[rcoe]

Had track day today, car has been perfect all year no issues.

About 10 minutes in they flag me to come in, said I had white smoke coming out exhaust and they did not want me to damage the engine. I could not tell and car was running great, everything on gauges right where it should be.

Looks like the catch can was full and pushing fluid past the back into the intake.

Cleaned it up and drained the catch can. Went back out taking it a little easier and got almost 20 minutes, no smoke and noticed a small spray on my windshield that came from the vent in my Anderson hood.

Catch can was completely full. Thinking I was getting a bunch of blow by open the vents on my covers with it idling zero pressure. Pulled the #1 and #3 plugs as they are the only ones I can get out while it was hot, little oil on the bottom of the plug and 1st couple threads but tip looked good on both.

Just seems like it happens during sustained high rpm runs. Nothing really looks off in HPtuners, no misfires or anything else that I could see.

Any ideas, valves/springs or maybe rings?