X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2880818 for flyrotary@lancaironline.net; Thu, 01 May 2008 19:29:52 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([75.191.186.236]) by cdptpa-omta01.mail.rr.com with SMTP id <20080501232915.MEMR19888.cdptpa-omta01.mail.rr.com@edward2> for ; Thu, 1 May 2008 23:29:15 +0000 Message-ID: <001d01c8abe3$31332360$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] radiator orientation? Date: Thu, 1 May 2008 19:29:24 -0400 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 Michael, I do not see any problems with that orientation of the GM evaporator cores. In fact, it may made it easier to flush trapped air out. Mine have the inlet/outlet on the bottom with no peacock on top to let out trapped air, I end up having to run the engine up to 5000 rpm a couple of times to flush all the trapped air out of the cores. When I drain the system and put fresh coolant back in, I normally find the cores about 2/3 filled with coolant the top 1/3 filled with air. You can tell if you have trapped air by feeling the radiator - it will be cooler where air occupies the space. One thing to keep in mind with your orientation is how your inlet ducts will match up. Generally a perpendicular orientation to the air flow makes it a bit easier to develop a good flowing duct. FWIW Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ----- Original Message ----- From: "Michael Silvius" To: "Rotary motors in aircraft" Sent: Thursday, May 01, 2008 7:29 PM Subject: [FlyRotary] radiator orientation? > > Anyonene see any issues of concern with instaling the radiators in the > vertical orientation as oposed to their normal orientation with the inlets > and outlet on the top. These are evaporator cores from a JMC Jimmy- Chevy > Blazer > > Michael in Maine > -------------------------------------------------------------------------------- > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html >