X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 31 May 2013 10:13:05 -0400 Message-ID: X-Original-Return-Path: Received: from omr-d04.mx.aol.com ([205.188.109.201] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6299935 for lml@lancaironline.net; Fri, 31 May 2013 09:57:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.109.201; envelope-from=n5276j@aol.com Received: from mtaomg-da01.r1000.mx.aol.com (mtaomg-da01.r1000.mx.aol.com [172.29.51.137]) by omr-d04.mx.aol.com (Outbound Mail Relay) with ESMTP id 6CDC170047C7A for ; Fri, 31 May 2013 09:57:02 -0400 (EDT) Received: from core-mlb004b.r1000.mail.aol.com (core-mlb004.r1000.mail.aol.com [172.29.186.146]) by mtaomg-da01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 28375E000089 for ; Fri, 31 May 2013 09:57:02 -0400 (EDT) References: X-Original-To: lml@lancaironline.net Subject: Re: [LML] Re: Lancair 360 CHT during climb In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: steve X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8D02C1DDC285523_4C0_E544E_webmail-d261.sysops.aol.com" X-Mailer: AOL Webmail 37752-STANDARD Received: from 70.193.192.73 by webmail-d261.sysops.aol.com (205.188.16.112) with HTTP (WebMailUI); Fri, 31 May 2013 09:57:01 -0400 X-Original-Message-Id: <8D02C1DDC1A0CDD-4C0-435A6@webmail-d261.sysops.aol.com> X-Originating-IP: [70.193.192.73] X-Original-Date: Fri, 31 May 2013 09:57:02 -0400 (EDT) x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:498149952:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d338951a8ac2e3d55 This is a multi-part message in MIME format. ----------MB_8D02C1DDC285523_4C0_E544E_webmail-d261.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" I second this info, except I would never allow my cylinders any where clos= e to 500 Period, unless there was a stone wall I had to climb with no alter= natives.=20 steve alderman 25SA 185 TT -----Original Message----- From: Sky2high To: lml Sent: Fri, May 31, 2013 7:21 am Subject: [LML] Re: Lancair 360 CHT during climb Lyc says 500F is max for short term hi power, 400F is max recommended for c= ontinuous operation. Sensible people often suggest that lower temps lead = to longer engine life. 400F or so for short term, 350F or so for continuou= s.=20 =20 Grayhawk =20 In a message dated 5/31/2013 6:36:04 A.M. Central Daylight Time, gary21sn@h= otmail.com writes: =20 =20 What is the cylinder temperature red line on Lycoming 320/360's? =20 =20 =20 Gary =20 =20 ----- Original Message -----=20 =20 From: Colyn Case=20 =20 To: Lancair Mailing List=20 =20 Sent: Thursday, May 30, 2013 8:58 PM =20 Subject: [LML] Re: Lancair 360 CHT during climb =20 Giles, =20 =20 I don't know what it takes to get CHT's on a 360 in range but the real= question is what does the engine like? GAMI/APS argue that the metal = of the cylinders is getting steadily softer as you go up in temp so the= y like to see 380. The engine mfg's tend to list higher numbers and sa= y that those numbers are considered in the engineering. Personally, I = run my (IV-P TSIO-550) engine hard but I don't like to see more than 38= 0. =20 =20 I think Grayhawk posted a chart a while back that plotted cylinder stre= ngth vs. temp but I can't find it. I did find this article by Mike B= usch in which he says that at 400 degrees the cylinder is half as stron= g as when cold and makes a number of other points about CHT's. http:/= /www.avweb.com/news/savvyaviator/savvy_aviator_59_egt_cht_and_leaning_19816= 2-1.html =20 =20 If the engine cooling is adequate, higher CHT's tend to correlate with = higher internal cylinder pressures which can result from timing that is too= far advanced or mixture not rich enough or not lean enough. Your = A&P should be able to address those but make sure he follows manufactu= rer's recommendations on the fuel setup. I've seen more than one mecha= nic set the fuel flow way below manufacturer's recommendations. (Too = high will ruin your day too). =20 =20 If you have not taken the Advanced Pilot Seminars course on engine mana= gement, I highly recommend it. It's available on line at www.advancedpil= ot.com. =20 =20 If the engine cooling is not adequate, then hopefully one of the 360 gu= ys can tell you how to fix that. On the IV-P engine installation, it t= akes some baffle mods and air guides to get it right. =20 =20 Colyn =20 =20 =20 On May 30, 2013, at 11:47 AM, Gary Edwards wrote: =20 =20 =20 Same here. Temperatures routinely over 400. So 380 to 415 is ok to me= . =20 =20 =20 Gary =20 LNC2 320 =20 =20 ----- Original Message ----- =20 From: Matt =20 To: lml@lancaironline.net =20 Sent: Thursday, May 30, 2013 7:35 AM =20 Subject: [LML] Re: Lancair 360 CHT during climb =20 =20 My 360 runs that hot and has 1700 hours on the engine. I would say i= t is fine. In the summer it can even get that hot in cruise. Not sayi= ng it wouldn't be nice if it ran cooler but again 1700 hours on the e= ngine and she still flies. I live in Southern California so summer is = very hot.=20 =20 =20 Matt Sent from my iPhone =20 On May 30, 2013, at 5:20 AM, steve wrote: =20 =20 =20 380 is OK 415 is not, can you richen to bring down under 400? I wo= uld suggest reducing power to keep it under 400 until you fix the p= roblem, most likely your baffling. Be sure you are sealed.=20 =20 =20 =20 =20 =20 =20 =20 -----Original Message----- From: Gilles Canese To: lml Sent: Wed, May 29, 2013 5:44 pm Subject: [LML] Lancair 360 CHT during climb =20 Hello=20 I am a new Lancair 360 owner and I have a question about CHT during climbin= g At=20 full power after take off, CHT 's are between 380 and 415 oF, is it normal= for=20 a 360? Thanks for the answers=20 Gilles=20 Envoy=C3=A9 de mon iPad -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ----------MB_8D02C1DDC285523_4C0_E544E_webmail-d261.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
I second this info, except I would never allow my cylinders  any = where close to 500 Period, unless there was a stone wall I had to clim= b with no alternatives.
 
