Drew46

That must be one heavy-*** suitcase to require 7 extra PSI in the rears!

Jimmy-D

Quick question-If you decide to adjust your settings from the 39psi / 45psi to say 34psi/38psi will your tire gauge screen start showing the (-) numbers??

rk-d

The TPMS allows you to set different targets. Comfort pressures are much lower targets than standard. In either mode if you are below target it will show a minus but it won’t trigger an alarm until it’s a few psi below.

harshalp

seems off lol

fstezaws

Switching to the comfort pressures made a huge difference in the first week of ownership for me. I don't mind tight cars, but it was definitely a very firm ride on the performance pressures.

3rdpedal

When I got my C2S with PASM Sport I couldn't believe how rough it was. My tires arrived (or the dealer set them) at 49/50 pressures. Once I lowered them down to 32/35 comfort, it was soooo much better. Now I don't drive all the time with the suspension in Sport Mode, usually it is in Normal, but as I understand it the Normal on a C2S PASM Sport is tighter than the not PASM Sport suspension and the Sport mode takes it to another level. We have pretty bad roads here and for a daily driver I usually leave it in Normal, unless I get to some roads with some twisties that are in better condition.

yrralis1

I had clear it up on the other thread . The first day I only drove it to the PPF installer . Someone asked me the tire pressure but I was doing it from memory . When I got the car back I checked it formally . Tires were overfilled . I dropped them to 34 and 39 and love it .

rbrenn

I have not yet received my 4GTS coupe (should arrive in the coming weeks), but there are a number of threads that speak to how much different the ride is with lower tire pressures. Looking at the Owner's Manual (one that lists the GTS options), it says for 36/45 (F/R PSI cold) for "Full load" and 33/38 for "Partial load". This is close to the door placard Drew46 shared although not identical. I wonder if the stickers vary a bit by country and if the very high cold pressure recommendations for Full Load have something to do with mileage ratings (high pressures should get you a bit better mileage). BTW, snow tire recommended pressures in the Owner's Manual for same sized tires are lower (36/42 and 32/35); my car will be a 12 month daily driver in New England, so this will be relevant to me.

When my car comes it, I'm going to start with the partial load reco (33/38 PSI cold) and then go down from there. For track use, I'd expect to go lower as those tires really heat up.

One other factor is the tire itself. I'll be getting the Michelin's (per the TYD pic) which have been reported to have less road noise (vs. Pirelli and Good Year) which could affect at least the perceived quality of the ride.

shrx

For reference this is the sticker in mine that came with Pirellis. It says 37/45.

pelucidor

The Porsche manual tire pressures table overrides the door sticker info. Note "Full Load" means over 600lbs of passenger/cargo weight and "Partial Load" is anything below that (i.e. all of us are likely in Partial Load). Also high speed pressures are sustained speeds above 165mph.

For my C2S (different for GTS) Comfort pressures denoted as 29/32psi (F/R) for summer tires and 32/35psi for my winter tires. Note at the track I was told to go lower than 29/32 due to the incredible heat that is built up at high speeds (my Vmax was 137mph) and hard cornering.

My 992 C2S is way more comfortable than my daughters' MINI JCW in terms of ride and tire noise levels.