AM	#1
J Halsey Jr Junior Member Join Date: Mar 2008 Posts: 17 Likes: 0 Liked 0 Times in 0 Posts	radial tires. Do's any one how much faster or slower a 9/30 radial slick is over a bias 9/30. Thanks

05-31-2010, 05:37 AM	#2
Michael Beard VIP Member Join Date: Sep 2002 Location: Columbus, OH Posts: 4,060 Likes: 0 Liked 13 Times in 9 Posts	Re: radial tires. Mickey Thompson 30x9 radial is .13 faster in the 1/4, about .08 faster in the 1/8th than a comparable bias ply. __________________ Michael Beard - NHRA/IHRA 3216 S/SS

06-03-2010, 07:52 PM	#3
HawkBrosMav Member Join Date: Apr 2009 Posts: 362 Likes: 6 Liked 302 Times in 73 Posts	Re: radial tires. Does anyone know if a 30x9 radial will fit on an 89' mustang without having to modify the wheel openings? We have a bias goodyear slick 28x9 and it fits no problems. It grows and the radials will grow less so we are thinking it might work. anyone try it before? another question does anyone make a radial that is 29x9? I guess I haven't done enough research. BH

06-03-2010, 08:42 PM	#4
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: radial tires. M/T makes a 29.5X9 __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

06-03-2010, 09:44 PM	#5
72Malibu Junior Member Join Date: Nov 2008 Location: Republic,Mo Posts: 93 Likes: 0 Liked 0 Times in 0 Posts	Re: radial tires. Hoosier makes two versions of their 30x9 radial slick, one with 92.5 rollout and one with 94" rollout. __________________ * 72 Malibu * 1.329-3.99-6.28@106.71-9.98@131 best 60ft to date-1.2997

06-03-2010, 09:51 PM	#6
67ss Junior Member Join Date: Jan 2008 Posts: 29 Likes: 0 Liked 0 Times in 0 Posts	Re: radial tires. Bob, how close are the 94" roll out tires to the front of the 1/4 lip on your car? I run the 92.5" roll out and have about 7/8" of clearance so the taller tire would be a tad over .5". Since these things don't grow at all I figure that should be plenty. Gettin ready to buy new tires and was thinking of going to the taller one. __________________ Chad Harris 67 Chevelle SS http://mysite.verizon.net/harrisracing

06-03-2010, 10:43 PM	#7
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,307 Likes: 312 Liked 1,089 Times in 298 Posts	Re: radial tires. [QUOTE=HawkBrosMav;190465]Does anyone know if a 30x9 radial will fit on an 89' mustang without having to modify the wheel openings? We have a bias goodyear slick 28x9 and it fits no problems. It grows and the radials will grow less so we are thinking it might work. anyone try it before? another question does anyone make a radial that is 29x9? I guess I haven't done enough research. Unless a 89 Mustang has a considerably larger wheel well opening than my 85, I doubt that a 9x30 would fit without some trimming. I used to have 9x28`s on 8" wide Weld Draglites with 5 1/2" back space, which required some good hammer blows on the inside, but nothing on the actual openings, but when I switched to M/T 9x29 1`2" slicks, I had to do quite a bit of slicing & hammering on the wheel openings, especially in the front sections. __________________ NHRA 6390 STK M/S 85 Mustang

06-03-2010, 11:45 PM	#8
HawkBrosMav Member Join Date: Apr 2009 Posts: 362 Likes: 6 Liked 302 Times in 73 Posts	Re: radial tires. Rory, when you switched to the larger tire was it to a radial or still a bais slick? I guess what i'm really asking is did you have to trim to get the tire just to fit in general or did you have to trim it to give the tire room to grow? Also to anyone, How much clearance would I need to make sure I had with a radial? I understand they don't grow much if any at all... would 1/4" be enough?? BH

06-04-2010, 04:54 AM	#9
Chris1529 VIP Member Join Date: Dec 2006 Location: West Virginia Posts: 1,366 Likes: 6 Liked 70 Times in 29 Posts	Re: radial tires. I think you would have to trim the wheel openings. I know they would'nt fit on my 84, so if you have an LX Mustang, I think the openings are the same. If you have a GT, the ground effects probably make them even smaller. 1/4" is cutting it pretty close. You would have to check the tire for clearance around the entire tire plus account for any shifting of the body. In my opinion, 1/4" is probably a little close. __________________ Chris Bowman The Mountain State Mustang 1984 Mustang GT350