[Mike Pearson]

Most in stock and Super stock don't use them is they are not effective. The cooler is used for such a short time during the run. The cooler only works when the engine is running and you have fluid circulating through the cooler and air running over the finned surface. Most run a deep pan with larger volume of oil. I have a powerglide and have never used a cooler. Never an issue with the trans from temp related issues. A few years ago we had a double race at an IHRA open. I won the first race and went to the final in the second race plus a couple of qualifying passes. No issues with the trans that day. The car was dead on consistent all day.