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Old 12-02-2006, 09:15 AM   #1
tex
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Default fuel consumption 'perspective'

I thought I few of you may be interested in the consumption you (I) get from a really UNECONOMICAL engine.

Ive had a few, but nothing can consume fuel like big V6 outboard engines.

I have a 225 HP EFI 2 stroke Yamaha on my 6m plate alloy fishing boat and yesturday returned the following figures.

Total engine hours for day 8.25

Total distance travelled (per track on GPS) 84 miles. - 134 km approx

Total fuel consumed (per fuel management computer) 164 lt, plus a couple of lts of outboard oil.

Most of the time was at idle or slow speed, 50 or so of the miles were at travel speed of 34 mph - 55 kmh approx, or about as economical as it can be !

So lt per 100 km ? TRY 122 lt / 100. averaged for the day.

Oh, and water sports..... WOT = 52 mph = 84 kmh approx with a fuel burn of 94 lt / hr. Over a 100 lt / 100 km travelled. Tow more than one skier, and Ive seen it as high as 120 lt / hr.

Think of it another way, at WOT my 3.2lt V6 ouboard drinks bloody near a 2 lt milk carton per minute. (5400 rpm)

Still reckon your Boss or turbo uses too much fuel ??

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Old 12-02-2006, 10:45 AM   #2
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When I used to ski race, we got around 1 mile per gallon, or 236 litres/100km.
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Old 12-02-2006, 10:48 AM   #3
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man its been too long since i got the boat out... probably cant even afford to run it now.
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Old 12-02-2006, 11:06 AM   #4
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Quote:
Originally Posted by xbgs351
When I used to ski race, we got around 1 mile per gallon, or 236 litres/100km.

Holly crap !!!!

I guess that would be with a V8 inboard. details...........

How fast, and how many rpm @ WOT.

Jesus thats some heavy drinking. How many milk cartons a minute is that ?
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Old 12-02-2006, 11:34 AM   #5
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Quote:
Originally Posted by xbgs351
When I used to ski race, we got around 1 mile per gallon, or 236 litres/100km.
That is pritty bad economy, I think I will stop complaining about my utes fuel useage now.
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Old 12-02-2006, 11:43 AM   #6
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502 CI, supercharged and intercooled. Revved to about 8000 rpm. Around 1100 hp.

Over 100mph, pushing a heavy 21 ft boat.
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Old 13-02-2006, 06:55 PM   #7
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lucky you dont have to drive the boat to work and around town every day!
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Old 13-02-2006, 09:54 PM   #8
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How about this one then? A B-52 bomber taking off and climbing to cruising altitude uses 80,000 litres of fuel.
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