Hey guys, I figured I'd post this here instead of the wheel/tire section because it relates to drag racing. I have some M/T DRs that are pretty worn down, and I don't know how much longer I can use them. This would be for track only, and I don't really need that big of a burnout. How low have you guys run them before throwing them out? I guess, how little tread would you guys recommend running them at?
__________________ 84 Monte Carlo SS
12.4@110.4 1.79 60'
As mentioned, plenty run a drag radial when the tread marks are gone. But you need to keep an eye on them if that's the case, and once they show cords, toss them and get new ones.
Derek
__________________ 1970 Nova SS Clone: 383 SBC on 93 swill, 3600+ lbs., 11.12 @ 119.77 mph N/A, quicker on the jug... 2000 Formula: MACS, ORY, Magnaflow, !EGR, !AIR, Formato tune, stock long block, trans and rear end, still slow 2004 GMC Sierra 1500 ECSB 5.3: Magnaflow CB, K&N CAI, Formato tune, what I haul s**t with
Check out pictures, info and vids: www.fquick.com/Villain281H
"If ignorance is bliss, why aren't more people happy?"
Location: In the garage, working towards a 2900 lb raceweight :D
Posts: 10,800
Once they're totally gone, you probably have 5 passes left at most before you're in the danger zone, if the tire is still even working.
Some people, depending on who you talk to say that the tires really only work for about 20 passes then they start to go away... depends on who you talk to though, as I've heard between 10 to 30.
Slicks on the other hand, I've gotten 50 runs out of a set of 28x10.5S tires and had them work as good on pass # 50 as they did when they were new. From my exp, as long as the slicks don't have a ton of exposure to sunlight/cold, they're generally good for 50 to 60 runs, depending on your burnout, how hard the car leaves, and how heavy it is. (how the car leaves and weight being how hard the sidewall is worked, more they're worked the more likly you can actually wear the sidewall out before the rubber is gone)
never had any issues I get 60 passes or so out of a set. Have not really killed the sidewalls or anything
Tim
__________________ 86 Mustang
428ci w
tfs tw, FTI cam, pump gas, radials, 10.08 133.14 1.374 60' has been 1.3142 60'
418 ci L92, vic jr, 4 hole, c4 8" converter. 9's on pump gas is the plan
__________________ 02 z28 A4 Stock Internal with SS3600 11.558 at 116.24 MPH 1.546 60ft DA -832 11/25/07 Cam Only and SS4000 10.617 at 124.66MPH 1.356 DA -870ft Race weight 3250lbs
ram air info with ac http://www.ls1tech.com/forums/genera...r-install.html
without ac see post 5, pm me if you need one
I bought some 275/40/17 Bald MT ET Streets for $20 3 years ago. Had a number of passes on them and just recently took them off. (needed the rims) It still looks like I did when I got them, so they still got a few passes/burnouts left. I figured I'd be safe till I saw cord.
Did this with them back in July with around 17-20psi I think. 1.71 60':
Running worn out M/T DRs 
