Drag radial turned on rim

Transmission to Rear-end

Moderator: Team

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Drag radial turned on rim

Post by steve cowan » Sun Aug 06, 2017 9:30 pm

I ran the ute on Saturday night and run 11.16 @ 120.85
1.53 60 ft
This is the best 60 ft so far and actually lifted front left wheel about 2 inches of the deck
I marked the tyres before the meeting and noticed last night the left hand rear tyre has move approx 10 mm
Is this a issue, I did not break the bead and glue prior
Car weighs approx 3500 pounds and I run 18 psi tyre pressure
Thanks for feedback
Steve c
255/60/15 drag radial

Monza355
Pro
Pro
Posts: 222
Joined: Sat Dec 07, 2013 6:06 pm

Re: Drag radial turned on rim

Post by Monza355 » Thu Aug 10, 2017 6:56 pm

I would not worry about it at all !
But if you like you can use permatex hi tack gasket to glue them on the wheels

Congrats on the improvements as well..

BigBlocksOnTop2
Pro
Pro
Posts: 386
Joined: Thu Mar 21, 2013 12:03 pm
Location: Chancellorsville Battle Field, Chancellorsville, Virginia

Re: Drag radial turned on rim

Post by BigBlocksOnTop2 » Fri Aug 11, 2017 7:51 am

Monza355 wrote:I would not worry about it at all !
But if you like you can use permatex hi tack gasket to glue them on the wheels

Congrats on the improvements as well..
Would 3M Weather Strip adhesive be better?

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Fri Aug 11, 2017 5:45 pm

Thanks for your replies
The question I have with sealing or gluing the bead
How difficult is it to clean the wheel bead during tyre change out?
A friend of mine suggested hair spray, yeah sounds weird but it seals up like contact cement apparently

GARY C
Guru
Guru
Posts: 3403
Joined: Tue May 14, 2013 10:58 pm

Re: Drag radial turned on rim

Post by GARY C » Fri Aug 11, 2017 7:29 pm

Nothing to worry about unless the tire comes off the wheel and you hit the wall at 100+ MPH...which is the exact reason they came up with wheel screws.
Is it worth the cost to find an easy less suitable fix?

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Fri Aug 11, 2017 8:58 pm

Hi Gary,
It is highly recommended not screw a drag radial tyre
On my other post the guy's said it will destroy the tyre bead as per mickey Thomson
I have not seen this happen with my own eyes but I am tempted NOT to try it out

midnightbluS10
Member
Member
Posts: 190
Joined: Sun Oct 20, 2013 8:41 am

Re: Drag radial turned on rim

Post by midnightbluS10 » Sun Aug 13, 2017 7:08 am

steve cowan wrote:Hi Gary,
It is highly recommended not screw a drag radial tyre
On my other post the guy's said it will destroy the tyre bead as per mickey Thomson
I have not seen this happen with my own eyes but I am tempted NOT to try it out

Something like this could happen


Here are the pics of what rim screws alone can do. Glad nothing bad happened to you guys Jesse.
Image
Image
Image
Those tires were on Jesse Lambert's car from Virginia. This was back around '09.

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Sun Aug 13, 2017 9:20 pm

midnight,
thanks for the photos
man thats done some damage,i didnt think the bead could get destroyed to that extent
steve c

GARY C
Guru
Guru
Posts: 3403
Joined: Tue May 14, 2013 10:58 pm

Re: Drag radial turned on rim

Post by GARY C » Mon Aug 14, 2017 2:46 am

Yes I know MT says not to but most do, maybe it's a piece of mind, I know a lot of guys running sub 1.2 60ft time on screwed drag radials. I have read where guys glue them and they move about 1" and then stop.

Normally damage like shown in the pictures are from too short of a screw, not enough screws, improper install or only screwing one side (yes people actually do that) or all of the above on the same wheel.

I have seen a lot of guys try to only run 6 or 8 per side of wheel instead of 16,this puts an uneven seal on the bead kind of like an over tq header flange, think about trying to run a bead lock with only 6 or 8 screws.

Also I have noticed that on alum wheels with thicker beads the screws that come in a kit are to short, they are 3/4" and some need 5/8" and some 1" and the bit is to small this will cause the screw to bite the wheel and push the bead away, I always drill mine with a bit that will let the screw turn free in the hole with no tire but not loose and make sure it's square with the inner bead of the rim not beveled outer bead so that the screw goes in the meat of the bead and not in the thin weak part and then I pre drill the bead of the tire with about an 1/8" bit to half the bead depth so I know when the screw tightens up it is firmly planted in the bead and pulling it against the rim.

To unscrew them when its time to change tires a reverse dry hope are 2 helps because they will be locked in place. :D

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Mon Aug 14, 2017 6:18 am

hi gary,
thanks for the clarification,always appriciate useful information
kinda makes sense when you look at the tyre,short screws would rip the bead,probably do the same on a bias-ply tyre as well
i am finding more pictures of rim screws in the pro radial more than the older style i am using

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Tue Aug 15, 2017 4:15 pm

hi guys,
what are your thoughts on swapping rear wheels side to side after each meeting?
these tyres are not directional but does a tyre get a memory in it as far as the rotational forces put on the bead and plys ?
probably starting to overthink this a little

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Tue Aug 15, 2017 7:50 pm

Sorry guys,
Just had a better look
Tyres are directional
Yep, eyes are painted on

tuffxf
Member
Member
Posts: 179
Joined: Wed Dec 20, 2006 7:34 am
Location: Central Qld Australia

Re: Drag radial turned on rim

Post by tuffxf » Wed Aug 16, 2017 4:47 am

Gday Steve,
Forget the screws, use hairspray or v belt dressing spray.
Otherwise just make sure the rim is spotless with brakeclean or something and give the beads a wipe with the same and fit dry.
Usually they may move a bit initially then pull up.
Cheers

SupStk
Expert
Expert
Posts: 957
Joined: Wed Jun 22, 2005 6:25 pm
Location: Box Elder, SD

Re: Drag radial turned on rim

Post by SupStk » Sat Aug 19, 2017 2:23 pm

Couple points here. The photos showed tires that spun on the rims. The screws either got sheared or most likely not long enough.
All drag slicks are directional. Neverless I switch when they start to roll. Switching breaks down the "graining", improves traction and tire life.
Monty Frerichs
B&M Machine

steve cowan
Pro
Pro
Posts: 379
Joined: Wed Jul 27, 2011 5:22 am
Location: brisbane AUSTRALIA

Re: Drag radial turned on rim

Post by steve cowan » Sat Aug 19, 2017 5:51 pm

Hi supstk,
Do you change rear wheels side to side or remove tyres off rims and change sides also I think you would have to reverse tyre to directional arrow facing forward or don't you worry about directional arrow
Sorry if sounds confusing

Post Reply