X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-d02.mx.aol.com ([205.188.109.194] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6299880 for lml@lancaironline.net; Fri, 31 May 2013 09:21:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.109.194; envelope-from=Sky2high@aol.com Received: from mtaomg-da03.r1000.mx.aol.com (mtaomg-da03.r1000.mx.aol.com [172.29.51.139]) by omr-d02.mx.aol.com (Outbound Mail Relay) with ESMTP id EC6E970060917 for ; Fri, 31 May 2013 09:21:15 -0400 (EDT) Received: from core-mta001c.r1000.mail.aol.com (core-mta001.r1000.mail.aol.com [172.29.234.129]) by mtaomg-da03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id AC14CE000086 for ; Fri, 31 May 2013 09:21:15 -0400 (EDT) From: Sky2high@aol.com Full-name: Sky2high Message-ID: <6aeb2.7d2341b1.3ed9fdcb@aol.com> Date: Fri, 31 May 2013 09:21:15 -0400 (EDT) Subject: Re: [LML] Re: Lancair 360 CHT during climb To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_6aeb2.7d2341b1.3ed9fdcb_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1370006475; bh=nck5hEEgzFoDwyvwNT824iT/paKGj0aVqFfJtJEWwZU=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=v1oa25aGXeL2higO5f2D6MePX7kYTNs3SX5X0RXT03KivOpBAbpnECSmfdRCDDJFy TW8rn5gaykSz69+vt0HwaSfiQi09BNiMKaf0rbyWkS9UYxUWA4bE9rl5bnceM0fzzG 7DkvcAD9rSNsAUXq4EezHZEk0mNgmZ/NWvQ8HorY= X-AOL-SCOLL-SCORE: 0:2:503636480:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d338b51a8a3cb58c5 --part1_6aeb2.7d2341b1.3ed9fdcb_boundary Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Lyc says 500F is max for short term hi power, 400F is max recommended for= =20 continuous operation. Sensible people often suggest that lower temps lea= d=20 to longer engine life. 400F or so for short term, 350F or so for=20 continuous.=20 =20 Grayhawk =20 =20 In a message dated 5/31/2013 6:36:04 A.M. Central Daylight Time, =20 gary21sn@hotmail.com writes: =20 What is the cylinder temperature red line on Lycoming 320/360's? =20 Gary ----- Original Message -----=20 From: _Colyn Case_ (mailto:colyncase@earthlink.net) =20 To: _Lancair Mailing List_ (mailto:lml@lancaironline.net) =20 Sent: Thursday, May 30, 2013 8:58 PM Subject: [LML] Re: Lancair 360 CHT during climb Giles, =20 I don't know what it takes to get CHT's on a 360 in range but the real=20 question is what does the engine like? GAMI/APS argue that the metal of t= he=20 cylinders is getting steadily softer as you go up in temp so they like to= =20 see 380. The engine mfg's tend to list higher numbers and say that those= =20 numbers are considered in the engineering. Personally, I run my (IV-P=20 TSIO-550) engine hard but I don't like to see more than 380. 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 article by Mike = Busch in=20 which he says that at 400 degrees the cylinder is half as strong as when= =20 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 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 A&P sho= uld=20 be able to address those but make sure he follows manufacturer's=20 recommendations on the fuel setup. I've seen more than one mechanic set t= he fuel=20 flow way below manufacturer's recommendations. (Too high will ruin your da= y=20 too). If you have not taken the Advanced Pilot Seminars course on engine =20 management, I highly recommend it. It's available on line at=20 _www.advancedpilot.com_ (http://www.advancedpilot.com/) . If the engine cooling is not adequate, then hopefully one of the 360 guys= =20 can tell you how to fix that. On the IV-P engine installation, it takes= =20 some baffle mods and air guides to get it right. Colyn On May 30, 2013, at 11:47 AM, Gary Edwards wrote: =20 Same here. Temperatures routinely over 400. So 380 to 415 is ok to me. =20 Gary LNC2 320 ----- Original Message ----- From: _Matt_ (mailto:mattinlosangeles@yahoo.com)=20 To: _lml@lancaironline.net_ (mailto:lml@lancaironline.net)=20 Sent: Thursday, May 30, 2013 7:35 AM Subject: [LML] Re: Lancair 360 CHT during climb My 360 runs that hot and has 1700 hours on the engine. I would say it is= =20 fine. In the summer it can even get that hot in cruise. Not saying it=20 wouldn't be nice if it ran cooler but again 1700 hours on the engine and s= he=20 still flies. I live in Southern California so summer is very hot.=20 Matt Sent from my iPhone On May 30, 2013, at 5:20 AM, steve <_n5276j@aol.com_=20 (mailto:n5276j@aol.com) > wrote: 380 is OK 415 is not, can you richen to bring down under 400? I would=20 suggest reducing power to keep it under 400 until you fix the problem, mos= t=20 likely your baffling. Be sure you are sealed.=20 =20 =20 -----Original Message----- From: Gilles Canese <_gilles.canese@sfr.fr_ (mailto:gilles.canese@sfr.fr) > To: lml <_lml@lancaironline.net_ (mailto:lml@lancaironline.net) > Sent: Wed, May 29, 2013 5:44 pm Subject: [LML] Lancair 360 CHT during climb Hello I am a new Lancair 360 owner and I have a question about CHT during= =20 climbing At=20 full power after take off, CHT 's are between 380 and 415 oF, is it=20 normal for=20 a 360? =20 Thanks for the answers=20 =20 Gilles=20 =20 =20 Envoy=E9 de mon iPad -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l --part1_6aeb2.7d2341b1.3ed9fdcb_boundary Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable
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:
=
What is the cylinder temperature red line on Lycoming 320/360's?
 
Gary
----- Original Message -----
From: Colyn Case
To: Lancair Mailing List
Sent: Thursday, May 30, 2013 8:5= 8=20 PM
Subject: [LML] Re: Lancair 360 C= HT=20 during climb

Giles, =20

I don't know what it takes to get CHT's on a  360 in range bu= t the=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.

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_av= iator_59_egt_cht_and_leaning_198162-1.html

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).

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.

If the engine cooling is not adequate, then hopefully one of the 3= 60=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.

Colyn

On May 30, 2013, at 11:47 AM, Gary Edwards wrote:
Same here.  Temperatures routinely over 400.  So 380 to = 415=20 is ok to me.
 
Gary
LNC2 320
----- Original Message -----
From: Matt
To: lml@lancaironline.net
Sent: Thursday, May 30, 2013 7:3= 5=20 AM
Subject: [LML] Re: Lancair 360 CHT = during=20 climb

My 360 runs that hot and has 1700 hours on the engine.  I w= ould=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. 

Matt

Sent from my iPhone

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

<= /DIV>
380 is OK 415 is not, can you richen to bring down under 400?&= nbsp;=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. 
 
 
-----Original=20 Message-----
From: Gilles Canese <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

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=E9 de mon iPad
--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html
<= /SPAN>

<= /BODY> --part1_6aeb2.7d2341b1.3ed9fdcb_boundary--