Automotive experts have boiled an engine down to being nothing more than a big air pump, stating simply: the more air that you pump through an engine at one time, the better it performs. That's the reason for installing turbochargers or superchargers (blowers) on an engine, to cram as much air as possible into the engine as quickly as possible. Of course, air "intake" is only half the battle. You must also have proper "exhaust" with the right amount of "back pressure" to realize the maximum benefits of a better breathing engine.