Quick tire question

[ns87]

My Pirelli P400 tires say max PSI 40lb. I have them at 35 right now and they look kinda low. I'm going on two big highway trips, should I put them up to 40psi? I don't want a blow out. Thanks for quick responses as I leave in a few hours!

[terryk2003]

leave them @ 35PSI! don't ever just fill them to the MAX!...

[ns87]

yehawww thanks bud!

[19Cutlass94]

35psi is more than enough. I usually run my fronts at 35psi and the rears at 30psi. Youll be fine at 35psi

[PCGUY112887]

My max is 44psi, I run em at 40 cold

I've never had any issues, however there is no need to run em that high aside from performance. I can notice a huge change between 35 and 40psi... hell I can even feel when one is running a few PSI low.

[19Cutlass94]

Only problem with running too much psi in the tires is that youll wear out the center of the tire very quickly.

[terryk2003]

Only problem with running too much psi in the tires is that youll wear out the center of the tire very quickly.

 

yup...and not as much give in the sidewall, so you could totally PWN your tire just by hitting a pothole!

[BIGBULS]

You realise EVERY W-Body ever made calls for 30psi cold right (about 33-35 hot).

 

You guys are fucking idiots for running that much pressure.

 

Stupid people............

[digitaloutsider]

I've always ran 32psi hot.

[joey b]

I run mine at the max stated on the sidewall. My 92 is at 44 psi

[PCGUY112887]

You realise EVERY W-Body ever made calls for 30psi cold right (about 33-35 hot).

 

You guys are fucking idiots for running that much pressure.

 

Stupid people............

Uhh they don't say 30psi on the door/trunk.

 

At 30psi the tire just about rolls off in a hard turn. The tires also look like their almost flat.

[BIGBULS]

 

Uhh they don't say 30psi on the door/trunk.

 

At 30psi the tire just about rolls off in a hard turn. The tires also look like their almost flat.

 

Bullshit.

 

I'd bet the tire pressure placard DOES say 30psi cold.

 

And if you want to run 44psi or somesuch go right ahead...........but when the middle of your tire wears out faster than the shoulders, don't go bitching on here.

 

 

 

Sounds to me like you need a new pressure gauge BTW........

[19Cutlass94]

They do say 30psi cold on the card in the trunk.

[Canada]

The reason why they roll of is because you have massive sidewalls with a tire bought from Wal-Mart.

[joey b]

20K miles later I notice no abnormally high wear on the center tread of the tire. I like the better handling that I get at 44 PSI and am not going to complain about the better MPG. The ride is also still more than soft enough for me. Driving on the MI roads I have yet to have severe damage to one of the said tires from a pothole, and if I do, I shelled the extra 8 bucks for roadhazard repair.

[MonteCarloDude]

I've always ran 32psi hot.

i like to run 32psi front. 30psi back.

[Crazy K]

I go between 35 and 40 depending on the tires and such 35 for 15" and 40 for 16"

 

toooooo much pressure will balloon your tires and reduce your traction by reducing your contact patch.... you will have less of a contact patch when braking!!!!!!!!

[GP1138]

We fill to 35PS" when doing oil changes at work.

[Canada]

Jesus.....the put the pressures in big bold letters on the sticker in the door jam......FOLLOW IT! Believe it or not, but engineers know more than you or I.