Not much boost from a little fan. Need BIG ASS fan to make as much air flow as a Turbo or Supercharger.
I say just wait for the Raby kit or copy some of the stuff already been done.
I got a friend who just hired on to BORG as a Co-op student Making turbo designs for all kinds of stuff. He will be finishing his ME degree in the spring. Dude is a genious and one hell of a driver behind the wheel of his EVO.
Sorry just rambling I need more