Caltrac Tuning Info LOOK HERE

RockinRobin said

Thanks, but, Radials vs slicks = apple vs oranges. Normal pressure is 13.5 lbs. I tried it at 17lbs and all it did was spin. Tried lowering to 12 lbs. and it hooked a little better (.03 better 60 ft.) but still spun a little. It spun at the exact same time, so I felt like tire pressure was a band aid on the problem and not a cure.

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I run my 315/60 M/T Drag Radials most of the time because it is over a tenth faster on them in the 1/8. It hooks most of the time. But I have a set of really old M/T 29.5/10.5 slicks that are probably 15 years old mounted on another set of wheels. When I run them I don't even have to do a burn out. It has never spun with the old slicks. I am running home made Caltracs with stock leaf springs. They are in the top hole with no preload ( just touching) and my Rancho shocks set on 9.