X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 05 Nov 2007 09:09:39 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-galgo.atl.sa.earthlink.net ([209.86.89.61] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2456212 for lml@lancaironline.net; Mon, 05 Nov 2007 08:54:36 -0500 Received-SPF: neutral receiver=logan.com; client-ip=209.86.89.61; envelope-from=mnewman@dragonnorth.com Received: from [70.91.142.49] (helo=PCmike2) by elasmtp-galgo.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1Ip2Os-0007TN-Ek; Mon, 05 Nov 2007 08:53:58 -0500 From: "Michael Newman" X-Original-To: , References: Subject: RE: [LML] Re: Speeds at Altitude X-Original-Date: Mon, 5 Nov 2007 08:54:41 -0500 Organization: Dragonnorth Group X-Original-Message-ID: <010d01c81fb3$6a989250$0601a8c0@sentira.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_010E_01C81F89.81C28A50" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 In-Reply-To: Thread-Index: AcgfsUtAu64H3TtaR+O4ZmhVIYnWeAAAWpEA X-ELNK-Trace: 4981850a937e3365551c28c27865cf0a239a348a220c2609eccabf252a6a54b34e1c614d8d6575cfa7ce0e8f8d31aa3f350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.91.142.49 This is a multi-part message in MIME format. ------=_NextPart_000_010E_01C81F89.81C28A50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit At what fuel flows and speeds? I use 2500 and 31 inches about 27 GPH. It was my understanding that continuous operation at 38 inches was not recommended. I have not tried to climb at that setup, it might run cooler. My baffles and fuel flow have been very carefully looked at. Working on the baffles made a definite improvement. _____ From: VTAILJEFF@aol.com [mailto:VTAILJEFF@aol.com] Sent: Sunday, November 04, 2007 9:28 PM To: lml@lancaironline.net Subject: Re: [LML] Re: Speeds at Altitude In a message dated 11/3/2007 9:06:01 P.M. Central Daylight Time, mnewman@dragonnorth.com writes: I climb at 30 to 31 inches 2500 rpm to get to FL 250. I manage my airspeed to maintain CHTs at 400 degrees (or less) I can only climb 800 to 1000 fpm continuously at about 160 to 180 kts depending on temperature. I can climb faster for short periods. The power is there, with better engine cooling faster climb at lower airspeeds would be possible. I suspect your engine fuel flow and baffling are not set up correctly. You should be able to climb continuously to altitude at 38.5 inches and 2700 RPM (at WOT) and keep your cylinder heads below 380F. If not then you have some work to do. regards, Jeff ------=_NextPart_000_010E_01C81F89.81C28A50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

At what = fuel flows and=20 speeds?

I use 2500 = and 31 inches=20 about 27 GPH. It was my understanding that continuous = operation at 38=20 inches was not recommended. I have not tried to climb at that setup,=20 it might run cooler.

My baffles = and fuel flow=20 have been very carefully looked at. Working on the baffles made a = definite=20 improvement.

From: VTAILJEFF@aol.com = [mailto:VTAILJEFF@aol.com]=20
Sent: Sunday, November 04, 2007 9:28 PM
To:=20 lml@lancaironline.net
Subject: Re: [LML] Re: Speeds at=20 Altitude

In a message dated 11/3/2007 9:06:01 P.M. Central Daylight Time,=20 mnewman@dragonnorth.com writes:

I=20 climb at 30 to 31 inches 2500 rpm to get to FL 250. I manage my = airspeed to=20 maintain CHTs at 400 degrees (or less) I can only climb 800 to 1000 = fpm=20 continuously at about 160 to 180 kts depending on temperature. I can = climb=20 faster for short periods. The power is there, with better engine = cooling=20 faster climb at lower airspeeds would be=20 possible.

I suspect your engine fuel flow and baffling are not set up = correctly. You=20 should be able to climb continuously to altitude at 38.5 inches and 2700 = RPM (at=20 WOT) and keep your cylinder heads below 380F. If not then you have some = work to=20 do.

regards,

Jeff

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