X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 19 May 2011 16:45:31 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-curtail.atl.sa.earthlink.net ([209.86.89.64] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4988764 for lml@lancaironline.net; Thu, 19 May 2011 13:29:23 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.64; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=UgC6IilP/zqMsFTbAXkkYhsb2ot8Mv21k2kAgOR9MDu6v+fkfMrCSbPpNsMCEdtn; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.194] (helo=[192.168.1.131]) by elasmtp-curtail.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1QN71j-0006JQ-FL for lml@lancaironline.net; Thu, 19 May 2011 13:28:47 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/alternative; boundary=Apple-Mail-326--1046071117 Subject: Re: [LML] L-IV Choice of Engine X-Original-Date: Thu, 19 May 2011 13:28:46 -0400 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <02FC37DE-7A4C-4164-89E7-6397C155808D@earthlink.net> X-Mailer: Apple Mail (2.1082) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940e5886659bf94b0f841e75c9c48df6360350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.194 --Apple-Mail-326--1046071117 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Nicholas, I hate it when people don't answer the questino I asked but I'm not = going to answer your question as posed. I don't actually know much = about enginair. I will editorialize that it takes a test program from hell PLUS many = thousand copies in the field to fully get through debugging just about = any significant piece of engineering. That's because to hit every = unique combination of circumstances that might kill you just takes a lot = of exposure.....if you look at the probabilities. =20 To say that something has a 95% chance of working only means that 5% of = the uses will result in a 100% failure. A 100% failure of an engine in = a L-IV has a very high correlation to death. Aircraft engines, technically, are nothing inspiring compared to the = latest auto technology. When you buy an aircraft engine, what you are really buying is a de = facto pretty good test program: hundreds of thousands of hours with all = the relevant combinations of things that happen in airplanes. Don't agonize. Get a real aircraft engine.....and keep at least one = magneto. One way to get a really good aircraft engine is to buy one that is near = TBO and have Barrett Performance Engines rebuild it.=20 Colyn On May 19, 2011, at 11:11 AM, Nicholas Paczkowski wrote: > I am ready to hang an engine on my L-IV project (not-pressurized) and = am agonizing over the choice of engine. I have a good grasp on the = problems with the Enginair V8 conversions a few years ago but is there = ANYONE out there who has successfully hung one of the GM LS V8 engines = on a Lancair IV (or Legacy). Alternatively I was hoping to find anyone = who has unsuccessfully done so and is willing to talk about it. > =20 > Thanks > =20 > =20 --Apple-Mail-326--1046071117 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Nicholas,

I hate it when people = don't answer the questino I asked but I'm not going to answer your = question as posed. I don't actually know much about = enginair.

I will editorialize that it takes a = test program from hell PLUS many thousand copies in the field to fully = get through debugging just about any significant piece of engineering. = That's because to hit every unique combination of circumstances = that might kill you just takes a lot of exposure.....if you look at the = probabilities.

To say that something has = a 95% chance of working only means that 5% of the uses will result in a = 100% failure. A 100% failure of an engine in a L-IV has a very = high correlation to death.

Aircraft engines, = technically, are nothing inspiring compared to the latest auto = technology.

When you buy an aircraft engine, what you are = really buying is a de facto pretty good test program: hundreds of = thousands of hours with all the relevant combinations of things that = happen in airplanes.

Don't agonize. Get a = real aircraft engine.....and keep at least one magneto.

One = way to get a really good aircraft engine is to buy one that is near TBO = and have Barrett Performance Engines rebuild = it.

Colyn

On May 19, 2011, at 11:11 AM, Nicholas Paczkowski wrote:

I am ready to hang an engine = on my L-IV project (not-pressurized) and am agonizing over the choice of = engine. I have a good grasp on the problems with the Enginair V8 = conversions a few years ago but is there ANYONE out there who has = successfully hung one of the GM LS V8 engines on a Lancair IV (or = Legacy). Alternatively I was hoping to find anyone who has = unsuccessfully done so and is willing to talk about = it.