Return-Path: Received: from [65.54.241.203] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.2) with ESMTP id 420929 for flyrotary@lancaironline.net; Sat, 18 Sep 2004 22:22:35 -0400 Received-SPF: none receiver=logan.com; client-ip=65.54.241.203; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.168.112]) by hotmail.com with Microsoft SMTPSVC(5.0.2195.6713); Sat, 18 Sep 2004 19:03:33 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 18 Sep 2004 19:03:33 -0700 Received: from 65.54.97.198 by bay3-dav8.bay3.hotmail.com with DAV; Sun, 19 Sep 2004 02:03:33 +0000 X-Originating-IP: [65.54.97.198] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: Renesis Temps, Lynn? Date: Sat, 18 Sep 2004 22:02:59 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B8_01C49DCB.428E23F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0006.2205 Seal-Send-Time: Sat, 18 Sep 2004 22:02:59 -0400 Message-ID: X-OriginalArrivalTime: 19 Sep 2004 02:03:33.0281 (UTC) FILETIME=[DDD56910:01C49DEC] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_00B8_01C49DCB.428E23F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We're work'n you overtime Lynn, hope you got time for one more. I'm almost out of ideas on what is driving the water temps up on my = Renesis installation. It has the same cooling system as on the 89 = vintage engine I've been flying for the past 4 years or so. At low = power settings (about 6 gph fuel burn) the water temp is about 15 = degrees higher than it used to be. Oil temp is same as before. I have = almost exhausted all my ideas on what is causing this. I am fairly = certain that the cooling system is actually dissipating more heat at any = given power setting than it was with old engine. There are a few clues that lead me to think that it may be the longer = (and additional) exhaust path through the block that leads to the higher = coolant temps. One of them is that the higher temps don't seem to be = causing a problem since the temps don't seem to go up as much when power = is added. I.e., the old engine would heat up about 30 degrees when = going from low power level flight to high power climb and the Renesis = will go up about half that so that they end up being about the same. = Still, it's very disconcerting to see them up so high to start with. = Another clue is that the coolant temp after the rads is about the same = as on old engine (higher coolant temp delta through rad). Have you heard any feedback from Renesis racers (are there any?) = indicating higher coolant temps? Tracy (hoping I can ignore the temps and get on with other stuff) PS: Going through a website server change so it's down for up to a week = or so. ------=_NextPart_000_00B8_01C49DCB.428E23F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
We're work'n you overtime Lynn, hope you got time for one = more.
 
I'm almost out of ideas on what is driving the water temps up on my = Renesis=20 installation.  It has the same cooling system as on the 89 vintage = engine=20 I've been flying for the past 4 years or so.  At low power settings = (about=20 6 gph fuel burn) the water temp is about 15 degrees higher than it used = to=20 be.  Oil temp is same as before.  I have almost exhausted all = my ideas=20 on what is causing this.  I am fairly certain that the cooling = system is=20 actually dissipating more heat at any given power setting than it = was with=20 old engine.
 
There are a few clues that lead me to think that it may = be the=20 longer (and additional) exhaust path through the block that leads to the = higher=20 coolant temps.   One of them is that the higher = temps don't=20 seem to be causing a problem since the temps don't seem to go up as much = when=20 power is added.  I.e., the old engine would heat up about 30 = degrees when=20 going from low power level flight to high power climb and the Renesis = will go up=20 about half that so that they end up being about the same.  Still, = it's very=20 disconcerting to see them up so high to start with.  Another = clue is=20 that the coolant temp after the rads is about the same as on old engine = (higher=20 coolant temp delta through rad).
 
Have you heard any feedback from Renesis racers (are there any?) = indicating=20 higher coolant temps?
 
Tracy  (hoping I can ignore the temps and get on with other=20 stuff)
 
PS:  Going through a website server change so it's down for up = to a=20 week or so.
------=_NextPart_000_00B8_01C49DCB.428E23F0--