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Old 03-18-2009, 11:17 AM   #18
BigD
the misanthropist
 
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Join Date: May 2002
Location: a house
Posts: 6,158
Again please provide the math. I think my estimates were all pretty reasonable and I end up at a pressure ratio of over 1.9. You can't just pull out boost numbers out of thin air. 15PSI in an efficient DOHC head (if I remember correctly, I assumed .97 volumetric efficiency, which is pretty conservative) of a 3.2 at 7000 rpm at sea level is going to make a hell of a lot more than 400hp.
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