Order of events?

[VisChaos]

I just need to know if I understand how this works.
Exhaust runs the turbo?
Turbo forces air into the intercooler then to the intake?
Does this eliminate the need for an air filter, or is there a spot on the turbo for fresh air?
Is the intercooler just a modified radiator without the water? I understand it's for a specific purpose, but just as an "intercooler for dummies" question.

More "for dummies" questions to come.
Thank you

 

[RustBucket]

You've got the basic jist of it. Think of a turbo as a fan-driven fan. The exhaust blows across the blades of one fan which in turn spins a separate fan. The air flow paths are separate. You'll still need an air filter and associated plumbing.

You've got the intercooler concept right. It's just a radiator for air.

 

[Stinger]

www.howstuffworks.com then search for turbo