ORIGINAL: RCKen
ORIGINAL: Dr1Driver
How would I have the air flow through the cowl?
Cut an inlet and an exit. Exit needs to be larger than inlet.
Dr.1
Exactly. The air has to have a way to get into AND out of the cowl. You can have the openings in the front of the cowl, but if the air doesn't have a way to exit at the rear/bottom of the cowl then it's not going to a bit of good. The air will be trapped inside of the cowl and form a sort of "bubble" that keeps cool air from flowing over the engine.
Ken
Exposing the cylinder header should do it too, right?