Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 05 May 2003 08:44:34 -0400 Message-ID: X-Original-Return-Path: Received: from smtp03.mrf.mail.rcn.net ([207.172.4.62] verified) by logan.com (CommuniGate Pro SMTP 4.1b4) with ESMTP id 2333482 for lml@lancaironline.net; Mon, 05 May 2003 07:09:00 -0400 Received: from 208-59-158-67.s67.tnt2.frdb.va.dialup.rcn.com ([208.59.158.67] helo=OFFICE) by smtp03.mrf.mail.rcn.net with smtp (Exim 3.35 #4) id 19Cdq4-0002XR-00 for lml@lancaironline.net; Mon, 05 May 2003 07:08:56 -0400 X-Original-Message-ID: <055b01c312f6$d5ed0140$bd9f3bd0@OFFICE> From: "Bill & Sue" X-Original-To: "Lancair Mailing List" References: Subject: L-320/360 Oil Cooling X-Original-Date: Mon, 5 May 2003 07:09:44 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0558_01C312D5.4E6B6160" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_0558_01C312D5.4E6B6160 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Berni, Like Moondog, I have just one small (5 vane) oil cooler. It's mounted = on the firewall. I built a NACA scoop on the left side of the cowling by = enlarging the drawing of the cockpit vent in the manual by 2X. Behind = the NACA scoop is a plenum that gradually enlarges to slow the air and = build pressure. That is connected by an extremely short (1") piece of 3" = scat to another plenum mounted to the oil cooler. That plenum is sealed = to the oil cooler with RTV so that every molecule that comes in the NACA = scoop exits the back side of the oil cooler. My oil temps reach 180 in a = climb on a hot day, generally around 165 in cruise. This is actually too = cool and I'm going to have to put a butterfly restrictor in one of these = days.=20 My guess is that you may not need a second oil cooler, just a more = efficient way to get more air through the existing one.=20 If you'd like pictures, let me know and the next time I have the = cowling off I'll take some, or we can take a look at SFQ on the 17th. Bill harrelson@erols.com N5ZQ LNC2 O-320 VA42 Fredericksburg, VA ------=_NextPart_000_0558_01C312D5.4E6B6160 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
Hello Berni,
 
Like Moondog, I have just one small = (5 vane) oil=20 cooler. It's mounted on the firewall. I built a NACA scoop on the left = side of=20 the cowling by enlarging the drawing of the cockpit vent in the manual = by 2X.=20 Behind the NACA scoop is a plenum that gradually enlarges to slow the = air and=20 build pressure. That is connected by an extremely short (1") piece of = 3" scat=20 to another plenum mounted to the oil cooler. That plenum  is = sealed to=20 the oil cooler with RTV so that every molecule that comes in the = NACA=20 scoop exits the back side of the oil cooler. My oil temps reach 180 in = a climb=20 on a hot day, generally around 165 in cruise. This is actually too = cool and=20 I'm going to have to put a butterfly restrictor in one of these days.=20
 
My guess is that you may not = need a=20 second oil cooler, just a more efficient way to get more air = through the=20 existing one.
If you'd like pictures, let me know = and the next=20 time I have the cowling off I'll take some, or we can take a look at = SFQ on=20 the 17th.
 
Bill
harrelson@erols.com
N5ZQ  LNC2  O-320  = VA42 =20 Fredericksburg, VA
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