Spaniarduk
Member
Hello everyone.
Tyre pressures.
I can't remember seeing much on tyre pressure figures ever since i joined this forum about three years ago. Perhaps only as a secondary matter on wheel size and rubber compound choices, so I thought I'd ask people here.
It all comes after i spent last weekend playing with different values of tyre pressure, front and rear, to what I started with. My Z4MR is virtually all OEM and from factory at 32k miles apart from having removed the front strut alignment pins to marginally reduce understeer. My original values were 2.2 bar all round. The car always felt a little crashy and unrefined at the rear on anything other that perfect tarmac. However, the slightly higher-than-it-should-be pressures at the rear gave me a little peace of mind about not losing the back end unexpectedly around corners. Yes, I confess, i am not quite Ayrton Senna! At the end of my experiment i settled for 2.1 bar at front and 2.0 bar rear. To my delight the car feels more planted, comfortable and agile in a more GT kind of way, with a rear axle that works with you instead of bouncing over potholes and hemorrhaging traction even on the straight line.
I'd like to hear what other people are doing and how that affects, for the better or worse, their own Z4s.
Thanks in advanced.
Tyre pressures.
I can't remember seeing much on tyre pressure figures ever since i joined this forum about three years ago. Perhaps only as a secondary matter on wheel size and rubber compound choices, so I thought I'd ask people here.
It all comes after i spent last weekend playing with different values of tyre pressure, front and rear, to what I started with. My Z4MR is virtually all OEM and from factory at 32k miles apart from having removed the front strut alignment pins to marginally reduce understeer. My original values were 2.2 bar all round. The car always felt a little crashy and unrefined at the rear on anything other that perfect tarmac. However, the slightly higher-than-it-should-be pressures at the rear gave me a little peace of mind about not losing the back end unexpectedly around corners. Yes, I confess, i am not quite Ayrton Senna! At the end of my experiment i settled for 2.1 bar at front and 2.0 bar rear. To my delight the car feels more planted, comfortable and agile in a more GT kind of way, with a rear axle that works with you instead of bouncing over potholes and hemorrhaging traction even on the straight line.
I'd like to hear what other people are doing and how that affects, for the better or worse, their own Z4s.
Thanks in advanced.
how is the innermost wear of your rear tyres? Are you on standard springs and dampers?
1066 Country
