Originally Posted by Bykw2

I would like to know the advantage of purchasing a set of drilled/ slotted brake rotors? My understanding is that there is not much performance increase in breaking with OEM size rotors. So what benefit is there to purchasing drilled/slotted rotors besides looks!!!! If anyone has a good explanation, please enlighten me!!!!!:confused:

Originally Posted by OU812

It sounds like all the above are good reasons, but if drilled or slotted rotors are so wonderful, why don't you see them more as OEM rotors? How about the claims that it is just marketing or these slots/holes weaken the rotor?

Originally Posted by H2BRUTE

I'm running 37" Toyo M/t's with 22"x12" Moto Metal wheels and, yes, I did add Brembo Brakes. I never had a problem with the oem brakes and never any brake dust. The Brembo's do provide stopping power a lot easier than the oem brakes, especially with the bigger tires and wheels. However, since I do the car show circuit, I am constantly plagued by lots of brake dust and squealing from under 5mph. When I called Brembo, they told me to expect it since these are high performance pads..For what it's worth, I should have stayed with the oem brakes. I know I would have been happier, besides not having to spend all those $$$$$..They do, however look great and for a show car, that's what it's all about..An expensive lesson learned..BRUTE

Originally Posted by Cesardajr

Just go with powerslot slotted rotors and ebc green stuff 7000 series brake pads.

Originally Posted by OU812

Cross-Drilled / Slotted Rotors

The second thing you can do to improve your brake performance is often to go to a larger rotor. We all know that this gives the rotor further ability to dissipate heat away from the pads through itself and through the air (conductive and convective heat transfer). So obviously a larger pad, a larger rotor, or both result in better brake performance by avoiding brake fade.

But what about cross drilled or slotted rotors? Well the common belief in the main stream is that somehow slotted or cross-drilled rotors allow for better performance by handling heat. This is 100 percent false. The individuals involved in such fallacies mention that air through the holes or slots work to cool the rotor (convective heat transfer into the air from the rotor). The issue is that from physics we know that metal transfers heat better then air by a significant amount. As such the larger mass of the rotor becomes more important then the larger surface area of the rotor in any situation other then the optimal. Cross drilling and slotting rotors are not optimal manners of creating metal to air transfer through larger surface areas. There is not much airflow through the holes or slots. Furthermore for cross drilling the holes will fill with brake dust in effect lowering the cooling ability of the rotors vanes they pass through.

Source

Originally Posted by H2BRUTE

I'm running 37" Toyo M/t's with 22"x12" Moto Metal wheels and, yes, I did add Brembo Brakes. I never had a problem with the oem brakes and never any brake dust. The Brembo's do provide stopping power a lot easier than the oem brakes, especially with the bigger tires and wheels. However, since I do the car show circuit, I am constantly plagued by lots of brake dust and squealing from under 5mph. When I called Brembo, they told me to expect it since these are high performance pads..For what it's worth, I should have stayed with the oem brakes. I know I would have been happier, besides not having to spend all those $$$$$..They do, however look great and for a show car, that's what it's all about..An expensive lesson learned..BRUTE