X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 14 Jun 2007 01:26:22 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d21.mx.aol.com ([205.188.144.207] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2101193 for lml@lancaironline.net; Wed, 13 Jun 2007 22:29:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.207; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d21.mx.aol.com (mail_out_v38_r9.2.) id q.d41.b11539b (58435) for ; Wed, 13 Jun 2007 22:28:53 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Wed, 13 Jun 2007 22:28:53 EDT Subject: Boost switch X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1181788133" X-Mailer: 9.0 Security Edition for Windows sub 5365 X-Spam-Flag: NO -------------------------------1181788133 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 6/13/2007 9:10:41 P.M. Central Daylight Time, VTAILJEFF@aol.com writes: In flight today I experimented with "high" boost switch position. It adds about 4-5 gph to the fuel flow-- and miraculously the engine did not quit! So, for all those folks feverishly redesigning the TCM fuel system -- relax and take a few deep breaths and have another beer. Jeff, Fabulous! On my Lyc IO system, If I add the boost pump it raises the pressure 1-2 psi above the engine pump standard (25-26 psi) - there is no change in the fuel flow unless the low pressure light comes on (<12 psi, fluctuating fuel flow, no smiley faces on the annunciators) and the engine pump is cavitating from having the vapors. There is no return line, thus hot starts require being at one with the engine (yes, machines are affected by transcendental meditation and atonal chants using syllable subsets from _$&^@^&%&^$_ (mailto:$&^@^&&^$) ). I am proud that my pressure relief regulator is doing its job in its own secret way. Grayhawk ************************************** See what's free at http://www.aol.com. -------------------------------1181788133 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 6/13/2007 9:10:41 P.M. Central Daylight Time,=20 VTAILJEFF@aol.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
In flight today I experimented with "high" boost switch position= . It=20 adds about 4-5 gph to the fuel flow-- and miraculously the engine did not=20 quit! So, for all those folks feverishly redesigning the TCM fuel system -= -=20 relax and take a few deep breaths and have another=20 beer.
Jeff,
 
Fabulous!  On my Lyc IO system, If I add the boost pump it raises=20= the=20 pressure 1-2 psi above the engine pump standard (25-26 psi) - th= ere=20 is no change in the fuel flow unless the low pressure light comes on (<12= =20 psi, fluctuating fuel flow, no smiley faces on the annunciators) and the eng= ine=20 pump is cavitating from having the vapors. 
 
There is no return line, thus hot starts require being at one with the=20 engine (yes, machines are affected by transcendental meditation and atonal=20 chants using syllable subsets from $&^@^&%&^$). 
 
I am proud that my pressure relief regulator is doing its job in i= ts=20 own secret way.
 
Grayhawk
 



See what's fre= e at AOL.com.=20=
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