Return-Path: Received: from imo-m21.mx.aol.com ([64.12.137.2] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 813247 for flyrotary@lancaironline.net; Mon, 21 Mar 2005 01:58:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.2; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m21.mx.aol.com (mail_out_v37_r3.8.) id q.146.4127e555 (3996) for ; Mon, 21 Mar 2005 01:57:30 -0500 (EST) From: WRJJRS@aol.com Message-ID: <146.4127e555.2f6fca59@aol.com> Date: Mon, 21 Mar 2005 01:57:29 EST Subject: Re: [FlyRotary] Re: BMW and EWP To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1111388249" X-Mailer: 9.0 for Windows sub 5032 -------------------------------1111388249 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 3/20/2005 9:05:40 PM Pacific Standard Time, canarder@frontiernet.net writes: I seem to have missed a lot of posts. When I'm going to be out of town for more than couple of days I stop the list. That could explain some of it. 12 GPM and 34 GPM is a pretty wide window of stuff that apparently works. 34 is like cycling your whole coolant supply through the system every 4 seconds or so. That just seems really really fast to me. It was 40+ years ago last time I studied this stuff, so all I've got is intuitive guesses. Which is, of course, exactly what I keep complaining about :o) ... Jim S. Jim, I agree that 12-34 GPM is a big window. One of the items that always drove my skecptisim over the EWP is that in almost every thermodynamic text I've read turbulent flow is cited as helpful to heat transfer. This would be short of cavitation of course. Volume is always the second item, or sometimes interchangeable. I'm sure this is what drives the "other list's" refusal to believe the EWP will work. I AM willing to accept a actual test. Thanks Todd Leon and whoever has tried. Somewhere there is an incorrect assumption being made. I'd like to know where, so I'd be more comfortable, but I am always willing to believe my eyes, and my temperature guage! As a side item, when I spoke with Steve Wienzerl the designer of the newer PowerSport reduction drive, he said they tested the EDWP to max flow. The claimed volume was 55 GPM somewhere between 6500 and 7000 RPM. He was sure this was on the ragged edge of caviitation. He wasn't a EWP believer, in fact he wanted even more flow than they were getting! Bill Jepson -------------------------------1111388249 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 3/20/2005 9:05:40 PM Pacific Standard Time, canarder= @frontiernet.net writes:
I seem to have missed a lot of posts.  Wh= en I'm going to be out of town
for more than couple of days I stop the l= ist.  That could explain some
of it.  12 GPM and 34 GPM is a p= retty wide window of stuff that
apparently works.  34 is like cycli= ng your whole coolant supply through
the system every 4 seconds or so.&n= bsp; That just seems really really fast to
me.  It was 40+ years ag= o last time I studied this stuff, so all I've
got is intuitive guesses.<= BR>Which is, of course, exactly what I keep complaining about :o) ... Jim S.=
Jim, I agree that 12-34 GPM is a big window. One of the items that alwa= ys drove my skecptisim over the EWP is that in almost every thermodynamic te= xt I've read turbulent flow is cited as helpful to heat transfer. This would= be short of cavitation of course.  Volume is always the second item, o= r sometimes interchangeable. I'm sure this is what drives the "other list's"= refusal to believe the EWP will work. I AM willing to accept a actual test.= Thanks Todd Leon and whoever has tried. Somewhere there is an incorrect ass= umption being made. I'd like to know where, so I'd be more comfortable, but=20= I am always willing to believe my eyes, and my temperature guage! As a side=20= item, when I spoke with Steve Wienzerl the designer of the newer PowerSport=20= reduction drive, he said they tested the EDWP to max flow. The claimed volum= e was 55 GPM somewhere between 6500 and 7000 RPM. He was sure this was on th= e ragged edge of caviitation. He wasn't a EWP believer, in fact he wanted ev= en more flow than they were getting!
Bill Jepson
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