Track Tire Pressures Across 991 Range Same?
03-14-2018, 11:48 AM
#16
Rennlist Member
Resurfacing an old threat any input specific to Pzeros?
03-14-2018, 04:58 PM
#17
Id be interested in what temps to run 'hot' when on the road as well
06-24-2019, 01:14 AM
#18
Rennlist Member
06-24-2019, 07:15 AM
#19
Rennlist Member
Pzero is far more sensitive to high temps and to put salt on the wound, it reaches high temps quickly and will let go on a curve wo a hint, just snap on you. POS of a tire.
Cup2 increases temps much slower and won’t snap even at moderately high pressures (40 give it or take-above that it won’t hold as well).
I run 32/34 hot, which quite low cold, about 22-24. Even in the event of snapping, is far more controllable.
BTW, I use the Cup2 in my DD, wo an issue. Swapping to Alpins next week, after all Chicagoland does get frigid...
PS - remember to check the rear pads. Although most of the breaking is done with the fronts, the rears get toasted bc of the PSM. Mine lasted for about 6k miles, 3 track days. Front pads are about 80%(!)...
Cup2 increases temps much slower and won’t snap even at moderately high pressures (40 give it or take-above that it won’t hold as well).
I run 32/34 hot, which quite low cold, about 22-24. Even in the event of snapping, is far more controllable.
BTW, I use the Cup2 in my DD, wo an issue. Swapping to Alpins next week, after all Chicagoland does get frigid...
PS - remember to check the rear pads. Although most of the breaking is done with the fronts, the rears get toasted bc of the PSM. Mine lasted for about 6k miles, 3 track days. Front pads are about 80%(!)...
06-24-2019, 11:42 AM
#20
Pro
Thread Starter
Wow this is a thread blast from the past. Thanks
I would like to update that since this post I’ve gone through a fairly good number of Cup 2 tires and have gradually settled on 35/35 hot front rear. I’ve done lower and higher and it just feels right here. And at this pressure it’s not so hard getting the tires warmed up from cold, so one can actually enjoy some hot laps before the session ends. I don’t remember what the cold temps are as I bleed throughout the day to stay at 35 hot.
Cheers
I would like to update that since this post I’ve gone through a fairly good number of Cup 2 tires and have gradually settled on 35/35 hot front rear. I’ve done lower and higher and it just feels right here. And at this pressure it’s not so hard getting the tires warmed up from cold, so one can actually enjoy some hot laps before the session ends. I don’t remember what the cold temps are as I bleed throughout the day to stay at 35 hot.
Cheers