Mine gets hot at idle. The temperature just keeps rising. It cools down when moving and stays right at the thermostat temp of 180.
Long story, but when I changed my radiator and went with the cold case, my old shroud did not fit. I made my own shroud out of a Ford Explorer shroud ( two top halves) and it turned out really nice, but the fan was way deep in the shroud and that made it worse at idle.
I mocked up a thin shroud where the fan was about half out and it helped a lot. However it was installed with aluminum furnace tape for the test, not a permanent solution. So now I am trying to come up with a better solution.