Originally Posted by ALANT
looking at old posts Pete7's Pac 22 with 200hp was running 1 litre per mile
That's because @3/4 of that litre was being left as a slick on the surface behind the boat
Seriously, I don't think its a good comparison as it was an old tech engine that had been tuned from 120hp to 200hp mostly by winding up the pressure on the fuel pump.
I'd want to use something far more efficient and believe that under 1/2 l/mile is achievable at sensible speeds.
As mentioned, it may be a couple of years before I make a decision, might win the lottery in the mean time, or get to the point(again) where the boat goes up for sale to buy food for the kids.