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Old 01-30-2006, 10:53 PM   #65
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Join Date: Jan 2006
Location: Torrance, CA
Posts: 6
My Ride: E36 325is
Originally Posted by Mike@Modbargains
The cross-drilled or slotted rotors increase the braking performance in both wet and dry conditions.

The stainless steel brake lines don't necessarily give you more stopping power, but they definitely increase the feel of your braking pedal - giving you a much more "direct" feel to your brakes
"Stopping power" is usually used to communicate the experience an engineer calls "gain" of the brake system. Basically, it's how much deceleration you get for a given brake pedal force. There are lots of ways to change this, but more meaningful measures of brake system effectiveness are stopping distance and driver control and confidence.

The general trend among friction materials is that as the temperature capability increases (a performance pad), the coefficient of friction (one of the factors multiplied in determining overall system gain) also increases. The result is that performance pads may actually perceptibly change the deceleration experienced for a given pedal force, among their other benefits. This doesn't necessarily mean that stopping distance will be shorter, though friction material selection is one of the tools racers have available when getting a system super dialed-in.

Here's a link to our white paper on braided stainless lines:
My own car is an older E36, and I felt a significant difference when I installed the lines at about 100k miles.

Also, drilled vs. slotted is covered here:
There is a little greater friction between the pad and rotor, but not nearly as great a difference as you can get when changing pad compounds.

Hope some of this helps someone here.

Dan@StopTech is offline   Reply With Quote