Finn Lassen wrote:

Well, so far I can't complain about oil cooling problems. Highest I've seen
(during 110 mph climbs are about 196F, although oil pan temps as high as 223F). I
did think about making the "scoop" variable, though. Also, I haven't really tried
Tracy's suggestion about putting some mesh or open foam at the rear part to dampen
any turbulence there. I guess once I get the prop repitched so the engine can work
harder during climbs, I may need to improve cooling.

Finn

Hi Finn, Tracy's trick of putting porous foam in the simple wedge duct 
towards the rear works to even out the air flow through the oil cooler but
it also cuts down the total amount of air getting through as it adds
to the oil cooler air flow restriction. This is a better way of doing it. It is 
a simple two dimensional curved piece of aluminum inside the intake duct.

Paul Lamar
 
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