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				Originally posted by tw  
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				Originally posted by russotto  
The RX/7 13B twin turbo would probably be the highest performance engine ever sold in America, with an astonishing 194 hp/l (255hp @ 1300cc).  Yet while it is a high perfomance engine, it's not considered astoundingly superior to anything else out there.
			
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   You would compare a rotary engine to a piston engine?   
			
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 Sure, they both run on gasoline, right?  Of course, it is a silly comparison -- but it only underscores the meaninglessness of hp/l as a measure of performance.