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Author Topic:   Tire Grinder
Dirt Freak

Total posts: 334
posted June 17, 2004 09:07 PM  
What is everybody using to grind tires? Where are you purchasing it from? Please be specific! Autozone, Napa? We need to get some glaze off of these hockey pucks.


Dirt Forum Champ
Total posts: 1875
posted June 17, 2004 09:12 PM  
the most recomended by tire guys is 80grit belt sander. buy them at walmart.

Dirt Full Roller

Total posts: 45
posted June 17, 2004 09:25 PM  
does anyone know if the grinding wheels that you can buy specificly for tire grinding is imca legal? thanks

unregistered Total posts: 45
posted June 17, 2004 09:56 PM           send a private message to jasonracin19x   Edit/Delete Message   Reply w/QuoteBBBBBB
Tire grinding is legal as long as you can't see the cuts in the tire. That being said, most of the guys around here are using a 16 grit grinding disk which does leave marks, but I have yet to hear of anyone getting in trouble for it. Since I don't have a grinder I use a belt sander with 50 grit paper. It works ok but you've got to take a little more time to get really get them done.

Dirt Freak

Total posts: 229
posted June 17, 2004 10:02 PM  
I believe Randy's Racemart sells tire grinding discs, they even have one that is called a "nailhead" that will sipe the tire.
I know the siping is IMCA Illegal but not sanding.
I know these discs are not cheap, but people say they are worth it.
Anyone using the Racemart tire grinding discs?
I use 80 grit sand paper on a electric orbital sander, a little slow but a lot safer.

Dirt Forum Champ
Total posts: 2007
posted June 18, 2004 05:10 AM  
We have been using the tire disk for a couple years and i have to say it is way better than regular sandpaper. Doesnt clog up as fast and keeps cutting. WE use it on a variable speed grinder which i would reccomend because you need to keep the speed down to control it. If you put enough pressure on it it will cut small 'sipes' (if you want to call them that) in the tire but they usually wear out by the end of a night of racing.

Dirt Forum Champ
Total posts: 755
posted June 18, 2004 06:01 AM  
There's also a warning lable attached to the grinding disc.....I believe it goes something like this....WARNING: This Item will make hamburger instantly.

LOL no joke.

Dirt Maniac

Total posts: 126
posted June 18, 2004 06:58 AM  
we have that "nailhead" type grinder and it works great. yes be careful with it as it will take the hyde right off. works great. worth the money for sure.

Dirt Freak

Total posts: 357
posted June 18, 2004 09:18 AM  
using the 16 grit tire rasp is the best for keeping the tires from glazing over. It is a 7" curved metal disc with what looks like metal shavings on it. This gives you sipes in the tire with out siping it. You can use this wheel when you are not allowed to sipe.

Mod 78
Dirt Full Roller

Total posts: 42
posted June 22, 2004 09:06 AM  
The disk from Race mart works the best. I also seen a guy at McAllen last year cut clear through the pants of his fire suit when the disk bounced off of the tire.

Dirt Roller

Total posts: 25
posted June 22, 2004 10:20 AM  
I was just wondering if anyone has run into a problem with tech useing the nail grinder. Thinking about trying this but I don't want to get harassed.

Dirt Administrator

Total posts: 6243
posted June 22, 2004 10:24 AM  
jammin -

Are you talking about the 7" "Nailhead" or 16-Grit type?

I'm a$$uming the 16-Grit since it is more expensive.


Dirt Forum Racer

Total posts: 78
posted June 22, 2004 02:55 PM  
MOD 78 It jus barly touched !! Thank God!
That thing will sure get you attention quick. Cya

Dirt Administrator

Total posts: 6243
posted June 22, 2004 06:32 PM  
We have used the 16 grit wheel and the 80 grit belt sander. The 16 grit wheel is faster, but it can remove alot of material quickly if you aren't careful. The belt sander works better in my opinion. It does a better job of softening the surface, and it is ALOT SAFER!!!

One other thing to keep in mind, when you talk to tire manufaturers like Hoosier, their reps usually recommend the belt sander because the 80 grit doesn't generate as much heat. Anytime you are grinding a tire, pushing too hard, and making blue smoke, you are putting that tire through a heat cycle. This could end up hardening the tire compound in the long run. If you want to harden a new tire to make it last, this will help to heat cycle it.

If you want to soften the tread and make it wear, both methods will work well, just don't go too hard or too fast with the grinder or the sander.

Dirt Freak

Total posts: 251
posted June 25, 2004 11:31 AM  
What type of grinder/polisher are you all using....Have the disc but having trouble with a grinder that is too fast...

Dirt Forum Champ
Total posts: 2007
posted June 25, 2004 12:52 PM  
Ours is a Milwaukee variable speed

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