Originally Posted by Duceanahalf

im sure this has been discussed on CC.com would just need to figure out where to put the exhaust portion of the ducting so that it would suck air through the radiator.

One thing you would have to be careful of is making an inadvertant "sucker car", where your fans provide a slight amount of downforce. this could be viewed as "creative rule interpation a.k.a. cheating" by a sanctioning body.