X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from sccrmhc13.comcast.net ([204.127.200.83] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2190370 for flyrotary@lancaironline.net; Fri, 20 Jul 2007 21:09:59 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.200.83; envelope-from=n3773@comcast.net Received: from rv8 (c-76-27-238-77.hsd1.or.comcast.net[76.27.238.77]) by comcast.net (sccrmhc13) with SMTP id <20070721010922013008qkgbe>; Sat, 21 Jul 2007 01:09:22 +0000 Message-ID: <00b301c7cb33$c22ce040$4dee1b4c@rv8> Reply-To: "kevin lane" From: "kevin lane" To: "flyrotary" Subject: carbs vs efi Date: Fri, 20 Jul 2007 18:09:10 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B0_01C7CAF9.12276E70" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_00B0_01C7CAF9.12276E70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have been surprised at the recent flurry of carb postings. I assumed = that everyone was doing EFI. having experienced total electrical = failure in march on a trip to the Bahamas I was thinking a lot about = that Neanderthal carb bolted under my O320 and the magnetos, all unaware = of what was going on in the radio, GPS, and nav lights departments. = the reality is that you don't want a reserve battery to get you to the = ground safely, you want to get to the Bahamas and back and THEN look = into what's wrong. my questions are "how much power/performance is lost with a carb, and = which carbs can do manual mixture?". is it stupid to ask if the = Lycoming carb could run a 13B? someone mentioned Harley carbs having a = good history of rough service. what about marvel/schebler? is this = question heresy? :-) isn't efi a bit of overkill for an engine that = basically runs at 100% power, 75% power and idle? scanning thru the = archives I see a lot of postings regarding mixture, mapping, abrupt = failures and such. does this complexity buy us 5%, 20%? the question = of turbo-charging seems to beg similar line of questioning. kevin ------=_NextPart_000_00B0_01C7CAF9.12276E70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I have been surprised at the recent = flurry of=20 carb postings. I assumed that everyone was doing EFI. having = experienced total electrical failure in march on a trip to the Bahamas I = was=20 thinking a lot about that Neanderthal carb bolted under my O320 and the=20 magnetos, all unaware of what was going on in the radio, GPS, and = nav=20 lights departments. the reality is that you don't want = a=20 reserve battery to get you to the ground safely, you want to get to the = Bahamas=20 and back and THEN look into what's wrong.

my questions are "how much = power/performance is=20 lost with a carb, and which carbs can do manual mixture?". is it = stupid to=20 ask if the Lycoming carb could run a 13B? someone mentioned Harley = carbs having a good history of rough service. what about = marvel/schebler? is this question heresy? :-) isn't efi a = bit of=20 overkill for an engine that basically runs at 100% power, 75% power and=20 idle? scanning thru the archives I see a lot of postings regarding = mixture, mapping, abrupt failures and such. does this complexity = buy us=20 5%, 20%? the question of turbo-charging seems to beg similar = line of=20 questioning. kevin

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