Drag radial spinning on rim??

blwilliams · 08-13-2024, 04:12 PM

I posted this question on another forum but have not had any luck on suggestions or advice so I'll give it a shot here:

Im running a M/T 28.0 / 9.0R 3354R tire on a 3400 pound Nova. Car runs 11.70 in good air 11.90 in the summer.
I have had the issue of the slick turning on the rim.
My wife drives this car primarily and as it has became quicker and quicker I have started to have fears of the tire deflating du to the tire movement on the rim.
I have tried some RTV between bead and rim but with no success.
I tried adding rim screws, and it did stop the rotation but the car has slowed .3.
I called M/T and was told the rim screws are a bad no no on the radial tires.

Has anyone else had issues like this?
If so how/what have you done to stop it?

jmcarter · 08-13-2024, 04:26 PM

What tire pressures? Trans/ratio?

blwilliams · 08-13-2024, 05:10 PM

Quote:

Originally Posted by jmcarter

What tire pressures? Trans/ratio?

400 TH 2.52 low gear 4:11 rear gear
8" wide rim 16 psi

Spins both off of foot brake as well as TB

pmrphil · 08-13-2024, 06:41 PM

When the tires are mounted you cannot use lube, only water, RTV will not help

1700camaro · 08-13-2024, 07:11 PM

We run the M/T PBRs 29.5x10.5 on a 9" wide rim. The car is a 3200 lb. Camaro runs high 5s 1/8th & high 8s 1/4 mile. They do move about 2"s over about 50 runs. We leave off a transbrake & 60' in the high 1.20's - low 1.30s.

IMO, you're not running enough pressure. We started around 18 lbs. & are at 20 lbs. now to help slow the slip.

Get rid of the rim screws, M/T is right!

I have double beadlock rims now but haven't been to the track on them. I'm going to lower the pressure back down around 18 lbs. again.

jmcarter · 08-13-2024, 07:19 PM

With a 11.70 car I?d go up to 22 lbs?you?re probably wadding up the tire around the narrow rim. You can slow-mo video to see how the tire is reacting. More pressure you use and hook the faster you’ll go.

blwilliams · 08-13-2024, 09:53 PM

To all that have replied.
Thank you for the advise.
I'm getting tires discounted tomorrow to clean all the crap of and weld the holes shut.
Will try more air pressure next time out.

Run to Rund · 08-14-2024, 12:09 PM

While you are at it, sandblast the bead areas of the wheels.

1320racer · 08-14-2024, 03:04 PM

totally unnecessary. I've run radials for 2 decades without once ever "spinning on the rim"

All that required is the rim's and tire's bead is cleaned with acetone/Lacquer thinner, brakekeen, etc. and them mount them dry. IF they move at all, it will be minimum in the 1st few hits

blwilliams · 08-14-2024, 04:10 PM

Just to add another question to the group here.
long as the rim screws do not tear up the bead, how are the rim screws any different from a beadlock wheel?

08-13-2024, 04:12 PM	#1
blwilliams Junior Member Join Date: Jul 2007 Posts: 9 Likes: 0 Liked 0 Times in 0 Posts	Drag radial spinning on rim?? I posted this question on another forum but have not had any luck on suggestions or advice so I'll give it a shot here: Im running a M/T 28.0 / 9.0R 3354R tire on a 3400 pound Nova. Car runs 11.70 in good air 11.90 in the summer. I have had the issue of the slick turning on the rim. My wife drives this car primarily and as it has became quicker and quicker I have started to have fears of the tire deflating du to the tire movement on the rim. I have tried some RTV between bead and rim but with no success. I tried adding rim screws, and it did stop the rotation but the car has slowed .3. I called M/T and was told the rim screws are a bad no no on the radial tires. Has anyone else had issues like this? If so how/what have you done to stop it?

08-13-2024, 04:26 PM	#2
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,223 Likes: 2,176 Liked 2,966 Times in 913 Posts	Re: Drag radial spinning on rim?? What tire pressures? Trans/ratio? __________________ Jim Carter 2340 Super Stock 2340 SST/2340 Stock Set another place at the table

08-13-2024, 06:41 PM	#4
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 432 Likes: 1,446 Liked 322 Times in 137 Posts	Re: Drag radial spinning on rim?? When the tires are mounted you cannot use lube, only water, RTV will not help __________________ Phil Molski PMR Performance S/C 1623

08-13-2024, 07:11 PM	#5
1700camaro Member Join Date: Mar 2010 Posts: 189 Likes: 50 Liked 113 Times in 61 Posts	Re: Drag radial spinning on rim?? We run the M/T PBRs 29.5x10.5 on a 9" wide rim. The car is a 3200 lb. Camaro runs high 5s 1/8th & high 8s 1/4 mile. They do move about 2"s over about 50 runs. We leave off a transbrake & 60' in the high 1.20's - low 1.30s. IMO, you're not running enough pressure. We started around 18 lbs. & are at 20 lbs. now to help slow the slip. Get rid of the rim screws, M/T is right! I have double beadlock rims now but haven't been to the track on them. I'm going to lower the pressure back down around 18 lbs. again.

08-13-2024, 07:19 PM	#6
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,223 Likes: 2,176 Liked 2,966 Times in 913 Posts	Re: Drag radial spinning on rim?? With a 11.70 car I?d go up to 22 lbs?you?re probably wadding up the tire around the narrow rim. You can slow-mo video to see how the tire is reacting. More pressure you use and hook the faster you’ll go. __________________ Jim Carter 2340 Super Stock 2340 SST/2340 Stock Set another place at the table

08-13-2024, 09:53 PM	#7
blwilliams Junior Member Join Date: Jul 2007 Posts: 9 Likes: 0 Liked 0 Times in 0 Posts	Re: Drag radial spinning on rim?? To all that have replied. Thank you for the advise. I'm getting tires discounted tomorrow to clean all the crap of and weld the holes shut. Will try more air pressure next time out.

08-14-2024, 12:09 PM	#8
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 578 Likes: 7 Liked 47 Times in 25 Posts	Re: Drag radial spinning on rim?? While you are at it, sandblast the bead areas of the wheels.

08-14-2024, 03:04 PM	#9
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,141 Likes: 105 Liked 577 Times in 284 Posts	Re: Drag radial spinning on rim?? totally unnecessary. I've run radials for 2 decades without once ever "spinning on the rim" All that required is the rim's and tire's bead is cleaned with acetone/Lacquer thinner, brakekeen, etc. and them mount them dry. IF they move at all, it will be minimum in the 1st few hits Last edited by 1320racer; 08-14-2024 at 03:07 PM.

08-14-2024, 04:10 PM	#10
blwilliams Junior Member Join Date: Jul 2007 Posts: 9 Likes: 0 Liked 0 Times in 0 Posts	Re: Drag radial spinning on rim?? Just to add another question to the group here. long as the rim screws do not tear up the bead, how are the rim screws any different from a beadlock wheel?