Woah - removing the clutch fan to free-up HP? You DEFINATELY have to install another fan to pull cold air through the radiator...I can't even imagine the kind of overheating you would get without any fan at all...
To remove, all you need is a 10mm open wrench. And, umm. maybe a screwdriver or two in order to remove the fan shroud and various other plastic pieces. Nothing mysterious, just look, and you'll see what has to be removed. There are 4 10mm bolts securing the fan clutch (the center of the fan). Remove all 4, and sometimes, you need to jiggle the fan a bit to get it to come off. Pull it up and you're done. Once your engine starts to overheat, reverse the procedure to install.