Are my rotors warped?

[Spooled]

since you brought it up , we use the premium rotors not the cheap chinese ones and we have them drilled and slotted by the pro's, they are cryod treated as well, we see in a few months when the cheaper rotors start cracking. I own a protege and take it out on the track and need good brakes not a set that just looks good on there-

Aren't the really good cross-drilled rotors not really drilled? I thought the high-end ones are cast with the holes to avoid stress fractures later. I'm not challenging, just curious because I read about it on the forums before (can't remember where). I'm not even close to being a brake expert...

 

[mspdfreak]

since you brought it up , we use the premium rotors not the cheap chinese ones and we have them drilled and slotted by the pro's, they are cryod treated as well, we see in a few months when the cheaper rotors start cracking. I own a protege and take it out on the track and need good brakes not a set that just looks good on there-

Okay, whatever gets you through the night, I guess.

 

[FC3s Boy]

Okay, whatever gets you through the night, I guess.

what does that mean?

 

[mspdfreak]

It's just an expression....don't give it a thought.

 

[biochembruin]

sounds exactly what i had.
and it's more like grinding.
it's NOT because the pads a worn, i had 60% of life on mine.
it's your rotors that are gone.

get some aftermarket ones, u wont regret it.

did you get that sound at high speed breaking or low speed? when my breaks are hot, they make a grinding sound at low speed breaking. the tech at the dealer said it's just cause the pads are glazed.

 

[Dr.Sound]

low speeds.

 

[Talrum]

I had a problem where light breaking would casue a rumbling sound taht was kinda liek water swishing around in a tank....MAzda said i had excess liquid and dirt on my rotors so they machined them a little and everything is fine now.

 

[biochembruin]

hm, anyone know what causes glazing of the break pads? is it crappy break pads or crappy rotors? or crappy both? or driving through crap?

 

[Dr.Sound]

both are crappy.

wait, u had too much liquid in your rotors, Talrum???

 

[akhilleus]

Both, I would recommend changing at least your pads to Hawk or EBC. Having your rotors refinished at the same time is a good idea, new rotors would be nice but probably unnecessary perf. wise...more cosmetic. I think i had a little grinding noise on my p5...got the pads replaced and rotors cut...no noise...the pads werent gone but were low. Hawks all the way!

 

[Dr.Sound]

i dont think rotors are cosmetic mods.
my stopping distance is better now.
the wheels dont lock up as fast as they used to on my stock, warped rotors.
EBD and ABS work much better with better rotors.

 

[Talrum]

Yea thats what they told me...actually the first dealer i brought it to said the noise was normal...i obviously didn't buy that....the second said my rotors has some sort of liquid film on the rotors.....i didn't really buy that either, i thought my rotors were warped but the problem isnt there anymore.

 

[protegeV]

I know if your rotors are warped the car will shake under high speed braking, but what about low speed?

Ive noticed that when Im braking, just as I come to a stop 5->0mph my car will shake a bit..almost like a lunging back and forth as if its braking fully, then not braking fully, then back and forth again 4 or 5 time till Im stopped....what the hell is that?

 

[Dr.Sound]

^ warped

 

[TxSpeed59]

then mine are warped too as my car does this..

 

[protegeV]

^ warped

cool, another thing to add to the dealer's list when I go for an oil change:
Warped Rotors
Cracked Muffler
Pulls to the left
Bubble in right rear tire(has road hazard warranty)
front AND rear lip coming off
Sub enclosure rattling

 

[akhilleus]

That jerking might be a malfunctioning ABS or the slide caliper screw is seized. When my rotors were warped it was only at high speeds that you noticed it.

 

[Dr.Sound]

i had the jerking at low speeds on BOTH of my MSP's.
after repplacing rotors it stopped.

i've also had the same thing on my old pontiac because of warped rotors.

hey, by the way, do any of u guys know if u can warp drums??

 

[mspeedpro]

ive been having a problem where i get an annoying squeeling from my front left brake while NOT braking. If i press the brake the sound always goes away, it only happens when im not braking- sometimes its loud as s*** and sometimes it doesnt make any noise. Also, my brake light on my dash (same like as parking brake light) comes on after i brake while driving, what gives????

 

[Dr.Sound]

03's had problems with sticking pads.
take it to the dealer.