The issue is not compound or temp. Spring has finally come and for this race we are running F30s, and on Sat it was appx 75-Far. at the track. We are practicing for a regional 1/24 race in June at All Scale raceway. We will be running BRM 1/24 Group-Cs and ScaleAuto GTs – and the spec tires are sponge for both classes. For the tires a traction liquid is spec’ed – ScaleAuto Tire cleaner; without it the sponges wont hook up.
So Marty, Ary and a few others have been practicing at Kings with their ScaleAutos and the cleaner (applied to the tires). It leaves a light residue on the track that is dry to the touch, but has produced ever so slightly better traction for the Slot.It and NSR et al. rubber tires (we first noticed it runing 1/32s after the 1/24 tuning experiments on Thurs and 4/11).
Last weekend we had our first race after the first ScaleAuto experiments, and several people had the same issue with their tires. The inside treads seemed to be peeling (about 2mm from the inside wall) as if the tire was starting to separate at a molding line. Tires also seemed to be wearing more quickly and were leaving more marbles on the track and the cleaning tape.
We also had some weird handling problems. Overall the cornering traction was better, but at weird spots it seem to break (like a magnet) and cars did a lean-over (rather than a violent barrel role or de-slot) farther into the curve than they would normally de-slot.
"... get on your bad motor scooter and ride!"
Sammy with Montrose