View Single Post
Old 06-08-2018, 03:39 PM   #1
z28lt1
 
Drives: 2014 ZL1
Join Date: Apr 2013
Location: Northern Virginia
Posts: 288
HPDE on "old(ish)" tires?

Sorry for another tire thread.


My Supercar G2s have 6 HPDE days (although 2 days at least partially in the rain so not ran as hard) and about 3700 street miles on them. They are also around 5 years old at this point, although always kept in the garage out of most of the light and weather.



At the last event a few weeks ago, it was clear the tires are losing grip and don't have what they had it in new. They have plenty of tread life in it, and are nowhere near the wear bars though.



So, the question is: Is it getting UNSAFE to track these? Clearly, my lap times are down a few seconds and I can (maybe) live with that. What I don't want to deal with is surprise loss of grip (like these tires do when they are cold) since they are probably getting hard by now. (Surprise is probably the wrong word, as we should know cold/hard tires don't have the same traction, but you get the idea).



I'm leaning on replacing them before the next event, but part of me hates to throw away tires with plenty of tread life in them.


Thoughts?


Thanks.
z28lt1 is offline   Reply With Quote