I run a B&M stacked plate cooler, 8" 4500 converter, no fan, and nothing through the radiator. I have done 5 drag weeks with my road weight at about 4200lbs with passenger and gear. Now I do not have a temp gauge but I have run the same fluid for at least 8 years and it still looks good. The few times I have hit the trans cooler with a temp gun it has been 150-180* not that its much of an indication of fluid temp but I didn't think that was bad.