[Steve C.]

"It's possible to provide inlet passages that may show increased airflow on a test bench but reduce net torque from a lack of in-use flow velocity. It is at this point (typically based on over-sized passages) that more flow doesn't produce more power. There's simply insufficient velocity to build V.E. and create increased torque."
Jim McFarland

Noteworthy, If anyone can get access to back issues- In the Oct & Nov 2000 issues of Circle Track Magazine Jim McFarland wrote a series titled "Basics for getting a head". He discussed port sizing in part 1 of this series.

Tid bits here:

https://books.google.com/books?id=9J...arland&f=false


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