Mailing List flyrotary@lancaironline.net Message #21340
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Home again & Colorado trip & Ed's new engine
Date: Tue, 3 May 2005 21:30:41 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Cc: Tracy Crook <lors01@msn.com>, Laura Crook <laura@rotaryaviation.com>
Hey Tracy,
 
Did you get the broken seals I sent yet?  Probably no time to look at them with the trip and all - so go ahead keep us in suspense (at least me) for another two - three weeks {:>)
 
Ed
----- Original Message -----
Sent: Tuesday, May 03, 2005 9:00 PM
Subject: [FlyRotary] Re: Home again & Colorado trip & Ed's new engine

Good point.  High octane burns slower so more advance is required, all else being equal.
 
Tracy
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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