X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 18 Jul 2010 08:35:49 -0400 Message-ID: X-Original-Return-Path: Received: from imr-ma06.mx.aol.com ([64.12.78.142] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4396919 for lml@lancaironline.net; Sat, 17 Jul 2010 23:22:06 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.78.142; envelope-from=Sky2high@aol.com Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) by imr-ma06.mx.aol.com (8.14.1/8.14.1) with ESMTP id o6I3LKg4021826 for ; Sat, 17 Jul 2010 23:21:20 -0400 Received: from Sky2high@aol.com by imo-ma02.mx.aol.com (mail_out_v42.9.) id q.d0d.77b5db10 (45278) for ; Sat, 17 Jul 2010 23:21:17 -0400 (EDT) Received: from magic-d17.mail.aol.com (magic-d17.mail.aol.com [172.19.155.133]) by cia-mc03.mx.aol.com (v129.4) with ESMTP id MAILCIAMC038-b0de4c42732c156; Sat, 17 Jul 2010 23:21:16 -0400 From: Sky2high@aol.com X-Original-Message-ID: <8c606.4dee6d21.3973cd2c@aol.com> X-Original-Date: Sat, 17 Jul 2010 23:21:16 EDT Subject: Re: [LML] Re: My airplane is running HOT X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_8c606.4dee6d21.3973cd2c_boundary" X-Mailer: AOL 9.5 sub 155 X-AOL-ORIG-IP: 67.175.87.113 X-AOL-IP: 172.19.155.133 X-Spam-Flag:NO X-AOL-SENDER: Sky2high@aol.com --part1_8c606.4dee6d21.3973cd2c_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Bryan, What are your temps in cruise? What is your climb technique? My 320 would overheat if I climbed out at Vx or Vy. My takeoff fuel consumption is 15 gph. I climb at 135 KIAS, 2600 rpm, WOT and lean in the climb to about the same EGT indication as seen during full power ops (about 1310F) with over 1000 fpm up to abut 5000. On a very hot day, oil may reach 190F and the hottest cyl may touch 400F. If things seem too hot, I will go to 145 KIAS. Cruise temps at 25 squared are 180F or less for oil and 340-370 CHTs running ROP and lower if running LOP. Scott Krueger IO320 In a message dated 7/17/2010 1:40:57 P.M. Central Daylight Time, vonjet@gmail.com writes: Exit area is standard 360 cowling exit. Can see why it would behave any different than any other lancair out there. Its actually a pretty good size opening. On Fri, Jul 16, 2010 at 8:21 PM, <_marv@lancair.net_ (mailto:marv@lancair.net) > wrote: Posted for Bryan Wullner <_vonjet@gmail.com_ (mailto:vonjet@gmail.com) >: Anybody have any ideas or advice for the following situation: Lancair 360 with carbed 360 (180hp) engine. 475 hours on it about. Chrome Cylinders. I have a Plenum cooling system and larger cowling inlets. (Zavatson's cowling and plenum system) Oil cooler is mounted at the front inlet. Oil wont cool in climb and will go up to 230 and probably higher if not stabilized. CHT's are all hot in climbs and will go to 440 no problem. Cant figure it out. Motor runs great, compression good, boroscoped fine, mag timing good. All leaks in plenum or baffling are sealed. Probes were checked out ok. Only thing I haven't checked is the vernotherm. Thanks for any advice. Bryan [How big are your cooling air outlets and where are they located? Sounds like you're getting the cooling air in but not letting it out. Just a thought. ] -- For archives and unsub _http://mail.lancaironline.net:81/lists/lml/List.html_ (http://mail.lancaironline.net:81/lists/lml/List.html) --part1_8c606.4dee6d21.3973cd2c_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Bryan,
 
What are your temps in cruise?
 
What is your climb technique?
 
My 320 would overheat if I climbed out at Vx or Vy.  My takeoff= fuel=20 consumption is 15 gph.  I climb at 135 KIAS, 2600 rpm, WOT and lean= in the=20 climb to about the same EGT indication as seen during full power= ops=20 (about 1310F) with over 1000 fpm up to abut 5000.  On a very hot= day,=20 oil may reach 190F and the hottest cyl may touch 400F.  If things see= m too=20 hot, I will go to 145 KIAS.  Cruise temps at 25 squared are 180F or= less=20 for oil and 340-370 CHTs running ROP and lower if running LOP. 
 
Scott Krueger
IO320
 
In a message dated 7/17/2010 1:40:57 P.M. Central Daylight Time,=20 vonjet@gmail.com writes:
Exit=20 area is standard 360 cowling exit. Can see why it would behave any diffe= rent=20 than any other lancair out there. Its actually a pretty good size openin= g.=20



On Fri, Jul 16, 2010 at 8:21 PM, <marv@lancair.net> wrote:
Posted for Bryan= Wullner=20 <vonjet@gmail.com>:

 Anybody have= any ideas=20 or advice for the following situation:
 
 Lancair 360= with=20 carbed 360 (180hp) engine. 475 hours on it about. Chrome
 Cyli= nders.=20 I have a Plenum cooling system and larger cowling=20 inlets.
 (Zavatson's cowling and plenum system)
 Oil= cooler=20 is mounted at the front inlet.
 Oil wont cool in climb and wil= l go=20 up to 230 and probably higher if not
 stabilized. CHT's are al= l hot=20 in climbs and will go to 440 no problem. Cant
 figure it=20 out.
 Motor runs great, compression good, boroscoped fine, mag= =20 timing good. All
 leaks in plenum or baffling are=20 sealed.
 Probes were checked out ok.
 
 Only= thing I=20 haven't checked is the vernotherm.
 
 Thanks for any= =20 advice.
 Bryan

[How big are your cooling air outlets an= d=20 where are they located?  Sounds like you're getting the cooling= air in=20 but not letting it out.  Just a thought.  <Marv> = =20 ]

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