EFI Filter Air Flow Calc?

[Tom Wells]

Here's K&N's calculator for air filter size (square inches):

http://www.knfilters.com/filter_facts.htm#SELECT

I've often wondered whether folks who worry about manifolds, ports, induction systems etc. sometimes consider a small hood scoop more important than air flow through a filter. Ditto on the power loss experienced between the engine dyno and the chassis dyno.

My car has a bit of an oversized scoop to allow enough filter area. Chassis dyno results are all I have, so no real comparison is available - probably I do have enough air filter since I did follow K&N's guidance.

Hope this helps,

Tom