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Old 02-02-2013, 09:33 PM   #1
stragen
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Default Abnormal front disc wear pattern

Hey guys,

I noticed a weird brake pattern on my left driver's side front rotor today. I recently had Hawk HPS pads and stainless lines installed with Super blue fluid, and the were rotors turned. That was about a month and a half ago.

Today was the first time I have really dogged the brakes since the installation, enough such that some fluid apparently spilled on the caliper was smoking off when I stopped. The rotors were quite hot (duh), even after a minute or two of driving at lower speed down a long driveway. The pattern is deep enough to easily feel, maybe one or two thou deep/built-up -not sure which- already. I haven't noticed any sound or shudder.

I was planning on going to the track next week, so I'm hoping this is a simple thing.

Anybody have any thoughts? Pics below!

Driver's Side (Abnormal)


Passenger's Side (Normal)
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Old 02-02-2013, 10:17 PM   #2
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Looks like chatter from when the rotor was turned.
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Old 02-02-2013, 11:10 PM   #3
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If it doesnt vibrate or make noise, it should be fine. You will smooth it out during the first few laps
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Old 02-02-2013, 11:22 PM   #4
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****can the rotors and the pads...the hps suck, anyway

replace with centric rotrs and something other than hawk pads...even NAPA gold pads are better
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Old 02-02-2013, 11:27 PM   #5
stragen
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Quote:
Originally Posted by rbaldi View Post
Looks like chatter from when the rotor was turned.
Is it a problem?
Quote:
Originally Posted by 2011WRX View Post
If it doesnt vibrate or make noise, it should be fine. You will smooth it out during the first few laps
All right, I'll think about that. I'm still gonna take it back to the shop where I had it installed and hear what they have to say, but it's good the alarm level isn't high.
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Originally Posted by Uncle Scotty View Post
****can the rotors and the pads...the hps suck, anyway

replace with centric rotrs and something other than hawk pads...even NAPA gold pads are better
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Old 02-03-2013, 12:10 AM   #6
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yer an idiot...yeah

great

gonna track those garbage hps pads....that's great

i hope you cook the pads real good and ball it all up.....hps pads are STREET pads...and garbage ones at that

go champ...go

bloody idiots
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Old 02-03-2013, 12:39 AM   #7
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Weird, I know many people who have done HPDEs on HPSs without issue. They must be doing something wrong.
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Old 02-03-2013, 12:43 AM   #8
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Quote:
Originally Posted by vision.dynamix View Post
Weird, I know many people who have done HPDEs on HPSs without issue. They must be doing something wrong.
They weigh less than Scotty, so there's less total heat in the brakes.
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Old 02-03-2013, 12:51 AM   #9
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As much as I hate to agree with Scotty...

The HPS really are garbage. They couldn't even handle 3 laps without fading on my 2000lb CRX with Integra Type R sized brakes. What makes you think they will be any better on a 3000lb WRX?
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Old 02-03-2013, 01:40 AM   #10
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Originally Posted by gsrcrxsi View Post
As much as I hate to agree with Scotty...

The HPS really are garbage. They couldn't even handle 3 laps without fading on my 2000lb CRX with Integra Type R sized brakes. What makes you think they will be any better on a 3000lb WRX?
Try a couple laps on stock pads
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Old 02-03-2013, 01:29 PM   #11
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Quote:
Originally Posted by stragen View Post

Try a couple laps on stock pads
Hawk HPS won't be any different. You bought the wrong pads for a track day.
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Old 02-03-2013, 03:17 PM   #12
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Quote:
Originally Posted by vision.dynamix View Post
Weird, I know many people who have done HPDEs on HPSs without issue. They must be doing something wrong.
Like getting off the track every 2 laps to let their brakes cool.

HPS' are trash. Lousy cold bite, horrible coefficient of friction in general, and miserable temperature tolerance. The only thing the HPS has going for it is a great marketing department that manages to sucker fresh n00bs every day. Then they're all cause they wonder why their brakes suck.
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Old 02-03-2013, 03:56 PM   #13
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I ran the HPS, daily driving and autocross. They were ok, but really just felt like stock replacements to me. I never pushed them on a circuit track, but they were certainly nothing to write home about.

I did actually go with them after they 'seemed' to be the 'best'. Their marketing is great. I won't be going with them next time, but they were not total trash.. just probably not what you want for the track.
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Old 02-03-2013, 06:20 PM   #14
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Ok, getting back to the issue at hand: my rotors have a strange wear pattern. If you want to make a thread to trash the pads, that's OK. I don't regret buying them unless they're responsible for this weirdness. I'm concerned about my brakes. I'd much appreciate helpful comments and info. Thanks.
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Old 02-03-2013, 06:37 PM   #15
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Quote:
Originally Posted by stragen View Post
Ok, getting back to the issue at hand: my rotors have a strange wear pattern. If you want to make a thread to trash the pads, that's OK. I don't regret buying them unless they're responsible for this weirdness. I'm concerned about my brakes. I'd much appreciate helpful comments and info. Thanks.
Quote:
Originally Posted by Uncle Scotty View Post
****can the rotors and the pads...the hps suck, anyway

replace with centric rotrs and something other than hawk pads...even NAPA gold pads are better

you were already given the most helpful comments and suggestions

and it may be that the rotors were improperly 'cut'----I would NEVER-EVER 'cut' a rotor....and they are now garbage...which is likely

if you dont know how to measure them then maybe replacing them is the best idea

i dont post out my ass or give bad advice....and i had hps pads on my car just long enough to know that they were **** and i threw them in the ****can where they belong
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Old 02-05-2013, 04:35 PM   #16
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Quote:
Originally Posted by rbaldi View Post
Looks like chatter from when the rotor was turned.
For anyone with the same issue in the future, the problem was in fact chatter when turning the rotor. Another turn fixed it with no problem. Thanks, rbaldi!
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Old 02-05-2013, 06:40 PM   #17
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Really? You turned down a rotor, twice, that doesn't really have enough meat on it to turn down even once. Win... not.
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Old 02-06-2013, 06:40 AM   #18
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If it doesn't shake or create disturbance, it should be excellent. You will sleek it out during the first few temps. . .
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Old 02-07-2013, 04:51 PM   #19
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replace with premium products.
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Old 02-07-2013, 10:47 PM   #20
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Quote:
Originally Posted by bushflyr View Post
Really? You turned down a rotor, twice, that doesn't really have enough meat on it to turn down even once. Win... not.

bloody idiots
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Old 02-11-2013, 12:20 PM   #21
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Quote:
Originally Posted by bushflyr View Post
Really? You turned down a rotor, twice, that doesn't really have enough meat on it to turn down even once. Win... not.
If it was still within tolerance after the first time it was turned why shouldn't they be able to turn it a second time? Perhaps half the problem the first time was they didn't take off enough material and that contributed to the chatter marks in the surface.




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bloody idiots
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