Return-Path: Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 819544 for flyrotary@lancaironline.net; Thu, 24 Mar 2005 20:58:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.64; envelope-from=sqpilot@bellsouth.net Received: from paul ([216.78.114.87]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with SMTP id <20050325015726.OQIA1995.imf16aec.mail.bellsouth.net@paul>; Thu, 24 Mar 2005 20:57:26 -0500 Message-ID: <006801c53164$20e61f50$57724ed8@paul> From: To: "fly rotary" , "ACRE" Subject: a better running rotary Date: Fri, 25 Mar 2005 11:57:35 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0065_01C53131.D5743B10" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0065_01C53131.D5743B10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I went out to the airport today and ran the engine up, did a quick full = power runup and then went to the runway and took off and landed (back on = the same runway). Never ran better...matter of fact never ran this = well. What, might we ask made the dramatic improvement? I call it = reverse stupidity. A couple of days ago, I went to a page on my = MicroTech ECU handheld programmer that I had not previously viewed. It = showed rpm and water temp. My engine monitor showed a water temp of 160 = degrees F. The ECU monitor showed a water temp of -24 degrees C. Not = even close. To make a long story short, I had wired two monitors to one = water temp sending unit. After running the engine, the ECU water temp = climbed from -24C all the way up to -12C. I disconnected the wire that = went to the engine monitor, and the ECU water temp immediately went up = to 60C. Since the ECU varies fuel and timing based on water = temperatures, it was unable to do it's job correctly with inaccurate = water temp inputs. The cold start enrichment also was not functioning, = as the engine map's were supposed to start reducing mixture levels after = reaching 50 degrees C. It never saw those numbers, so it could not = function properly. Now, with the proper water temp inputs, it runs = GREAT !!! Cold start, warm up, idle through WOT is smooth as silk. To = think of all the time I wasted trying to program injector open times, = etc on an ECU that was receiving improper water temp information. I should have known better than to connect two monitors to one = sending unit, but I did it anyway. Just hoping others can learn from my = mistake instead of making their own. Just when I had a custom made mounting plate made for the HA-6 = carburetor I just purchased, the thing has to go and run like a swiss = watch. Murphy wins again. Take care. Paul Conner ------=_NextPart_000_0065_01C53131.D5743B10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I went out to the airport today and ran = the engine=20 up, did a quick full power runup and then went to the runway and took = off and=20 landed (back on the same runway). Never ran better...matter of = fact never=20 ran this well. What, might we ask made the dramatic = improvement? I=20 call it reverse stupidity. A couple of days ago, I went to a page = on my=20 MicroTech ECU handheld programmer that I had not previously viewed. It = showed=20 rpm and water temp. My engine monitor showed a water temp of 160 = degrees=20 F. The ECU monitor showed a water temp of -24 degrees C. Not even = close.=20 To make a long story short, I had wired two monitors to one water temp = sending=20 unit. After running the engine, the ECU water temp climbed from -24C all = the way=20 up to -12C. I disconnected the wire that went to the engine = monitor, and=20 the ECU water temp immediately went up to 60C. Since the ECU = varies fuel=20 and timing based on water temperatures, it was unable to do it's = job=20 correctly with inaccurate water temp inputs. The cold start = enrichment=20 also was not functioning, as the engine map's were supposed to start = reducing=20 mixture levels after reaching 50 degrees C. It never saw those = numbers, so=20 it could not function properly. Now, with the proper water temp = inputs, it=20 runs GREAT !!! Cold start, warm up, idle through WOT is smooth as=20 silk. To think of all the time I wasted trying to program injector = open=20 times, etc on an ECU that was receiving improper water temp=20 information.

I should have = known better=20 than to connect two monitors to one sending unit, but I did it anyway. = Just=20 hoping others can learn from my mistake instead of making their=20 own.

Just = when I had a=20 custom made mounting plate made for the HA-6 carburetor I just = purchased, the=20 thing has to go and run like a swiss watch. Murphy wins = again. Take=20 care. Paul Conner

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