I live very near to a ~1.8 mile track that let me join for a few months. I have now gone quite a few times and I have ~280 laps under my belt.
Based on my approximate lap time I can say that you will get about 10 hours on the track out a set of rears and 20 hours out of a set of fronts. I can't imagine many other tracks are harder on tires then this one (harris hill) is so this is probably the worst case. I have also heat cycled these at least 30 times, and I am still getting faster. The next set of rears will probably be a better test of how they react to heat cycling as my driving reaches more of a plateau (I just started on the track and I have improved by 9 seconds so far over that stretch).
FYI I am on 205/45/16 and 245/40/17 and I got new DA penskes about 50 laps ago. I think wear increased when i got them, but I also got a new alignment which i think has too much rear toe.
Based on my approximate lap time I can say that you will get about 10 hours on the track out a set of rears and 20 hours out of a set of fronts. I can't imagine many other tracks are harder on tires then this one (harris hill) is so this is probably the worst case. I have also heat cycled these at least 30 times, and I am still getting faster. The next set of rears will probably be a better test of how they react to heat cycling as my driving reaches more of a plateau (I just started on the track and I have improved by 9 seconds so far over that stretch).
FYI I am on 205/45/16 and 245/40/17 and I got new DA penskes about 50 laps ago. I think wear increased when i got them, but I also got a new alignment which i think has too much rear toe.