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([198.162.160.133]) by mx.google.com with ESMTPS id g22sm650138rvb.16.2009.04.28.15.16.32 (version=SSLv3 cipher=RC4-MD5); Tue, 28 Apr 2009 15:16:32 -0700 (PDT) Subject: Re: [FlyRotary] Re: Mocal Oil Cooler ECD54-182 From: Todd Bartrim To: Rotary motors in aircraft In-Reply-To: References: Content-Type: multipart/related; type="multipart/alternative"; boundary="=-eWa00vNovTm6ImHitBd4" Date: Tue, 28 Apr 2009 15:14:58 -0700 Message-Id: <1240956898.3740.76.camel@Endurance> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 --=-eWa00vNovTm6ImHitBd4 Content-Type: multipart/alternative; boundary="=-BTWvufImqKs88uvpyLKP" --=-BTWvufImqKs88uvpyLKP Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Hi Mike; No, it's not my sole means and to be honest, I probably really don't even need it. However I've found that under certain conditions I have excess cooling on either one or the other. During extended climbs my coolant temp would rise much faster than the oil temp, but during cruise the coolant would drop to reasonable levels but the oil would stay high. Some of this is probably due to the fact that oil transfers heat much slower than water, but some may also be due to the location of my oil cooler intake on the bottom of the cowl. I do have plans to also improve on the intake as well, but in keeping with my foolish approach of changing many things at once I figured on using this as sort of a heat balance to keep both temps close to one another. Besides as a true instrument mechanic, I like shiny gadgets. :-! Todd C-FSTB On Tue, 2009-04-28 at 09:21 -0700, Mike Wills wrote: >  > > Todd, > > Are you using this as your sole means of oil cooling, or as a > supplement? I've always been intrigued by the idea of an oil-water > exchanger, but have yet to hear of anyone successfully using one as a > sole means of cooling a rotary in an aircraft application. Something > like this would sure simplify my plumbing and eliminate some weight. > I'm tempted. > > Mike Wills > RV-4 N144MW > ----- Original Message ----- > From: Todd Bartrim > To: Rotary motors in aircraft > Sent: Monday, April 27, 2009 11:57 PM > Subject: [FlyRotary] Mocal Oil Cooler ECD54-182 > > > > Hi Guys > Quite some while back Mark Sietle put a Mocal oil cooler > in his plane, which I was quite impressed with. Recently I > began watching ebay for one of these coolers and a few weeks > ago I hit paydirt. IRC, Mark was using the C43-330 which is a > fine looking piece of craftsmanship but are pricey little > devils at $350 apiece. They are 330 mm long and a single pass. > The E54 series offer 25% greater cooling in a comparable size, > while the ECD54 series are dual core and have double the > cooling capacity as the comparable size C43 cooler, but are > prohibitively expensive at ~$800. > I managed to get mine for $275usd and it was still new, > never used. The seller had 2 of them and since I only took one > there is still another available. He indicated that he would > re-list the other cooler on ebay, but I haven't seen it yet or > I'd have just posted the listing. So if anyone is interested > you can just contact him direct at > chines@pendragon-design.com . > I'm very impressed with mine as it is a very fine piece of > workmanship. It is only 182mm long but weighs in at just under > 3lbs. Attached are a few pics of it disassembled. > Thought I'd pass it along. > > Todd > C-FSTB > > > ______________________________________________________________ > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html --=-BTWvufImqKs88uvpyLKP Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit Hi Mike;
    No, it's not my sole means and to be honest, I probably really don't even need it. However I've found that under certain conditions I have excess cooling on either one or the other. During extended climbs my coolant temp would rise much faster than the oil temp, but during cruise the coolant would drop to reasonable levels but the oil would stay high. Some of this is probably due to the fact that oil transfers heat much slower than water, but some may also be due to the location of my oil cooler intake on the bottom of the cowl. I do have plans to also improve on the intake as well, but in keeping with my foolish approach of changing many things at once I figured on using this as sort of a heat balance to keep both temps close to one another.
Besides as a true instrument mechanic, I like shiny gadgets. :-!

Todd
C-FSTB


On Tue, 2009-04-28 at 09:21 -0700, Mike Wills wrote:

Todd,
 
 Are you using this as your sole means of oil cooling, or as a supplement? I've always been intrigued by the idea of an oil-water exchanger, but have yet to hear of anyone successfully using one as a sole means of cooling a rotary in an aircraft application. Something like this would sure simplify my plumbing and eliminate some weight. I'm tempted.
 
Mike Wills
RV-4 N144MW
----- Original Message -----
From: Todd Bartrim
To: Rotary motors in aircraft
Sent: Monday, April 27, 2009 11:57 PM
Subject: [FlyRotary] Mocal Oil Cooler ECD54-182


Hi Guys
    Quite some while back Mark Sietle put a Mocal oil cooler in his plane, which I was quite impressed with. Recently I began watching ebay for one of these coolers and a few weeks ago I hit paydirt. IRC, Mark was using the C43-330 which is a fine looking piece of craftsmanship but are pricey little devils at $350 apiece. They are 330 mm long and a single pass. The E54 series offer 25% greater cooling in a comparable size, while the ECD54 series are dual core and have double the cooling capacity as the comparable size C43 cooler, but are prohibitively expensive at ~$800.
    I managed to get mine for $275usd and it was still new, never used. The seller had 2 of them and since I only took one there is still another available. He indicated that he would re-list the other cooler on ebay, but I haven't seen it yet or I'd have just posted the listing. So if anyone is interested you can just contact him direct at chines@pendragon-design.com .
    I'm very impressed with mine as it is a very fine piece of workmanship. It is only 182mm long but weighs in at just under 3lbs. Attached are a few pics of it disassembled.
Thought I'd pass it along.

Todd
C-FSTB



--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
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