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Are you looking for higher performance brake disks for your car, but don't you know how to choose between drilled disks and slotted disks? However, the choice between the two types is not that difficult. You simply need to know the advantages and contraindications of each kind of brake disk.
Don't worry, Vivid Racing is going to help you solve the dilemma: drilled or slotted? By the end of this, you will know which type of disk is best suited to your needs. We'll let you know right away that, compared to the standard disk, both ensure better grip, better gas dispersion and more effective wet performance.
The holes or slots on the brake disk ensure a better grip and a more responsive and effective braking system. This effect is due to the holes or slots' surface, which provides better performance, particularly in the initial braking phases, thanks to a higher friction coefficient than the standard disks.
Another vital advantage of the use of drilled and slotted disks is the constant renewal of the pad's friction material. The holes also interrupt the water sheet that can be deposited in the rain on the braking surface. For this reason, even in the case of wet roads, the system reacts efficiently from the very first braking operation. Similarly, the slots that face outwards ensure more efficient dispersion of any water on the disk surface: the result is more consistent behaviour in any weather conditions.
In the same way that they disperse water, holes and slots also provide better dissipation capacity for the gasses that form due to the high temperatures between the pad and the disk surfaces.
At high temperatures, these gasses produced by the combustion of the resins that make up the friction material can cause the fading phenomenon, which reduces the coefficient of friction between the disk and the pad, resulting in a loss of braking efficiency. The presence of holes or slots on the braking surface allows these gasses to be quickly expelled, quickly restoring optimum braking conditions.
The slotted disk is generally recommended for more "extreme" use of the disk for those uses. Brembo conducts numerous bench and road tests to meet the braking system's performance and thermal-mechanical needs in the broadest possible range of operating conditions for all types of brake disks, particularly those with braking belt machining, as in the case of drilled and slotted disks.
This prevents the risk of cracks forming for both drilled and slotted disks. However, limited to use under extreme conditions, as racing conditions can be, or even just for track sessions, the slotted disk has a higher mechanical resistance than the drilled disk, so it should be preferred.
On the other hand, for those who do not expect to subject their brake disks to extreme operating conditions, the "drilled disk" option is preferable because one of the advantages of this version is that it provides a higher cooling capacity.
Both the drilling and the slot are explicitly designed to ensure superior heat dissipation compared to standard disks. However, the holes' presence implies a higher heat dissipation capacity during braking than that guaranteed by the slots that characterize the slotted disks.
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