Flex baffles for Supercub oil cooler and air intake

[cubscout]

Has anyone come up with a good simple application for flexible baffles to improve air flow through the stock nosebowl mounted oil cooler and the lower cowl air intake? There are some good discussions about minimizing high pressure flow on the bottom side of the engine, but this should also improve airflow through the oil cooler and carburetor air intake. In my case it's a L-21B with the "square" air intake on an 0-320 widedeck.

I didn't pick up ideas for this at Johnson Crick this year, but lots of other good ideas there.

Dave Johnson used to put some closed-cell foam on the cowl side of the oil cooler on most of his 180 conversions, but I always thought this was a little hokey. Obviously one wants to avoid chafing the oil cooler, fittings, and lines, as well as the carburetor air box.

Pictures appreciated.

Thanks. cubscout

[Steve Pierce]

Curt, I have seen thick felt put around the oil cooler to seal off air going around it. Not sure on the square filter Super Cubs but Piper had a leather seal there on the Short Wings. Made a difference on differential pressure when installed on my Dad's Clipper which brought the oil temp down. The new leather seal fit between the airbox and airfilter but didn't last very long. He made one out of baffle material and it is working very well.