searched. Just got my new radiatior and slimfan. I was wondering should it be pulling or pushing to the radiator.

 

Usually pull is better - w/o going into detail, it basicly pulls air more evenly across the rad (fewer dead spots).

It also depends on the way the fan is set up. Curved-blade fans that can be reversed will move more air depending on which way it bolted onto the motor. In other words, when want to reverse the air flow, you flip the fan blade over as well as flip the wire polarity.

 

thanks mang