TuvaD

Any advice from new GTS owners on their preferred tire pressures?

My 4 GTS has the center lock wheels with Pirelli P-Zero.

Dealership set the pressures at 38/44 and refused to lower them a bit prior to delivery.

44 psi at the rear seems too high and harsh.

shrimp money

Well the door jam sticker says 38/47.

That’s gonna be sky high once tires are hot.


Try 29/32 if you’re partial load, 33/38 if full load.


You’ll also need to change the setting in PCM to Comfort to reduce the TPMS targets.

pelucidor

Note that 'Partial Load' is anything under 600lbs of passengers + cargo. So you would usually be in partial load condition.
Comfort pressures of 29/32 psi for summer tires (32/35 psi for winter tires) should not be used for sustained speeds above 165mph.

Denny Swift

Normal and comfort pressures are listed in the owners manual. They are hard to find but look under "technical information."

My car was delivered with 45 in the front and 50 in the rear! The steering was twitchy, the suspension was bone jarring, and the tires howlled. I set them to 30/33 and now it all feels right.

jnkirk1974

36 Front
40 Rear

This is what has served me pretty well over the years.

TuvaD

I reduced my cold pressures down to 36/40.

What should I do in the PCM to lock that in as my normal?

Tactus Tenebris

What does your door jam plate say?

Jimmy-D

As long as you are not getting any warnings really nothing.

dhirm5

Mine was delivered with 33 front, 36 rear, cold. I just checked the pressures on 'my porsche' (which is very cool). Feels just fine to me.

That extended range fuel tank is really something, btw - topped up range of ~500 miles.

vic55

Running comfort summer at
31/35 (so slightly over) and Ill probably not go over 165 mph LOL
Pirellis

And full load is what?? 4 fatties and a piece of luggage LOL.

shrx

Yes. Sadly you have to get financing to fill it up, however.

Penn4S

Just an opinion but 36 f x 40 r cold tire pressures are still very high as they will creep to 39x44 under normal driving.
If you are not driving with bar bells in the front seat and frunk try the partial load comfort pressure and see if you like the way it rides. Just an opinion. It’s your car.

TuvaD

Thanks. What tire pressures do you suggest?

shrimp money

russbert

First, I run the summer tires year around so the basic rule I follow is I want my tires to be around 36F and 40R when they are HOT. So the cold temps vary depending on the time of the year. I have come to this "recommendation" after driving my car on the various roads around TN and NC.

I have tried lower and higher pressures but found these seem to work the best for ME, so you probably should try the various recommendations and see what suits you the best. Good luck.