Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Sat, 30 Nov 2002 15:28:58 -0500 Message-ID: X-Original-Return-Path: Received: from dc-mx04.cluster1.charter.net ([209.225.8.14] verified) by logan.com (CommuniGate Pro SMTP 4.0.2) with ESMTP id 1891452 for flyrotary@lancaironline.net; Fri, 29 Nov 2002 23:28:05 -0500 Received: from [68.116.130.193] (HELO dell) by dc-mx04.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 35306112 for flyrotary@lancaironline.net; Fri, 29 Nov 2002 23:28:04 -0500 X-Original-Message-ID: <000a01c29828$9bfc1d20$c1827444@dell> From: "Bill Eslick" X-Original-To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Radiator plumbing X-Original-Date: Fri, 29 Nov 2002 22:26:09 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 > This is interesting and good data to have, I have a couple of questions that > will help me interpret pump test results also. > > 1. If I remember right, you are using 3/4" hose to each core, with 3/4" hose > back to a collector near the pump, is that correct? That is correct. > 2. Did the 30 degree drop manifest itself before or after you did the > modification and put in a thermostat? If before -- I would expect that it > also lowered your operating temperature of the engine, if after I would > suggest that the thermostat is doing its job and cutting the flow rate due to > cooler weather, and keeping the outlet temp of the flow to the set point. If > that is the case the performance during 90 degree weather will be very > interesting to observe. It really didn't get cool outside until after I put in the thermostat, but I think your observation is correct. The thermostat is reducing the radiator flow. I have pre-threaded the bypass hole for a pipe plug in case I need to pull the thermostat in hot weather. Bill Eslick