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Stats
Date: Aug 14 2020
Organization: Got Track Li
Track: NYST
Weather: Dry
Track Time: 6 x 20min, last hour open track
Tires
Front: Sticker 2020 Pirelli Corsa 60 Tread Street and Completion. Tire Rack
285/30/19, new day 1
Rear: Sticker 2018 Proxa RR eBay
295/30/19 , new day 1
Time: 1:37.05
DSC=off
3/10th slower than the The fastest time on half the price PS91.
Tire got destroyed after 5x20min session.
I am pissed about paying for full priced tire that got no results. I was hoping to get into 1:36 or even 1:35.
Comments:
I got the front JRZ back from rebuilding and I started to soft HS=8, LS=6, R=15, shaft=15
Since the rear where not ready, ACM put used Ohlin RT they had laying around on the rear as a place holder. Since went from 900 rear to 1000 spring, how the RT was controlling the 1000 had unknown quality and non adjustable.
The 1:37.05 was done when the front was too soft and car unstable, especially with DSC=off.
I adjusted the front to HS=12, LS=5, R=16, shaft 16 and the car returned to its stable state, but the Corsa dropped off and I switched to my other front set 265/35/19 RE 050A 140 tread tire.
On the RE 050A i was stable on 1:40 and occasionally doing 1:39.
So far the PS91 285/30/19 not only had the best time with multiple 1:37 and 1:38, it also had the fastest time on street tires over 3 years of experimenting with tires. To boot, it is still good after 2 full track day (14x20min session)
pic of Corsa after 5 sessions
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