Hemmings Motor News’ Mike McNessor does a deep dive on SUPERCHARGING BOOSTS FREE HORSEPOWER, starting in 1906! When you discuss maximizing an engine’s volumetric efficiency, you are: –Boring everybody else at the party (as usual); –Explaining to your spouse why it’s crucial that you drop a couple of grand on a supercharger for your sports car; –Engaging in a 100-plus-year-old quest to get the most out of an internal combustion engine. If you said all of the above, you’d be correct. ...