Basic turbo question...

[Kurt B]

I know the theory behind them in general, but I don't understand how the compressed/cooled air is delivered into the system. You take the stock intake manifold, and what, stick a pipe where the turbofied air comes in?

does anyone have a picture of where the air coming out of the turbo is actually injected into the intakes?

And lastly, I've never gotten an good anwer to the question, if DME is a reprogrammable system, why did turbos still use CIS? I mean, couldn't they just reprogram some parameters and adjust DME to accept the specifics of a turbo?

[poorb0yw]

The compressor side of the turbo effectively becomes your new intake. Plumbing from this side goes directly into your intake manifold. There isn't a regular intake and an intake for the compressed air, all of it is going through the compressor and comes in above the throttle body.

[doorman930]

To put the turbo question in a simple way, the only major difference is as the air enters through the air filter, it then proceeds through the turbo where it is compressed, and then into the intake manifold. All of the air that goes into the intake manifold comes through the turbo.

As for your CIS question, it is my understanding that the programing required to map a car is big bucks, and Porsche didn't feel the need to spend the money on the small production turbo. Not sure if that is the reason, but this is what I have heard in the past.