Grip increase from running wider (255/275) tires? How much?
I was wondering if anyone had input on how much of an increase (in "g) in grip from switching to slightly wider tires?
It's common to upsize from a 245 fr / 265 rr width to 255/275 or even 255/285.
Assuming the same car, suspension and tire model, how much of a quantifiable gain could this result in?
Aside from the increased rolling resistance and added tire weight, are there any other drawbacks?
2011 e92 M3: AW/blk zcp, dct
2008 Civic Si FG2 ASM/blk
2005 e46 M3: SG/blk zcp, 6MT (sold)