what kind of air pressure are people running for the cooper?

 

It will depend on the tire and wheel size. I, for example, run stock 175-65R-15's and I follow the manual that says check the door panel on the drivers side. That says go with 35 PSI all around. Works for me.

Check it often, every other tank, since your driving style and the weather will affect pressure.

Motor on

 

i'm running the yoko avs es100 in 205/50/16 on the stock 5-star (16x6.5) wheels and was just wondering what pressures people use for aggressive street driving.

 

I normally run 32 psi on the street and it seems to work just fine... Ran it in the previous ES100's and I run that in my BFG G-Force Sports now...

The r-comps (Michelin Pilot Sport Cups) get 32 up front and 30 in the rear for autocrossing...

 

On the same tire size here. I run 37 front and 41 rear for less understeer and slightly stiffer sidewall. From what I've seen on the tire depth gauge, it looks like 35 psi will give you perfectly even tire wear. At 37 psi front I get slightly more wear in the middle than the inside tire.

However, gas mileage is real good, I'm averaging 33MPG over almost one year in mostly city driving, but of course, it depends greatly on driving style and the type of "city" you're driving in.