[Euro Ford Fan]

darkpuppet,Nov 15 2005, 11:48 AM Wrote:Straight from the Baer website..

Quote:What are the benefits to cross-drilling, slotting, and zinc-washing my rotors?
  In years past, cross-drilling 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.

[right][snapback]156036[/snapback][/right]

Steve that contradicts what you posted.

1) They are talking about "race pad technology" not simple street use. I find it hard to believe that anyone here other than one or two people would happily put up with a high dust level a mid or race pad for increased brake performance it brings.

2) "Crossdrilling offers the greatest gas relief pathway" Well duh it provides a larger area for the gas to escape VS slotted.

3)"it is primarily a visual enhancement behind today’s often wide-open wheel designs."


It doesn't say anything about either design leading to higher pad wear or to a decrease in either initial use or long-term durability.