Apex Auto Works HPDE event on Sunday 12/12/2021. This session had a lot less traffic. I did some cooldown laps and hot pits to find gaps and get a better single lap pace out of the tires instead of the usual steady pace for a whole session. Point bys were optional with passing allowed anywhere.
Likely could have broken into the high 1:43s if I had done some of the corners a bit better like in my two next best laps:


I was straddling the left curb before turning in to turn 17 (Joe Bone) which is not always possible since there were less cones in place than there sometimes are at other events but I was also being somewhat conservative on entry speed towards the wall compared to what the car is capable of. Gas was just over 1/2 of a tank; the rear feels more stable when not low on fuel. Sorry the camera quality is not great when the sun is low in the sky.

Unmodified car with traction/stability control fully disabled, new set of OEM Goodyear Supercar 3 tires (2017 date code old stock from Tire Rack), track alignment with strut mod for some extra front camber (camber: -2.8° front, -1.4° rear, toe: 0° front, +0.05° rear per side [+0.10° total rear toe]), StopTech STR 600 DOT 4 brake fluid, stock Brembo (Ferodo HP1000/1) brake pads, GM plastic track brake cooling deflectors, smaller GM metal brake dust / splash shields. The car is in track mode with touring steering mode. Ambient temperature was about 61°F and sunny. There was a Chin event the day before (CCW direction) which probably helped a bit with grip compared to some of my previous visits to this track.