Reply to "Size of Air Filter"

dave2811Member

Here is a little tidbit I found on K&N's website. A formula on a recommended filter size:

A = effective filtering area
CID = cubic inch displacement
RPM = revolutions per minuteat maximum power

Using this calculation, a 351 at 6000 RPM requires 101 sq inches of filter area. They also give a method for calculating filter areas. See:
http://www.knfilters.com/filter_facts.htm

11/23/164:02 PM

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