Smaller water pump pulley

Your car immediately cools down when air is being moved through the radiator. Some of the suggestions could also help but I tried all those and nothing worked. I had a dual 1" aluminum radiator that did exactly what you are experiencing. I finally tried a dual 1 1/4" radiator and I can now sit in traffic for as long as I need to on a 100 degree day and stay right at 190. I changed nothing else. The system just wanted more volume of fluid.