Alright sweet. If the kioritz is a better engine I will definitely use that one. I have 2 or 3 of them that came in that box of engines I bought. Im going to keep the clutch when I first start running the boat just so I can get used to everything and be a little on the safe side. Im pretty much new to rc boats so Im just gonna take things slow to begin with, then take the clutch off as time goes on. Like Nieto said, its not all about hp (well for the time bieing lol) . But Im gonna build the boat then hop it up as time and money comes. I appreciate all the help that I have gotten. IF anyone has any articles how to water cool the engine I would appreciate that too. again thanks for all the help.