Slotted rotors are great for track as well as performance street driving, and are designed to heat up your pads quickly for optimum breaking performance, without removing surface area for the pads to contact. In the slotted rotors, slots wipe the surface of the rotor forcing the gases to expel through the slots. The slots also greatly improve wet weather braking by preventing hydroplaning between the pad and rotor. It’s a fact that venting the gas emitted by hot brake pads improves overall brake performance and helps minimize fade. At one time the conventional wisdom in racing circles was to cross-drill brake rotors to aid cooling and eliminates the gas emitted by brake pads. However, today’s elite teams in open wheel, Indy and Trans Am racing are moving away from cross-drilled brake rotors in favor of rotors modified with a fatigue resistant slotting process.
Slotted rotor types
Brembo Slotted Rotors
Brembo Sport slotted brake rotors are for drivers who want to improve the looks and performance of their vehicle’s original braking system without having to change additional brake components. Brembo Sport slotted brake rotors provide excellent stopping power in everyday traffic, as well as high performance street and track driving. Brembo Sport slotted brake rotors meet the challenges of high performance street driving while adding an authentic, race-ready look. Brembo Sport slotted brake rotors match the vehicle’s original equipment rotors dimensions and are fully compatible with its hubs, brake calipers and road wheels. Front and rear Brembo Sport slotted brake rotors are available to provide a matched appearance on all four corners of the vehicle, and employ one-piece vented or solid rotors depending on the vehicles original equipment specifications.
Disc Italia Slotted Rotors
Starting with select high carbon steel castings, Disc Italia slotted brake rotors undergo the race-born practice of machining multiple shallow slots into the discs front and rear surfaces to provide paths to disperse built-up heat and gasses, and assist in refreshing the surface of the brake pads. Compared to cross-drilled rotors, machined slots have been widely adopted for racing and street use because they minimize the cracking caused by repeated, high stress, high temperature brake applications. The slots are angled to use the rotors direction of rotation to enhance their performance, which makes the rotors side-specific with left and right side rotors.
Slotted rotor direction
This is a commonly asked question. Each manufacturer has their own set of directions for installation of slotted brake rotors please refer to the manufacturer’s web site, or instructions included with rotors. As a general rule of thumb the installation of a slotted brake rotor is dictated by the direction of the internal veins not the slots.
Slotted brake rotors
Slotted brake rotors are a great investment for anyone looking to use their vehicle for competition purposes. Remember when using a slotted brake rotor you should select an appropriate pad to accompany your new brake rotors. For more information, or if you need guidance in selecting an appropriate slotted brake disc give one of our specialist a call.