Quote:
Originally Posted by Mike Caldwell
So the "Net" numbers are more comparable to current type of results we could expect from a dyno run now?
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No. The readings from a dyno shop would more resemble the old "gross" ratings. The gross ratings are an unencumbered engine free of all accesories (except the waterpump and unloaded alternator), no air cleaner and free flowing exhaust.
The "net" ratings are more typical of the torque/HP delivered at the crankshaft in an "as installed" condition. ie: all accesories installed and operating, air cleaner and any silencers, and full factory exhaust with muffler(s). This is basically what the car manufacturers have used since the '72 model year.