A M8 has a 3dr running on 235 x 40 x17s rear on 8 inch rims
and the front has 205 x 40 x 17 on 7 1/2 inch rims
What tyre pressures would you recomend.
The car seems to track like fuck on white lines etc
would 215s on thew front help

 

If its tracking on the white lines the pressures are too high.

My M8 reckons try them on 27 psi AND check the inner and outer anti roll bar bushes