29 fountain fuel consumption
#1
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29 fountain fuel consumption
just bought a 97 fountain fever 29 with twin 468 big blocks, my last boat was a scarab 22 with a 454 mag. i figured my fuel consumption would double because of having two motors. i had the boat out last weekend i ran it three days and i cost me $350 in fuel my scarab would of did the same on $100 or less. i love the fountain but i am wondering about fuel consumption and am considering selling the boat do to high operating cost. is it normal to use that much fuel, i run both boats hard.
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Gallons...we need gallons. $350 doesn't mean anything, depending where you are and how much fuel costs there....
FWIW, I burned about 75 gallons in 2 days of running around in my 28 Sunsation with 496 HO.
FWIW, I burned about 75 gallons in 2 days of running around in my 28 Sunsation with 496 HO.
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3 days... not very useful to calculate... If you run hard, I'd say 25 to 30 gal / hour each engine. WOT around 35 gal / hour per engine. so, 50 to 70 gal/hour, or... at 3.50$ per gal, that's 175$ /hour to 245$ / hour...
don't know what to say, but 350$ for 3 days... = 115$ per day.
That's cheap!!!
My formula 35-7 ran on average 20 gal/hour on a yearly basis, mostly at 3500 rpm... so...
hope it helps anyways...
don't know what to say, but 350$ for 3 days... = 115$ per day.
That's cheap!!!
My formula 35-7 ran on average 20 gal/hour on a yearly basis, mostly at 3500 rpm... so...
hope it helps anyways...
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im concidering selling the boat and going back to one motor. i was thinking about buying a cat with a single that way i can still do 80 with one motor. im the type of person if the boat is on its wide open
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I go thru 200 gallons on a poker run weekend and 100+ on a normal summer weekend with a single engine 27 footer.
Its not the engine its the size and weight AND the engines, you went from a 22deg V light sportboat to a 24deg v offshore boat that weighs twice as much, no way is the fuel economy gonna be remotely close
Its not the engine its the size and weight AND the engines, you went from a 22deg V light sportboat to a 24deg v offshore boat that weighs twice as much, no way is the fuel economy gonna be remotely close
Last edited by HTRDLNCN; 10-10-2011 at 08:22 PM.
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Mine does ok as long as I stay off the boost. At WOT I can use that 155 gallons up in about 2 hours or less. If I run it at around 3500 rpm = 65 mph I can go for quite a while, I would say 8 hours or more of run time. I never really did the math or paid to much attention to it though. I do budget for a tank of fuel every other weekend in the the summer though (about $600 to fill the tank). I would think that the majority of the money I spend on the boat is gas but I expect that.
What kind of speeds are you running at WOT and have you thought about maybe getting a 5 blade to get some better speed at cruising rpms vs top speed?
What kind of speeds are you running at WOT and have you thought about maybe getting a 5 blade to get some better speed at cruising rpms vs top speed?
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On a run we do every year down on Lake Cumberland, approximately 92 miles round trip; our old single 454+.030 (carb) 24' Donzi burned 42 gallons. Our '02 28ZX with twin 350 mags on that same run burned 33 gallons and ran 12 mph faster (average). Just an example. I like playin with twins. good luck with whatever you do,
tom
tom