what are the pros and cons of triples versus double engines
12-09-2013, 03:08 PM
#21
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Location: Central Square & Fishers Landing, 1000 Islands NY
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I agree on just the wow factor at the dock. People just look at you like you must own your own refinery. The other thing I like is that my 42 Fountain gets on plane with barely any throttle and zero tabs. It also stays up on plane at a lot less rpm than if it had twins. I didn't see a huge increase, if any, in the amount of fuel mine burns with triple 575 horse HP 500's vs. my old Formula with twin 502's.
12-09-2013, 04:06 PM
#22
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I've got a picture somewhere of my smartcraft showing 200 gallons per hour while running wide open, I'll have to find it. And yes, boat can stay on plane at much slower speeds
12-09-2013, 05:00 PM
#24
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The difference in maintenance costs are somewhat dependent on the boat and the different power options you would need in twins versus triples. For instance, in a 47 Fountain, you can go trip 525's but putting twins in that boat you would need big power and #6 drives which I would argue the maintenance on those would be more costly than the basic maintenance on 525's with bravos which are for the most part bulletproof (header issue notwithstanding). In fact, I'm really hoping I'm right on this theory because I just bought a trip 525 boat.... 
12-09-2013, 05:53 PM
#26
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Just a quick caluclation based off your avatar... .6 MPG?? Not really that far out of line.
12-09-2013, 07:08 PM
#28
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I can get my Fountain on plane with a dead prop. It was a life saver this year at the shootout when I lost a sea pump belt at MM28 and needed to get to MM19. On the other hand, burning $1,100.00 in fuel with minimal running around is not cool.
One thing I do like is I can keep the boat on plane at 21 MPH by using the tabs and trimming the drives all the way in.
One thing I do like is I can keep the boat on plane at 21 MPH by using the tabs and trimming the drives all the way in.
Last edited by Precision; 12-09-2013 at 07:54 PM.
12-09-2013, 07:31 PM
#29
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12-09-2013, 08:16 PM
#30
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We have a Donzi 43 ZR with triple 700's and love it but one major draw back is when the center drive is trimmed even slightly higher than the outer two, the tie bars pull the outer drives in and the props can literally hit each other. A smaller diameter prop on the center will help as well as more accurate drive trim indicators to be sure that all 3 drives are even at all times. This shouldn't be an issue on triple bravo configurations as the Maximus props are smaller diameter than cleaver props.
Obviously fuel burn is another drawback, the 700's burn 67 gallons per hour at wide open but acceleration and top end are improved so it's a trade off. Triple NXT & #6 drives looks pretty badass on the trailer and the rooster tail in the water.
[ATTACH=CONFIG]513893[/ATTACH]
[ATTACH=CONFIG]513894[/ATTACH]
Obviously fuel burn is another drawback, the 700's burn 67 gallons per hour at wide open but acceleration and top end are improved so it's a trade off. Triple NXT & #6 drives looks pretty badass on the trailer and the rooster tail in the water.
[ATTACH=CONFIG]513893[/ATTACH]
[ATTACH=CONFIG]513894[/ATTACH]
