Before you do anything, you need to find out why the fan hits the radiator!
Even with a supercharger and a 1.6, I can't think of why there would be a change of clearance between the fan and the radiator unless the radiator has been pushed back by damage, is incorrectly mounted, is not an OEM radiator or has damaged mounting arms..
Also, I would post this question on the Tech forum at the iZook forum. Good 'ol Larry there has a supercharged 1.6 in his Samurai and might be able to offer you some advice about this.
Oh, and pics would be GREAT both here AND there!