Two or Three Engines for you?

Caution, if you pick the three engines choice for your boat, watch your propeller selection, lower unit life, and fuel mileage. Both choices are good choices for a $350,000 new Center Console boat. Say, one in the mid-30s in length.

Prop selection. In a three engine power set-up, the center engine uses a different spec prop than the two outside ones to properly match the engines to the boat. With two engines, the two propellers are the same spec and mount on the transom at a uniform height. This mounting height may, or not, be true for a triple engine boat.

With the different prop spec and other correcting mounting adjustments necessary for a three engine boat, the life of trouble-free use of the center engine seems to be in question. Often, the lower unit below the cavitation plate has a shorter life within the center engine, compared to the two outside engines. Make sure that the warranty of all your engine parts are covered by a factory guarantee plan with your three engine boat and that it clearly states that all three engines on your one boat are equally covered and any warrantee plan extension is also available with the same equal engine coverage -FOR ALL THREE ENGINES.

Seabuddy took two center consoles listed below, one with two engines, one with three. In all of these sets of rounded numbers the three engine boat is listed first. Length 35’ 6”, 33’ 6”; Beam 10’ 10”, 11’ 7”; 90 GPH fuel burn at 54 MPH, 68 GPH at 51 MPH; 33 MPH with 33GPH fuel burn, 31 MPH with a 25 GPH fuel burn.

 

One Response to “Two or Three Engines for you?”

  • Paul:

    Interesting article, however at a guess the three engine set up would would be a wise choice, if the boat was to be run in a fully loaded state the majority of the time, in which case I think the twin engines would give up the ghost sooner.

    Great website, really enjoyed it.

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