1979-1993 & 94 Conv [Subscribe to Daily Digest] |
well, they are good rotors. i have them on my 92 900. they wear like "iron" (i know you say, but they are iron). but seriously. i'm very hard on breaks and i've got about 60,000 on mine and the slots are still there. about halfway through they got a strange pulsation in them under heavy breaking, they weren't warped, but it has something to do with the way the oval slots make contact with the pad. at a certain point the slots go out of contact, thus creating an uneven contact patch every few inches. but as far as wear on pads, i've replaced the first set of KVR's 30,000 miles into it. now i have hawks. personally, the way i drive, slots are an advantage. they shed water, keep the surface of the pad from glazing, and release gas from the pad. people can say that you don't need them, but hey, guess what, my stock set up faded often (in all the cars i drive). slots help ME.
now, what i would suggest is what we have on our aero, and that's a more traditional slot set up rather than the 2 over lapping ovals. you know what i'm talking about, the slots that jet out from the center at an angle, ummm, like the oem rotors on the viggen. i think ours were brembo rotors, maybe from a place in canada (bestbrakes, or bestprice, or soemthing like that)
stay away from cross-drilled, for all kinds of reasons. the holes fill up with brake pad residue, they *can* crack, and a proper cross-drilled rotor is not drilled, it's cast in the design.
if you want what i would suggest a good set-up, particulaly if you are concerned about wear (but i wouldn't worry about it), for an aggressive street application, i'd buy a set of the radially slotted rotors that have been crygenically frozen plus some hawk hpp pads and your set. (what i have on the aero.)
well worth the upgrade, i think (and from my own experience with track time in our m5(cross drilled), aero(cryo frozen slotted) and s4(also slotted)
good luck
nathanial
92 900
posted by 68.69.9...
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