Return-Path: Sender: (Marvin Kaye) To: flyrotary@lancaironline.net Date: Sun, 14 Dec 2003 13:13:56 -0500 Message-ID: X-Original-Return-Path: Received: from turkey.mail.pas.earthlink.net ([207.217.120.126] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2890414 for flyrotary@lancaironline.net; Sun, 14 Dec 2003 11:35:36 -0500 Received: from user-2injrqe.dialup.mindspring.com ([165.121.239.78] helo=Carol) by turkey.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 1AVZDS-0003XC-00 for flyrotary@lancaironline.net; Sun, 14 Dec 2003 08:35:34 -0800 X-Original-Message-ID: <004a01c3c260$412ef030$0000a398@Carol> From: "sqpilot@earthlink" X-Original-To: "flyrotary" Subject: evap core versus radiator X-Original-Date: Sun, 14 Dec 2003 10:35:14 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0047_01C3C22D.F5CC2720" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2727.1300 This is a multi-part message in MIME format. ------=_NextPart_000_0047_01C3C22D.F5CC2720 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi, fellow rotary enthusiasts.....I am confused regarding radiator = versus evaporator cores. Ed Klepeis can make a radiator for me that = measures overall 16 x 10 x 4 1/2, by sandwiching two 2 1/4" thick cores = together. Unfortunately, there are two 2" wide tanks on each end, which = reduces the cooling fin area to 12" x 10" x 4 1/2". I calculate that to = a total area of around 540. I have found an evap. core that measures 9 x 13 1/2 x 4 5/8" thick. = I believe that comes out to a total area of around 561. That would fit = perfectly in the cowling with even less modifications to inlets, etc. = (Read that as less work for me). I have heard on this forum that evap. = cores are a good choice for cooling, as they can take high pressures. = Is there anything else I should consider regarding radiator versus evap = core for cooling? Inlet and outlet tubes look to be around 5/8". The = core looks just like one from a GM Safari or Astro Van except for the = size difference. I don't know if the 5/8" inlet/outlet tubes would be = too restrictive to flow compared to a radiator that would be made with = 1" NPT inlet/outlets? My guess is that once the water gets inside = either the evap core or the radiator, flow is going to be restricted by = the tubing sizes inside the cooling device regardless of the = inlet/outlet sizes? I know that Ed Anderson, Tracy and others have had = success with evap cores. Any possible pros and cons would be much = appreciated. Thank you for your time and opinions. Paul Conner ------=_NextPart_000_0047_01C3C22D.F5CC2720 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hi, fellow rotary enthusiasts.....I am = confused=20 regarding radiator versus evaporator cores. Ed Klepeis can make a = radiator for=20 me that measures overall 16 x 10 x 4 1/2, by sandwiching two 2 1/4" = thick cores=20 together. Unfortunately, there are two 2" wide tanks on each end, which = reduces=20 the cooling fin area to 12" x 10" x 4 1/2". I calculate that = to a=20 total area of around 540.

I have found = an evap. core=20 that measures 9 x 13 1/2 x 4 5/8" thick. I believe that comes out = to a=20 total area of around 561. That would fit perfectly in the = cowling with=20 even less modifications to inlets, etc. (Read that as less work for = me). I=20 have heard on this forum that evap. cores are a good choice for cooling, = as they=20 can take high pressures. Is there anything else I should = consider=20 regarding radiator versus evap core for cooling? Inlet and outlet tubes = look to=20 be around 5/8". The core looks just like one from a GM Safari or = Astro Van=20 except for the size difference. I don't know if the 5/8" = inlet/outlet=20 tubes would be too restrictive to flow compared to a radiator that would = be made=20 with 1" NPT inlet/outlets? My guess is that once the water gets = inside=20 either the evap core or the radiator, flow is going to be = restricted by the=20 tubing sizes inside the cooling device regardless of the = inlet/outlet=20 sizes? I know that Ed Anderson, = Tracy and=20 others have had success with evap cores. Any possible pros and = cons would=20 be much appreciated. Thank you for your time and opinions. = Paul=20 Conner

------=_NextPart_000_0047_01C3C22D.F5CC2720--