My radiator fans are definately going bad. One spins incredibly slow and the other one spins only slightly faster. It's definately not keeping the engine cool.
I would drive for a couple hours and the engine would stay hot for at least 5 hours afterward. Does anyone have any recommendations for fans besides the stock ones? Or better motors for them? Thanks in advance. This may be the time to replace it with an intercooler LoL

 

An intercooler? Ok......Depends on how the outside temperature is, but mine stays hot for long periods of time as well. The coolant is the main player in the cooling process of your engine, though the fans do help, if you leave your car parked, neither the fans now the coolant will be flowing through the engine to cool it. Check any marts store, the have replacements for fan motors, and nissan has the entire assembly for about 80-130

 

An intercooler would be worthless. You cant put one on a N/A car and expect anything, just a waste of space and weight.