Help with Tire pressures

[Z43.0Si]

I have 19" wheels fitted to my Coupe and I just wanted to pick everyone's brains on what pressures I should be running.

The tire sizes are, Front 225/35/19
Rear 255/30/19

Thanks in advance

 

[Z43.0Si]

Any ideas guys?

 

[KERMIT1970]

I have 19's on my e89 non runflats running 34psi front & 36psi rears works for me

 

[paulgs1000]

I have non runflats on my roadster 18in same staggered width.

I use 32ft ibs front 34 ft lbs rear - I suggest you experiment - I found just 2ft lbs can make a difference.

 

[Kap'nZ4]

Goodyear All Seasons....
27 front, 38 in back.

Fronts grip better and back slides and burns when I wish to make em squeal like a stuck pig.

 

[Steve84N]

27psi sounds too low for the front to me. You'd end up riding the sidewall in the corners.

 

[David-H]

I have 19" wheels fitted to my Coupe and I just wanted to pick everyone's brains on what pressures I should be running.

The tire sizes are, Front 225/35/19
Rear 255/30/19

Thanks in advance

Depends if they're runflats or non-runflats.

Runflats - 36 psi front 42 psi rear
Non-runflat 32psi front 36 psi rear

 

[firebobby]

I increased my non RF's 17" to 36 rear and 32 front and I now have a different car !!! So much better

 

[Z43.0Si]

I'm still really confused by this. So, run flats are inflated to a higher psi right? With that said, the pressures in my tyres albeit that they are 19s should be lower as they are not run flats?

I'm hoping that someone with 19s will give me a concise answer, is there a formula or rule of thumb?

 

[Hilly30si]

I run 18" 34 all round. Non run flats