RydeOn said:
Ehhh, alot of people dont know what they are talking about. They just regurgitate things. Slotted rotors are just awesome. They are meant for a street car. They wont crack or warp and you can stomp on them harder without the brakes fading. Cross drilled is the best performance wise. They resist fade better than slotted and they work great when heated up. There is only a couple drawbacks about cross drilled. They dont work nearly at all when the rotor gets wet (be careful in the rain). You have to stomp the hell out of the pedal to wipe the water off and they slip, and dont grap for a few seconds. Also, you can get cracks, but it is very hard. It takes many abusive miles for cracks to form. If you drive on the street every day, they wont form for at least a few years. They might not form ever if you dont drive like a maniac. But its not to big of a deal if you know what to expect. The results are worth it, for sure. They dont stick brakes like these on Porches and Ferraris for nothing. Id think that Porsche knows what they are doing before some guy you heard online about these brakes.
"Ehhh, alot of people dont know what they are talking ":
Now moving from myth to reality. Lets simply clarify this from a quote off the Baer Brakes FAQ:
"What are the benefits to Crossdrilling, Slotting, and Zinc-Washing my rotors?
In years past, crossdrilling and/or Slotting the rotor for racing purposes was beneficial by providing a way to expel the gasses created when the bonding agents employed to manufacture the pads began to break down at extreme temperatures. This condition is often referred to as “green pad fade” or “outgassing”. When it does occur, the driver still has a good firm brake pedal, but simply little or no friction. Since this normally happens only at temperatures witnessed in racing, this can be very exciting!
However, with today’s race pad technology, ‘outgassing’ is no longer much of a concern. When shopping for races pads, or even ultra-high performance road pads, look for the phrases, “dynamic surface treatment”, “race ready”, and/or, “pre-burnished”. When these or similar statements are made by the pad manufacturer, the pad in question will likely have little or no problem with ‘outgassing’. Ironically more pedestrian pads used on most streetcars will still exhibit ‘outgassing’, but only when used at temperatures normally only encountered on the racetrack.
Although crossdrilling and/or slotting will provide a welcome path to expend any gasses when and if they develop, it is primarily a visual enhancement behind today’s often wide-open wheel designs.
Crossdrilling offers the greatest gas relief pathway, but creates potential “stress risers” from which cracks can occur. Baer’s rotors are cast with crossdrilling in mind, from the material specified, to curved vanes, behind which the holes are placed to minimize potential crack migration. Slotted surfaces are what Baer recommends for track only use. Slotted only rotors are offered as an option for any of Baer’s offerings.
Zinc washing is then done to provide a barrier, which resists development of surface scales or rust."
http://www.baer.com/Support/FAQ.aspx#1
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