Jason.MZW20,
If you really think you are onto something, with the hot air intake producing better fuel economy, then the engineers who are working on the engine for the Prius, would probably like to hear from you.
They are not just trying to produce more HP, but better fuel management to get more out of a gallon of fuel.
It sure sounds like you've discovered the biggest secret to better fuel economy anyone has ever heard of.
If I were you, I would take your empirical data, and show it to them.
I'm sure they would be interested in learning something they have never seen before, in school, or in real world testing.
Why I'll bet they would say you were some sort of genius, for discovering such a great, and simple way, to get better fuel economy.
Everyone will forever be in your debt for sharing your empirical data with us.
lol