 
steve alderman 25SA  185 TT
-----Original Message-----
From: Sky2high <Sky2high@aol.com>
To: lml <lml@lancaironline.net>
Sent: Fri, May 31, 2013 7:21 am
Subject: [LML] Re: Lancair 360 CHT during climb

Lyc says 500F is max for short term hi power, 400F is max=20 recommended for continuous operation.   Sensible people=20 often suggest that lower temps lead to longer engine life.  400F = or so=20 for short term, 350F or so for continuous. 
 
Grayhawk
 
In a message dated 5/31/2013 6:36:04 A.M. Central Daylight Time,=20 gary21sn@hotmail.com writes:
=20
=20
What is the cylinder temperature red line on Lycoming 320/360's?
=20
 
=20
Gary
=20
----- Original Message -----
=20
From: Colyn Case
=20 =20
Sent: Thursday, May 30, 2013 8:58=20 PM
=20
Subject: [LML] Re: Lancair 360 CHT=20 during climb
=20

Giles, =20 =20

=20
I don't know what it takes to get CHT's on a  360 in range but th= e=20 real question is what does the engine like?  GAMI/APS argue that t= he=20 metal of the cylinders is getting steadily softer as you go up in temp = so=20 they like to see 380.  The engine mfg's tend to list higher number= s and=20 say that those numbers are considered in the engineering.  Persona= lly,=20 I run my (IV-P TSIO-550) engine hard but I don't like to see more than= =20 380.
=20

=20
I think Grayhawk posted a chart a while back that plotted cylinder=20 strength vs. temp but I can't find it.    I did find this art= icle=20 by Mike Busch in which he says that at 400 degrees the cylinder is half= as=20 strong as when cold and makes a number of other points about CHT's.=20   http://www.avweb.com/news/savvyaviator/savvy_aviator_59_egt_cht= _and_leaning_198162-1.html
=20

=20
If the engine cooling is adequate, higher CHT's tend to correlate with= =20 higher internal cylinder pressures which can result from timing that is= too=20 far advanced or mixture not rich enough or not lean enough.   Your= =20 A&P should be able to address those but make sure he follows=20 manufacturer's recommendations on the fuel setup.  I've seen more = than=20 one mechanic set the fuel flow way below manufacturer's recommendations= .=20   (Too high will ruin your day too).
=20

=20
If you have not taken the Advanced Pilot Seminars course on engine=20 management,   I highly recommend it.  It's available on line = at www.advancedpilot.com.
=20

=20
If the engine cooling is not adequate, then hopefully one of the 360= =20 guys can tell you how to fix that.  On the IV-P engine installatio= n, it=20 takes some baffle mods and air guides to get it right.
=20

=20
Colyn
=20

=20
=20
On May 30, 2013, at 11:47 AM, Gary Edwards wrote:

=20
=20
=20
Same here.  Temperatures routinely over 400.  So 380 to 415= =20 is ok to me.
=20
 
=20
Gary
=20
LNC2 320
=20
----- Original Message -----
=20
From: <= a title=3D"mailto:mattinlosangeles@yahoo.com" href=3D"mailto:mattinlosangel= es@yahoo.com">Matt
=20 =20
Sent: T= hursday, May 30, 2013 7:35=20 AM
=20
Subject: [LML] Re: Lancair 360 CHT during=20 climb
=20

=20
My 360 runs that hot and has 1700 hours on the engine.  I would= =20 say it is fine. In the summer it can even get that hot in cruise. Not= =20 saying it wouldn't be nice if it ran cooler but again 1700 hours on t= he=20 engine and she still flies. I live in Southern California so summer i= s=20 very hot. 
=20

=20
Matt

Sent from my iPhone
=20

On May 30, 2013, at 5:20 AM, steve <n5276j@aol.com> wrote:

=20
=20
380 is OK 415 is not, can you richen to bring down under 400? =20 I would suggest reducing power to keep it under 400 until you fix t= he=20 problem, most likely your baffling.  Be sure you are=20 sealed. 
=20
 
=20
 
=20
=20
=20
gilles.canese@sfr.fr>
To:=20 lml <lml@lancaironline.net>
Sent:=20 Wed, May 29, 2013 5:44 pm
Subject: [LML] Lancair 360 CHT during=20 climb

=20 
Hello=20
I am a new Lancair 360 owner and I have a question about CHT during climbin=
g At=20
full power after take off,  CHT 's are between 380 and 415 oF, is it normal=
 for=20
a 360?

Thanks for the answers=20

Gilles=20


Envoy=C3=A9 de mon iPad
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