M/t radial problem - Page 2

Ronnie Smith Jr · 03-16-2010, 08:38 PM

Dennis,

Make sure your front end is tight as well. I found in my old car (1st gen Camaro) that we needed to redo the front end. Installed a slightly larger OD center link. Converted the factory type tie rod ends to chrome moly round tube with heim ends. As the others have noted, sway bar or anti-roll will help on the rear and 14" rims.

Another thing to note as well is how the track is prepared. I experienced on marginal tracks I could not use the radials. When it came to National Event prepped type tracks or first class type facilities, I did not have an issue as much as before. I still had wobble but it was manageable.

FWIW

Ronnie, Jr.

Dennis Paz · 03-16-2010, 10:15 PM

Rear wheels are 14 wide. Front end has all new parts from wheel to wheel. Rear is 4 link with diagonal link and koni double adjustables. I think I just have a junk set . The car drives like a dream with the bias plys. If the radial m/t are so sensative I think some phoenix or hoosier radials are in my future. But I will call m/t first and see what they say.

Jody Lang · 03-16-2010, 11:07 PM

Dennis, I have heard of someone wrecking a car due to "radial wobble". Most say it's cured by stiffening the shocks.

My Hoosiers did it at 16 PSI but not at 12 PSI. Never did it once with the bias ply.

Dennis Paz · 03-17-2010, 09:00 PM

I had no idea this was such a common problem. I did stiffen the rear shocks a bunch and it helped enough I could get a full pass but was still a white knuckler. I have the front end way loose with all the usual weight transfer tricks and am thinking that may be half the problem. My car has not got a bunch of power so maybe a lot of transfer wont be needed to keep it happy. Maybe a set of stock coils instead of the moroso springs?? I took off the 90/10 shocks and tryed some 50/50 and made no difference at all.
Thanks for the help.

Rusty Davenport · 03-18-2010, 08:47 AM

I found a cure for the problem........if it scares you bad enough the bias will be just fine

Ed Wright · 03-18-2010, 09:29 AM

My Hoosiers completely stopped that when I went to wheels an inch or so wider than the tread. Not one wobble since. They hook better with more air and MPH better also.

03-16-2010, 08:38 PM	#11
Ronnie Smith Jr Member Join Date: Sep 2003 Location: Maryland Posts: 220 Likes: 0 Liked 0 Times in 0 Posts	Re: M/t radial problem Dennis, Make sure your front end is tight as well. I found in my old car (1st gen Camaro) that we needed to redo the front end. Installed a slightly larger OD center link. Converted the factory type tie rod ends to chrome moly round tube with heim ends. As the others have noted, sway bar or anti-roll will help on the rear and 14" rims. Another thing to note as well is how the track is prepared. I experienced on marginal tracks I could not use the radials. When it came to National Event prepped type tracks or first class type facilities, I did not have an issue as much as before. I still had wobble but it was manageable. FWIW Ronnie, Jr.

03-16-2010, 10:15 PM	#12
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 93 Likes: 0 Liked 0 Times in 0 Posts	Re: M/t radial problem Rear wheels are 14 wide. Front end has all new parts from wheel to wheel. Rear is 4 link with diagonal link and koni double adjustables. I think I just have a junk set . The car drives like a dream with the bias plys. If the radial m/t are so sensative I think some phoenix or hoosier radials are in my future. But I will call m/t first and see what they say.

03-16-2010, 11:07 PM	#13
Jody Lang Member Join Date: Mar 2002 Posts: 299 Likes: 28 Liked 81 Times in 25 Posts	Re: M/t radial problem Dennis, I have heard of someone wrecking a car due to "radial wobble". Most say it's cured by stiffening the shocks. My Hoosiers did it at 16 PSI but not at 12 PSI. Never did it once with the bias ply.

03-17-2010, 09:00 PM	#14
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 93 Likes: 0 Liked 0 Times in 0 Posts	Re: M/t radial problem I had no idea this was such a common problem. I did stiffen the rear shocks a bunch and it helped enough I could get a full pass but was still a white knuckler. I have the front end way loose with all the usual weight transfer tricks and am thinking that may be half the problem. My car has not got a bunch of power so maybe a lot of transfer wont be needed to keep it happy. Maybe a set of stock coils instead of the moroso springs?? I took off the 90/10 shocks and tryed some 50/50 and made no difference at all. Thanks for the help.

03-18-2010, 08:47 AM	#15
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 505 Likes: 4 Liked 100 Times in 26 Posts	Re: M/t radial problem I found a cure for the problem........if it scares you bad enough the bias will be just fine

03-18-2010, 09:29 AM	#16
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: M/t radial problem My Hoosiers completely stopped that when I went to wheels an inch or so wider than the tread. Not one wobble since. They hook better with more air and MPH better also. __________________ Ed Wright 4156 SS/JA