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snowman snowman is offline
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Join Date: Feb 2003
Location: So California
Posts: 3,787
I suggest forgetting all the numbers at 0.4" and higher. THe really important numbers are at 0.1" , 0.2" and 0.3", thats where ALL the action is at, ie area under the curve. Getting 10% better at 0.1" lift is much better than any improvement at 0.45" lift. The reason is that the flow at 0.1" and higher is for much much much longer time than the flow at 0.45". And furthermore Porsche heads flow very well at low lifts, ie they are in need of duration, not more lift. All of the Porsche heads I have flowed indicated that the HP limitations of the engine are NOT related to head flow, but to rpm limitations.
Old 04-17-2005, 10:34 PM
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