X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 02 Jun 2008 15:49:44 -0400 Message-ID: X-Original-Return-Path: Received: from smtp123.sbc.mail.sp1.yahoo.com ([69.147.64.96] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with SMTP id 2948963 for lml@lancaironline.net; Sun, 01 Jun 2008 23:04:11 -0400 Received: (qmail 29564 invoked from network); 2 Jun 2008 03:04:12 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=yEZgrlwHrKIxuTloJhazs12aJ6q4HcAhaoxbJ8X9ks8k2HAmwnnXiJOU5vfJByR4ojffckcfrSN2EhhJ2IRKrd9jED0VQfGLTd3myjyVtxN3mXq3qIGPi7wx6Ovi3Ld1BMWIyickfYbb/CgUoUjGT1+0JMWdHBUWQ0aduulMQcw= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@75.15.117.203 with login) by smtp123.sbc.mail.sp1.yahoo.com with SMTP; 2 Jun 2008 03:04:11 -0000 X-YMail-OSG: Tju3QoYVM1lXJqkh76l8fX09sE1VYSfGqMUEFdK3Ru5ArohXtIQ6uf94pyA1q6.SCIWZVcj9cA9G3RupMCjlg._Gkk_.XWN3RaFuaO5mroSr2vrJWRPYIqHlm62t0MlcM7E- X-Yahoo-Newman-Property: ymail-3 X-Original-Message-ID: <000e01c8c45d$5a6ee9c0$cb750f4b@Computerroom> From: "Paul Lipps" X-Original-To: "Marv Kaye" Subject: Sparking plugs, corrected, expanded X-Original-Date: Sun, 1 Jun 2008 20:04:19 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C8C422.AD47B8B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C8C422.AD47B8B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I spoke with Klaus of LSE about this plug thingy, and he said he did = research on this with instrumented plugs around 1989 which resulted in = recommending Automotive plugs with the right heatrange in place of the = Aircraft plugs he recommended up to then. He specifically protested the = use of the Champion 386 plugs sold by another vendor in an article in = Sport Aviation about that time. He says that a plug in the proper heat = range will have two shades of tan on the insulator with the darker side = near the electrode. if it is no change, the heat range is too hot or too = cold. Cracked insulators on a plug is a sign of detonation not = temperature. He reminded me that those planes racing at Reno with LSE = ignition and recommended automotive plugs have never had a cylinder go = bad, but several planes with aircraft plugs and Magnetos have. He also = said that those fellows running full-out at 250 mph TAS or more on the = 1.5 hr race to Oshkosh at 2000' have 2" MAP boost and are running at or = above 100% power the whole way! To his knowledge none of those racing = who have LSE EI have had a problem with detonation or pre-ignition. = However, there is always a way to over- advance the timing, regardless = of the ignition device used. ------=_NextPart_000_000B_01C8C422.AD47B8B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

 
I spoke with Klaus of LSE about this plug = thingy, and he=20 said he did research on this with instrumented plugs around 1989 which = resulted in recommending Automotive plugs with the right heatrange in = place of=20 the Aircraft plugs he recommended up to then. He specifically = protested the=20 use of the Champion 386 plugs sold by another vendor  in an = article in=20 Sport Aviation about that time. He says that a plug in the proper heat = range=20 will have two shades of tan on the insulator with the darker side near = the=20 electrode. if it is no change, the heat range is too hot or too cold. = Cracked=20 insulators on a plug is a sign of detonation not temperature. He = reminded me=20 that those planes racing at Reno with LSE ignition and recommended = automotive=20 plugs have never had a cylinder go bad, but several planes with = aircraft plugs=20 and Magnetos have. He also said that those fellows running full-out at = 250 mph=20 TAS or more on the 1.5 hr race to Oshkosh at 2000'  have 2" = MAP=20 boost and are running at or above 100% power the whole way! To his = knowledge=20 none of those racing who have LSE EI have had a problem with = detonation or=20 pre-ignition. However, there is always a way to over- advance the = timing,=20 regardless of the ignition device=20 used.

------=_NextPart_000_000B_01C8C422.AD47B8B0--