I like this thread! I thought of something similar a while back. Here goes: Imagine your front bumper. Now draw a line from the bottom of it down and back to the bottom of your engine. Assuming your rad is gone and there is nothing in the way, you will have a nice downward slope. How about installing a smooth radiator here so it makes that part of the car more pointy and therefore hopefully more aerodynamic. A fan could still be installed on the upper side of the radiator and fins could also be there to aid cooling when the fan is on. Now, if the rad is as wide as possible given the opning size, the cooling ability might be huge. So maybe some experimenting might be needed.
ollie
ps: i'll try upload a pic of what i mean
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