Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5.2) with ESMTP id 1034625 for rob@logan.com; Fri, 01 Feb 2002 06:14:53 -0500 Received: from rook.innercite.com ([158.222.5.8]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Thu, 31 Jan 2002 23:29:41 -0500 Received: from colwell (host-229-123.dialup.innercite.com [158.222.229.123] (may be forged)) by rook.innercite.com (8.11.6/8.11.6) with SMTP id g114VVc25257; Thu, 31 Jan 2002 20:31:31 -0800 Message-ID: <00cb01c1aad9$a9bac7a0$f3e2de9e@colwell> From: "Steve & Claudette Colwell" To: Cc: "George Braly" References: <200201310904_MC3-F011-F975@compuserve.com> <004101c1aa8d$7057d6c0$57499842@mshome.net> Subject: Re: Electronic ignition Date: Thu, 31 Jan 2002 20:33:20 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I have been told running one electronic ignition and one magneto has a problem . The aftermarket electronic ignition, on a non turbo installation, has more timing advance to optimize both power and economy by lighting the mixture earlier as altitude is increased. The problem is, the later timed mag tries to fire as the pressure is rising from the earlier firing of the electronic ignition. This pressure rise will prevent the plug from firing and cause the coil in the mag to short. (Most of us have seen the old spark plug testers that would fail the wide gapped or dirty plug as the pressure was increased) The coil on the mag dies about 300 hours after the electronic ignition is installed. I have heard this from several people who experienced it. I also understand there is a significant improvement in dual electronic ignitions since the combustion chambers of our dual plug aircraft engines were designed to have both plugs fire at the same time. Since I plan an all electric airplane (no vacuum system), a dual buss/alternator/battery will be my redundancy. I am interested in the Prism Electronic Ignition, maybe George Braly will give us some details. Is the advance curve tailored to the leaning procedure for GAMI injectors? Steve Colwell Legacy 2K Placerville,CA (530) 621-3408 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://members.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please remember that purchases from the Builders' Bookstore assist with the management of the LML. Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>