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Author Topic: Consumption of a 90hp?  (Read 3236 times)
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droo88
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« on: April 09, 2013, 19:54:26 CET »

Hi, new here  Smiley

I am interested in buying a boat (had a small 13 foot displacement one last summer but the mooring was cut and the boat was lost Sad )

Now I am looking for a planing hull and have found a couple of 17 footers. My question is what fuel consumption should I expect from a 17 foot planing hull powered by a 90 2stroke mercury? My previous boat had a 35 2 stroke evinrude bolted on and was not so bad regarding fuel consumption at cruising although it was slow (crusing 6-7 mph, max 18-20).

Thanks!

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baghira
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« Reply #1 on: April 09, 2013, 22:06:59 CET »

for fishing?HuhHuhHuh?
Find something else.... you're looking on the wrong side of the moon man.....
Wrong hull, wrong motor..
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benri
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« Reply #2 on: April 10, 2013, 06:29:52 CET »

I had a 16ft planing hull with a 90hp 2 stroke - since 5 years I switched to a 20ft hull with a 140hp 4 stroke and consumption is at least half!! Look away from old 2 strokes! Etecs and the new stuff are a different story.
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I'd rather be fishing.....
skip
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« Reply #3 on: April 10, 2013, 11:33:27 CET »

If it's a straight 2-Stroke Mercury (Like their Saltwater or EFI) then avoid, unless it's an Optimax Direct Injection.

On a fairly heavy 18.5 foot planing hull with a 90hp DI engine at 20 knots I was using around 16.5-17.5 Litres per hour and around 4-6 litres per hour trolling at 6 knots.
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Saver 690 Cabin Sport - Evinrude ETEC 225hp
malvizzu
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« Reply #4 on: April 10, 2013, 16:49:15 CET »

As Skip rightly said, don't go for a staight 2-stroke engine cause it will make a deep hole in your pockets. Go either for a 2-stroke Direct Injection (Evrinrude ETEC, Mercury Optimax or Tohatsu TLDI) or for a 4-stroke engine (Suzuki, Mariner, Honda, Yamaha).
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Fastfisher 14 Open powered by Evinrude E-TEC 50HP & Johnson 8HP
droo88
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« Reply #5 on: April 18, 2013, 14:56:40 CET »

Thanks for your advice. I kept on looking and found a 15 foot boat with a 40hp motor. Should take me to comino and back with some stops for fishing on the way Wink.

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skip
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« Reply #6 on: April 18, 2013, 15:54:34 CET »

Thanks for your advice. I kept on looking and found a 15 foot boat with a 40hp motor. Should take me to comino and back with some stops for fishing on the way Wink.

4 Stroke or DI?
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droo88
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« Reply #7 on: April 18, 2013, 20:38:02 CET »

Its a 2 stroke, but is small displacement (650cc) and should give me about 5-6mpg cruising. Quite comparable to my previous boat.

I had a look at boats with 4 stroke engines but the price was x3-4 as much and didn't seem worth it as I am not going to be using the boat that often.
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DEXTER
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dexter


« Reply #8 on: April 28, 2013, 23:47:50 CET »

How much would i expect to consume by trolling  on a 14 foot fibreglass boar with 30hp 2 stroke evinrude of 1999? With same boat but honda 30hp 4 stroke by trolling i consumed 6 euros in six hours.(1euro hourly).
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baghira
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« Reply #9 on: April 29, 2013, 08:28:29 CET »

what speed?
I am assuming that you would consume x 3 or a bit more...........
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skip
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« Reply #10 on: April 29, 2013, 11:57:18 CET »

That's 0.66L per hour (3.95L total)? Were you just in gear at quasi idle speed?

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DEXTER
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dexter


« Reply #11 on: May 15, 2013, 21:53:25 CET »

yes I was in gear with little speed.approx 2 knots.
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