After my third 30 min session (temps were in 80s) I noticed a little coolant near the s/c tensioner pulley. I looked around and couldn't find the source. During my fourth run the car pulled timing and I looked at temp gauges and the car was over heating. I pulled in and still couldn't find the leak. The drive home was 6 hours and I didn't have any signs of over heating. I've had 4 track days of similar heat and never had any heating issues. shoul I look to upgrade the radiator? Any suggestions? Between runs I had the hood open.

I am running an intercooler kit and stock boost.

 

Find out where the leak is.

 

What kind of temps did you see? What engine management system are you running? What radiator and fans? What kind of track were you on?

 

I don't have a temp guage. I am runnin stock comptech ECM and this was at Watkins glen. My previous track experience was at limerock and njmp. I am running stock radiator and fans. I have the comptech aftercooled kit. Would you guys suggest an oil temp guage? I don't think there is a leak but rather because of the overheat I got some coolant overflow that somehow got near the belts.