> >Ken Welter wrote:

 > >
 > > I have been running two mazda oil coolers in parallel and the oil and
 > > water temp has been running at 200 on both I removed the mazda
 > > coolers and installed a 80000 btu fluidine cooler and the water temp
 > > went to 240 and the oil went to 250 at that point I added one mazda
 > > cooler back on and both water and oil temp went to 225 so I went back
 > > to the mazda coolers I guess if it works don't fix it.

Mike Wills wrote:

 Ken,

   A little clarification please. I assume this means you've been running
 the  2 stock Mazda air-oil coolers to cool the oil in addition to a coolant
 radiator? How large is the radiator?

   I also assume that the Fluidyne unit you tried was a water-oil cooler?
 Did you up the size of the radiator when you made this change?

   Fred Moreno estimated that we would need a 100,000 BTU water-oil cooler
 to do the job for a 180HP. So perhaps not too surprising that your
 experiment with the 80,000 BTU Fluidyne cooler didnt work. Particularly if
 you didnt increase your radiator size by 25 - 35%.

 >
 >Ken Welter wrote

Ken Welter wrote:

Yes I run two oil coolers for the oil and one 12 x 18 x 2 water
cooler and a water to water keel cooler to cool the engine for water
taxing and water take off with out the keel cooler the temps would
be higher than hell by the time I lifted of the water.I do plan on
putting a larger water cooler on and experimenting with the heat
exchanger I will let you no how it works out.

Will you be at Arlington Ken? Last time I saw your airplane it had no ducts
around the oil coolers. They were mounted on the back of the cabin.

BTW I would also like to get a ride in your Coot some time. I would
even fly up there just for the ride :-)

Paul Lamar
 
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