an unconventional approach.
Have you ever seen a Vortex tube ?
http://www.exair.com/vortextube/vt_page.htm
I am trying to find out how much air they need (rate per minute) to see if one can be used on a car somehow. It's a cool idea if the proper amount of air could be produced on the car somehow. And talk about cold air -50f. May work on non turbos also.
Just wanted to throw this out and see if anyone can help figure out how to make this idea take shape.