the turbo or supercharger compresses the incoming air causing it increase in temperature, or heat up. The intercooler removes some of the heat. The outgoing air to the engine will be reduced in temperature to at least ambient.

Some people add water sprayers in front of the intercooler to cool the air charge even more.

I had a 740 Turbo with an intercooler.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.