Yep, same thing happened to my cammed, blown maloo mate. Oil temps of 150 on track days. I got a few 5 lap sessions in though before my dash light came on. I use royal purple 10w40 oil all the time and overfill a little for track days. I have fitted an oil cooler but haven't been to track since, oil temp sits 10 deg cooler on highway though. Track days are better in winter, in my opinion, up in qld anyway.
Cheers Greg.