X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 57 [XX] (57%) URL: contains host with port number (43%) HEADERS: MIME content-type header doesn't contain charset information Return-Path: Received: from rwcrmhc15.comcast.net ([204.127.192.85] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2040332 for flyrotary@lancaironline.net; Sat, 12 May 2007 18:58:56 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.192.85; envelope-from=hoursaway1@comcast.net Received: from rmailcenter03.comcast.net ([204.127.197.113]) by comcast.net (rwcrmhc15) with SMTP id <20070512225820m15007gr32e>; Sat, 12 May 2007 22:58:20 +0000 Received: from [24.11.213.126] by rmailcenter03.comcast.net; Sat, 12 May 2007 22:58:20 +0000 From: hoursaway1@comcast.net To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: EC2 question Date: Sat, 12 May 2007 22:58:20 +0000 Message-Id: <051220072258.11627.4646468B000EE21000002D6B2200745672CE970E990E9C9D9A0108@comcast.net> X-Mailer: AT&T Message Center Version 1 (Oct 4 2006) X-Authenticated-Sender: aG91cnNhd2F5MUBjb21jYXN0Lm5ldA== MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_11627_1179010700_0" --NextPart_Webmail_9m3u9jl4l_11627_1179010700_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Another question about EC2-EM2 conections, I think I read somewhere on the flyrotary about MAP conections, if I have both do I need the MAP vacume conection to EM2 or will EC2 supply info and if so what to do about open MAP port at EM2? Will need EM2 update, how long will you be gone? Thanks, David RV6A Rotary, fus. to paint shop end of month. -------------- Original message -------------- From: "Tracy Crook" You can cut it off without grounding anything but of course the auto tune function of the EM2 will not work without the O2 sensor input. The mixture indicator on EM2 will drift around unless you ground it. This is one example of where you can usually parallel two instruments from one sensor and it will work. Mixture monitors just look at voltage from the sensor and are usually very high input impedance so they should not load down the sensor. BTW Buly, when I looked at your EC2 map table prior to the snubber update it was VERY erratic. I was surprised the engine ran well enough to fly. Take a look at it with your EM2 and make sure it looks reasonable after you do some tuning. For instance, if two adjacent MAP addresses are at opposite ends of the scale, it is not reasonable and you should investigate. It is very instructive to fly with the MAP table screen up on the EM2 in track mode and watch the table pointer (blinking bargraph bar) and the mixture monitor. Move the throttle around so that the pointer moves through the suspected problem areas and insure that the mixture monitor stays in the middle. If it doesn't, adjust the MAP address that causes mixture to go out of proper range. Tracy ----- Original Message ----- From: atlasyts@bellsouth.net To: Rotary motors in aircraft Sent: Thursday, May 10, 2007 9:58 PM Subject: [FlyRotary] Re: EC2 question I'm not using the O2 sensor lead for the EM2. I wander if I can just cut it off at the plug, or have to ground it? I have installed a wide band O2 sensor with it's own processor and display. Buly -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --NextPart_Webmail_9m3u9jl4l_11627_1179010700_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
 
Another question about EC2-EM2 conections, I think I read somewhere on the flyrotary about MAP conections, if I have both do I need the MAP vacume conection to EM2  or will EC2 supply info and if so what to do about open MAP port at EM2?   Will need EM2 update, how long will you be gone?  Thanks,  David  RV6A Rotary,  fus. to paint shop end of month.
-------------- Original message --------------
From: "Tracy Crook" <lors01@msn.com>
You can cut it off without grounding anything but of course the auto tune function of the EM2 will not work without the O2 sensor input.   The mixture indicator on EM2 will drift around unless you ground it.  This is one example of where you can usually parallel two instruments from one sensor and it will work.   Mixture monitors just look at voltage from the sensor and are usually very high input impedance so they should not load down the sensor.
 
BTW Buly, when I looked at your EC2 map table prior to the snubber update it was VERY erratic.  I was surprised the engine ran well enough to fly.  Take a look at it with your EM2 and make sure it looks reasonable after you do some tuning. 
 
  For instance, if two adjacent MAP addresses are at opposite ends of the scale, it is not reasonable and you should investigate.   It is very instructive to fly with the MAP table screen up on the EM2 in track mode and watch the table pointer (blinking bargraph bar) and the mixture monitor.  Move the throttle around so that the pointer moves through the suspected problem areas and insure that the mixture monitor stays in the middle. If it doesn't, adjust the MAP address that causes mixture to go out of proper range. 
 
Tracy
----- Original Message -----
Sent: Thursday, May 10, 2007 9:58 PM
Subject: [FlyRotary] Re: EC2 question


I'm not using the O2 sensor lead for the EM2. I wander if I can just cut it off at the plug, or have to ground it? I have installed a wide band O2 sensor with it's own processor and display.
Buly


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