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Old 04-12-2013, 01:51 PM
Chilibit Chilibit is offline
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Cobra Make, Engine: Superformance, Roush 402R, Kentucky Cobra Club
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I was with you right up until the last phrase:

"and you can shove more in with respect to time."

Does this not violate the "flows the same" premise?

I agree with the 'perfect scenario.'



Quote:
Originally Posted by blykins View Post
Port area isnt constant....

But think of it this way: air and fuel has momentum. It takes time to get it moving. Guys that port their stuff at home have a tendency to hog the ports out as big as they can, thinking a big port makes more power. In reality, a smaller port that flows the same as a big port will most likely perform better because the velocity of the charge will be higher and you can shove more in with respect to time.

Perfect scenario is a port that flows a lot, but is efficient enough to have high velocity as well.
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