X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA12.emeryville.ca.mail.comcast.net ([76.96.27.227] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3592416 for flyrotary@lancaironline.net; Tue, 21 Apr 2009 22:40:28 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.227; envelope-from=wschertz@comcast.net Received: from OMTA11.emeryville.ca.mail.comcast.net ([76.96.30.36]) by QMTA12.emeryville.ca.mail.comcast.net with comcast id iRmr1b00b0mlR8UACSfsr9; Wed, 22 Apr 2009 02:39:52 +0000 Received: from WschertzPC ([71.57.77.95]) by OMTA11.emeryville.ca.mail.comcast.net with comcast id iSfm1b00223NHuF8XSfnVV; Wed, 22 Apr 2009 02:39:52 +0000 Message-ID: <3BB935E7016A45F0AC4336583D7743AB@WschertzPC> From: "Bill Schertz" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] EC2 address range issue Date: Tue, 21 Apr 2009 21:39:40 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0121_01C9C2C9.ACE95E40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0121_01C9C2C9.ACE95E40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bobby, On my EC-2, the map table changes from low table to high table at 2400 = rpm. I don't have a super charger, and my EC-2 may not be the same model = as yours, as Tracy keeps making changes/improvements. You are seeing one reading at 3010 rpm and another at 2270, these span = the area where mine (according to manual) switches between low and high = map tables. Bill Schertz KIS Cruiser #4045 N343BS ----- Original Message -----=20 From: Bobby J. Hughes=20 To: Rotary motors in aircraft=20 Sent: Tuesday, April 21, 2009 8:20 PM Subject: [FlyRotary] EC2 address range issue I sent an email to Tracy but he's at SNF this week and not sure he = will see it until next week. Though I would run this by the group. Mixture Correction Table address 32-41 are giving me problems. Here is = an example of what I am seeing. Address 37 , MAP 12.1, RPM 3010, Val +26, O2- 14.5 Tuned perfect. = Move the throttle up and down the map table and engine starts to run = poor in the address range. Adjust throttle back to Address 37 and things = have changed. Address 37, MAP 12.5, RPM 2270, VAL +26, O2- 12.5 Tuned rich. I have tuned this range a dozen or more times. It also happens to be = right in my taxi range.=20 Ground run settings. Prop in fixed mode at high rpm setting. Supercharger 1" bypass open so no air is being compressed in manifold. Prop and supercharger settings do not seem to make any difference with = this problem. I played around with mode 7A changing the rpm vs manifold reference = points but did not seem to make a difference. I can idle at 10" MAP and 1200 rpm. Any ideas? Bobby Hughes (last item before flight) ------=_NextPart_000_0121_01C9C2C9.ACE95E40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bobby,
On my EC-2, the map table changes from = low table to=20 high table at 2400 rpm. I don't have a super charger, and my EC-2 may = not be the=20 same model as yours, as Tracy keeps making = changes/improvements.
 
You are seeing one reading at 3010 rpm = and another=20 at 2270, these span the area where mine (according to manual) switches = between=20 low and high map tables.
Bill Schertz
KIS Cruiser #4045
N343BS
----- Original Message -----
From:=20 Bobby J. = Hughes=20
Sent: Tuesday, April 21, 2009 = 8:20=20 PM
Subject: [FlyRotary] EC2 = address range=20 issue

I = sent an email to=20 Tracy but he's at SNF this week and not sure he will see it until = next=20 week. Though I would run this by the group.
 
Mixture Correction=20 Table address 32-41 are giving me problems. Here is an example of = what I=20 am seeing.
 
Address 37 ,=20 MAP 12.1, RPM 3010, Val +26, O2- 14.5  Tuned perfect. Move the = throttle=20 up and down the map table and engine starts to run poor in the address range. Adjust = throttle back to=20 Address 37 and things have changed.
Address 37, =20 MAP 12.5, RPM 2270, VAL +26, O2- 12.5  Tuned = rich.
 
I have tuned this range a dozen or more = times. It=20 also happens to be right in my taxi range.
 
Ground run = settings.
 
Prop in fixed mode at high rpm=20 setting.
Supercharger 1" bypass open so = no air is=20 being compressed in manifold.
Prop and supercharger settings do not seem = to make=20 any difference with this problem.
I played around with mode 7A changing the = rpm vs=20 manifold reference points but did not seem to make a=20 difference.
 
I can idle at 10" MAP and 1200=20 rpm.
 
 
 
Any ideas?
 
Bobby Hughes
(last item before=20 flight)
 
= ------=_NextPart_000_0121_01C9C2C9.ACE95E40--