X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta09.emeryville.ca.mail.comcast.net ([76.96.30.96] verified) by logan.com (CommuniGate Pro SMTP 5.3.7) with ESMTP id 4319013 for flyrotary@lancaironline.net; Wed, 19 May 2010 00:01:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.96; envelope-from=n3773@comcast.net Received: from omta17.emeryville.ca.mail.comcast.net ([76.96.30.73]) by qmta09.emeryville.ca.mail.comcast.net with comcast id KFRz1e0071afHeLA9G1G4c; Wed, 19 May 2010 04:01:16 +0000 Received: from rv8 ([71.237.248.186]) by omta17.emeryville.ca.mail.comcast.net with comcast id KG1F1e00T422aQ78dG1GlC; Wed, 19 May 2010 04:01:16 +0000 Message-ID: Reply-To: "kevin lane" From: "kevin lane" To: "flyrotary" Subject: ground test cooling Date: Tue, 18 May 2010 21:01:03 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_008B_01CAF6CD.39D21BC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_008B_01CAF6CD.39D21BC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I would like to run my engine on it's test stand without the prop. I'd = like to rig up electric fans to blow thru the radiators. will I have = better luck with a leaf blower or one of those squirrel cage type = blowers? the leaf blower has high velocity, but it seems the big = squirrel cage blowers [like used in forced air furnaces] move a large = quantity of air and may handle back pressure better. I assume others = have already figured this out. I quit when water hit 210=B0. the leaf = blower I had on the water rad didn't seem to make a huge difference, but = my ducting was a pretty poor first attempt. my tests so far have had no potential of runaway rpms, plus the MSD = ignition has rev limiters, so I am not worried about that. being killed = by a prop is a MUCH more potential accident. I have a wood prop and is = was too scary to be around when mounted. I don't have water at the = airport, so that solution isn't too easy, I'd have to bring water and = pump it. at some point I'm going to have to address the muffler too. = last run got up to 4000rpm. damn that is loud, even with my noise = canceling headsets turned on. my new s/s exhaust manifold is starting = to turn a golden color. KevinLane Carpentry www.KevinLaneCarpentry.com ------=_NextPart_000_008B_01CAF6CD.39D21BC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I would like to run my engine on it's = test stand=20 without the prop. I'd like to rig up electric fans to blow thru = the=20 radiators. will I have better luck with a leaf blower or one of = those=20 squirrel cage type blowers? the leaf blower has high velocity, but = it=20 seems the big squirrel cage blowers [like used in forced air furnaces] = move a=20 large quantity of air and may handle back pressure better. I = assume others=20 have already figured this out. I quit when water hit 210=B0. = the leaf=20 blower I had on the water rad didn't seem to make a huge difference, but = my=20 ducting was a pretty poor first attempt.

my tests so far have had no potential = of runaway=20 rpms, plus the MSD ignition has rev limiters, so I am not worried about=20 that. being killed by a prop is a MUCH more potential = accident. I=20 have a wood prop and is was too scary to be around when mounted. I = don't=20 have water at the airport, so that solution isn't too easy, I'd have to = bring=20 water and pump it. at some point I'm going to have to address the = muffler=20 too. last run got up to 4000rpm. damn that is loud, = even with=20 my noise canceling headsets turned on. my new s/s exhaust manifold = is=20 starting to turn a golden color.

KevinLane Carpentry
www.KevinLaneCarpentry.com=

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