Suspension, Brakes and Tires Discussion, which rotors and brakes should I get? in Item Specific Cadillac Discussion; For every site you find that says they don't warp, there is one that says they do.
Cast iron ...
Earl, you can't change anyone's mind you may as well caulk it up. I'm a
backyard mechanic and have done many brake jobs on my personal cars
over the years. I must say it got a whole lot easier since the advent of disc
brakes. What I do is only replace the rotors if they are causing vibes or
they are scored bad. I don't turn them either, just replace the pads. One time
I tried expensive pads, if I remember EBC's, what a mistake, not only did they
cost too much but they were terrible dusting and wore out faster and a total
waste of time and money. I'm not a race car driver, just an average old man
putzer, don't need anything but OEM, they last longest and stay cleanest and
make less noise. That's why these engineers make the big bucks. thanks, douglas
Next time I need pads ima try out the redstuff. I have akebono's for two years now and they are still about 70% left. No dust at all, seems to stop about like ac delco's. Sub, what kind of difference to you feel with the slotted rotors?
Hard one, Earl ............ I went straight from the stock GM rotors/pads to the EBC Black Dash Ultimax (whew!!!) slotted rotors and Redstuff pads. After a wild day of breakin 2 years ago, they're great brakes.
The reason I did the change was speed-related: I run the car occasionally on public days at Dover raceway and an old airport road (farm border) over in east MD. At the airport you run out of pavement and have to make a hard right turn at 6,000 feet - just over a mile. The stock brakes would literally disappear by the time you dropped from 130+ to ~40 - one time ! With the slotted rotors (and I think it's not just the slots - the ventilation vanes are better) - I still have plenty of brake on the side road. At Dover, two pretty severe slowdowns from 100+ would make the stock brakes "slippery" - no such sensation with the slotted rotors - same reasoning as above.
Coming down from speed you can hear the slots - a kind of low-pitched background 'whirrrrrrrrrrrrrrr.......', but it's not loud.
Best part: The braking action is glass-smooth............... and essentially zero dust (after breakin).
For those that DO go with EBC pads and rotors ........... The pads come with a smear of EBC's "Brake-In" compound on the face of the material. It's a hard, slightly abrasive coating that wears away quickly and smoothes the rotors as well as assures there aren't and pad resin deposits left from old pads or, in the case of the Ultimax rotors, the black zinc coating is polished off the braking surfaces. During the break-in period these pads can be scary - the noise and vibration may be just awful for the first few hard stops. Follow the recommended break-in procedure - I did mine in one afternoon, worried a lot, and am now a happy camper; someone who is not used to working with high performance brakes may well have second thoughts and be scared, especially if the break-in has to occur in a city driving environment.