Quote:
Originally Posted by Twt
This is always the trade off debate. I also track my cars 25+ days/year. I admit I am new to the M family so I really appreciate input from this forum. I bought the M2 to drive to the track and back home with a minimum of prep and a maximum of fun(speed). I know the BMW crowd loves a square set up, but most of them tell me it is for tire wear issues first then to aid turn in second. When looking and reading about this car it seems that the car rotates well, especially with nannies off and that reducing the rear, in comparison to the front , this may create more oversteer. So, I am still leaning towards a larger staggered wheel set up, like 9.5-10.5. I don't give a flip about tire wear....I am 65k into the car so tire costs are like the tail wagging the dog. One last point, I also need the nannies to work properly on the way to and from the track, so if I drive home on a square set I loose this feature and piss off the computer. Any thoughts on the above will be appreciated.
|
To keep the computer happy, the rear tires must be around 2.2% larger than the front.
The staggered setup suggest on my original post would work. For 18, you can do 265/35/18 and 285/35/18 which is a perfect 2.2% ratio. Please email me at
bmw@signaturewheel.com to work up you final track configs. I also recommend adding anti-slip knurling bead tread feature below. This prevents the tires from slipping during hard acceleration/braking. When tires slip around the wheels, the setup is no longer balanced.
This technology is trickled down from the F1 teams.