Yup, it takes not only high pressure, but a high volume of air. Add to that the need to squeeze more air through existing small ducting, and you need quite a bi

Yup, it takes not only high pressure, but a high volume of air. Add to that the need to squeeze more air through existing small ducting, and you need quite a bit to make a difference. Turbos work by their intake being powered in close relation to their exhaust volume. The rest is just effeciency curves and fueling issues.