Definitely the deltaP across the alternator increases cooling airflow; and if you exhausted it *above* the cylinders, you'd reduce that flow somewhat.  I have no idea what the cooling margin is on a typical alternator; don't know if it would be a problem or not.


On Jan 23, 2013, at 7:27 AM, Paul Miller wrote:

Second:  Why does the alternator duct exit below the engine?  The exit air may be warm but certainly less than CHT so why not duct the alternator exit back into the upper deck and regain the pressure loss that goes straight through the alternator and bypasses the cylinder fins?

Thoughts?

Paul
Legacy
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