Honda EXP-2 The Return of Two Strokes?
While this article is from 2003, it does go to show that the manufacturers can do anything with technology when they put their minds to it. This unlikely advance comes from the company that many say was the leader in pushing for four strokes over the two strokes.
The following article is an amazing story of what is possible when technology is used to solve problems.
Get ready for a serious comeback of two-strokes in the near future with engines that can compete with four-strokes head-to-head in emission cleanliness, fuel economy, and ride-ability, all the while retaining power, size, and weight advantages over four-strokes. Off-road and motocross riders have long enjoyed the benefits of two-strokes, which have evolved into highly reliable motors. For you (American) street riders out there, two-strokes have been a thing of the past, banned in the U.S. for their unclean emissions since 1985 (100cc and over).
Just when two-stroke fans had given up and bought old, clapped-out two-stroke street bikes, Honda is now poised to bring them back.
To read the entire article please click on the link below.
http://www.motorcycle.com/manufacturer/honda/honda-exp2-14293.html
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Comments
By Chris2T on December 25th, 2009 at 1:35 pm
Despite the advances of direct-injection, this appears to have been the design that worked the best with this least amount of technology thrown at it. Simple, clean, powerful, effective. The most telling story was how it compared to Honda’s own 4 stroke Dakar bike – the V-twin NXR780. Though down some on horsepower, it produced identical torque and was over 115lbs lighter giving it a better power-to-weight ratio and making it easier to ride. And it got better gas mileage!!
Sadly though it seems that Honda owns the patent for this technology and has buried it.