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Originally Posted by JetspeedCamry
Ahh..so thats why the likes of Porshe and Ferrari cross-drill and slot their rotors...wow factor! Duh..silly me! 
I put DBA slotted rotors in my Gen 2, and noticed a big improvment in braking. She hauls up now!! Ask anyone who has ridden in my car :P |
Drilled rotors (in the case of Ferrari) are used for weight reduction. The same reason light weight performance cars also have holes drilled in the cluch and brake pedals. It is a super anal way to get rid of every last ounce of weight.
Slotted rotors actually slice the pad a bit to prevent glazing. Unless you ride your brakes, there is no need for these and preventing glazing is not a performance increase.
In all honesty, if you can lock your brakes (without ABS), they have plenty of stopping power and you have no need to increase stopping power at that point. If you can make the ABS activate on a dry road, then the same applies.
What higher end braking products can buy you is heat tolerance and modulation (for example: race pads will resist fading more than standard one as they are designed to work in a higher heat range. higher friction ratings on pads can help with modulation, a higher friction pad will grip faster, make your wheels lock up faster with less pressure on the brake pedal).
All factory braking systems I have seen have enough power to lock the wheels (or engage ABS) on a dry road if you stand on them.
If you want to stop better, install a sticky tire that will grip the road better. If your tires can grip more before they lock up, you will stop faster.
If your problem is brake fade, then high performance pads may help you as they can tolerate heat better. Drilled and slotted rotors have a lower thernal capacity than an exact rotor without the drilling/slotting. You want the highest thermal capcity possible to resist fade.
If your problem is that you warp rotors quickly, maybe the cryogenic are the way to go or if you want to spend $2000 a big brake kit with a larger rotor that has a higher thermal capacity (not worth the money in most cases IMO)
A good quality rotor made from a quality steel is all you need (this eliminates the chinese made rotors on ebay
) Brembo does make some good blanks, but IMO you pay to much simply for the name. This is why I recomend Raybestos.
Pads are another story - you have to watch compounds and heat ranges that they perform in and buy the ones that suit your driving. The high end race track pad often sucks on the street. Get the right tool for the job
Bottom line is there are zero performance advantages to slotted and drilled for a street car only negatives and an asthetic appeal mostly to those who do not realize the negatives. All companies that sell rotors will play on misinformation to make a buck.
it was a 9821), idq 15, d5 300, d3 400, (seas 7" woofers, lpg tweets), and prolly the only cam with a cb radio
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