Turbochargers have transformed everything from diesel trucks and daily drivers to race cars and side-by-sides. Yet despite decades of development, some myths continue circulating through forums, social media, and garage conversations. Unfortunately, believing these misconceptions can lead to poor turbo selection, disappointing performance, and unnecessary expenses.
Let's break down four of the most common turbocharger myths and explain what really affects performance.
Myth #1: More Boost Always Makes More Power
This is perhaps the most common misunderstanding in the performance world.
Many enthusiasts focus solely on boost pressure numbers. If 15 PSI is good, 25 PSI must be better, right?
Not necessarily.
Boost pressure tells you how much manifold pressure the engine is seeing above atmospheric pressure, but it does not tell you by itself how much air mass is entering the engine or how much power the engine will make.
Horsepower is influenced much more directly by the mass of oxygen the