Michael Caruso and Dean Fiore showed strong early pace on a green circuit, recording the 8th fastest time in Practice 1.
As the track rubbered up, the #23 Nissan NISMO Altima found the conditions more challenging.
Following a crash in his Carrera Cup practice, Fiore spent his Thursday evening undergoing precautionary checks at Bathurst Hospital.
He reports being fine and anticipated leaving later last night.
"It's good to get through some laps, we tried a fair few things, Dean completed his session, so it was a solid Thursday,” Caruso said. “We've got to set ourselves up nicely. We've got qualifying now but there's still a long way to go before the big race."