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Thread: Kingfisher 2825 GPH?

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    Member Deak's Avatar
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    Default Kingfisher 2825 GPH?

    Trying to compare GPH numbers with other Kingfisher owners. I have a 2825 with twin Etech 200's and just installed the NMEA2000 EMM cable so that I can get the fuel burn numbers directly from the engine. Does anyone else have flowmeter numbers for their 2825 that they could PM or post? I'll have my numbers after the weekend. Very curious to compare with other owners with the same engines and other engines to see what is the best configuration.

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    Member JR2's Avatar
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    Twin 150 Hondas at 4900 RPM burn 12 gal an hour and move me along at 25-29 MPH. At 6000 RPM I burn double that and hit 35 mph.

    Sent from my phone while I should be working.
    2007 Kingfisher 2825 - Stor Fisk

    Civilization ends at the waterline. Beyond that, we all enter the food chain, and not always right at the top. -- Hunter S. Thompson

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    Member DMan's Avatar
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    Quote Originally Posted by JR2 View Post
    Twin 150 Hondas at 4900 RPM burn 12 gal an hour and move me along at 25-29 MPH. At 6000 RPM I burn double that and hit 35 mph.

    Sent from my phone while I should be working.
    12GPH on a 28 foot boat is amazing. My 22 Hewes burned 9-10GPH at 28-30MPH.

    For reference I burn 23GPH at 30MPH... however my MPG doesn't change much to 36MPH so guess what speed I like to run?
    ... aboard the 'Memory Maker' Making Memories one Wave at a Time!

  4. #4

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    2825 short cabin......Twin 130 Hondas.........cruise is 24knts @ 14 gallons per hour.........heavily loaded. Look forward to hearing your Etec numbers.

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    Member JR2's Avatar
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    I have to trim out the boat real good for the mileage I get. Tip the motors way up and just watch the GPH or mpg and find the sweet spot.

    Sent from my phone while I should be working.
    2007 Kingfisher 2825 - Stor Fisk

    Civilization ends at the waterline. Beyond that, we all enter the food chain, and not always right at the top. -- Hunter S. Thompson

  6. #6

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    I have the 30 footer with twin Mercury 200 verados and I am burning 17 an hour at 28 knots.

  7. #7

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    And like JR2 said I trim way up to find the sweet spot. You can feel the boat loosen up out of the water.

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    Moderator bkmail's Avatar
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    27' Wooldridge pilot house cruising at 24 mph @ 3900 RPM burns 8-10 gph with twin Yamaha 115's.
    Also trimmed up to find the sweet spot. Carrying 135 gallons of fuel, family of three with all the stuff for 7 day trips.
    BK

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    I had 2007 2825 Kingfisher for about 3 years and I been averaging 30 to 35 mph burning 2.0 to 2.1 mpg (12 to 13 ghp) which is close to JR2. RPM was around 4700 to 5000. I was using 4 blade 17" pitch props with twin honda 150's. This was with full load with three people with weekend load.

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    Member DMan's Avatar
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    My trim is up to where my economy is the most efficient. Weight is the reason. It's all good though!

    Curious how a Hewes Pacific Explorer would compare to these numbers.
    ... aboard the 'Memory Maker' Making Memories one Wave at a Time!

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    When I had 26' Hewes PC with twin 150 Yamaha's I was only averaging 1.9 mpg running around about 30 mph. But Honda 150's have slightly lower gear ratio.

  12. #12

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    2825 kingfisher. Twin honda 150. My Best mpg is. 27 to 30 mph. Running at about 4300 rpm. 2.1 to 2.2 mpg. This is all based on gallons per hour and GPS speed. This is with a moderate load in good water. Current, wind, load, seas etc. can all have a dramatic affect.

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    Ooops my GPH was about 15 to 18.

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    Member Bullelkklr's Avatar
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    Whew - I put 321 miles on my boat a couple weeks ago in the sound - heavy for the boat size, 4 people, gear, beer, fish. I averaged 3.72mpg through that 321 miles. Running between 48 and 5400 rpm. 90hp yammie on a 18' searunner.

    Boy am I going to miss her when she's gone!

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    My 2825 burns about 14 gph at about 4500 RPM with twin Honda 150's fully loaded with 160 gallons of gas and 60 water and 10 kerosene with a 8' inflatable on the roof. That comes out to about 1.6 to 1.8 knots per gallon. That's real world cruising with 5 shrimp pots on top and 4 big coolers full of ice, fish, shrimp and food for 10 days with a 6 horse out board and 2 group 24 and 2 group 27 batteries. That data is averaged out over about 400 hours of operation. The speed will vary from 21 to 24 knots based on tides wind and current. I can get 5800 RPM at wide open throttle at 31 knots. I changed props to 15.25" X 15, 3 blade Honda Aluminum props to get the W.O.T, RPM up to where it should be. I swear that putting that giant 1000 watt transducer on the back drug the top end speed down a knot or 2. The data is compiled from the Honda fuel management system.

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    Member patrickL's Avatar
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    Quote Originally Posted by Luke View Post
    When I had 26' Hewes PC with twin 150 Yamaha's I was only averaging 1.9 mpg running around about 30 mph. But Honda 150's have slightly lower gear ratio.
    I also have a 26' Hewes Pacific Cruiser and for the last three years I've been at a pretty solid 2mpg. Whether I run 25mph or 30 mph it's still the same. This is based on GPS speed with and against the current and Yamaha fuel management gauge which has been dead balls accurate when I match it to the gas pump. I think I'm just a little under propped but at best I might gain a tenth. Anyway, I'm really curious how you guys with bigger and heavier boats are doing that well or even better. I'm running at 4600rpm at 30mph and I'm burning right at 15gph. Is it the boat, engines, or something else that gets you as good or better mileage then my smaller lighter boat?

  17. #17

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    Heavy I burn 10.5gph at 24-26mph for 2.4-2.5mpg at 2900 rpms with my 27ft GC with its 300hp Volvo Diesel. I can get about the same mpg at 3200 rpms at 30-32mph which is about 10% off WOT. But, I plan on making life easy for my engine.
    What-a-Day
    27' x 9.5' Glacier Craft - Volvo 300hp D4 Diesel
    Remember: Any fool can be uncomfortable.
    Denny

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    Quote Originally Posted by dtol View Post
    Heavy I burn 10.5gph at 24-26mph for 2.4-2.5mpg at 2900 rpms with my 27ft GC with its 300hp Volvo Diesel. I can get about the same mpg at 3200 rpms at 30-32mph which is about 10% off WOT. But, I plan on making life easy for my engine.
    Dtol,
    Are you using G5 and do you carry any spare props?

    Thanks

  19. #19

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    No, I use a G3. You have to be able to reach the recommended WOT with the prop you have installed or you are lugging the engine constantly. No I don't carry a spare prop. A prop strike, like any other mechanical failure will require a tow or I can run l my 25hp kicker at 5.5 mph (hull speed) for 10 hrs with the fuel I have on the boat for it.
    What-a-Day
    27' x 9.5' Glacier Craft - Volvo 300hp D4 Diesel
    Remember: Any fool can be uncomfortable.
    Denny

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