X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 28 May 2007 21:17:59 -0400 Message-ID: X-Original-Return-Path: Received: from [64.12.137.3] (HELO imo-m22.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2071883 for lml@lancaironline.net; Mon, 28 May 2007 20:39:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.3; envelope-from=PTACKABURY@aol.com Received: from PTACKABURY@aol.com by imo-m22.mx.aol.com (mail_out_v38_r9.2.) id q.c69.138b6099 (40523) for ; Mon, 28 May 2007 20:38:54 -0400 (EDT) From: PTACKABURY@aol.com X-Original-Message-ID: X-Original-Date: Mon, 28 May 2007 20:38:54 EDT Subject: Re: [LML] Re: TSIO 550 LOP X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1180399134" X-Mailer: 9.0 Security Edition for Windows sub 5365 X-Spam-Flag: NO -------------------------------1180399134 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 5/28/2007 5:41:08 A.M. Pacific Daylight Time, colyncase@earthlink.net writes: The real reason is that you can run at a higher power setting without crossing your tit limit because the exhaust temp is lower on an 8.5:1 engine at the same power setting. I'm having a hard time on my 7.5:1 getting up to 17+ gph LOP at fl260 without blowing through my tit limit, for example. The egt is lower and the engine is more efficient with 8.5 CR pistons. Again I ask for data. If I am indeed experiencing 5% better performance at 17.5 gph than the norm I do think that is significant and wound like to investigate the reasons further if anyone elso on the list is willing to share data. As far as FL 260 is concerned I think I would get a nose bleed way up there so I cant provide any help--other than to suggest you descend before your blood boils. paul ************************************** See what's free at http://www.aol.com. -------------------------------1180399134 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 5/28/2007 5:41:08 A.M. Pacific Daylight Time,=20 colyncase@earthlink.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
The real reason is that you can run at a higher power setting without= =20 crossing your tit limit because the exhaust temp is lower on an 8.5:1 engi= ne=20 at the same power setting.
I'm having a hard time on my 7.5:1 getting up to 17+ gph LOP at fl260= =20 without blowing through my tit limit, for=20 example.
The egt is lower and the engine is more efficient with 8.5 CR=20 pistons.  Again I ask for data.  If I am indeed experiencing 5% be= tter=20 performance at 17.5 gph than the norm I do think that is significant and wou= nd=20 like to investigate the reasons further if anyone elso on the list is willin= g to=20 share data.  As far as FL 260 is concerned I think I would get a nose b= leed=20 way up there so I cant provide any help--other than to suggest you descend=20 before your blood boils.
paul



See what's free=20= at AOL.com.
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