Ok, ran the car today in the garage at idle with the larger crank pulley and no stat. Dropped the temps by at least 10 degree's. I can now get the temp to cycle off the fan on/off setting ( between 180 - 190 ). As soon as it warms up outside, I will drive it at speed (65+ ) with the A/C on and check it that way. If it is good with ambient temps in the 90's, I may not have to use a remote trans cooler.
what were your original pulley sizes ? do you know what the factory sizes were for your engine ? as was said, 10 degrees is a sizeable drop.
