Return-Path: Received: from sccrmhc12.comcast.net ([204.127.202.56] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 617360 for flyrotary@lancaironline.net; Sat, 22 Jan 2005 10:22:27 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.202.56; envelope-from=jesse@jessfarr.com Received: from office5 (pcp04959909pcs.midval01.tn.comcast.net[68.59.199.44]) by comcast.net (sccrmhc12) with SMTP id <2005012215214701200g353ie>; Sat, 22 Jan 2005 15:21:57 +0000 Message-ID: <05fe01c50096$044851f0$057ba8c0@farr.com> From: "jesse farr" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Manifold-Reference Fuel Pressure was [FlyRotary]Re: Fuel Injector Sizing Date: Sat, 22 Jan 2005 10:21:16 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_05FB_01C5006C.1B39ADC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_05FB_01C5006C.1B39ADC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: Fuel Injector SizingAin't that what they are = supposed to do ? Keep it steady as outside pressure diminishes ? = Doesn't your gauge suffer from the same diminishing outside pressure as = altitude increases; therefore, wouldn't they stay constant, if working = properly ? 'Splain to us simple minded, of which I may be the only one. jofarr ----- Original Message ----- From: Ed Anderson=20 I agree with your statement, Buly. Ideally if the pressure = differential between fuel rail and manifold is kept constant by use of a = manifold reference then that would imply that the fuel pressure should = vary to compensate for different manifold pressure. However, my fuel = pressure is rock steady and this is the second manifold-referenced fuel = pressure regulator I have used with no difference. So either my = manifold-reference fuel pressure regulator isn't or I am = misunderstanding what they are suppose to do. But, that is my experience. How about others of you flying what is = your experience with fuel pressure??? Does it vary? The variance = corresponds to what?? ------=_NextPart_000_05FB_01C5006C.1B39ADC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: Fuel Injector Sizing
Ain't that what they are supposed to do = ? =20 Keep it steady as outside pressure diminishes ? Doesn't your gauge = suffer from=20 the same diminishing outside pressure as altitude increases; therefore, = wouldn't=20 they stay constant, if working properly ? 'Splain to us simple minded, = of which=20 I may be the only one.
jofarr
----- Original Message ----- = From: Ed=20 Anderson
 
I agree with your statement, = Buly.  Ideally=20 if the pressure differential between fuel rail and manifold is = kept=20 constant by use of a manifold reference then that would imply that the = fuel=20 pressure should vary to compensate for different manifold = pressure. =20 However, my fuel pressure is rock steady and this is the second=20 manifold-referenced fuel pressure regulator I have used with no=20 difference.  So either my manifold-reference fuel pressure = regulator=20 isn't or I am misunderstanding what they are suppose to = do.
 
But, that is my experience.  How = about=20 others of you flying what is your experience with fuel = pressure???  Does=20 it vary? The variance corresponds to what??
 
 
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