[ischmitz]

Pressure and flow is like voltage and ampere:

The higher the pressure (voltage) the higher the flow (ampere). The same pressure should by all means result in the same flow (at a given intake backpressure)

Efficienty is the key. The exhaust stream that is released unused into the atmosphere contains a lot of 'usable' power. The turbocharger makes use of that, but creates backpressure in the process and hence chockes the engine a little bit. Bigger turbo = more efficient thats the key.

is