[Aslet]

Thanks for the input.

I know that drilling the thermostat is not a fix, but I figured if it helps with the track usage, I can also do it.

My car had started having issues awhile back. At that time I had a brand new 951 radiator installed (mine had many flattened fins, etc). At the track last week it was a 75F day and the stock coolant temp gauge was at the bottom of the red zone. As the issue is that same as before the new rad was installed (and bleed) I am thinking it may be the thermostat itself.

As the water pump and belts are due soon, I may just replace everything now (pump and thermostat). Any other thoughts?