As some of you may knowI own a 1988 19' Laser 3880 bass boat. It now has a Johnson GT 150 on it. The boat will flat out fly. Not sure of how fast that it will go (no gps as of now). On the lowrance x85 that I currently have on the boat it reads in the 90's. I know that the speed wheel type speedo's on this unit isn't accurate and not claiming that to be the true speed of the boat but the dash mounted speedo (also not at all accurate) quits at 65.

Anyway speed isn't the issue. Fuel consumption is. I'm wongering how small of a motor I could put on this boat and still get on plane easily and have a respectable topend speed alone with better fuel economy. Or would I be better off going with a newer motor of the same HP?

DJ
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