I'm a believer in the fans-impede-airflow at track speed theory. I haven't driven a lot of events but have yet to see problems with my IAT's. While not an intercooler issue, at Thunderhill with 104° ambient, eng temp was a problem & I threw a P1299 code (cyl. head overtemp). Last September I added better hood vents and E85 to hopefully alleviate this a bit but haven't got a track day since. Still trying to find an effective fit for an oil cooler, tricky with all the space occupied by the intercooler HE & A/C condenserSince your intercooler is without fans, how have your temps been?