I have my new rad test box half built.
This time I am using the actual rad I will be using
in the airplane. It is sideways with a simple wedge shaped
duct. I will test it with and without three venetian blind type
cowl flaps.  I moved it up further from the roof of the van to be
sure I had clean horizontal air.

The opening is 5 inches high by 24 inches wide or 33% of the rad area.

My rad is a stock Howe Racing $200 all aluminum. 27 1/2 inches wide
over all. 24 inch wide core. 14 3/4  inches fore and aft core.
The core is 2.25 inches thick.

Paul Lamar

Should do the job, Paul.  I calculated that your core volume is approx 15%
greater than the total core volume of the two evaporator cores Tracy and I
use for radiators (core 11x9x3.5, two each).  So assuming that the airflow
is at least as good as we have in our installations (and from your research
and analysis I would presume that you expect better) then I estimate that
your system should provide adequate cooling for approx 210HP continous.

Ed Anderson

 
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