Originally Posted by Solracer
Not Necissary.. sure there is a benfit with a larger rotor ,heat disapation, however if you can lock your brakes with any setup then you have reach the limit of adhesion for your tires, and probably have too much brake, or not enough tire. Remember what stops your car, there was test in a magazine I can't remeber, they put bigger brakes on a Stock RSX, the braking distance increased by 10 feet, the said it felt better and they had better modulation, but for an $1100 big brake kit the felt the should have shorter stopping distance.
Which kit did they use.
A far as rotor size, caliper stability and leverage affect on the rotor, which means a larger rotor size, those factors increase. Having said that, the more stable a caliper and more evenly it can push the pads to the rotor surface, the faster your car will stop.