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I've been running street stud ice racing for a few yrs with fwd and awd championships,currently leading the fwd class.I've fooled around with pressures and other than feel the grip doesn't really seem to change much in a 10 psi window from 20 to 30psi.I generally just run 25 as it feels ok.
I did have a bit of an oddball thing happen this past weekend,a buddy runs in the same class and we both use walmart cheapies on the rear but premium tires on the nose.He was running midpack on Saturday so on a whim he flipped on another pair of wallies to the front and dropped the pressures to 20,he chased me pretty hard for the win but couldn't quite get the drive.
Lowered to 18psi for the last race and I had to use every trick in the book to keep him behind me at the checker,he actually pulled off a 360 mid race trying to avoid hitting me and chased me down in less than 2 laps so he was clearly faster than me.
Guess who will try a pair of low psi wallies on the front this weekend.:D
infered temp gun, the point and click style, take three contact points on the tire surface as soon as you can after running. middle, outside and inside, use those readings to help dial in contact path, then work out from that for setup as well to your feel.
infered temp gun, the point and click style, take three contact points on the tire surface as soon as you can after running. middle, outside and inside, use those readings to help dial in contact path, then work out from that for setup as well to your feel.
Wouldn't waste my time with an inferred gun even for summer stuff,certainly going to get 0 results on the ice.You can't possibly get slowed down and get a reading before the temps equalize even with a proper probe type pyrometer.
Infared is perfect for checking brake temps,checker header tubes for a dead cylinder etc etc but not for chassis sorting.
Hee hee- too true. Actually, what you get is really really interesting dynamically
(look at the F1 FLIR of the tyres they're broadcasting now, especially when the car stops)
but for anything other than dynamic measurements, poke with the pyrometer
or you'll just confuse the hell out of yourself.
t
now, sometimes I just mess with people. It's more entertaining that way. george graves
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