X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from sccrmhc11.comcast.net ([204.127.202.55] verified) by logan.com (CommuniGate Pro SMTP 5.0.3) with ESMTP id 861765 for flyrotary@lancaironline.net; Sat, 03 Dec 2005 09:05:18 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.202.55; envelope-from=kenpowell@comcast.net Received: from smailcenter50.comcast.net ([204.127.205.150]) by comcast.net (sccrmhc11) with SMTP id <2005120314043301100ag2h7e>; Sat, 3 Dec 2005 14:04:33 +0000 Received: from [68.51.59.7] by smailcenter50.comcast.net; Sat, 03 Dec 2005 14:04:32 +0000 From: kenpowell@comcast.net To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: EGT delta/ EC2 Primer Date: Sat, 03 Dec 2005 14:04:32 +0000 Message-Id: <120320051404.17607.4391A5F000066680000044C7220075115004040A99019F020A05@comcast.net> X-Mailer: AT&T Message Center Version 1 (Dec 17 2004) X-Authenticated-Sender: a2VucG93ZWxsQGNvbWNhc3QubmV0 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_17607_1133618672_0" --NextPart_Webmail_9m3u9jl4l_17607_1133618672_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Tracy, I volunteer Laura to be your Doc writer. I bet that if you can explain it to her and she can then write it up for you. We have the same problem in software - I absolutely hate trying to give the Doc writer enough information to 'write it up'. I would rather do it myself but that would never be allowed. Ken Powell Bryant, Arkansas 501-847-4721 C150 / RV-4 under construction -------------- Original message -------------- WOW, 20 clicks AND cold start! Good grief it's cold up there. Thanks for the feedback Todd. I'm using about 4 - 6 clicks in mild weather with mix at full rich but without cold start. Based on your experience and what I'm seeing here in Fla. I will increase the primer pulse width. The Auto Tune is now a standard feature in the EM2 and I've had good success with it. Unfortunately I have not gotten much feedback from the field so I do not have a lot of confidence in the instructions furnished with it yet. It always seems that the engineer who designs a widget is incapable of describing how to use it to anyone else. Guess that’s why 'real' companies devote a separate department to documentation. Concerning your EM2 display glitch, did you extend the cable between the DAQ module and the display? If it is over 3 or so feet you are probably getting self induced crosstalk in the cable. There is a filter mod that will take care of that. I'll be glad to install it and the auto tune if you like. Tracy (hoping to hear more squawks from builders) ----- Original Message ----- From: Bartrim, Todd To: Rotary motors in aircraft Sent: Friday, December 02, 2005 4:53 PM Subject: [FlyRotary] Re: EGT delta Hi Tracy; Yup, I've had the updated chip since last spring. It does work, but in these cold temps (-15C), I still need to set mixture at full rich, cold start on, then it takes between 20 & 30 clicks of the primer function and it will start right up. Less than 20 clicks and it just coughed a bit. The fuel was old though, but I've since filled up with fresh fuel, but not had the opportunity to do a cold start. It almost seems that I couldn't flood it if I tried. I doubt that most of your other users would require more but I'd like to have a little longer pulse for each click. Is there any other new updates to the EC2 chip, that I should get? What about the EM2 with autotune? Is that now fully available or is it just a few beta versions out there? If so is it compatible with the early versions of the EC2 (big box) and EM2 ? While my tuning is pretty good right now, I still have some work to do on the low MAP table, so would really like to have the autotune capability. I still get the occasional character shift to the left on my EM2 display, requiring a reboot. My display wire cable is well shielded now as previously there was allot of problems with this. I don't suppose there is any known fix for this at this time? Todd From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook Sent: Friday, December 02, 2005 8:12 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: EGT delta Glad to hear that you are flying again Todd. BTW, you are the one who inspired the new Primer function on the EC2. Can't remember if yours has it or not. If so, are you using it and how does it work at low temperatures? --NextPart_Webmail_9m3u9jl4l_17607_1133618672_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Tracy,
I volunteer Laura to be your Doc writer.  I bet that if you can explain it to her and she can then write it up for you.  We have the same problem in software - I absolutely hate trying to give the Doc writer enough information to 'write it up'.  I would rather do it myself but that would never be allowed.

Ken Powell
Bryant, Arkansas
501-847-4721
C150 / RV-4 under construction
 
-------------- Original message --------------
WOW, 20 clicks AND cold start!   Good grief it's cold up there.
 
Thanks for the feedback Todd.  I'm using about 4 - 6 clicks in mild weather with mix at full rich but without cold start.  Based on your experience and what I'm seeing here in Fla. I will increase the primer pulse width.  
 
The Auto Tune is now a standard feature in the EM2 and I've had good success with it.  Unfortunately I have not gotten much feedback from the field so I do not have a lot of confidence in the instructions furnished with it yet.  It always seems that the engineer who designs a widget is incapable of describing how to use it to anyone else.  Guess that’s why 'real' companies devote a separate department to documentation.
 
Concerning your EM2 display glitch,  did you extend the cable between the DAQ module and the display?  If it is over 3 or so feet you are probably getting self induced crosstalk in the cable.  There is a filter mod that will take care of that.  I'll be glad to install it and the auto tune if you like.
 
Tracy (hoping to hear more squawks from builders)
----- Original Message -----
Sent: Friday, December 02, 2005 4:53 PM
Subject: [FlyRotary] Re: EGT delta

Hi Tracy;
    Yup, I've had the updated chip since last spring. It does work, but in these cold temps (-15C), I still need to set mixture at full rich, cold start on, then it takes between 20 & 30 clicks of the primer function and it will start right up. Less than 20 clicks and it just coughed a bit. The fuel was old though, but I've since filled up with fresh fuel, but not had the opportunity to do a cold start. It almost seems that I couldn't flood it if I tried. I doubt that most of your other users would require more but I'd like to have a little longer pulse for each click.
    Is there any other new updates to the EC2 chip, that I should get? What about the EM2 with autotune? Is that now fully available or is it just a few beta versions out there? If so is it compatible with the early versions of the EC2 (big box) and EM2 ? While my tuning is pretty good right now, I still have some work to do on the low MAP table, so would really like to have the autotune capability. I still get the occasional character shift to the left on my EM2 display, requiring a reboot. My display wire cable is well shielded now as previously there was allot of problems with this. I don't suppose there is any known fix for this at this time?
 
    Todd   

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Friday, December 02, 2005 8:12 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EGT delta

 
Glad to hear that you are flying again Todd.  BTW, you are the one who inspired the new Primer function on the EC2.  Can't remember if yours has it or not.  If so, are you using it and how does it work at low temperatures?
 
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