Bummer! I agree that motor is boat anchor status now. I watched the vid and didn't see any extreme banked sweepers or super high rpm. You kept it in the 4-6k range in the corners which usually protects the 986 motor pretty well.
Our Mitigation over 10 years on the PCA Time Trial circuit:
- 5w40 Castrol full synthetic and we watched oil temps, ending the session if things got to 240F
-Oil level matters and we made sure it was exactly topped before every session.
-We added the X51 pan but no other mechanical oiling mods. I didn't like the deep sump or the Accu-sump solutions.
- We stay off the rev limiter except down a long straight. High rpm in mid corner or zinging too high on heel-toe downshifts in a heavy braking zone has taken several motors according to the data logs.
200+ track days between two 986 BSX cars and no motors lost. Whew!
