Engine change, increase cruising range?

[videofxr]

Recently bought a very nice used 16' Wahoo center console that came with a 1990 Evinrude V-4<br />90 HP engine. Wasn't really fond of the engine,looks like overkill,<br />but it runs well and the boat is in very good<br />condition. Would it be worth the time and<br />effort to downsize my engine to say a 70 Merc or<br />Yam triple for the fuel savings. Or maybe not<br />the savings as much as the crusing range that my<br />15gal tank supports. Just don't know if my engine is a gas hog compared to the triples. Don't have the funds for newer 4 strokes, so I would have to replace with an older used 1990's 2 stroke engine.

 

[steelespike]

Re: Engine change, increase cruising range?

Nash, You could downsize and you would probably get improved cruise range if you did your homework you could end up with a signifigantly lighter motor. Temporarily you could try a whale tail or similar fin.Your boat would plane much easier and stay on plane at a lower throttle setting.Also would make the boat handle better. You may lose a little top speed but that doesnt sound like it is that important to you. Good luck.

 

[Terry H]

Re: Engine change, increase cruising range?

Nash...if the motor is in good condition it's a good one and I wouldn't change unless that's what you want. I would just add another fuel tank...if there's room and you put the tank towards the bow it'll help hold it down. You could pick up a little fuel savings there...even with the extra weight...just a Thought

 

[Bob_VT]

Re: Engine change, increase cruising range?

You "recently" got this boat/motor. You will have to experiment with the throttle and trim to find that "sweet spot" for cruising. Your range will go up accordingly depending on the rpms. There is an old saying among (dating myself) hot rodders "there is no substitute for cubic inches" and it applies here to. A smaller motor will work harder and reduce your speed. Save your wallet and find that cruise spot for your motor.<br /><br />Bob