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Old 27 May 2007, 13:56   #11
Country: UK - England
Town: Southampton
Boat name: Searider / War Shot
Make: Avon / Scorpion
Length: 4m +
Engine: 30hp Yam / 150hp opt
Join Date: Sep 2003
Posts: 1,846
My 150hp Opti burns 60l/hr at WOT according to the Smartcraft gauge.

It's reasonably accurate as what we put in after each trip is within a few litres of what the gauge claims has been burnt.

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Old 27 May 2007, 14:22   #12
Country: UK - England
Town: Andover
Boat name: Vampire
Length: 7m +
Engine: Suzuki 300
Join Date: Oct 2006
Posts: 58
Suzuki 300

My Suzuki 300, at 5400rpm (WOT 6300) but on over pitched prop (1.5in) 49knts on a RIBCRAFT 7.8 with 2 crew and full fuel load is burnig 84Lh very slight sea state.
Dissapoiting that the new fly by wire system and all digi readouts dosn't have a facility to display a average burn rate over a specific transit / leg. Or perhaps it does and I just hav't read the instruction booklet properly.

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Old 27 May 2007, 15:58   #13
Country: UK - Scotland
Town: Largs
Boat name: Spitfire
Make: XS850
Length: 8m +
Engine: 2 x 200 Verado
MMSI: 235905304
Join Date: May 2004
Posts: 174
We run twin 200 ETECs on our Humbers. At 4000rpm we are cruising at about 30 knots and burning 43 litres/hour/engine. RPMs and speeds will of course depend on prop size, sea conditions and boat loading, but I reckon that your figures sound reasonably accurate.
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Old 27 May 2007, 17:55   #14
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Country: UK - Wales
Boat name: The Full Morty II
Make: Air Craft/Shakespere
Length: 8m +
Engine: Etec 300hp/Etec150hp
Join Date: Feb 2001
Posts: 603
Originally Posted by neilb View Post
I have an evinrude e-tec 250 connected to a Ballistic 7.8. Whilst out today I noted that at 4000 rpm the fuel flow meter was reading 50 l/h and at 5000 rpm it was reading 72 l/h. These values seem extreemly high. The figures quoted in the Rib Magazine review of the engine attached to the same boat quote 24 l/h and 36 l/h respectivley.

My question is, is my fuel flow meter giving dodgy readings or is the engine burning to much. Can anyone else with a simular setup comment on these figures.


Does seem a little high....just been out this week end running etec 225 ho on 8mt ribs getting 35lts-40lts @4000 rpm, choppy water/24pich prop
Our 6.7mtr rib with a 175 etec done 126lts over 137miles..... have you set your calibration on the guage....
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Old 28 May 2007, 16:53   #15
Country: Ireland
Town: Dublin
Boat name: WIZARD
Make: REDBAY 7.4
Length: 7m +
Engine: OPTI 225
Join Date: Aug 2002
Posts: 417
Engine maxs out at just over 5000rpm [/QUOTE]

Your fuel figures sound a little High , But from the sounds of it your over proped , and this could account for you higher fuel burn

The Rib magazine, are unrealistic...... and you might get 10% better if you have the boat set up and trimmed right.
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Old 29 May 2007, 05:16   #16
Country: UK - England
Town: emsworth
Boat name: the black stuff
Length: 8m +
Engine: 2 x 200hp etec's
Join Date: Dec 2003
Posts: 446
drivers and trim make a diffrance ?

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