Suzuki DF350 #'s
 

So I'm almost finished with the first 10 hrs on the engine and figured i'd post up some performance numbers on the Boat/Engine. I'm very happy with the performance of this engine and the 23 seacraft. I hadn't ever ran one before i pushed mine off the trailer and fired up the engine. I think it may benefit from raising the engine up to the last hole on the bracket and may need to go up a prop size after the rings fully seat but I really dont think it's worth the expense of 2 new props for a small gain.

1979 23' SF - Suzuki DF350A

Prop: 15.5 x 24 duoprop

Mount: Hermco Twin engine bracket mounted 1" higher than instructions (top of platform 27" above keel)

Fuel - 90 Gallons (104 gal tank) 90 Octane ethanol free

Weather: Glass calm conditions, 90 degrees

5 adults and minimal gear, T-top installed


3300 RPM - 30 MPH - 7.93 GPH - 3.8 MPG
3900 RPM - 36 MPH - 10.3 GPH - 3.5 MPG
4600 RPM - 43 MPH - 15.0 GPH - 2.9 MPG
6300 RPM - 59 MPH - 29.8 GPH - 2.0 MPG

Whats interesting, is that with 20 gallons of fuel and only me on board i get the same Max speed of 59 which is what leads me to believe it may need more prop.

Sounds like a nice sled. Sounds like there is a little more in it yet maybe. No bad #'s at all.

Let's see here, 30 mph at 3300 rpms at 3.8 mpg....with five aboard??? I would be ecstatic!!! Well done :)

Those are some outstanding #s for sure.

350
 

How is the stability and how does it go in reverse

Sweet! I need one of them 350's

3900 RPM - 36 MPH - 10.3 GPH - 3.5 MPG with that load is amazing!

Great numbers! Where are the pictures? So I guess a spare prop means both?

incredible numbers! bigger is better!

WOW! Same MPG or better than my '79 with a new 300. And you are pushing 60 which is crazy. She's about 6mph faster across the board at the same rpm's.

Tempted!!!!!!!!!!!!