better rotor better stop?

[IWITR]

hi everyone. i just join. well my friend got a brembo (i think thats how

spell it) rotor and he told me that better rotor will help his car stop

better? right or wrong?

[Mannyb18b]

mmmmm..no, not really. There might be a small difference but rotor upgrades are mostly for looks. Rotor,Caliber and brake pad upgrades are a different story.

[Shaguar47]

Bigger calipers and rotors will always do the trick. The only thing he'll get out of them is the better cooling on them since they are vented very well. And they may last longer without warping since they are meant for higher temps of heat.

[Phillyblunt]

It is not the rotor that helps you stop faster, it is how the rotor dissaperates the heat. Slotted rotors "shave" the heat off with each turn. Drilled rotors allow the heat to vent through the holes. The gas exchange build up between the rotor and pad is collected between the 2. Once that gas is trapped it detracts braking performance.

[Phillyblunt]

Brembo makes drilled slotted, 4 piston set ups and better than OE brakes. But you don't have to take my word for it, check out www.brembo.com or (where I got my info) www.coximport.com

[Mannyb18b]

?? he said that his friend only upgraded the rotors....meaning stock pads and stock calibers. And yes it is the rotor that helps stop faster because of the larger suface area, but thats only with the rest of the breaking system upgraded i.e(calibers,pads,lines). slotted or drilled just increases the efficiency. i could see what you are trying to say, but for what this guy is talking aboutit has nothing to do with it

[Phillyblunt]

Do you agree or disagree that heat build up causes there to be less contact between the rotor and pad? and ofcourse a larger rotor would increase the braking surface but as the heat exchange occurs between rotor and pad it becomes trapped between the 2. You will need an effective way to vent that heat, ie drilled or slotted.

[Igovert500]

The whole drilled/slotted is highly debated as helping all that much.

"quote below from Tom Wilson's Technical Correspondence column in the March 2003 issue of Road & Track magazine.

'Assuming minimal attention to where the holes are drilled, there is no meaningful difference between cast-in and drilled-in holes in rotors. ... The real difference is between drilled and non-drilled rotors. All those holes detract from a rotor's mass, and high mass content is a main ingredient in avoiding warping. As for cracking, all rotors will crack if overheated, and there is little difference between drilled and non-drilled rotors in that regard.
Cosmetics is why most rotors are drilled nowadays -- the old gassing problem that holes are supposed to address is negligible with good pads and all but absurdly flamboyant street driving -- so, many aftermarket brake tuners offer rotors with or without drilling to suit demand.'"

Taken from http://www.stealth316.com/2-brakeupgrade.htm

If you want to dramatically improve braking, upgrade the entire braking system. The biggest difference will be in teh pressure hte caliper pistons exert clamping the pads and rotors together.

Getting drilled or slotted IMO is more or less worthless, other than cosmetically, as was quoted above.