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OK, I know, I know, 2 stroke is the modern standard for locomotive power. "Market decision" erc etc My curiousity is, how and why was that ultimate decision come upon? Strictly "hours of operation/cost", or what? Just based upon my experiances with smaller engines,..one produces more power per stroke at the crank shaft, and the other sounds like a chainsaw. The latter tends to out perform the former in "high rev" applications, but I seriously doubt those big dukes in an SD-70 or a Dash-9 are high rev. Thinking back to my childhood, I can remember when you would feel the "ooomph" of a diesels engine as it went by, the ground would shake, and the exhaust seemed to shake the sky with that power,,,I guess those were Alco's,.... though at the time I was too young to give a darn. If the current ambitions are towards ever more horse power, why has no one brought a 4 cycle engine into the foray?
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