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#1
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Engine technology in my lifetime
Compare the fuel usages of any older carb'd 225 to Etec, Opti, Yami F.......amazing.
I also saw video of 150 HP electric prototype motor, pushing an approx 19' boat over 50 mph . That my be part of future outboards...........assuming charging can be achieved. 
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#2
03-04-2014, 08:54 PM
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Well, if your boat is big enough, electric power has been proven to be a good source of propulsion. Just look at WWII submarines, made by the Electric Boat Corporation. And of course in the present day, pod drives on boats (electric motors getting their power from an on-board engine) are becoming almost everyday occurrences. But if you're talking about running a boat like ours, all day, on batteries, I don't think that battery technology is anywhere near being able to accomplish that. You would still need a tremendous amount of space on-board, and all that extra weight will effect the performance significantly. Still, it's a nice dream.
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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#3
03-04-2014, 09:35 PM
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I've got an old marine engineers manual(date 1935) that talks about air assisted, direct injected, 2 stroke marine engines(think optimax) built around 1895-1905. Everything old is new again, but this time they've got a computer on it.
BTWE, that manual has some great drawings of old marine engines, some are really odd designs and configurations(H engines, twin I engines, composed cylinder set ups, Y types, ...)
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#4
03-04-2014, 10:28 PM
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Quote:
Last edited by bigshrimpin; 03-04-2014 at 10:38 PM.
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#5
03-05-2014, 07:18 AM
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The only engine technology I've seen that has any hope to significantly impact outboard design is the scuderi engine but I won't hold my breath for its introduction anytime soon. Seems like they've been relegated to power generation vice propulsion as I image adoption into the automotive world is not a easy feat.
http://www.scuderigroup.com/engine-development/
__________________
 74 V20 CC with a 150 Johnson (Gone but not forgotten) 89 V20 Cutty with a Tower (Build in process)
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#6
03-05-2014, 10:05 AM
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It's funny you mention direct injection from yesteryear. I used to have a SANDOW marine engine which was a direct injected 2 stroke marine engine that ran in both directions. The one I had was converted over to a carb, but it origanally used a low pressure direct injection system that used crankcase pressure to inject the fuel directly into the cylinder. The injector assembly was rather complex for it's time, and failure prone(hence why mine had been converted). I believe they were made in the early teens, and made by the detroit motor company(pretty sure they later became known as briggs and stratton). So much of what we have today isn't really new technology, just new ways of utilizing it.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#7
03-05-2014, 07:03 PM
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next time i go to my fathers house in Raleigh, I'm going to pick up his 1904 single cylinder marine engine, I'm going to try and get it back up and running
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