I dont know about your question,lol, but you are a bad dude in that 350z. Hope I didnt offend you with my line choice coming out of last turn at HSR last night. It was a great time nonetheless.
That is a great time with S tires, real fast. I ask because with low pp races i only use S tires, I think R tires should be used in Higher PP races. Its a little overkill to me to put R tires for a low PP race But that is a sweet time. My best time is a 2'20.1 in Free mode 2'19.5 in the race event with S2 in my RX-7. I would love to race that Fairlady Z of yours i know it would bring out more potential of my RX-7 👍