Fuel Economy

LukeB777

Seaman Apprentice
Joined
Mar 16, 2008
Messages
39
Just wondering what peoples "sweet Spot" is for fuel economy. I have a 1989 force 85hp on a 17 foot quantum bass boat. I'm finally over the new boat "I need to go WOT all the time" phase and was curious what would be the average RPM/MPH I should run at to best conserve gas but not go like 2 MPH. :D My trim and tilt is inop at the moment so the motor is pretty much straight up and down. Any ideas what range I should run??

Thanks for the help!
 

john from md

Commander
Joined
Apr 13, 2008
Messages
2,184
Re: Fuel Economy

Best fuel economy on my 1600 Bayliner with 85hp engine and smart tabs is 21 to 23 mph which puts me in the 3500 to 4000 rpm range. With a flat sea state, I can get 4 mph with light wind. If I am fighting 12MPH winds it goes down to 3 mph. At WOT, it drinks gas.

John
 
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