Radial wobble
 

Anybody have any ideas on getting rid of this unwanted (scary) problem on a super stocker 110 inch wheelbase. Had hoosier '|s on it for 15 passes & i could not take it anymore, terrible wobble half track on, and not bad every pass , but real bad others. Any ideas guys would be much appreciated,,,, p.s car is 66 chevy two,,,,,,,,thanks in advance,,,,,,merrill:(:(

Re: Radial wobble
 

I tried at Indy one year to put very tall front tires with low air pressure on my car and it was horrible , wobble wise . Never had a problem at all before. I have heard wider rims help with radials as well .

Re: Radial wobble
 

I had it real bad in Reynolds with new radials, adjusted front shocks (tight) fixed my problem.

Re: Radial wobble
 

Do you have a rear anti-sway bar? If not, add one. Dyno

Re: Radial wobble
 

Anti roll, good shocks, shock adjustment, Phoenix Radial worked for me.

Re: Radial wobble
 

When I first tried Hoosier radials, and went with the widest wheel width they reccomended for their tires. I discovered radial wobble. Since I went to 1.5" to 2" wider wheels I have never seen it again. More air, more stable and the car hooks harder. I have found no down side. Presently I use MT & GY, same results. No more wobble. No rear sway bar, doesn't matter where I set the shocks.

Re: Radial wobble
 

I have heard form a reliable source the wobble comes from how the tire is built. When Brenda drove Pat Clifford's car earlier this year we put on a set of GDY radials, and the car ran faster at every increment down the track (same weight ). No hint of wobble. Call Brent in Daytona and talk with him.

Re: Radial wobble
 

I have both GY and MT radials mounted. Neither ever wobble. 31X13.5 GY, and 31.25X12.2R15W MT. Both sets on 15" wheels. Both like 15 to 17 psi. On my car the MTs are .05 to .07 quicker, and over 1/2 MPH faster. Both dead hook, but I think the difference is the 5 lb per tire heavier GY. I bought the GYs because of two guys telling me how much faster ther would be. Guess it depends on the car. My lights are the same with both. Now I have "bracket mode" and "heads-up mode" tires. LOL

Re: Radial wobble
 

Hey Merrill
I had bad wobble the first time I tries radials. So bad I took them off and put bias back on. When I put the radial back on I put the air pressure low like the bias. No wobble. Now I run about 11-11.5 lbs in my tires. The only time I get some wobble is when the car spins a bit and the tires can't catch up. The worst track is Gainsville for some weird reason. I run my rear shocks loose. I have Hoosiers now.

Re: Radial wobble
 

Tighten the compression on the front shocks and the extension on the rear shocks.

Also heard the phoenix are just as good as the MT's without the wobble, but haven't tried them. I always had my shocks set to those specs and it never was/ is a problem. Santhuff shocks.

Re: Radial wobble
 

Anti sway bar. 1st pass on a radial was worse then the time I had a front tire go down just past half track. With the bar in its a smooth ride. Nail in tire I ran it out. Didn't know anything was wrong till I got back to the trailer. Just thought it was a bad track. Picked up a screw in the lanes. With the radials I thought the car was going to flip over and let off at half track. Dad thought the same thing standing at the starting line.

Re: Radial wobble
 

For some cars, the front suspensions are the weak spot. Look at your tie rod ends. Are they the factory 40 year old tie rod ends? Even if they have been replaced, they can still flex to the point the car can pitch rotate.

Gary Wisecarver took care of this on our Camaro by utilizing a larger OD center link and round tube chromemoly as tie rods with heim joints. Pretty much took care of the wobble. We used Afco DA shocks for the front and Santhuff DA for the rear.

I understand the Eddie Rezac has a very good solution for the Chevy IIs.

Re: Radial wobble
 

i had the same radial wobble with my Hossier tires, ends up that this manufacturer tires work better on a 14" wheel, i put them on 12" wheels not knowing and it was quite the ride to say the least! Once i put them on a 14" wheel they were great speed wobble gone.

Re: Radial wobble
 

There ya go!

Re: Radial wobble
 

What about for a 9 inch Radial Hoosier stocker tire. Do they do it as well or is it just the wider SS tires that do it. Will a 10 inch rim work ok on the 9 inch versions?

Re: Radial wobble
 

When I was foot brake bracket racing mine, the 9" X 30" radials hooked better (with more air in them), ran quicker, and stopped all wobble when I went to 10" wheels.

Re: Radial wobble
 

Most are running 10" wheels (if they fit) with the 9X30 Hoosier Radials for higher air pressure and better stability. I have run as much as 24lbs and as little as 20lbs. No problems. Jim


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Re: Radial wobble
 

That's where I ran mine. Ran high nines on them. Thought they were all I needed until I got a Trans brake.

Re: Radial wobble
 

Good news cause I already bought them and mounted them. Thank you for the info.