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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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