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Mike,
I have the largest (ECD54-329) plumbed between two 400 ci
water radiators. I can tell you it is very effective. With my cowling off,
extended full power ground runs I see oil temp trailing water temps by 40-50
degrees. Water at 180-200.
With lower cowl only, same conditions, the oil tracks the
water a little closer. 20-40 degrees. With full cowl the temps come up together
and stay together after about 170 degrees. I really think the ECD54-182 would
have worked. It would have also been much easer to plumb making the hoses
between my dual radiators much shorter and lighter.
Bobby
Thanks, I understand the heat has to go somewhere.
I havent done enough flight testing to say for sure, but what I have done
so far seems to indicate that I have excess cooling capacity on the
radiator side. Time will tell. If there is excess capacity, a water-oil
exchanger will definitely simplify my installation considerably.
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Tuesday, April 28, 2009 11:56
AM
Subject: [Norton AntiSpam] [FlyRotary]
Re: Mocal Oil Cooler ECD54-182
Mike,
You must upsize your radiator if you want to use the
oil-to-water exchanger as your sole oil cooler. It should work but you still
need enough heat exchanger to handle you BTU needs. So you would need a 20-30%
bigger radiator for things to work.
Bill Jepson
-----Original
Message-----
From: Mike Wills <rv-4mike@cox.net>
To: Rotary motors
in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 28 Apr 2009 9:21
am
Subject: [FlyRotary] Re: Mocal Oil Cooler ECD54-182
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 -----
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
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