Once the limits of a naturally aspirated engine are achieved in terms of horsepower and reliability, there's only one more way to maximize horsepower potential: forced induction. There are two options for realistic forced induction, a turbocharger or a supercharger. While there is considerable debate over which is better, both offer exponential gains over any standard modification on a normally aspirated engine.

Street Supercharging, from industry veteran Pat Ganahl, has been the guidebook for supercharging fans for years. As time...