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Old 01-26-2010, 10:50 AM   #26 (permalink)
Christ
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I've never seen one their engines in action, but their own specs show that an 855CI NG engine is only making between 174 and 280ish HP on diff grades of natural gas. I tend to wonder if their engine design actually allows flow-through into the cylinder, or if the rotary valve traps a volume of air that is then "delivered" to the combustion chamber as the valve flips over.

It appears to be the latter.
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