Mailing List flyrotary@lancaironline.net Message #58434
From: Bill Bradburry <bbradburry@bellsouth.net>
Subject: RE: [FlyRotary] Re: MAP drop
Date: Wed, 20 Jun 2012 23:13:03 -0400
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Ernest,

My filter gets pressure from the air entering the nostril.  I get about 0.5
inch manifold pressure above baro on takeoff.  No drop that I can see.

Bill B

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Wednesday, June 20, 2012 10:28 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: MAP drop

What I'm trying to get at is that I would expect there to be a pressure drop
in the MAP when the engine is sucking air
at 5100RPM.  I'm trying to figure out what that drop would normally be.

Mark Steitle wrote:
> Yes, my setup is N/A.  When running the air filter bypass I was running
> a n/a side port 20b.  Now I am running a n/a p-port 20b.
>
> I don't really follow your second question.  I would only open the
> bypass when flying above 3k agl so as to not suck in dirty air.  
>
>
> On Wed, Jun 20, 2012 at 8:31 PM, Ernest Christley <echristley@att.net
> <mailto:echristley@att.net>> wrote:
>
>
>     Are you running normally aspirated, Mark?  When you go WOT, is it
>     significantly below idle?
>
>     I'm trying to decide if my blower is doing anything positive.  At
>     WOT, 5100RPM, I'm getting 98% of what the barometer is
>     reading.

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