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I have always used the formula:
RPM x Tire dia in inches/gear ratio/336 (a constant)

i.e. 8100 rpm X 19.5" divide by 3.44, divide by 336 = 136.65 mph

I have never seen a 10" tread radial that is much less than 22" tall.

Great video by mystahagy. If you want to have fun below the national level this is a good way to go.

Lynn is correct - if you want to be competitive at the national level, under the current rule...

I have purchased air cooled vw parts from cip1 for many years, and have never had any problems with their service or products. Their staff has always been knowledgeable and courteous. I hope you are...

For a 900 lb autocross formula car Avon A15 cross ply tires work very well, They are comparable to Hoosier 25 compound, and wear about the same. Hoosier wets are heavily grooved, which reduces...

I believe the ball joint in question is a Lockheed part, used by Mclaren and others up to the early 70's. I came across the same problem with finding parts for the front ball joints on a 1972 Leda...

By bump oversteer do you mean toe out in bump?