Smaller engines with fewer cylinders and less displacement could produce more power and torque by turbocharging. A turbo or turbocharger is a forced-induction device that utilizes exhaust gasses to spin a turbine, which feeds compressed air into the engine. It typically sucks air at ambient temperature, compresses the air to around 30% above atmospheric pressure (about 19 psi), and feeds the pressurized, oxygen-rich air into the intake manifold. You probably heard this too many times, but the adage about
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