X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imo-m26.mx.aol.com ([64.12.137.7] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2040126 for flyrotary@lancaironline.net; Sat, 12 May 2007 15:43:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.7; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m26.mx.aol.com (mail_out_v38_r9.2.) id q.d2e.6140636 (30738) for ; Sat, 12 May 2007 15:42:47 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Sat, 12 May 2007 15:42:47 EDT Subject: Re: [FlyRotary] Re: EC2 smoke question To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1178998967" X-Mailer: 9.0 Security Edition for Windows sub 5366 X-Spam-Flag: NO -------------------------------1178998967 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 5/12/2007 12:10:16 P.M. Eastern Daylight Time, unicorn@gdsys.net writes: Lynn, it is a P-Port, which certainly adds to the MAP issue. I am seeing that on the single rotor when the MAP connection is right at the rotor housing, even with a 40thou hole. All I do is showing it on a boost gauge, it is unreadable below 1500RPM. Fortunately, it is not an issue with a carb. FWIW. Richard Sohn N2071U Perhaps a .020" hole in both ends of the gage line. You have it sitting on a resonant at idle and the gage will go away after just a bit. Like putting a fuel pressure gage too close to the outlet of a sliding vane fuel pump. It just shakes to pieces. With the good breathing required for good power, there will be no manifold pressure (vacuum) until the RPM is close to cruise, And then only if cruise is at a bit less than wide open throttle. Maybe the air filter will provide enough drag to get a reading. In fuel injected systems, the lack of a choke, or venturi just adds to the problem. Lynn E. Hanover ************************************** See what's free at http://www.aol.com. -------------------------------1178998967 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 5/12/2007 12:10:16 P.M. Eastern Daylight Time,=20 unicorn@gdsys.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Lynn,
 
it is a P-Port, which certainly adds to the MAP issue.= I am=20 seeing that on the single rotor when the MAP connection is right at the ro= tor=20 housing, even with a 40thou hole. All I do is showing it on a boost gauge,= it=20 is unreadable below 1500RPM.
Fortunately, it is not an issue with a carb.
FWIW.
 
Richard Sohn
N2071U
Perhaps a .020" hole in both ends of the gage line. You have it sitting= on=20 a resonant at idle and the gage will go away after just a bit. Like putting=20= a=20 fuel pressure gage too close to the outlet of a sliding vane fuel pump. It j= ust=20 shakes to pieces.
 
With the good breathing required for good power, there will be no manif= old=20 pressure (vacuum) until the RPM is close to cruise, And then only if cruise=20= is=20 at a bit less than wide open throttle. Maybe the air filter will provide eno= ugh=20 drag to get a reading. In fuel injected systems, the lack of a choke, or ven= turi=20 just adds to the problem.
 
Lynn E. Hanover



See w= hat's free at AOL.= com.
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