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AlfonsoR AlfonsoR is offline
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Join Date: Apr 2010
Location: Houston, Tx
Posts: 951
How is the shop determining 80psi. Do they do 5 cranks or do they just turn it until it levels off?

What should it be with 8:1 and 3.2 cams? If the CR is really 8:1, then I'm calculating it should be right about 100 psi. (14.69 x 8) - 14.69 = 102.8 psig. This is purely a static calculation. If you have significant overlap, then that may explain why you're at 80. Also, how sure are you about stated CR, i.e. did you measure?
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Old 01-09-2012, 02:05 PM
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