Todd;
I think you’re thinking of my
installation – Mark has Fluidyne (or knockoff) unit.
I installed a C43-330 (which is the
largest of the C43 series) as an add-on to my oil/air cooler. It did just
what I wanted it to do; handle about 30% of the heat load from my 20B, which
reduced the oil temps by 15-18 F. These are not really high capacity coolers;
at least relative to the rotary needs.
You got a great price on an E54 dual
core. Are all the fins in good condition? They are relatively
easily damaged. That 182 unit should handle roughly the same heat load as mine –
so about half the requirement for a 2-rotor.
Mike: oil/water exchangers have the
advantage of being compact, but the disadvantage of the smaller delta T from
oil to cooling fluid; and, of course ultimately the heat has to get dumped to
the air, so the coolant circuit has to have the capacity to handle it. In
my case I had excess cooling ability on the coolant, so it worked out well.
Al G
-----Original Message-----
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Todd Bartrim
Sent: Monday, April
27, 2009 10:57 PM
To: Rotary motors in aircraft
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