Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 618874 for flyrotary@lancaironline.net; Sun, 23 Jan 2005 21:50:54 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=atlasyts@bellsouth.net Received: from [65.8.117.68] by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050124025023.OLE2378.imf23aec.mail.bellsouth.net@[65.8.117.68]> for ; Sun, 23 Jan 2005 21:50:23 -0500 User-Agent: Microsoft-Entourage/10.1.4.030702.0 Date: Sun, 23 Jan 2005 21:54:14 -0500 Subject: Re: [FlyRotary] Re: Ah Ha! Pressure Regulator Problem? From: Bulent Aliev To: Rotary motors in aircraft Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3189362057_3318087" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3189362057_3318087 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable On 1/23/05 8:53 PM, "WRJJRS@aol.com" wrote: > In a message dated 1/23/2005 5:05:26 AM Pacific Standard Time, > eanderson@carolina.rr.com writes: >=20 > Hey Bill, > =20 > I appreciate all the help I can get - different insight/experience is wha= t > makes sharing information on this list so useful. It certainly seems tha= t the > return capability of this regulator could be less than required to proper= ly > regulate pressure referenced to manifold. I had assumed that since MSD > advertised their High pressure pump and regulator together that they woul= d > work together. And the regulator may indeed increase fuel pressure/flow = if > presented with boost pressure (above ambient) - just don't know since I d= on't > have a turbo. > =20 > Thanks again > =20 > Ed A >=20 >=20 > 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 fl= ow, > keeping the fuel presure high. Another thing for the new people to rememb= er, > be sure your return switches with your tank valve. There have been accide= nts > where the return flow wasn't switched and the tank ran dry. (Always on fi= nal > of course) > Bill Jepson All my plumbing is 3/8=B2 ID aluminum tubing, hose and fittings. My fuel valv= e is 6 port that switches feed and return to the same tank simultaneously. On= e less thing to wary about. I know people have designed systems that rely on them remembering when and which switch to turn for proper fuel management. I=B9m not that sharp :) Buly --B_3189362057_3318087 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Re: [FlyRotary] Re: Ah Ha! Pressure Regulator Problem? On 1/23/05 8:53 PM, &qu= ot;WRJJRS@aol.com" <WRJJRS@aol.com> wrote:

In a message dated 1/23/2005 5:05:26 AM Pacific Standard Time, eanderson@ca= rolina.rr.com writes:

Hey Bill,
  
I appreciate all the help I ca= n get - different insight/experience is what makes sharing information on th= is list so useful.  It certainly seems that the return capability of th= is regulator could be less than required to properly regulate pressure refer= enced to manifold.  I had assumed that since MSD advertised their High = pressure pump and regulator together that they would work together.  An= d the regulator may indeed increase fuel pressure/flow if presented with boo= st 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 en= ough 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 remembe= r, be sure your return switches with your tank valve. There have been accide= nts where the return flow wasn't switched and the tank ran dry. (Always on f= inal of course)
Bill Jepson


All my plumbing is 3/8” ID aluminum tubing, hose and fittings. My fue= l valve is 6 port that switches feed and return to the same tank simultaneou= sly. One less thing to wary about. I know people have designed systems that = rely on them remembering when and which switch to turn for proper fuel manag= ement. I’m not that sharp :)
Buly --B_3189362057_3318087--