Advice on rotors
 

Im upgrading to drilled and slotted, what place has the best prices?


I went to cork sport and its like $33 shipping and i wasnt too down for that....lol

Drilled and slotted is not an upgrade. Use stock Mazda rotors.

Advice for rotors: Stick with plain Brembo replacement rotors. Tire Rack usually has pretty good pricing.

You can read about cross-drilling and slotting here:
http://www.baer.com/technical/faq/index.php

An upgrade would be bigger rotors. Drilled and slotted has been a proven myth for a while now.

Drilled/slotted or both have its use, Its great for racing because it cools the hot brakes much faster than solid rotors.

Most racing rotors are special treated, so its not a problem for them.

Most of the so called "drilled" rotors are just regular rotors with holes on, not special treated/stronger material, so its prone to crack under high stress/daily driving.

slotted rotors are mostly good/ok for street use. but you might want something that has been Cyro treated.

Slotted is good, my understanding of the slots is that under hard braking, there is a slight gas layer that forms between the pad and rotor, these slots give it somewhere to go improving braking and reducing fade. drilled rotors crack.

In modernized nations like the USA, gassing no longer exists due to the move away from asbestos and inferior organic material. Australian domestic pads may still have this problem if they are made with old technology, but out-gassing is a non-issue in the USA.

The main advantage of slotting is to help clean glaze from the pads during racing events. There is no documented advantage of slotted brakes on a street car other than possibly helping with water dissipation. Depending on the manufacturer, slotting may reduce the life of the brake pads.

All rotors crack. The difference is that heavier rotors can absorb more heat and have better durability. With everything else being the same, drilling reduces the rotor weight, therefore reducing its durability. Also, holes with sharp edges will tend to crack more than those that are radiused, chamfered, or otherwise rounded.

+1 Doesn't NASCAR run slotted rotors?

ive seen drilled and slotted come stock on vettes and the new camaro's and even cobalt ss's... you sayin its a gimick?

^ For the most part. Yes. They look badass on the street, but the advantage they used to offer is no longer a major concern.

... You get what you pay for it's your freaking brakes, don't chance it

well i talked to my auto tech teacher about all this, and since my last rotors warped like crazy, he told me i should go with ebc drilled and slotted, so i picked some up for 156.99 shipped.

Also yeah i know its not so much of an "upgrade" but little things like getting rid of heat and what not helps. Ill let you all know my review on these rotors if you'd like, thanks for everyone's opinion!

:scratch:

Its a gimmick.

You do not need drilled slotted.

Ask R35 owners how much they cry when their Rotors crack after every 2-3 AutoX event ...

+1 for Brembo Blanks w/ Hawk HP+ pads

iv ran slotted, drilled, and a combo of both, and they don't have the same life span and braking quality on a street car in comparison to quality blanks with good pads.

Although when it comes to rotors pushing the 13-15 inch range slotted rotors tend to be my choice of preferred design. Just saying from my experience, 15-16 inch blanks perform horribly.

well im not running auto-x events nor do i time attack, sure i get sidewayz here and there for fun but im not done with my build so i dont see any cracked rotors in the future...