whipple pulley
#2
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mine is a 3" and it gives me 5psi. Mine is the Bigblock and I am not sure if the crank pulley's are the same size as the small blocks. You can always call whipple and ask them. Every 1/8" smaller gives you 1 psi i think. So if they are the same, you would need a 2-5/8" pulley for 8psi.
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I have a 3.75" one on my single pulley setup and I get 11-12 PSI at WOT. Some of that may be backpressure from the Flowmaster cat-back, but a 4" pulley netted me 8-9 PSI, so the 1/8" = 1 lb equation seems to hold true.
#4
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Originally Posted by Linda
You can always call whipple and ask them.
Can anyone else confirm the 4" pulley for 8psi?
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