Quote:
Originally Posted by Bernie Cunningham
I would like to bring this back up as it's got to be relevant.
Does anybody know what the, before roller, spring pressures were on a Nascar CUP car?
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Its irrelevant....they have 6 and 7mm valve stems in the 60 to 70 gram range with a spintron designed valve train with the proper geometry, they use less spring pressure than you would think.
there is a thought ..lower the pressure so you can spend thousands of dollars on spintron testing.......what a concept
