How much horsepower can a turbo add?

When it comes to enhancing automotive performance, many enthusiasts turn to turbocharging as a means to boost horsepower. But just how much horsepower can a turbocharger truly add to a vehicle's engine? This question begs for a detailed explanation, considering the various factors that come into play, such as the size and efficiency of the turbo, the engine's displacement, and the tuning of the vehicle's ECU. With so many variables, it's difficult to give a definitive answer, but we can delve into the general principles and potential gains that turbocharging offers. Let's explore this fascinating topic and delve into the world of horsepower gains through turbocharging.