Luchin

What are you guys running for psi in your tires?

chibianh

I'm runnin 36/35 F/R cold.

HeavyDuty

With stock wheels, I run whatever it states on the door.

So I've been told, when you increase the diameter of your wheel, you're supposed to compensate for that by increasing the pressure 1-2 PSI per diameter inch, I've heard it stated both ways.

I have no footnotes to add on that other than it was from a nat'l & eastern zone sales manager who worked for TSW, OZ and TOYO over the last 12-15 years.

jzon

38/40 psi F/R Summer.

DerwoodEE

That's also what I run.

HeavyDuty

Why don't y'all run more in the front than the rear? To induce oversteer? I know stock they state 33/33.

DerwoodEE

Actually, mine is 40/38 F/R. Not the other way around.

HeavyDuty

If with 19's I'd probably run 37/37, adding 2 psi per increase of 1" in the wheel diameter.

I'd *think* any higher would make for an uncomfortable ride AFAIK.

lusenuts

i run 33/33 also. 7 days after i got the car some a** hole in San Diego deiced i believe to steal my car because there was wrench marks and stuff on the hood and scratches on my door and i guess they decided to flatten my tires instead went to the gas station the next morning and added what the opposite side

i bought 1300 dollars tires for my f-250 SD they were procomps because they had a 40k warrenty and they told me i was over aired so no more warrenty yet my door said 75psi and i only had 44 max tire was 50 psi cold so u might want to run over some dirt and see if the whole tire is contacting the ground if it is then ur right on if the psi is too high then ull see there is no dirt on the out sides (how ever too low and u prolly wont notice) thats what the tire place told me any way so i just stick with what it says on the door and check with dirt cant go wrong if the whole tire is contacting pavment loljust my 2 cents

princelybug

iTrader: (16)

princelybug

iTrader: (16)

FWIW, I say no more than 40psi for the front, and 3psi less than the front in the rear.

jzon

My bad, i meant 40/F 38/R on a 60-70 deg daytime temp.But I also seen my PSI shoot up to 44/F 42/R on a 90 plus daytime temp.

Don Nguyen

Run what's listed on the car's door from the factory. That's what the car was designed to use and run with.