Al,
I just uploaded an excel spreadsheet and graph of my CHT's from a February
15th flight. Thought you might find this interesting. File is in S-Engine
Category or under new files.
CHT#5 is higher than I like as this cylinder is right in from of my oil
cooler. The problem is worse in the summer months when I'm on floats.
I plan to try installing a small ducted scoop on the top of the cowl to push
air through my oil cooler. This should also stop the loss of cooling air from
around cylinder #5. Right now some of the potential cylinder 5 cooling air
gets diverted through the oil cooler.
The graph shows take off, a short flight to the cabin, temps rise and fall as
I do a few descents and climbs at the lake, then temps normalize as I crise to
Skwentna and back to Anchorage.
Chris
On 2/17/2004 2:53 PM,
PAXHIA2@COMCAST.NET wrote to MURPHY-REBEL:
-> Received: by dcsol.com (Wildcat! SMTP Router v5.7.450.9b10)
-> for
murphy-rebel@dcsol.com; Mon, 16 Feb 2004 11:33:55 -0900
-> Received: from ([204.127.202.55]) EHLO=sccrmhc11.comcast.net
-> by dcsol.com (Wildcat! SMTP v5.7.450.9b10) with SMTP
-> id 349323328; Mon, 16 Feb 2004 11:33:53 -0900
-> Received: from NEWCOMPUTER (c-24-19-146-170.client.comcast.net
[24.19.146.170])
-> by comcast.net (sccrmhc11) with SMTP
-> id <2004021620333701100kgc3ve>; Mon, 16 Feb 2004 20:33:37 +0000
-> Message-ID: <002501c3f4cc$29fe8e40$6401a8c0@NEWCOMPUTER>
-> From: "Al Paxhia" <
paxhia2@comcast.net>
-> To: <
murphy-rebel@dcsol.com>
-> References: <
1076957897@dcsol.com>
-> Subject: Re: Exhaust system for IO540
-> Date: Mon, 16 Feb 2004 12:33:40 -0800
-> X-Orig-MIME-Version: 1.0
-> X-Orig-Content-Type: text/plain; charset="iso-8859-1"
-> X-Orig-Content-Transfer-Encoding: 7bit
-> X-Priority: 3
-> X-MSMail-Priority: Normal
-> X-Mailer: Microsoft Outlook Express 6.00.2800.1158
-> X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165
-> X-Antivirus-Remover: Message was filtered through wsMailGuard (wsAV)
->
-> Chris,
-> The OAT was 35-40 F on that day. Last week went up to Abbotsford, about an
-> hour flight, CHT was as high as 370 with the OAT in the high 50's(best
-> weather in a long time). Al
-> ----- Original Message -----
-> From: <
gill.sr25@dcsol.com>
-> To: <
murphy-rebel@dcsol.com>
-> Sent: Monday, February 16, 2004 10:58 AM
-> Subject: RE: Exhaust system for IO540
->
->
-> > Al,
-> >
-> > What OAT were you operating at when you were seeing the CHT's?
-> >
-> > Chris Gill
-> > SR2500, Anchorage, AK
-> > 907-227-9352
-> >
-> > On 2/16/2004 9:56 AM,
PAXHIA2@COMCAST.NET wrote to MURPHY-REBEL:
-> >
-> > -> Received: by dcsol.com (Wildcat! SMTP Router v5.7.450.9b10)
-> > -> for
murphy-rebel@dcsol.com; Tue, 10 Feb 2004 20:53:20 -0900
-> > -> Received: from ([204.127.202.64]) EHLO=sccrmhc13.comcast.net
-> > -> by dcsol.com (Wildcat! SMTP v5.7.450.9b10) with SMTP
-> > -> id 609685812; Tue, 10 Feb 2004 20:53:18 -0900
-> > -> Received: from NEWCOMPUTER (c-24-19-146-170.client.comcast.net
-> > [24.19.146.170])
-> > -> by comcast.net (sccrmhc13) with SMTP
-> > -> id <20040211055156016007ukqee>; Wed, 11 Feb 2004 05:51:56
-> +0000
-> > -> Message-ID: <000801c3f063$2bf98ff0$6401a8c0@NEWCOMPUTER>
-> > -> From: "Al Paxhia" <
paxhia2@comcast.net>
-> > -> To: <
murphy-rebel@dcsol.com>
-> > -> References: <001901c3f048$600619f0$ad05efd1@Thinkpad>
-> > -> Subject: Exhaust system for IO540
-> > -> Date: Tue, 10 Feb 2004 21:52:01 -0800
-> > -> X-Orig-MIME-Version: 1.0
-> > -> X-Orig-Content-Type: text/plain; charset="iso-8859-1"
-> > -> X-Orig-Content-Transfer-Encoding: 7bit
-> > -> X-Priority: 3
-> > -> X-MSMail-Priority: Normal
-> > -> X-Mailer: Microsoft Outlook Express 6.00.2800.1158
-> > -> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165
-> > -> X-Antivirus-Remover: Message was filtered through wsMailGuard (wsAV)
-> > ->
-> > -> I just did 2.5 hours of testing with a new Forsling Aviation exhaust
-> system.
-> > -> The data looks very good, but I'm not sure I understand it all.
-> > -> Cylinder temps have dropped 30-35 degrees. They range from 326 to 360.
-> The
-> > -> exhaust temperatures are more balanced. At cruise 23"MP and 2300 rpm,
-> full
-> > -> rich now burns 16.4gal/hr this is an increase of .4 gal/hour, but when
-> > -> leaning the temps are balanced to a flow of 13 gal/hour. If I go LOP
-> the
-> > -> flow is even lower and temp are all good. Oil temp was about 190 about
-> the
-> > -> same.
-> > -> I've put some pictures out, if your interested.
-> > -> If anyone is interested in the old system its for sale, it's a good
-> system
-> > -> if your running a 260 hp, 540. Contact me offline.
-> > -> Al
-> > -> Moose, N526AP,
paxhia2@comcast.net
-> > ->
-> > ->
-> >
-> >
-> >
-> >
-> >
-> *-------------------------------------------------------------------------*
-> > To unsubscribe from this list go to:
-> >
https://www.dcsol.com/public/code/html-subscribe.wcx
-> > Archives located at
https://www.dcsol.com/default.htm
-> > Archives public username "rebel" password "builder"
-> > To contact the list admin, e-mail
mike.davis@dcsol.com
-> >
-> *-------------------------------------------------------------------------*
-> >
-> >
-> >
-> >
->
->
*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at
https://www.dcsol.com/default.htm
Archives public username "rebel" password "builder"
To contact the list admin, e-mail
mike.davis@dcsol.com
*-------------------------------------------------------------------------*
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------