At one point 220 degrees, and I think would slowly continue to climb furthe. Once the car gets under way it corrects back to the perimeters of the thermostat. The fan is inside the shroud with the edge of the fan level with the engine side of the shroud. I am leaning towards air flow as a start and plan to order a shorter fan spacer.. I like your saying. I consider myself an Honest man, not a smart man………. But I will advise people that I am one of the most resourceful people you will find….. I just wanted readers to know that I won’t let my confidence outway my competence.