Mayf,
I have a 502 Bowtie/400 turbo in a 90 Suburban 1500 that doesn't go anywhere
without a trailer behind it. Our biggest is an all steel 1970's era 32'
Philips horse trailer that's built like a tank. With 2 big horses, and all of
our equipment, it weighs in at 9500 pounds. My alum radiator (junk yard
special) was for a stick shift and my budget for a Jegs trans cooler was blown.
I found a 2" thick room-sized AC condenser with 3/8" tubes. I mounted it
up front and horizontally on the right inner fender with a small Nipondenso
cooling fan mounted on the underside pulling cooler air up from the road.
The trans fluid (regular petro) has stayed clean, bright red and smelling like
new. As I recall from SAE notes when ATF operates at 200*f for any length
of time service life goes to half of Mfgr normal change sched. And I'm pretty
sure it gets cut in half with subsequent 20-25*f increases in op-temp.
When I was crew chief on a winged supermodified car in the 70s, we had
occassional engine oil temp problems on dusty, muddy tracks. I sealed a forward
section of frame rail and filled it with a half gallon of water thru a
screw-in shrade valve hole, and pressurized it to 50 psi. A very small 1/8"
ball valve operated by a choke cable routed a length of brake tubing to the oil
cooler. The far end of the tubing was pinched off tight and a line of small
(maybe 1/32") holes faced the oil cooler. Toward the end of the race when the
cooler would choke up with dust and dirt, and oil temp started rising way up,
the driver opened the valve and sprayed down the oil cooler. It worked well
enough for the effort that went into it, and didn't have any further main
bearing wear problems.
Same principle could be applied using a pressurized, insulated air tank with
chilled water, a nitrous or 12v landscaping solenoid, and a fogging spray bar
across the radiator or trans cooler, and/or on top of the trans housing for
heavy uphill tows. The colder the top of the alum trans gets , the faster
heat will be carried off and the less work the cooler has to do. Only
problem is that going across the desert in 120 heat hauling a 5,000 pound
trailer might take a water tender and one of those towable air compressors.....
Mark C
Back in the '60's when Ed Tradup was running a digger, he had an old
> > International tow truck that he had stuffed a big GM V-8 with TH-400 into.
> > For a cooler he put a big AC condenser from the same car between the
> > frame rail's. It worked like a champ, not the best location but it was so
> > big
> > it
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