i cut some horizontal slices in teh main center lugs a week or two ago with the dremel(really messy and not recomended). today i decided to do the rest of the tire with my rockwell buzzer tool i think they call em sonic crafters. ended up working pretty good for what i was using for. nothing too crazy or deep, just puttin the cuts back in the nobbs that had worn off and some extras on some of the others.
I wondered how a knobby knife would work for siping, then I put a trials tire (MT43) on so now it's a moot point. I would like a before and after ride report though.
Most good performance automotive speed shops can get you tire groover's with different width blades available. Actual tire siping tools are harder to come by & last I heard, much more expensive. But using what you got to see if it helps before laying out the cash on a groover or siper is a pretty good idea.
i didnt cut too deep, just about how deep the stock sipes were. so not really sure if ill notice all that much but hope it helps a little in the corners and gaining traction commin out of them on my track. not sure on the hobby knife really. my buddy wants to buy a siping tool but i dont know if we need one. maybe only thing it would work better on would be maybe shapeing the nobbs how you wanted them,
Just bought the Rockwell Sonicrafter 37 pc. set from Amazon. ...$89.00 Seemed like a good deal. Asked around and it was generally thought to be decent quality.
ya its worked for us pretty good so far. i had a cheaper one that i took back the same day i bought it and got the rockwell. the cheapo didnt compare to the rockwell in performance at all. i was skepticle about the things for years but they are really super handy lil gadgets.
doug, i definatly felt a difference in bite comming out of the corners...the corners were still slicker than snot(on my track) but when i straightend er up and hammered down it was gettin enough traction again to pull the front up a lil, i hadnt felt that in awhile. id say it definately worked. keep in mind i kept the sipes fairly shallow to keep from ripping chunks of tire off. so im sure it would have felt more dramatic if i had went deeper into the tire.
