Return-Path: Received: from [216.211.128.10] (HELO mail-in04.adhost.com) by logan.com (CommuniGate Pro SMTP 5.0) with ESMTP id 814685 for flyrotary@lancaironline.net; Fri, 04 Nov 2005 10:49:15 -0500 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=joeh@PilgrimTech.com Received: from pilgrim9 (tide40.microsoft.com [131.107.0.83]) by mail-in04.adhost.com (Postfix) with ESMTP id CB096B96AF for ; Fri, 4 Nov 2005 07:48:29 -0800 (PST) (envelope-from joeh@PilgrimTech.com) Reply-To: From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Timing Date: Fri, 4 Nov 2005 07:48:28 -0800 Organization: Pilgrim Technologies Message-ID: <003301c5e157$33b65980$c6a0389d@redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0034_01C5E114.25931980" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Thread-Index: AcXhSOcJv31c4rlRQqGSmpGeOvSl6QADPaVA In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0034_01C5E114.25931980 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Joe, one thing to keep in mind. Your static timing setting is really setting your Maximum possible advance - in other words, you can NOT advance the timing beyond that point by electronic means. Ed A Ed, that makes a lot of sense. The ECU/Controller/Distributor - they all only know where the engine is when those pickup points on the CA align. Everything that the ECU/Controller/Distributor does is only after it knows what position the rotor/piston is in. Yes, I guess the ECU could calculate an advance beyond that static point based on speed and when it last saw the contacts/pickup fire - but in that case it would be just a really really retarded firing because it would have to be based on the LAST time it saw the CA pickup fire. That really helps my understanding to look at it that way.maybe I'm becoming just a little less retarded myself :-) Joe Hull Redmond (Seattle), Washington Cozy MkIV #991 (working on Engine & Electrical & Finishing) http://www.maddyhome.com/canardpages/pages/JoeHull/index.html ------=_NextPart_000_0034_01C5E114.25931980 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Joe, one thing to keep in = mind.  Your static timing = setting is really setting your Maximum possible advance - in other words, you can = NOT advance the timing beyond that point by electronic = means.

Ed A

 

Ed, that makes a lot of sense. The = ECU/Controller/Distributor – they all only know where the engine is when those pickup points = on the CA align. Everything that the ECU/Controller/Distributor does is only = after it knows what position the rotor/piston is in. Yes, I guess the ECU could calculate an advance beyond that static point based on speed and when it = last saw the contacts/pickup fire – but in that case it would be just a = really really retarded firing because it would have = to be based on the LAST time it saw the CA pickup = fire.

 

That really helps my understanding = to look at it that way…maybe I’m becoming just a little less = retarded myself J

 

Joe = Hull

Redmond (Seattle), Washington

Cozy MkIV #991 = (working on Engine & Electrical & Finishing)

http://www.maddyhome.com/canardpages/pages/JoeHull/index.html

 

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