Posted by T in NE on January 06, 2014 at 21:28:50 from (75.234.77.175):
In Reply to: HP vs Cu. In. posted by Texasmark1 on January 06, 2014 at 14:04:46:
Any engine, in theory, is capable of producing 1 hp/ci. Whether it lasts at the output is questionable. An engine is technically a large air pump that has explosions go off in it, the more air you can move, the more power you make. Max RPM, cylinder head flow, port shape, manifold configuration (intake and exhaust), valve size, cam timing and duration, valve overlap, ignition timing, carb/injector size, piston weight, valve spring pressure, balancing of the rotating assembly, even lifter diameter, can all affect how much power an engine can make -and survive- at.
The reason those old ones didn't do it is that the engineers didn't have the knowledge/experience, materials, and tolerances that they have today, that allow them to make an engine that can do it.
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