When less metal is used in the construction of a rotor it has less stopping power than a rotor with more metal content in its construction. For slotted rotors with straight internal cooling vanes the direction of the slots is totally up to you and what you think looks best.
Performance Brake Blog How To Install A Set Of Performance
Drilled and slotted rotor direction. Left side driver side right side passenger side. It is not possible to tell if a drilled rotor is installed properly simply by observing the drill pattern. Drilled and slotted rotors offer drivers the consistent performance they want without changing the responsiveness of the brake pedal. Luckily if your rotors are not labeled there is an easy way to tell. This process gives you the confidence needed as a driver that you can handle whatever situation might come your way. The holes in the rotor help to get rid of excess water in the rotor when driving in the rain.
They sometimes experience premature wear. In this case there is no wrong answer. For drilled and slotted rotors it is important to pay attention to which is the left and right rotor. Powerstop official channel 12k subscribers. Some rodders have correctly stated that the brake rotors surface area is increased by drilling or slotting but the issue in heat transfer is mass not surface area. There is no wrong or right direction when installing your drilledslotted brake rotors.
But here is what we recommend. Slotted rotors have more metal than a drilled rotor. A drilled rotor has less metal content than a slotted rotor. Only in the case of straight vane or solid rotors if a customer prefers the appearance rotors may be. The problem with regard to our question of drilled and slotted rotors is that those practices act to reduce the mass of the rotor reducing the desired heat transfer. List of the cons of drilled and slotted rotors.
Stoptech sportstop slotted rotors with non directional vanes or solid rotors are marked right or left so as to be consistent with rotors following rules 1 and 2. Slots perform their function identically regardless of direction.