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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 12:37:17 -0500
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Posted for John Huft <aflyer@lazy8.net>:

  K&N has a design guide on their website for filter area required for a
minimal pressure drop.
  
  Area=(displacement X max RPM) / 20,839     I am not sure where they came up
with that constant :o)
  
  This yields a required filter area for a 360 cu. in. engine at 2700 rpm of
46.6 sq. in.
  
  
  John