Im gonna touch back on the fan thing, Im not sure how much air a motorcycle fan moves, but a car fan will move somewhere in the range of 500 cfm. here is a link to a 12v computer fan that looks like it might work if used two of them. that would total 444 cfm. That to me seems like sufficient air flow.
http://www.sofasco.c...ial/d12738.html
I would think that two of them would fit behind the rad (side by side, 5"x5"x1.5") providing the needed air movement (444 cfm). or at least one(222 cfm). I mean something has gatta be better then nothing right?
if someone knows how much air our stock fan moves, this would help find some real alternatives to making the COP work
matt