Any tips for grooving dirt tires?

[Brian Conn]

....................One idea I read a long time ago was to run a bolt through the tyre and with a nut and washer on either side of the tyre.  Do the two nuts up against each other to clamp the tyre and get it the tread to balloon somewhat.  Then when you cut with your saw, you get a nice deep groove in the face of the tyre without cutting way down the side wall.  Sounded good to me!

Cheers
Alan

I'm glad that you reposted that.....its been a few years ago that I saw that as well, but couldn't remember all the details, particularly the two nuts clamping the tire to get it to balloon up part.
  Got some pictures of the N.E Kansas (U.S.A) Alan Barton....local dirt track stock car racer from the 80's - 90's...will get them posted