My buddy runs one one a 23' Wellcraft center console. I beleive its the 36 volt model that bolts on to the cavitation plate. As far as performance od the main engine there is no effect as the electric motor is out of the water once you're up on plane. The only thing I know is that in the warmer monthes when you need to pull cranks from 1.5 to 2.0 m.p.h. you will strugle to get the speed in a decent wind. Personally I prefer my Yamaha 4 stroke kicker.