New PB at Blackhawk Farms in the 370Z. Best lap is around 6 laps in.
I got caught behind a 991 GT3 and sadly lost quite a bit of time in turns 3-8 as a result. 
A low 1:18 was the theoretical best, and I feel like high 1:17 would be easy on a clear track.

The day was a success on the performance side for the car, less so on the cooling side. My new Nismo bumper also meant the undertray was over 1 cm lower, which gave a large gap for air to flow around my radiators. Temps were much higher than they've been before on this track.

Lap 5 at 5:55 had the fastest sections 1 and 2
Lap 6 at 7:15 had the fastest sections 3 and 4 and also BTOD at 1:19.892.

If I had a clean track, those sections would've been 1:18.3 combined, and I know 1:17s are in the car with a good clean lap.