FMICs cannot always be ducted easily, the air can go around them instead of through - which it does as it will always take the easiest path.
Grp A integrale, this has a small compact intercooler so they had to make the best of it with an excellent duct, see how it is smaller at the entrance than where it meets the 'cooler face, the air has no way of whirling round and coming back out, it is forced through the intercooler matrix where it cools it down:
Ducting on a race car:
See how the rad is fitted at an angle? This makes the air struggle to get through the core and gives better cooling, it also allows a bigger core to be fitted in the same height.
And finally here is what happens on the front of an integrale:
The cooling air goes throught the rad and intercooler and is then dragged back out of the engine bay by the air passing over the louvres.
So does the theory work?
Of course it does ;-)
http://www.youtube.com/user/Evoluzione2?feature=mhw4#p/u/4/mYEyAaqBbd4
