• For drilled and slotted rotors, it is important to pay attention to which is the left and right rotor. Luckily, if your rotors are not labeled, there is an easy way to tell. On the top side of the rotor, follow up along the slot. If it is correct, it will point toward the back of the vehicle.
• Cross-Drilled Rotors Not many things look cooler than a set of drilled rotors peeking out from behind a nice set of wheels, and they do in fact help with brake cooling. Back in the early days of racing, drilled rotors were a great way to vent the heavy layer of gas and dust produced by asbestos brake pads.

1. Slotted Brake Rotors Reviews
2. Best Cross Drilled And Slotted Rotors

Cross-Drilled & Slotted Rotors offer the functionality of both kinds of aftermarket brake rotors in one package. There is a catch, though: because they offer a combination as opposed to one or the other, neither function works as well together as it does separately.

Different PowerStop brake kits come with different types of rotors. It’s good to know the differences in the modifications on the rotors and how they may benefit you.

The Science Behind Heat Transfer in Rotors

Drill holes and slots in rotors can both improve braking, but under different braking scenarios. To understand how these rotor modifications can improve stopping power, it is first necessary to understand the three forms of heat transfer:

All three methods of heat transfer occur when you apply the brakes. During a typical stop, the heat transfer is about 25% conductive, 35% convective, 40% radiation. For a high temperature, high speed stop, the heat transfer is about 15% conductive, 40% convective, 45% radiation. At high speed, convection heat transfer is very important. This is why drill holes can help reduce the brake temperaure. The drill holes help air flow through the vanes. The brake temperature can drop up to 180 degrees. Brake pads work better at lower temperatures, and you reduce the risk of pulsating brakes as well.

So, Drilled or Slotted?

Slotted rotors do not improve any heat transfer. However, the slots can improve brake output by removing gas and dust that is trapped between the pad and rotor. This gas and dust reduces the friction force by preventing the pad from fully contacting the rotor.

Slotted Brake Rotors Reviews

Given the choice between drill holes and slots, the drill holes will give you better braking power over slots for normal city/highway driving. This is why high end BMW, Porsche, Corvette, and Mercedes rotors are drilled, not slotted. However, for track racing (high speed stops), slotted rotors are the better choice.

To find the right brake kit for your vehicle: www.powerstop.com
PowerStop brake kit installation videos: Installation Videos
More PowerStop video content: www.youtube.com/user/PowerstopMedia/
For more helpful Tips and How To: www.powerstop.com/info/how-tos/

Best Cross Drilled And Slotted Rotors

Remember, Don’t Just Stop…PowerStop!