Sorry Rizzo, we'll have to agree to disagree. My comment was toward getting 3 mpg at 60 mph on a Ranger 620 with a 250 hp motor, not a 300hp since they aren't rated for that, you might as well quit bringing that one up. It was never part of my comment.
An Optimax Pro XS is 275hp just like the G2 250HO. I've seen it on on a 209tfx more than once (a 20ft boat as you imply not being apples to apples) and have witnessed it on both of my big block Optimax's. A 250 will run at around 21-22.5 gph at WOT on the smartcraft gauges and will push that boat into the the low to mid 60s confirmed by GPS. Sorry, that's not a guess, that's live data from the ecu and the gps. On my own rigs, I run between 19-20 GPH at WOT with live info on the smart-craft gauges. The smartcraft speedo on my current rig is also tied to my GPS so I actually get live mpg readings. Both my old 1895 Storm and my new rig will run between 58-60 mph by GPS. To be perfectly honest, my current 200 and my old 225 run identical for fuel usage throughout the rpm range and both boats ran almost the identical speed per rpms. Per the fuel usage of my smartcraft gauges, it's normally within a gallon of total fuel usage when I fill up. Sorry, but 3mpg at WOT just isn't an impressive number. It's been done in this relm for almost 15 years.
An Optimax Pro XS is 275hp just like the G2 250HO. I've seen it on on a 209tfx more than once (a 20ft boat as you imply not being apples to apples) and have witnessed it on both of my big block Optimax's. A 250 will run at around 21-22.5 gph at WOT on the smartcraft gauges and will push that boat into the the low to mid 60s confirmed by GPS. Sorry, that's not a guess, that's live data from the ecu and the gps. On my own rigs, I run between 19-20 GPH at WOT with live info on the smart-craft gauges. The smartcraft speedo on my current rig is also tied to my GPS so I actually get live mpg readings. Both my old 1895 Storm and my new rig will run between 58-60 mph by GPS. To be perfectly honest, my current 200 and my old 225 run identical for fuel usage throughout the rpm range and both boats ran almost the identical speed per rpms. Per the fuel usage of my smartcraft gauges, it's normally within a gallon of total fuel usage when I fill up. Sorry, but 3mpg at WOT just isn't an impressive number. It's been done in this relm for almost 15 years.