Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Wed, 17 Dec 2003 11:51:20 -0500 Message-ID: X-Original-Return-Path: Received: from imo-r05.mx.aol.com ([152.163.225.101] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2894722 for lml@lancaironline.net; Wed, 17 Dec 2003 11:34:58 -0500 Received: from Tubamanflies@aol.com by imo-r05.mx.aol.com (mail_out_v36_r4.8.) id q.35.4172db2e (3866) for ; Wed, 17 Dec 2003 11:34:54 -0500 (EST) From: Tubamanflies@aol.com X-Original-Message-ID: <35.4172db2e.2d11dfae@aol.com> X-Original-Date: Wed, 17 Dec 2003 11:34:54 EST Subject: Re: [LML] Re: plenum to cowl connection X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_35.4172db2e.2d11dfae_boundary" X-Mailer: 8.0 for Windows sub 6024 --part1_35.4172db2e.2d11dfae_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have been reading about the use of a plenum over the top of the engine to give a better cooling seal. I am just wondering if there is really that much of an advantage. My bird just uses the upper cowling with the blue silicone gaskets on the baffling. The lower front seals against the lower cowl the same way. The oil cooler is mounted on the lower baffling just ahead of the front cylinder. With this arrangement both CHT and Oil temps are very good. With the tightness of the Lancair cowl in my opinion a seperate plenum over the top is overkill. Thank for the good discussion and infromation Ray Gardner --part1_35.4172db2e.2d11dfae_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable I have been reading about the use o= f a plenum over the top of the engine to give a better cooling seal.  I= am just wondering if there is really that much of an advantage.  My bi= rd just uses the upper cowling with the blue silicone gaskets on the bafflin= g.  The lower front seals against the lower cowl the same way. &nb= sp; The oil cooler is mounted on the lower  baffling just ahead of the=20= front cylinder.

With this arrangement both CHT and Oil temps are very good. 

With the tightness of the Lancair cowl in my opinion a seperate plenum over=20= the top is overkill.

Thank for the good discussion and infromation

Ray Gardner  --part1_35.4172db2e.2d11dfae_boundary--