fan

Does a fan spacer (moving the stock fan closer to the radiator) with the stock shroud help draw more air through the radiator? Does a 6 blade fan help and is it noisy? Would a smaller pump pully help by spinning the water pump faster? Thanks

Friends, my electric skills are limited, so some help is needed. :-/ As an additional 6 volt 20A electric fan for cooling I bought this one: http://www.limora.com/de/elektroluefter-1-153129.html and it works great when I test it with a simple on/off switch directly connected with a 20A inline...