The fan for my system is very small. Like I said before it's a MP 5 blade fan cut down 1" so it would clear the inlet tube and be lower than the top of the radiator (don't cut my fingers off).

The 1" cut really takes a lot of meat off the fan. Five 1" cuts stacked on the right next to the C-clamp pictured below. I'm really shocked it cooled so well without the fan shroud. I guess I could say it's low drag for increased horsepower.





Here's the anorexic looking fan mocked up with freshly painted shroud.