Drilled and grooved discs are a waste of money and your pads on a standardish-power road car.
Drilling is for dissipating heat, and if you are overheating the brakes enough for drilled discs on the road you are driving like a cock.
Grooves are for skimming the top layer off of very hot brake pads to remove the near-molten, softened pad material from VERY hot brake pads, this reduces brake fade. Again, your brake pads should not be molten on the road.
The only advantage is that grooves can increase the initial bite. However, skimming the pads every rotation also increases pad wear.
To summarise, you will have 0.1% better brakes with drilled and grooved disks if you aren't braking hard constantly on track, for higher cost and shorter pad life. Gti6 brakes with good quality discs and pads are more than enough to lock the wheels. You would do better to have good quality brakes, and put the extra into better tyres for better stopping power.
Drilling is for dissipating heat, and if you are overheating the brakes enough for drilled discs on the road you are driving like a cock.
Grooves are for skimming the top layer off of very hot brake pads to remove the near-molten, softened pad material from VERY hot brake pads, this reduces brake fade. Again, your brake pads should not be molten on the road.
The only advantage is that grooves can increase the initial bite. However, skimming the pads every rotation also increases pad wear.
To summarise, you will have 0.1% better brakes with drilled and grooved disks if you aren't braking hard constantly on track, for higher cost and shorter pad life. Gti6 brakes with good quality discs and pads are more than enough to lock the wheels. You would do better to have good quality brakes, and put the extra into better tyres for better stopping power.
This post is an artistic work of fiction and falsehood. Only a fool would take anything posted above as fact.
62k Diablo Phase 1 Gti-6: Project Thread
62k Diablo Phase 1 Gti-6: Project Thread