Reply to "Strip Dominator on stock displacement engine"

danieljonesMember

> The intake port of a 302 is 1.94 x 1.04. That's an area of 2.01.

and if that were the minimum port area of a 302 head, it would be
relevant but it's not. The minimum area is typically just under
the valve seat or at the pushrod pinch.

> You say 2.06 is correct for a 351c at 7,000rpm?

That is the minimum area to keep the Mach number under 0.6.
It is a minimum that assumes an ideal valve discharge. In
practice, the area needs to be somewhat larger (factored by
the valve discharge coefficient). An inefficient head can
have a discharge coefficient considerably below 1.

Dan Jones

5/28/127:51 PM

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