[buzzinhalfdozen]

Ran my t-350 and proflite with no cooler for a few years, never had a temp gauge on it. This past year decided to race local as my grandson was starting in the junior ranks. So I put a cooler on and a temp gauge, after 1 run trans temp 160, after going a few rounds it would quickly run up to 195-200 would turn fan on that is attached to the cooler by the time I got back to the trailer it would be back to 170 or so. Since I never monitored it before I can't say the cooler helped, but I'd say it can't hurt. I called and asked about a cooler on each trans and was told it wasn't needed. My understanding is the smaller, looser convertors produce more heat, I run a 7 inch 8000 stall, your results may vary.