Quick question
If you under drive the crank and over drive the alternator you get stock speed no? (which you dont want to under drive the alternator anyways)
So the only thing your under driving is the water pump?

Isn't that bad? (and the AC if its turned on)
And if you put the pulley on the water pump the only thing being under driven is the AC
Also does the TSX have Electric Power Steering? If not they there would be the main gain in HP probably on the TSX.