Tire grinding disc

[musolino21]

What is a common tire grinding disc in the pits these days? Poske has one on their website, but looking for opinions. Thanks.

[joedoozer]

I just run a straight 36 grit sanding disc. Keep it on a slow speed so it doesn't kick and jump around. It would probably work a little better if I was using one of those foam backing pads.

[modfan83]

I've noticed it really depends on what tires you are running. If you dont have a tire rule and can run suoer soft stuff like 1100 and 1200 then a sanding disc works great. If you run a spec tire like 55"'s then something a little more radical works well like the disc MRW or Allstar sells with the carbide bits in it. The super aggresive disc seems to rip and tear the soft tires more than buff them off.

[musolino21]

thanks guys

[Egoracing]

One other thing to add, I would MUCH rather bump a 24 or 36 grit pad on a low speed buffer than a nail head wheel with my hand or leg.

[Graff Spee]

You guys all seem to really like the coarser grits. I just use 80 grit at a slow speed. I am just taking the glaze off. The first three laps are all I need. The tires start to get heat after that (feature) so I am fine.

[hall99]

I agree Graff 80 grit is what we use also I would hate to mess up all of the grooving and siping we do anything more course.

[charcoal01]

use a dewalt variable speed buffer/grinder. they sell a 3m stickit foam backing pad thats 8" and screws onto the 5/8 arbor. 36 grit works fine on the harder g60 tires but i could see how it might chew up softer tires. with the foam backing pad and 1000 rpm setting on the buffer you can apply pretty light pressure and not worry about chunking up the tire or eating your sipes up.

[stock car driver]

http://i642.photobucket.com/albums/uu150/jnjfab/parts%20for%20sale/100_0601.jpg


http://www.jnjfab.com/gallery/gallerylarge.asp?picid=373


I use this on G60 tires and dont sipe any more at all.

I go deep for tacky tracks and shallow for dry tracks for that extra bite at the start of races!!

I make these myself. They will work on soft tires also but you gotta be careful and control how deep you go. Ive used it on Hoosier D40s.

[2rs]

Good god that looks like something right out of the midevel times, i need one of those for my spec 55s!!

[HikedUp]

Those nail discs are excellent on the spec d55 tires, just be careful when you use them they can rip you apart if they catch your clothes.

[stock car driver]

Those nail discs are excellent on the spec d55 tires, just be careful when you use them they can rip you apart if they catch your clothes.

This is not the nail disc that Day and others sell. Those have the nails too close together and just feather the whole surface of the tire.

I make this disc myself.

1 disc will last you years. You can remove the screws and insert new ones 3-4 times when needed. Then remove them and install them in new locations on the disc many many times to repeat the process.

The nail discs were only lasting me 6 weeks of racing using them on my IMCA G60 tires. Which are close to the lm d55.