tyreleader cups performance on track :(

khooni · 04-08-2015, 08:33 AM

with a set of "new" 2012 Michelin pilot sport cups from tyreleader, i went to silverstone GP yesterday to try them out.

Other than the bonnet catch issue (thanks Shimmy), the cups started ok but degraded consistently throughout the day with even weather conditions and track becoming grippier due to laid rubber. I went from a 2.40 to a 2.49 from 1st session to the final session at 4pm. Dropping at least 1 sec per session of about 5 laps. The car got noticeably edgier, I couldn't turn in as well and once turned in , I couldn't get on the power as much. I also couldn't trail brake very well into the lower speed stuff. It stops ok but I think that was because of my inability to carry enough speed.

This is my second set form tyre leader. The first set was great. I had no issues and they performed flawlessly for 5 trackdays. Even at the end, it felt loads better than the new ones I had, except maybe for the first session. The last time out I got 2.38 so I am bit annoyed that with new tyres I am slipping backwards.

Any suggestions as to why? Have the tyres been heat cycled to death (why and how?). Are they simply too "old" such that the compound hardens right after the first layer wears off? If you ask me now, I'd only be buying proper NEW tyres i.e. made in 2015............... too much of a gamble for me.

04-08-2015, 08:33 AM	#1
khooni S5 - Full Throttle Join Date: Aug 2012 Location: east london Posts: 309 Casino cash: $3592	tyreleader cups performance on track :( with a set of "new" 2012 Michelin pilot sport cups from tyreleader, i went to silverstone GP yesterday to try them out. Other than the bonnet catch issue (thanks Shimmy), the cups started ok but degraded consistently throughout the day with even weather conditions and track becoming grippier due to laid rubber. I went from a 2.40 to a 2.49 from 1st session to the final session at 4pm. Dropping at least 1 sec per session of about 5 laps. The car got noticeably edgier, I couldn't turn in as well and once turned in , I couldn't get on the power as much. I also couldn't trail brake very well into the lower speed stuff. It stops ok but I think that was because of my inability to carry enough speed. This is my second set form tyre leader. The first set was great. I had no issues and they performed flawlessly for 5 trackdays. Even at the end, it felt loads better than the new ones I had, except maybe for the first session. The last time out I got 2.38 so I am bit annoyed that with new tyres I am slipping backwards. Any suggestions as to why? Have the tyres been heat cycled to death (why and how?). Are they simply too "old" such that the compound hardens right after the first layer wears off? If you ask me now, I'd only be buying proper NEW tyres i.e. made in 2015............... too much of a gamble for me.