Mailing List flyrotary@lancaironline.net Message #37520
From: Bob White <rlwhite@comcast.net>
Subject: Re: [FlyRotary] Intake CFM air flow
Date: Thu, 31 May 2007 14:56:15 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Bill,

I used the K&N RR-2803 because it fit my throttle body and allowed air
in thru the sides and center.  I don't see anything on K&N's site that
tells me it's area, but it seemed to work OK.  I had it pointing
straight to the front.  It's 5.875" OD at the base, 5.25" OD at the top,
and 5" high and fits a 2.75" throttle body.

Bob W.

On Thu, 31 May 2007 16:16:32 -0400
Bill Bradburry <bbradburry@allvantage.com> wrote:

Does anybody know what the CFM intake air flow is on the rotary?  I am thinking about the size of air filter I would need.  For instance, what size K&N filter would I use?  I would like to provide ram air thru the filter.

I was considering the conical type filter, but it looks like the size of it may be a show stopper.  I am pretty limited in the space available for a filter and do not want to make too convoluted a path to the throttle body.  What is the best guess on the number of square inches of filter required?

Any help would be appreciated.

Thanks,
Bill B

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