Return-Path: Received: from corpprd-pxy2.canfor.ca ([198.162.160.3] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 753311 for flyrotary@lancaironline.net; Mon, 21 Feb 2005 16:45:04 -0500 Received-SPF: none receiver=logan.com; client-ip=198.162.160.3; envelope-from=Steve.Bartrim@canfor.com Received: from canformail1.canfor.ca (canformail1.canfor.ca [199.60.193.29]) by corpprd-pxy2.canfor.ca (Build 103 8.9.3p2/NT-8.9.3) with ESMTP id NAA08233 for ; Mon, 21 Feb 2005 13:44:18 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C5185E.7E689AD0" Subject: RE: [FlyRotary] Re: Digital Fuel Monitoring System / EC2 Primer function Date: Mon, 21 Feb 2005 13:44:17 -0800 Message-ID: <091A2D42FAF91A41B84750D269FC97E72B3116@canformail1.canfor.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Digital Fuel Monitoring System / EC2 Primer function Thread-Index: AcUXBaiNcN8vcWYUQSm+zp2obW+2QgBV4GHg From: "Bartrim, Todd" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C5185E.7E689AD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Excellent work Tracy; I just received my DPDT mom-on push button switch (I'm surprised that these aren't really that common) for the primer circuit I was going to install on my EC2 as discussed earlier, but hadn't actually installed it yet.=20 But your solution is a little more elegant, so I'll definitely upgrade. I'll be happy to report it's effectiveness in our weather, however spring is coming early this year and I rode my motorbike to work today, so it looks like the coldest part it over. =20 Todd I have never run into the cold start problems that some builders have mentioned but Ed did show me that it can happen on a cold morning, even in Florida. I finally got around to adding a primer function to the EC2 code and it will be incorporated in all future EC2s. If any of you cold climate builders feel the need, a chip swap can get this function in earlier EC2s. Contact me via email. =20 It works like this: =20 When the engine is not running and the mode select switch is set to zero, pushing the Store switch will give a 10 ms shot on all 4 injectors. How many shots are required for a really cold start will depend on manifold design, temperature, injector position, etc, and will have to be determined experimentally. =20 Tracy=20 =20 ------_=_NextPart_001_01C5185E.7E689AD0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Excellent work Tracy;
    I just received my DPDT mom-on push = button=20 switch (I'm surprised that these aren't really that common) for the = primer=20 circuit I was going to install on my EC2 as discussed earlier, but = hadn't=20 actually installed it yet. 
    But your solution is a little more = elegant, so=20 I'll definitely upgrade. I'll be happy to report it's effectiveness in = our=20 weather, however spring is coming early this year and I rode my = motorbike to=20 work today, so it looks like the coldest part it = over.
 
Todd

I have never run=20 into the cold start problems that some builders have mentioned but Ed = did show=20 me that it can happen on a cold morning, even in Florida.  I = finally got=20 around to adding a primer function to the EC2 code and it will be = incorporated=20 in all future EC2s.  If any of you cold climate builders feel the = need, a=20 chip swap can get this function in earlier EC2s.  Contact me via=20 email.
 
It works like this:
 
When the engine is not running and the mode select switch is set = to zero,=20 pushing the Store switch will give a 10 ms shot on all 4 = injectors.  How=20 many shots are required for a really cold start will depend on = manifold=20 design, temperature, injector position, etc, and will have to be = determined=20 experimentally.
 
Tracy
 
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