Just picked up a set of PS4S's and running comfort mode and wondering what pressure they should be at? Currently 45 in all four.

 

31 PSI front and 34 PSI rear for me with a 991.1 C2S.

 

I run 32/38 in my 991.2 T

 

I'm running 32 front and 38 rear on my PS4's (C2S). Seems pretty good, although I might go down a bit more in the rears.

 

Cold:

I’m running 36/44 on .2 C2S (same wheel/tire) specs as C4/S/GTS. PS4s on mine.

I tried 33/36 but felt the car was too soft. Yes, more comfortable on local (crummy roads), but too much of a nimble feeling compromise for me.

Most published specs I see for our staggered wheel/tire spec is 34/44 regardless of tire brand. I’m going to put my trust into these baseline numbers vs personal opinion.

 

so.. "comfort mode" is just a TPMS target pressure. It won't yell at you for being overinflated, which you currently are. By a lot.

If you go into the tpms menu on your MFD, you can see the target pressures. It will tell you the difference between the read pressure and the target. Adjust accordingly.

 

Lots of threads on this subject. Setting tire pressure is VERY subjective. Read the manual and set to your preference.

 

31/34 cold, warmed up they are 34/36...super happy with the traction and handling...
I daily my car with lots of spirited driving as well as urban driving. I'll be replacing my rears with around 11k miles on them.

 

I run 30/33 cold, they get up to 32/36 at regular driving temp, works for me. Anywhere in that range seems to be fine.

 

2ND

This is exactly what I run.

 

Thanks guys....I'm going with 34/34 and see how I like it.

 

I very highly recommend sticking with the staggered pressures.

 

if you are going 34 front, I would go 37 or 38 rear. You’ve got an engine back there adding rear weight.

 

over-inflating front will increase understeer, most would say stock the car understeers enough as is, but YMMV

 

Don't run equals front / rear.
Like said, it needs to be higher for rear (engine weight)

My 991.2TTS I've been running 29 F / 33R COLD
Warms to around 32/33 F and 36/37 R.
Very spirited drives in the N. GA mountains and they work perfect.

For the track, I had to start quite a bit lower to get the 33 F / 36R preferred, due to extra heat in the tires.