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From: Lehanover@aol.com
Message-ID: <1ac.2f464c9d.2f11a509@aol.com>
Date: Sat, 8 Jan 2005 16:05:13 EST
Subject: Re: [FlyRotary] oi/air looking like oil/water  Re: oi/water Exchanger  [FlyRo...
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In a message dated 1/8/2005 6:19:26 AM Central Standard Time, 
eanderson@carolina.rr.com writes:

<< Easy to jump to the conclusion that a package which has oil and coolant 
flowing into it as an oil/coolant heat exchanger when its really not.
 
 But, Lynn would clearly have a better handle on this - how about it Lynn? >>

There is only air cooling. How you transfer the heat to it is the question.

 I spent a year trying to get a very expensive Callies (the crank shaft 
people) oil to water cooler to work in the race car. Actually it worked great. The 
oil temp became whatever the water temp was. 

Unfortunately the water temp went from 175 to 200+ and the oil temp went from 
230+ to 200. 

I cut the Callies up with my zip gun and recovered the conventional oil to 
air cooler inside it. It is now the trans cooler, and does a good job.

I use three Setrabs for oil cooling. Oil temps under 180 on a hot day. Water 
180 on a hot day. Needs the thermostat and radiator tape on cool days.

Daryl Drummond says that oil temps above 160 cost power big time, so we want 
to stay below that if possible. The Setrabs are nothing like ideal 
installations, and there is more there to be had with a little time.

One of the Setrabs got itself run over by a Mustang and twisted into a potato 
chip shape. I put it on a 2 X 6 with some shims and another 2 X 6 and more 
shims and jacked it up under the van. Came out real nice and is still on the car.

Getting the oil's heat into the water is the easy part. 

I notice that on most formula cars they use the very small super fine fin 
plastic cap radiator's from small foreign cars. One on each side of the car. They 
seem to be about one inch thick with very fine close packed fins. 


Lynn E. Hanover