Return-Path: Received: from imo-d05.mx.aol.com ([205.188.157.37] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 618814 for flyrotary@lancaironline.net; Sun, 23 Jan 2005 20:54:01 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.37; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-d05.mx.aol.com (mail_out_v37_r3.8.) id q.ac.6b565c46 (18403) for ; Sun, 23 Jan 2005 20:53:19 -0500 (EST) From: WRJJRS@aol.com Message-ID: Date: Sun, 23 Jan 2005 20:53:19 EST Subject: Re: [FlyRotary] Re: Ah Ha! Pressure Regulator Problem? To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_ac.6b565c46.2f25af0f_boundary" X-Mailer: 8.0 for Windows sub 6036 --part1_ac.6b565c46.2f25af0f_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 1/23/2005 5:05:26 AM Pacific Standard Time, eanderson@carolina.rr.com writes: > Hey Bill, > > I appreciate all the help I can get - different insight/experience is what > makes sharing information on this list so useful. It certainly seems that the > return capability of this regulator could be less than required to properly > regulate pressure referenced to manifold. I had assumed that since MSD > advertised their High pressure pump and regulator together that they would work > together. And the regulator may indeed increase fuel pressure/flow if > presented with boost pressure (above ambient) - just don't know since I don't have a > turbo. > > Thanks again > > Ed A > Ed, There are two parts to this equation. First: Does the regulator flow enough by itself. Second: and almost as important is the plumbing itself. Some people will use very small return plumbing. That plumbing can restrict flow, keeping the fuel presure high. Another thing for the new people to remember, be sure your return switches with your tank valve. There have been accidents where the return flow wasn't switched and the tank ran dry. (Always on final of course) Bill Jepson --part1_ac.6b565c46.2f25af0f_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable In a message dated 1/23/2005 5:05:2= 6 AM Pacific Standard Time, eanderson@carolina.rr.com writes:

Hey Bill,
 
I appreciate all the help I can get - different insight/experience is what=20= makes sharing information on this list so useful.  It certainly seems t= hat the return capability of this regulator could be less than required to p= roperly regulate pressure referenced to manifold.  I had assumed that s= ince MSD advertised their High pressure pump and regulator together that the= y would work together.  And the regulator may indeed increase fuel pres= sure/flow if presented with boost pressure (above ambient) - just don't know= since I don't have a turbo.
 
Thanks again
 
Ed A


Ed, There are two parts to this equation. First: Does the regulator flow eno= ugh by itself. Second: and almost as important is the plumbing itself. Some=20= people will use very small return plumbing. That plumbing can restrict flow,= keeping the fuel presure high. Another thing for the new people to remember= , be sure your return switches with your tank valve. There have been acciden= ts where the return flow wasn't switched and the tank ran dry. (Always on fi= nal of course)
Bill Jepson --part1_ac.6b565c46.2f25af0f_boundary--