| With the koyo radiator this time of year the car takes a long time to warm up and seldom reaches 170 degrees. On a hot hot day with the AC on it hovered around 200. The flexalite fan controller is variable so the temps are very stable. I mostly see it bounce off the thermostat at the 170 area. Once the t-stat open the temp in the radiator rises and plunges in less than 15 seconds. You have no idea how much air the 21" fan moves. It's not a thin blade design. Even at 1/2 speed it move plenty of air. I bench tested it with a battery at it was like a wind tunnel and I said to my self, I got make this work. You're clearly sceptical but my setup works the best.
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