Hi Stu. For the idling in traffic problem.. I installed 2 small Spal pusher fans. 8 or 9 inches..for ATVs. They sit at the bottom of the radiator opening basically behind the bumper. So they do not restrict airflow through the grill. I rarely need them but when they are on it will start dropping the water temp no problem. I run them with manual switches. At the top they are connected using those plastic screws that have a plastic nut on the other side of the radiator. The bottom are held on with zip ties to small holes I drilled in the body.