Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2b4) with ESMTP id 121368 for flyrotary@lancaironline.net; Wed, 02 Jun 2004 18:35:22 -0400 Received: from EDWARD (clt25-78-058.carolina.rr.com [24.25.78.58]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i52MYKLr002651 for ; Wed, 2 Jun 2004 18:34:21 -0400 (EDT) Message-ID: <001d01c448f1$bf8c07c0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Turbo boost limits in the EC2 Date: Wed, 2 Jun 2004 18:34:20 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01C448D0.38306670" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_001A_01C448D0.38306670 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageSounds like a great solution, John. However, are you turbo guys = certain cutting the ignition on the trailing coils will actually reduce = your boost sufficiently?? Have any of you (I know, I know you have = alligators up to your ..err.. knees with current situation, but..) = actually tried using your coil test switch to kill your trailing coil = while under boost and observed the effect. Might be worth knowing, if = you haven't - rather than get your hopes up only to find out that = Tracy's mod doesn't give you what you want. Just a though from an NA guy {:>) Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Wednesday, June 02, 2004 3:36 PM Subject: [FlyRotary] Turbo boost limits in the EC2 Fellow turbo people, I just had a conversation with Tracy while ordering my EM2. We discussed ways to detect and limit overboost. I suggested that the = EC2 is watching MAP anyway, so it could spot a user programmable boost = limit - e.g. 50 MAP being exceeded, and cut the training coils until the = MAP drops below it. At first glance Tracy felt this was fairly easy to = do. He has the MAP data and control of the coils there anyway, so it = would just be a few lines of code [my words, not Tracy's] to implement. = I agreed with Tracy to run it by the other blow hards to see if there = was a consensus on whether this would be worth the effort on his end. Opinions?=20 John Slade (for once, the term blowhards doesn't include Rusty) ------=_NextPart_000_001A_01C448D0.38306670 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Sounds like a great solution, = John.  However,=20 are you turbo guys certain cutting the ignition on the trailing coils = will=20 actually reduce your boost sufficiently??  Have any of you (I know, = I know=20 you have alligators up to your ..err.. knees with current situation, = but..)=20 actually tried using your coil test switch to kill your trailing coil = while=20 under boost and observed the effect.  Might be worth knowing, if = you=20 haven't - rather than get your hopes up only to find out that Tracy's = mod=20 doesn't give you what you want.
 
Just a though from an NA guy = {:>)
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From:=20 John=20 Slade
Sent: Wednesday, June 02, 2004 = 3:36=20 PM
Subject: [FlyRotary] Turbo = boost limits=20 in the EC2

Fellow turbo=20 people,
I just had a conversation = with Tracy=20 while ordering my EM2.
 
We=20 discussed ways to detect and limit overboost. = I=20 suggested that the EC2 is watching MAP anyway, so it could = spot a=20 user programmable boost limit - e.g. 50 MAP being exceeded, and cut = the=20 training coils until the MAP drops below it. At first glance Tracy = felt this=20 was fairly easy to do. He has the MAP data and control of the = coils there=20 anyway, so it would just be a few lines of code [my words, = not=20 Tracy's] to implement.  =
&nbs= p;
I agreed=20 with Tracy to run it by the other blow hards to see if there was a = consensus=20 on whether this would be worth the effort on his=20 end.
&nbs= p;
Opinions?=20
&nbs= p;
John=20 Slade (for once, the term blowhards doesn't include=20 = Rusty)
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