Street vs R-spec tyres

[Reedy]

Well I got my first set of Semi Slicks and hit the track a week or so ago, unfortunately the weather sucked on the day but we did get SOME dry running in, even with the track conditions not being ideal I still beat my previous PB by about 1.2 seconds, and I was driving like an absolute mong that day as well, no rhythm at all. I know that I will go a lazy second or so quicker next time I have a run so that gives the Semi Slicks about a 2 second per lap improvement around Wakefield park.

Who else has some data to share from running different tyres? I am interested in gathering more info on the relative performance of running different tyres on the same car. Everyone seems to have an opinion on what is faster out of AD08's, RS-3's and RE-11's but there is very little hard evidence to back any of it I find.

For me it goes something like:
POS Dunlops the car came with: 1:15 (They died this day)
Yokohama AD08 = 1:13.3 (Epic tyres, cannot recommend these highly enough)
Yokohama A050 (Soft) = 1:12.1 (LOTS of room for improvement, I think I could do a low 11 with these)

Scooby (Lakeside):
Federal 595RSR: 59.89
Federal FZ201: 58.64

HRD:
Lakeside old surface JZA80 Supra Federal 595SS 1:03.58
Lakeside old surface JZA80 Supra Kumho KU36 1:01.39