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Oh, when I was talking about modern 2-strokes and emissions, I should have mentioned Ossa, an old name in (mostly) dirtbikes, who stunned the motocross and trials worlds by coming up with a new-tech fuel-injected two-stroke that wins races and meets current European emissions standards, this after 2-strokes had long been written off. And even cleaner and more efficient 2-stroke technology is on the way.
Again, Hal, I agree that such developments barely make a dent in the awful environmental mess we humans have got ourselves into; for that matter, none of the admirable do-it-yourself eco-modder project car ideas on this site make more than a slight dent in the overall problem. But at least they are better than not doing anything. Incremental improvement is what the Hundred Pound Rule of Motor Racing is about. It states: "There is no one place you can take a hundred pounds out of the car; but there might be a hundred places you can take out one pound." We desperately need some breakthroughs, as Bill Gates has been saying recently. But meanwhile we need to be "kaizen-ing" (Jap. term for continually refining existing products and technologies) what we already have.
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