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[Bryan Cotton]

I perused my copies of the Bingeles books but did not find what I tried to describe above. I don't think it is an original idea, but you never know. They say memory is the second thing to go.

A couple buddies built a nice RV7. It has a generously sized oil fill door. They open it after shutdown to let more hot air out. This is a good and simple idea.

[marsolgp]

Ryan,

I read through this thread again and it looked as if you were directing a question to me about any effects the louvers/grates have on the low pressure area behind the engine..... I have not seen any negative effects, CHT's and oil temps are the same, other temps that I monitor back there are identical to the temps before the louvers, only difference is that temperature inside cowling drops quicker once engine is shutdown. And like I've said before, that's got to be good for the electrics that hang out behind the engine.....