Carb VS hpdi fuel use!

[Danishboater]

Do anybody know how much fuel % to save by having a hpdi VS carb model 250 hp??

[rodbolt17]

depends on engine speed/load.
both ,pushing a similar hull at or near WOT, will burn about 25 gallons per hour.

[TownsendsFJR1300]

Outboard Performance, Performance Bulletins | Yamaha Outboards

Plug in your info and you can get an idea...

It won't give you difference between carbed and FI'ed but a general gallons per hour vs speed, etc...

For my boat its pretty accurate....