Ficht question

[bigshrimpin]

Originally Posted by evilgli

well i finally got the boat out today and was able to see how my newly installed fuel flow sensor worked.. had me, wife and the 2 kids on the boat. 50 gallons of fuel in the boat and almost calm flat river conditions

the ol 200 johnson ocean pro was using 2 GPH at idle in neutral

cruising at 4000RPM produced 28.6 MPH using 11.4 GPH

cruising at 4500RPM produced 33.7 MPH using 14.2 GPH

trolling at 1800RPM produced 6.51 MPH using 3.4 GPH

and drumroll....wideopen trimmed up at 5800RPM produced 44.4 MPH using 24.5 GPH (OUCH)

and i also checked the cavitation plate running wideopen and the engine trimmed in the middle and i could see it just below the water line, so i think the engine is mounted properly..

whatca think ferm??

175 2.4L Merc Blackmax will put you right at 9gph @ 4000rpm with the same speed

[macojoe]

That 175 2.4 is my motor, what a great motor on gas, and that was on a 3000 pound dry weight, Sea Ox!

I just moved up to a 225 4 stroke , with weight and HP I am guessing I not going to do any better on gas then the 175?? But it will be nice and quiet and more power when needed.

[bigshrimpin]

Don't think you will save any $$$ that ficht. What you save in fuel . . . will cost you in Special Oil, Plugs, and Repairs. The difference in fuel price for a 80 mile trip with gas at $2.50 2.5mpg = $80 3.5mpg = $57 . . . That's a whopping $25 per trip savings ;)

10 Trips = $250 savings
20 trips = $500 savings

Unless you are commercial . . . it's very very hard to make the new motor fuel cost benefit equation argument (especially when you have a good reliable motor now).

[bigshrimpin]

http://www.wellcraftv20.com/communit...ighlight=mount

[evilgli]

guys i have decided as of now i'm gonna stick with the ol johnson.. might play around with some props, but i don't think the little fuel saving is worth dropping money on a new engine at this time.