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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
Technically OEM blanks should stop your faster than cross drilled or slotted because they have a larger surface area for more stopping power.
Cross drilled and slotted rotors will have an improvement. They disperse heat that is coming off the rotors. The slotted/vented rotors work much better than cross drilled. Cross drilled are nice, but are mainly for looks. Vented is a much more efficient way of relieving heat that builds on rotors.
Cross drilled slightly eats up your pads faster than blanks. Vented eats up your pads much faster than blanks.
I dont know about club racers, but i'm sure the majority of people who go to the track or beat up their cars in parking lots use some sort of ventilated braking system to attempt to reduce brake fading.
As stoarmin said, DONT FORGET TO PUT IN NEW FLUID.
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Your Ride: 1994 325is, 2000 z3 2.3
If you're getting brake fade after 25 minutes there's a problem. You're running waay too much power for the stock brakes even with an aftermarket brake pad set. Crossdrilled or Slotted rotors won't help that. BBK for you...
Maybe you dont know what Mullohand Drive is. It's one of the msot difficult canyon runs in SoCal that I can find. It's 25 minutes of nonstop 2nd/3rd gear blind turn where its either go off a cliff or hit gravel/side of mountain. It's a very difficult run that leaves everyone friggin tired. On the last two 30-45 Bimmer meets that have gone on Mullhand, there have been an accident both times. One guy needed new brake fluid and he had a lto of brake fade, lost brakign power, and almost went off the cliff. On a recent one a e46 had brake fade and tapped the e46 in front of him. Most people would think peopel are makign up excuses to say they have brake fade to hide guilt in a accident, but if youve ever been ont hese runs youd believe them. No matter wut u do, u defintely take full advantage of those short straightways where you can hopefully cool down your brakes enough for another set.
Not stupid at all. Brake fade is when you step on the brakes and little or nothing happens. Feels like it wants to grab but doesn't. You have full peddle feeling but it's similar to driving on ice. It happens when hard on brakes (occassionally) or when you're first burnishing in new pads/rotors. That's why they tell you to avoid traffic and hard stops for first 100+miles. Visiting "bud" says " try braking using your clutch peddle. It's like that"