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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Re: Air filters
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Date: Wed, 14 Dec 2005 07:51:31 -0500
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Posted for "Bruce Gray" <Bruce@glasair.org>:

  Your engine is an air pump.
  
  Displacement times RPM = Cubic inches per minute divided by 1,728 (Cubic
  inches in a cubic foot) = cubic feet per minute of air needed (add a fudge
  factor of say 20 percent to allow for filter blockage by dirt or ice.)
  
  Bruce
  www.glasair.org