Originally posted by Beelzebubba
Originally posted by iamgod
EDIT: answer this simple question for me, WHAT STOPS A CAR?
A: The conversion of energy (ie: forward motion) into heat. I fail to see how larger rotors with stock calipers accomplishes this. the surface area of disc brake pad to rotor would remain constant. You would have to increase the pad surface area too. Then you would have drivability problems with imbalance between fronts and rears if you didn't do all four. Then you have ruined the factory set pressure values for the master cylinder...
Friction coefficient of tires and pavement do weigh heavily also. Anyone who has ever switched from P.O.S. store brand to a good brand name can attest to this.
exactly, larger rotors and stock calipers do not accomplish this, larger rotors dispurse heat better and therfore will have less of a chance of brake fade, a larger caliper would not necessairly stop the car better only offer more clamping force w/ a matched master cylinder, brake booster and prop valve is used, and you are 100% correct about the balance being upset by going super large in the front and not doing anything to the back, that is why a disc/drum proportioning valve ("4020") causes more pedal travel then a disc/disc proportioning valve ("4040"), because of the factory settings, when you upset that by using larger brakes and not changing the prop valve, m/c or booster all you are doing is putting LESS pressure on the larger system, which would achieve the SAME braking distances or even INCREASE your 60-0 foot reading.