REFLECTOR: Oil cooler air flow

[Laurence Coen]

BlankI was experiencing oil temperatures close to the 230 F limit on my 
Franklin powered SE/RG.  I have the stronger spring installed in the oil 
bypass but still have the 1/2" oil lines and standard size oil cooler.  Rick 
Lavoie did a bunch of things to solve the problem, all of which work.  I 
wanted to avoid replacing the oil cooler and replacing the 1/2" lines with 
5/8".  Being a lazy guy, this seemed like way too much work.  I remembered 
when folks went to the NACA top scoops instead of the armpits,  airflow was 
improved by adding a couple of VG's out front.  Since it's cheap and easy to 
try, I did.  No science involved.  I stuck on a pair made of angle aluminum 
that I though looked about right.  To my amazement,  my oil temperatures 
dropped 20 F.

Larry Coen
N136LC
SE/RG Franklin/IVO

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