rustybarge
Active member
And thats why you probably shouldnt buy an Etec
My first bike was a BSA bantam, say no more.
2str Vs 4str: The Data.....
- Thread starter rustybarge
- Start date
My first bike was a BSA bantam, say no more.
MapisM
Well-known member
Agreed.
The only reason I can think of, and fwiw I wouldn't consider it good enough anyway - is that it makes an emergency/panic reverse more immediate and fool proof.
You know, with cables the results you were more likely to achieve by suddenly shifting from WOT forward to WOT reverse was destroying the gearbox.
With electronic throttles, they might have thought that since this wasn't a problem anymore, they could also get rid of the interlock altogether.
Just a thought, anyway.
MapisM
Well-known member
Yes and no. It very much depends on WHICH 2str O/B.
The Merc Racing 2.5 EFI springs to mind, with its astronomic max RPM, cleaver prop and straight exhaust.
Tried it years ago on a 20' catamaran, worth of 3 digits speed.
By far my most impressive (and pants-shi**ing!) boating experience ever.
rustybarge
Active member
Yes and no. It very much depends on WHICH 2str O/B.
The Merc Racing 2.5 EFI springs to mind, with its astronomic max RPM, cleaver prop and straight exhaust.
Tried it years ago on a 20' catamaran, worth of 3 digits speed.
By far my most impressive (and pants-shi**ing!) boating experience ever.
I daren't ask about MPG....!
The OB is going on my 25' cheetah cat, sea angling not racing.
MapisM
Well-known member
LOL, yeah, pretty sure that has never been a concern for anyone using that monster (or a couple of them) on a race boat.I daren't ask about MPG....!
Though I suspect that, as much as the LPH number is surely VERY high, the MPG might be not too bad.
You know, for any given distance, at 100 kts you can burn 5 times the fuel that you burn at 20 kts, being still on par...!
Canopy Locked
Well-known member
The weight is NOT a typo. I have calculated the weight as I also have the boat on a trailer from time to time. Bare weight of the boat with engine, batteries, electronics, cabling, fenders everything added to the bare hull after its been fitted out is around 2200 kgs The base weight of the hull (no engine or factory options) is 1750kgs. Add on 100 kgs of water, 280kgs of fuel & personal kit (20kgs) and 3 pax @ 80kg each = 2840 kgs
Now the Jeanneau literature showed most examples running with a 150 motor / the dealers were saying 150 was fine.. I think that the fact that the Evinrude can swing a 15" pitch prop and move such a heavy boat at 24 kts @ 4000 rpm is testament to its grunt.
Anyway I like my Evinrude.. I also like Marmite!
landlockedpirate
Active member
My first bike was a BSA bantam, say no more.
Ahh, that explains it, my Dads 1st bike was a Bantam
Nick_H
Active member
Agreed.
The only reason I can think of, and fwiw I wouldn't consider it good enough anyway - is that it makes an emergency/panic reverse more immediate and fool proof.
You know, with cables the results you were more likely to achieve by suddenly shifting from WOT forward to WOT reverse was destroying the gearbox.
With electronic throttles, they might have thought that since this wasn't a problem anymore, they could also get rid of the interlock altogether.
Just a thought, anyway.
Yes, hadn't thought of that, maybe it was more about protecting the gearbox than the occupants! I still like it as a safety feature though when you're swapping drivers, or moving people around, or have kids on board, or mooring up single handed etc.
Nick_H
Active member
Not quite, as the XD100 setting is a dealer set, so you can't just change to 50:1 on the hop, although of course it would be fine to use any other decent oil for a short period, especially if you avoid high RPM.
rustybarge
Active member
Floating Preferably
New member
Hi Guys, re the fuel consumption 2 cyc/4cyc, a while back 100HP would be produced by 5 Galls Diesel per hour, 10galls 2 stroke mix per hour and about 5 galls hour for a 4 stroke inboard. Weight saving was the advantage of the 2 strokes, hence me hanging on to my 2HP Mariner 2 stroke forever. My question is: How does the ETEC stack up weight wise against its 4 stroke equivalent?
MapisM
Well-known member
Yup, all agreed.
As I said, the only somewhat logical reason which popped to my mind is still not good enough, imho.
Spi D
...
Overall E-Tec weigh less than avg. 4 strokes - for same hp
Even less than many classic 2-strokes. Due to less consumption the range has increased. For some users the need to carry two tanks has disappeared, so also one tank+fuel lighter
Even less than many classic 2-strokes. Due to less consumption the range has increased. For some users the need to carry two tanks has disappeared, so also one tank+fuel lighter
ontheplane
Well-known member
And thats why you probably shouldnt buy an Etec
And perhaps the mentality that caused early ones to go "BANG"?
landlockedpirate
Active member
Im sure it contributed to it. I was into jetskis in the 90's. Seadoo's required special oil, yet week after week a newbie would come along to the club and stick any old oil into the engine. These were the same newbies that weeks later would be back at SQM with broken skis.
You can of course subsitute different brands of oil, but they must be exactly the same specification. Outboards (and Jetskis) spend most of their life at either tickover or WOT, good oil is a requirement.