View Single Post
      11-01-2012, 07:12 PM   #87
ozinaldo
Brigadier General
ozinaldo's Avatar
Portugal
77
Rep
3,073
Posts

Drives: 1M
Join Date: Jan 2011
Location: Lisbon, Portugal

iTrader: (0)

Quote:
Originally Posted by TomTom///M View Post
Oops, my mistake / typo, obviously I meant 275/35, not 275/25.
OK, then your reputable tire guy is a bit off to say the least since you will not have any issues with the car's speed sensors or else just because you choose 1 size more from stock size. Going from 265 to 275 your tire diameter will increase from 26.3 inches to 26.6, a 0.3 inch increase (taller tire) which corresponds a bit over 1 %, that's it. Your stock tire makes 790 revs per mile while a 275/35 will make 783. These are not big enough deltas to give your car's electronics any issues and you won't be able to notice the speedometer difference which already reads around 3 to 5 % over actual speed anyway, like most cars. So with 275/35 you will see 160 km/h while you will be doing 155 and with stock tires you would read 158 or 159 and not 160! There are no other "problems" you could have with just 1 size larger rear tire.

Lots of guys here are with 275 to even 315 rears on stock wheels with 0 issues.

So, if you want them ignore that guy and just buy the PSS. Otherwise, just try the track tires since you don't care the downsides of those in Dubai conditions.
__________________
"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake.