///MDex

OK, now I am seeing mentioning of cutting of new rotors, hard brakes, etc.

This I think brings to light what is the real break-in procedure for new rotors?

No hard braking for the first 20 mi? 100 mi?
Hard brake 6 times in a row, then cool?
Cool down process?

Mean Gene

Dex - It seems that each manufacturer has it's own recommendations. The most common themes seem to be to make 4-6 moderate stops & then allow the pad/rotor combo to cool fully. Then TRY not to make any full-pedal stops for at least 100 miles. This allows the pads & rotors to "bed in" together - basically like going easy on your engine for the first 500-1000 miles before standing on it. I HATE waiting that long!!!

BananaGS

Dex,
this is what I follow (200 miles)

The bedding in of your new POWER SLOT system is the most important part of the job. When re-assembly is completed, seat brake pads and establish pedal height by depressing the pedal several times before driving. Some vehicles may initially appear to have a very low pedal until pads become completely seated. Upon determining that installation was performed per specification, test drive the vehicle making several low speed stops to seat pads and assure the system is functioning safely.
• In order to assure maximum life and brake pad performance the system should be frequently heat cycled. Prolonged, excessive, heat during the bedding process can dramatically effect the performance of the POWER SLOT system. For best results the system should be cycled by firmly applying brake pressure, to produce heat in the system, for short period of time. Allow the system to cool and repeat the process. This will begin the tempering process. Avoid excessive or high speed braking until your new system has seated in. This will take approximately 200 to 500 miles. Not following the break-in procedure will severly effect how your new POWER SLOT system will function.


-After my installation, i drove around the neigborhood for about 10 min, with repeated of moderate (ie light ) brake, "produce heat in the system, for short period of time, drive to let air cool the rotor, and reheat. after 10-15min, Stop, done for the day"

next day, keep moderate brake for another 200 miles.

rominl

iTrader: (4)

hard brake from 60 or 70mph all the way to 10mph on straight line, do that 20 times in a row. by hard brake i mean it, smoke, etc... everywhere... after that, row the car at normal speed for 5 to 10 mins. stop, you should smell burning stuff everwhere. let the car cool down overnight without parking brake on. then drive easy and try not to hold brake at stop light (when car is at stop) for 100 to 200 miles. then you are set.

BananaGS

rominl,
your break in procedure is totally oposite from the recomendation that I quoted from Powerslot and Stillen rotors(both have similar recommendation), constant reheat, and moderate brake 200-500 miles

see_fu

brembos say to get car up to around 40mph, then apply brakes softly at first, then roll for 1/2 mile. next time get it back up to 40mph and apply more pressure. keep repeating till u're standing fairly hard on them.

rominl

iTrader: (4)

dunno, that's what i heard from brembo, stoptech, and also the guy from stillen.

JacobT

I can tell you my own experience no matter what the book says. I have been thru 3 sets of rotorsfor the past 2 years, all x-drilled/slotted rotors. I have tried the hard stop (70-0) to break them in. But all rotors got warped after 1 year (~10k miles).

I just installed my new set of SupraTT rotors this past weekend. Easy job, took me about 1 hour for both side. This time I will try the gentle way. So far it's been ~100 miles, the coating is not quite polished out yet. The brake experience is 100% perfect without any steering shimming from 80mph all the way down to fully stop. I'd think the gentle break-in method should have your rotors last a little longer. Just a thought

BananaGS

Jacob, how does it feel when driving the car and have to be gentle on the brake, sux eh:eek:

I tried to avoid speeding and fast lane so I don't have to make sudden stop, ha ha.

my rotors are completely broken in now ;-)

no vib of any type. I did 300 miles breakin period of gentle brake.

JacobT

You ARE right I drive like an 80 year old these days. Even at red light, I shift to N to avoid riding on the brakes. It really sux. Just give me a couple days, I'll be racing again:eek:

rominl

iTrader: (4)

you sure it's not the pads/rotors combo? say the pads are too hard it's going to warp the rotors more easily

JacobT

My last set of rotors was with EBC green. They got warped too

bravo261

iTrader: (1)

damn it, i just got notified i got bad pads. its a shame this stuff isn't cut-and-dry