X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [129.116.87.143] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 931856 for flyrotary@lancaironline.net; Wed, 18 Jan 2006 16:32:38 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.143; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C61C76.9993905C" Subject: RE: [FlyRotary] Re: LS1 Coil Failures Date: Wed, 18 Jan 2006 15:31:49 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E036D0A98@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: LS1 Coil Failures Thread-Index: AcYcdRorkfWUdMliQF+xV5WX4M4IXQAAVotw From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C61C76.9993905C Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Does anyone know if the MSD version of the LS1 coil is more reliable? =20 =20 Mark S. =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Wednesday, January 18, 2006 3:20 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: LS1 Coil Failures =20 Thanks for a second data point, Mark. =20 I strongly suspect that you are correct, we simply are driving coils designed for start/stop slow go automobiles rather than constant hour after hour of 6000+ rpm operations. =20 But, I suspect that excess heat is still the core of the problem whether under cowl heat or internal heat due to electrical power use at high rpms. =20 Ed ------_=_NextPart_001_01C61C76.9993905C Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Does anyone know if the MSD version = of the LS1 coil is more reliable?

Mark = S.

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Wednesday, January = 18, 2006 3:20 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = LS1 Coil Failures

Thanks for a second data point, = Mark.

I strongly suspect that you are correct, we simply = are driving coils designed for start/stop slow go automobiles rather than = constant hour after hour of 6000+ rpm operations.

But, I suspect that excess heat is still the = core of the problem whether under cowl heat or internal heat due to electrical = power use at high rpms.

------_=_NextPart_001_01C61C76.9993905C--