2023 GT2 AWD Tire Pressure?

[Theil24]

Hi, I have aftermarket wheels and Tires. The door jam indicates to set the front tires to 38psi and the rears to 36psi. That is obviously for the stock staggered wheels. I have Michelin PS4s staggered tires with 245/35/20 up front and 285/30/20 in the rear. Should I maintain the same pressure as stock or set them differently? Any input is appreciated! Thanks

 

[D.J.]

Hi, I have aftermarket wheels and Tires. The door jam indicates to set the front tires to 38psi and the rears to 36psi. That is obviously for the stock staggered wheels. I have Michelin PS4s staggered tires with 245/35/20 up front and 285/30/20 in the rear. Should I maintain the same pressure as stock or set them differently? Any input is appreciated! Thanks

entirely up to you.

Anything under the max cold pressure listed on the side of the tire is "safe"
Why not use the factory tire pressure as a starting point - and adjust as necessary based on wear pattern.

 

[rtv900]

with a custom set up the only way to truly know is to paint a stripe across the tire from side to side and drive it.
If it wears off in the center first you have too much pressure.
Sides first too little pressure.
Evenly it's just right

 

[Snicklefritz]

with a custom set up the only way to truly know is to paint a stripe across the tire from side to side and drive it.
If it wears off in the center first you have too much pressure.
Sides first too little pressure.
Evenly it's just right

That works if camber and toe are neutral. Most are not. The Stinger allows camber adjustment in the rear only. My GT1 tends to outer edge wear in front and inner edge wear in the rear.

OP, I think that cold 40 psi all around is a very good starting point, especially if you have changed to different than OEM tire sizes.

 

[rtv900]

That works if camber and toe are neutral. Most are not. The Stinger allows camber adjustment in the rear only. My GT1 tends to outer edge wear in front and inner edge wear in the rear.

OP, I think that cold 40 psi all around is a very good starting point, especially if you have changed to different than OEM tire sizes.

good point
the paint method can still help though keeping that in mind to see if the wear pattern is significantly different than one would expect given the camber and toe of a typical setup

 

[killinghall]

Did you get the tire pressures the wrong way round because my door plate says 36 front and 38 rear...

 

[rtv900]

Did you get the tire pressures the wrong way round because my door plate says 36 front and 38 rear...

View attachment 83635

wow, I'm going to have to check mine. I've been keeping my fronts higher than the rears because I just assumed the higher pressure was front. But I do have staggered wheels so I could see that being wrong.

 

[D.J.]

wow, I'm going to have to check mine. I've been keeping my fronts higher than the rears because I just assumed the higher pressure was front. But I do have staggered wheels so I could see that being wrong.

If that's working well for you, and that suits your driving preference, threes nothing wrong with that.

 

[socalvn]

Hi, I have aftermarket wheels and Tires. The door jam indicates to set the front tires to 38psi and the rears to 36psi. That is obviously for the stock staggered wheels. I have Michelin PS4s staggered tires with 245/35/20 up front and 285/30/20 in the rear. Should I maintain the same pressure as stock or set them differently? Any input is appreciated! Thanks

I have those size tires and rims on Continentals and they have a tendency to have a soft sidewall so I've been experimenting with pressure for a while and ride comfort in order for the side wall not to roll it all in cornering I'm running 36 lb cold 40 hot it's a little stiffer ride but that's what's been required for the low profile Tire to run properly.
I could run greater than 40 lb but the ride would be way too harsh going to have the experiment with the tire and what works for you

 

[Snicklefritz]

Did you get the tire pressures the wrong way round because my door plate says 36 front and 38 rear...

View attachment 83635

RWD? AWD staggered show 38 front 36 rear psi.

 

[LordKOTL]

RWD? AWD staggered show 38 front 36 rear psi.

Confirmed on mine...

 

[Maljey]

Confirmed on mine...
View attachment 83642

Yep, this is mine as well. I have a 2022 GT2 AWD with staggered setup.

38 front
36 rear

I looked at that door card multiple times to be sure because it seemed weird to me.

 

[LordKOTL]

Yep, this is mine as well. I have a 2022 GT2 AWD with staggered setup.

38 front
36 rear

I looked at that door card multiple times to be sure because it seemed weird to me.

It does at first glance, but the amount of weight a tire can support at a given pressure depends on the volume of air the tire+rim contains. The rear tires+rims hold more volume than the fronts. The tires are very close to the same height and wheels the same circumstances, but the tires (and rims I believe) are wider. I believe that the F/R weight distribution for the AWD is 55/45, so less weight and more volume means less pressure needed to properly support the weight while giving the tire a proper flat contract patch.

 

[socalvn]

Better to run the front 2 lb higher anyway for cornering