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Old 22 May 2005, 10:04   #1
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2stroke V 4stroke consumption chart

http://www.suzuki.ca/news/pdf/FuelEf...Comparison.pdf

Makes interesting reading - I know it is specifically on Suzuki but the general rules will apply to all outboards.

It shows that a 4 stroke REALLY scores at idle and lower speeds - as the throttle opens further the advantages start to reduce - flat out the figures get much closer.

Still dreading the figures for my DT225 though!!!
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Old 22 May 2005, 11:03   #2
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Still dreading the figures for my DT225 though!!!
Is that why you keep postponing delivery?
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Old 22 May 2005, 11:44   #3
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Interesting.

Good one. Puts everything in to perspective.

I shall be studying it intently.

Regards Nick R.
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Old 22 May 2005, 16:36   #4
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I think that, the comparision chart is a load of crap ... its comparing 10-20 year old two stroke, designed engines to the very lastest four strokes.... I would love to see the comparrision between the latest HDPI, E-TEC or OPTI , to the new four stroke , it think the difference would be a lot closer, In fact it may sway the other way , in certian instances, if you add in the speed of the Boat too !
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Old 22 May 2005, 16:41   #5
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I think that, the comparision chart is a load of crap
Precisely! It's Suzuki saying, oh bugger we've put all our eggs in one basket with 4-strokes and completely neglected to develop a direct injection 2-stroke like our more forward thinking competitors.
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Old 22 May 2005, 17:03   #6
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theres a comparison between the etec 250 and verado 250 about half way down the page on this site.#
http://www.e-tecinfonet.org/id3.html


verado has slightly better fuel consumption at mid range speed but drinks it alot faster than the etec at higher speeds.

We have also noticed that the etec does drink about the same amont of fuel beween 3500 and 5400 revs and WOT is slightly higher at about 30% increase
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Old 22 May 2005, 18:26   #7
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Quote:
Originally Posted by TIM
I think that, the comparision chart is a load of crap ... its comparing 10-20 year old two stroke, designed engines to the very lastest four strokes.... I would love to see the comparrision between the latest HDPI, E-TEC or OPTI , to the new four stroke , it think the difference would be a lot closer, In fact it may sway the other way , in certian instances, if you add in the speed of the Boat too !

Well I thought it would be usefull - obviously an etec would be even better but I couldn't find a chart comparing an etec to a modern 4 stroke!!!
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Old 23 May 2005, 16:52   #8
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The whole debate is a load of crap, if you can afford a 225hp you can afford the petrol to run it,wether its a 2 or 4 stroke - end of story
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Old 23 May 2005, 18:43   #9
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consumption figures

Well said ratty!

As my mate says" Do your bit for the environment....burn all the petrol now."
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Old 23 May 2005, 19:33   #10
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The whole debate is a load of crap, if you can afford a 225hp you can afford the petrol to run it,wether its a 2 or 4 stroke - end of story
Bollocks!!! 30gph flat out = £120 per hour = £234,000 a year - wish I earned that!!!
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