X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 17 Oct 2008 03:12:21 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-kukur.atl.sa.earthlink.net ([209.86.89.65] verified) by logan.com (CommuniGate Pro SMTP 5.2.8) with ESMTP id 3216615 for lml@lancaironline.net; Fri, 17 Oct 2008 02:48:25 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.65; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=A+OXO0PO7/VcRMoqNaanPlrdOt4OPgJaGfljqWCETdISkt1RpnAM5Y8GavXp2OZ5; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [12.111.91.66] (helo=ccaselt3) by elasmtp-kukur.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1Kqj7k-00056y-PS for lml@lancaironline.net; Fri, 17 Oct 2008 02:47:48 -0400 X-Original-Message-ID: <01bc01c93024$44aa09c0$710812ac@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: IO-550N take off fuel flow X-Original-Date: Thu, 16 Oct 2008 23:47:47 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01B9_01C92FE9.97E236C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9402dce84e96fc543ae566448c5c4a095d2350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 12.111.91.66 This is a multi-part message in MIME format. ------=_NextPart_000_01B9_01C92FE9.97E236C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageMine is at 43.8gph. Adding fuel moves theta-peak-pressure = further beyond top dead center and lowers peak pressure which reduces = the stress on the engine. With exhaust tunnel extensions I can climb at 38"/2700rpm @380dF CHT's @ = 140 knots. Dropping back to 32"/2500rpm CHT's are in the 350's. Wish I had Fred's = cowl flaps. 38gph is too low. ------=_NextPart_000_01B9_01C92FE9.97E236C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Mine is at 43.8gph.  Adding fuel = moves=20 theta-peak-pressure further beyond top dead center and lowers peak = pressure=20 which reduces the stress on the engine.
With exhaust tunnel extensions I can = climb at=20 38"/2700rpm @380dF CHT's @ 140 knots.
Dropping back to 32"/2500rpm CHT's are = in the=20 350's.   Wish I had Fred's cowl flaps.
 
38gph is too = low.
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