Forced induction is the only way to get something like a 2.0L, four-cylinder engine to puff in enough air to behave more like a V-8 twice its size or to get that V-8 to bang out the sort of horsepower ...
Somewhere between the boosted ZC's that roamed the streets long before mags like this one graced the newsstands and the exponentially more powerful B-series drag mills of today, the lost art of turbo ...
The turbocharger (or turbo) is essentially an air pump that feeds more compressed air to a gasoline or diesel engine, hence the reason why turbo engines are often referred to as "forced-induction" ...