I figure two of these and maybe 200 mph. http://www.youtube.com/watch?v=WA9V0roB82I

Pretty cool set up!! On the dyno they were 813 hp and 516 of torque.. Not sure if there is enough torque there to be worth while in a boat!!! Maybe a single engine go fast!!

Who would have thought a 6 cylinder could sound that good.

My neighbor runs an old dirt track car with a straight 6 in it and is able to out run small block cars with ease. That thing sounds wicked. Randy

Yea we have a inline 6 in our bmw .. its a pretty quick car with plenty of power for sure..

Funny I would have thought the tq would be more than hp,.....so please escplain

no cylinders, its a rotary motor (think mazda RX7/RX8), 6 rotors attached together

I looked again, now I see it. Rotary engines were not known for torque but will rev to the sky. That according to a Mazda master tech I used to work with. Randy