X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 950946 for flyrotary@lancaironline.net; Fri, 20 May 2005 09:58:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.66; envelope-from=sladerj@bellsouth.net Received: from ibm59aec.bellsouth.net ([65.2.89.207]) by imf18aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050520135806.VTSC2395.imf18aec.mail.bellsouth.net@ibm59aec.bellsouth.net> for ; Fri, 20 May 2005 09:58:06 -0400 Received: from JSLADE ([65.2.89.207]) by ibm59aec.bellsouth.net (InterMail vG.1.02.00.01 201-2136-104-101-20040929) with ESMTP id <20050520135805.LOIL8760.ibm59aec.bellsouth.net@JSLADE> for ; Fri, 20 May 2005 09:58:05 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: More MAP measurement questions Date: Fri, 20 May 2005 09:58:02 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01C55D22.6944B970" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0020_01C55D22.6944B970 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageHere's another question - having little knowledge in the area, I'm considering Tracy's ECU and the EM2. What are your appreciations of the products. Hi George, I've had horrendous problems getting the EM2/EC2 working. Much, if not all, of the problems have probably been to do with my wiring, not RTFM properly (ie grounding the wrong wire), not using shielded cable for everything, not mounting the Program Control Module properly, long cable runs, etc. etc. After many many months of sporadic results, I'm still fighting with it. I have 30 hours on the plane, and I have to say that despite all these issues, the EC2 has never let me down in flight. Hiccupped, yes, but silence - never. My wiring harness tests out perfectly, but still no joy. The EC2 won't communicate with the EM2, and won't trigger a spark. I'll be doing a definitive test later today by doing what I should have done months ago, and installing my EC2 in Buly's identically configured airplane. THEN we'll know. Despite the severe frustration and delay caused by all this, I really HATE to consider the alternative of an aftermarket ECU like the Microtech where installing redundancy will be a real bear and the total solution will be a lot more expensive and complex (read fault prone). I'd also prefer to continue supporting Tracy's efforts for the benefit of rotary aviation in general. I think he'd rather be rid of me, but I just aint going away. :) On the EM2, I much prefer analog input for quick glance confirmation and trend info, but its well worth the cost and panel space to have ALL the data available when you have time to study it, the graphic access to the EC2 MAP data, and the range warnings working for you in the background. I installed 6 analog engine gauges (coolant temp & pressure, oil temp & pressure, MAP and Fuel pressure) alongside the EM2 which allow me to do a scan and also confirm calibration / sensor failure. The promised autotune and data-logging features of the EM2 will be worth the cost on their own. One advantage some of the aftermarket units apparently have is a built-in timing split to help avoid detonation with turbo installations (a subject very close to my heart and wallet). Tracy has promised to add this feature, but he's busy with a lot of stuff so I don't know when that'll happen. This isn't an issue for NA people. All issues considered, if I were doing it again, I'd buy the EM2/EC2 combination in an injection pulse width. (rotary equivalent of a New York second). John (desperately hoping my EC2 fires up Buly's engine, but fueling up my car in case it doesn't) ------=_NextPart_000_0020_01C55D22.6944B970 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Here's another question - having = little=20 knowledge in the area, I'm considering Tracy's ECU and the = EM2. 
What are your appreciations of = the=20 products. 
 
Hi George,
I've had horrendous problems getting the = EM2/EC2=20 working. Much, if not all, of the problems have probably been to do with = my=20 wiring, not RTFM properly (ie grounding the wrong wire), not using = shielded=20 cable for everything, not mounting the Program Control Module = properly,=20 long cable runs, etc. etc. After many many months of sporadic = results, I'm=20 still fighting with it. I have 30 hours on the plane, and I have to say = that=20 despite all these issues, the EC2 has never let me down in flight. = Hiccupped,=20 yes, but silence - never. My wiring harness tests out = perfectly, but=20 still no joy. The EC2 won't communicate with the EM2, and won't trigger = a spark.=20 I'll be doing a definitive test later today by doing what I should = have=20 done months ago, and installing my EC2 in Buly's identically configured=20 airplane. THEN we'll know.
 
Despite the severe frustration and delay = caused=20 by all this, I really HATE to consider the alternative of an = aftermarket=20 ECU like the Microtech where installing redundancy will be a real bear = and the=20 total solution will be a lot more expensive and complex (read fault = prone).=20 I'd also prefer to continue supporting Tracy's efforts for the benefit=20 of rotary aviation in general. I think he'd rather be rid of me, = but I just=20 aint going away. :)
 
On the EM2, I much prefer analog input for = quick glance=20 confirmation and trend info, but its well worth the cost and panel = space to=20 have ALL the data available when you have time to study it, the graphic = access=20 to the EC2 MAP data, and the range warnings working for you in the=20 background. I installed 6 analog engine gauges (coolant temp & = pressure, oil=20 temp & pressure, MAP and Fuel pressure) alongside the EM2 which = allow me to=20 do a scan and also confirm calibration / sensor failure.  = The=20 promised autotune and data-logging features of the EM2 will = be worth the=20 cost on their own. 
 
One advantage some of the aftermarket units = apparently=20 have is a built-in timing split to help avoid detonation with turbo=20 installations (a subject very close to my heart and wallet). Tracy has = promised=20 to add this feature, but he's busy with a lot of stuff so I don't know = when=20 that'll happen. This isn't an issue for NA = people.
 
All issues considered, if I were doing it = again, I'd=20 buy the EM2/EC2 combination in an injection pulse width. (rotary = equivalent of a=20 New York second).
 
John (desperately hoping my EC2 fires up = Buly's engine,=20 but fueling up my car in case it=20 doesn't)
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