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IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

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Old Aug 22, 2006 | 12:17 PM
  #31  
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Gernby
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Originally Posted by lobuxracer
If you want a really interesting study in torque, look at generator sets. Those engines operate in an extremely narrow rpm range, and everything is optimised to make lots of torque in a range of about 10 rpm. The Miller cycle was originally developed for just this purpose. Ship engines are very similar because they trim for best speed/unit of fuel used. Outside that range, they're worthless.
I don't know much about hybrids, but aren't their engines designed similarly?
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Old Aug 22, 2006 | 12:21 PM
  #32  
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lobuxracer
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They should be. They're not. If they were diesels with about 50% thermal efficiency, then they'd really get my vote for doing it right, but they chose something else. They only build what they think the public will buy. Americans just don't buy diesels except in trucks.
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