Originally Posted by
Fareastdriver
Sorry Shy Torque, both of these are wrong.
...then you have to use an intercooler to keep the turbine in one piece.
Intercooler is to cool charge air before it gets to turbo - engine power is determined by the MASS of fuel/air mixture going to the cylinders, not volume. Since any inlet will choke beyond a certain point, i.e. no matter what you won't get more than a certain volume of air down the intake, you want cooler air going in (cooler air is denser, therefore more mass per unit volume).