Evinrude etec fuel figures

[robin]

I have used this engine now for about 15 hours.
Someone asked a while back if I would keep them posted re fuel economy etc.

Top speed so far (GPS) 29.7 knots WOT at 5800 rpm (not for long though!) on flat water one up, 40 litres fuel

Averaging 1.83 nm per litre fuel

ave speed 10 knots

have used about 82 litres fuel and 1.5 litres oil (50:1 ish a bit rich mebbe but the oil figure is more approximate than the other approximations)

So far so good.

I will stop counting beans now and concentrate on more hooning and trying to pull some toys!

[DJL]

Hi Robin,

Very interesting/impressive figures. I would guess that makes the ETECs in the ~50HP range more economical than any other similar sized 2 strokes at the moment.

Still not quite as good as my 60HP four stroke, which over the last 1700nm has averaged 1.85nm per litre. It’s also been pushing considerably more weight through a huge variety of weather conditions.

It will be interesting to see if the figures improve after the engine has been run-in some more.

[robin]

Figures may improve although I can't complain at that for a 2 stroke.
May try a bigger prop pitch, will need a spare anyway.
Cheers
Robin

[gavin]

Excellent figures, we run a pair of Fichts 75hp, both of them together produce 1.25nm for a litre at wot and the oil is about 70/1 do you use ficht oil or the new etec branded stuff, or the US biodegtadable bio d

[robin]

Hi Gavin
I am using the ficht oil at the moment, may cross over to the other stuff when i run out of ficht. I understand the engine uses a lot less etec oil than ficht when set up properly.

DJL....i like your website. nice pics.

[gavin]

http://www.boatsetup.com/PlgIndex.pdf
DO YOU USE CHAMPION XC12PEPB PLUGS. Main Dealer 19.60 euro each, www.sparkplugs.com approx 5 dollars each.Anodes available from www.zincsmart.com at a fraction of the cost from Evinrude also.Its important to run the Ficht oil it contains an additive to keep carbon down, the fichts/ utilize an exhaust pressure sensor, using the Ficht oil and a bit of wot keeps the sensors from blocking up.The engine managment system allows you to blink error codes out from the engine when you get a check engine light, etc water in the fuel filter , low battery etc, quite a good system for keeping you on top of maintaince.We have approx 420 hrs on each 75 now , I have p/n for anodes, plugs paint filters etc that may share similarites with the Etec.

[robin]

Thanks for that Gavin. Still 3 years away (hopefully) before i need any service parts (couldn't find a smiley with crossed fingers).
Have decided to run the ficht oil down to minimum then swap over to the etec stuff, it's 50% more expensive than ficht but allegedly (couldnt find a smiley that looked like angus deayton) uses a lot less than that and is less smokey. Just need to adjust the ems when swapped.
Good figs for your twins though innit

[gavin]

The new Etec oil xp or xt I cant remember 100 and the xp/ xt 50 can be interchanged on the Etec, but you have to program the Etec to run on the 50 as if it uses this oil, it needs to burn more of it.If you use the 100 although it costs more you will use less of the stuff.