X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [206.46.252.48] (HELO vms048pub.verizon.net) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 930917 for flyrotary@lancaironline.net; Tue, 03 May 2005 09:33:28 -0400 Received: from verizon.net ([71.99.154.39]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IFX00GY51NHU910@vms048.mailsrvcs.net> for flyrotary@lancaironline.net; Tue, 03 May 2005 08:33:17 -0500 (CDT) Date: Tue, 03 May 2005 09:33:15 -0400 From: Finn Lassen Subject: Re: [FlyRotary] Re: Home again & Colorado trip & Ed's new engine In-reply-to: To: Rotary motors in aircraft Message-id: <42777D9B.2060700@verizon.net> MIME-version: 1.0 Content-type: multipart/alternative; boundary=------------080409050200030302030207 X-Accept-Language: en-us, en References: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) This is a multi-part message in MIME format. --------------080409050200030302030207 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Remember that ED is using 100LL. Would that make a difference? Finn Lehanover@aol.com wrote: > In a message dated 05/03/2005 08:17 Central Daylight Time, > lors01@msn.com writes: > > I have to wonder if there was something wrong with the old engine > or setup. Did you ever play with the ignition timing before? > That is about the only thing that can make a basically healthy > engine give such higher fuel burn. (retarded ignition timing). > Anyway, glad you found the extra efficiency & power. Even with a > bit more weight & drag, your -6 should not have been that much > different than my -4. > > Tracy > > I would expect ignition timing to be advanced right through 30-35 > degrees with LOP operation. > It would appear as very high octane fuel to the rotary. If you notice > EGT go up slightly with leaning, that is the cause. > > Lynn E. Hanover --------------080409050200030302030207 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Remember that ED is using 100LL. Would that make a difference?

Finn

Lehanover@aol.com wrote:

In a message dated 05/03/2005 08:17 Central Daylight Time, lors01@msn.com writes:

I have to wonder if there was something wrong with the old engine or setup. Did you ever play with the ignition timing before? That is about the only thing that can make a basically healthy engine give such higher fuel burn. (retarded ignition timing). Anyway, glad you found the extra efficiency & power. Even with a bit more weight & drag, your -6 should not have been that much different than my -4.

Tracy

I would expect ignition timing to be advanced right through 30-35 degrees with LOP operation.

It would appear as very high octane fuel to the rotary. If you notice EGT go up slightly with leaning, that is the cause.

Lynn E. Hanover

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