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Rusty ,
The
Pacific Oil cooler AeroClassic unit p/n 8000353 has 18 row and is close
to you evap core in size. The size is not on the web site but the
dimensions are the same as a Stewart warner unit. I will have to
look at the part number.
Joe
At 11:56 AM 12/20/2004 -0600, you (Russell Duffy) wrote:
1. Used the
early RV-4 FP prop cowl (40" FW to prop flange) which is about
1.5" longer than current version
2. Used the RX-5 Cosmo oil cooler which is shorter but
wider than the RX-7 cooler, and has ports more conveniently located than
the RX-7 cooler. It was a gift from my brother Barry who owned the
RX-5 donor car.
Thanks Tracy. That certainly
takes the mystery out of it. I originally had the RV-3 cowl
(they're now the same, but you trim the RV-3 shorter), and Fred made the
mount so the prop would end up where the Lycoming would have been on the
stock mount. When I replaced the cowl, I got the universal RV-3/-4
cowl, and decided to leave it full length, rather than trimming it
several inches to make it the same as the original RV-3 cowl. I
made up the difference with a very nice Saber prop hub extension.
If you have the same length cowl, and no prop extension, then your engine
is several inches farther from the FW than mine. I just made a note
to measure my FW to prop flange distance, so that will confirm it.
I would love to put the cooler under
the engine like Finn has it, but there's just no way with my exhaust in
the way. I'm pretty happy with the exhaust system, so I don't plan
to change that, which means I have to come up with another
solution.
-I could easily fit one of the FD
coolers, but I don't think that would be big enough.
-I could possibly fit an oil to water
heat exchanger, and use the original oil cooler location for a 3rd water
cooler. Don't care too much for this idea, mostly due to the extra
weight, and complexity of hoses. Also, I'd still have to worry
about bursting the oil cooler on the exchanger unless I knew is was
robust enough.
-I could use a stock 2nd gen cooler,
and let the back end dip under the exhaust pipes. This would drop
the rear edge of the cowl a few inches, which would add some drag.
On the other hand, it would block some high speed air from hitting the
muffler, and add to the cooling exit area. Another downside
is that it's still putting the oil cooler very close to, and directly in
front of the exhaust.
-Finally, I could find another type of
oil cooler, which would be closer to the size of the evap
core. In the old archives, Mike Wills mentioned
Fluidyne. I had one of their radiators in my FD, and it was very
well built. Here's a link to the oil cooler family I'm thinking
about. They look pretty good to me. What do you think?
http://www.fluidyne.com/pl_theoc.html
Thanks,
Rusty (waiting for a giant estimate
for replacing my dead heat pump)
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