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Direct injected two stroke with traction control will be the ultimate dirt sickle. The only problem will be in getting the tc to work properly because sometimes you want rear wheel spin.
The Shop
Where does it say traction control is forbidden? Better remove clutch levers and rekluse clutches then.
Pit Row
-Using the engine as a stressed member of the frame?
he might be right
cow bell
Nothing way out there on the horizon but a DI 2 stroke w/ a very basic form of TC using wheel speed calculations and an on/ off switch is undoubtedly coming down the pipeline from KTM most likely. Of course DI will also nececitate (sp?) auto-lube injection systems that run as oil lean as 200:1 at idle. It'll be cool because the oil will simply last much longer.
The death of the 4 stroke is inevitable imo and not just in the dirt bike world.
I also envision heavy duty truck engines (18 wheelers which is what I sell) w/ DI large displacement 2 stroke engines in the future. The hp/ weight, cost to manufacture, and required emissions equipment would all far favor the 2 stroke.
Anyways, consider that the engine manufacturers are selling their engines minus $20K of after treatment to the truck chassis manufacturers for $40K plus and I think you can see where there is room for some thinking outside of the box.
Then when you consider that DI 2 strokes are quiet, get great mpg, are cheap to manufacturer, and pack a hell of a wallop of power, and already can pass on road emissions standards I think you can see where there might be a home for them. The exhaust system has always been a major factor in 2 stroke desing but we have the real estate under the hood of a big truck.
Are you familiar w/ the Lotus' 2 stroke, diret injection, variable compression engine?
http://www.autoblog.com/2008/08/12/lotus-developing-efficient-two-strok…
The other problem they are going to face is getting the truck buying companies to embrace a technology that burned them in the past. Most of the fleet people are old enough to remember the bad old days if you know what I mean. As much as the new emissions standards have irritated them I still don't think they are going to be embracing two stroke diesels anytime soon.
FYI: I am currently a fleet supervisor for a beer distributor and came from a Freightliner dealer. I was an engine mechanic and then moved into management there before I came to where I work now. I love all things two stroke but I wouldn't buy them for my fleet now. At least not right away.
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