Welcome to the North American Subaru Impreza Owners Club Sunday December 21, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Motorsports

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-25-2007, 10:41 AM   #1
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default Lunched a rotor this weekend.

Let me tell you that is an interesting experience.
First let me tell you the warning signs were there. The rotor wasn't exactly new.
I mistook the noise for a warped rotor or severe pad buildup. I had inspected it before hand and did not see any cracks. I had obviously left the track before my brakes had cooled, and some how must have created a hot spot, as the noise was immediate on the next run. I parked it for the day. Went to the parts store, got new rotors. Went to change them and the bolts holding on the carrier just wouldn't budge, and I couldn't get good leverage on them anyway. I figured I'll just sand the old rotors for now. That seemed to solve the problem for the most part. I figured it was a pad buildup issue.
It didn't surprise me when the noise came back the next day....just figured it was the pad building up again.
Went into the chicane on the warm up lap, and it let go. Went into the grass and didn't touch my brakes......a little while later, some serious clunks and I'm stopped. Half of the disc got left on the track. Other half was stuck in the caliper. The hat was separated from the rest.
Fortunately, The only real damage was the rotor and the wheel got scratched up....the wheel was just a curbrashed wrx rim anyway...so it didn't make it any uglier. Luckily, it didn't take out the brake line, caliper or pads.

Managed to get the carrier loose and the new rotor on there...only to find out that it was the the correct subaru rotor. It was about a quarter inch too small in diameter. Had to use it anyway to get me home. Seem to work ok, although I doubt it will be good for the pad.

Anyways, just thought I'd share. I have video and pictures that I'll upload tonight.

Bottom line, loud brake noise is bad m'kay. Use your head and this won't happen to you

Did I also mention how much I dislike the hankooks compared to the azenis?
* Registered users of the site do not see these ads.

Last edited by sachilles; 06-25-2007 at 11:35 AM.
sachilles is offline   Reply With Quote
Old 06-25-2007, 11:07 AM   #2
trhoppe
Scooby Guru
 
Member#: 7492
Join Date: Jun 2001
Chapter/Region: South East
Location: Hotlanta, GA
Vehicle:
No race cars
www.tomhoppe.com

Default

I want to guess the brand.

I bet they have something to do with racing and also with brakes.

-Tom
trhoppe is offline   Reply With Quote
Old 06-25-2007, 11:19 AM   #3
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

TECHnically, their name has something to do with STOPing.

Truthfully, the rotor was old and well worn. It was slotted and the slots were nearly worn off.
I'm not going to blame the rotor. The symptoms were there.
sachilles is offline   Reply With Quote
Old 06-25-2007, 11:23 AM   #4
boundy3
Scooby Specialist
 
Member#: 54598
Join Date: Feb 2004
Chapter/Region: South East
Location: Orlando
Vehicle:
2004 WRX Sedan
WR Blue Pearl #68 STX

Default

wow, good thing there wasn't more problems associated with this. What track was this at?

Can't wait to see the pics.
boundy3 is offline   Reply With Quote
Old 06-25-2007, 11:29 AM   #5
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

Barely a track.
Saint Lawrence motorsports park.
3/4 mile road course, designed for go-karts. My club runs it as a fast autox.
Very hard on brakes. As a few of the turns are 180.
Its a fun place as there are no walls to worry about.
High 70's is about as fast as anyone will go in the straights.
Some pics that someone else took.
http://www.flickr.com/photos/snid/se...7600471941063/
sachilles is offline   Reply With Quote
Old 06-25-2007, 11:49 AM   #6
Draken
NASIOC Supporter
 
Member#: 16
Join Date: Jun 1999
Chapter/Region: BAIC
Location: Chico, CA
Vehicle:
1962 Miyata
Miyapeto

Default

And you'll find that SLMP is harder on brakes than most tracks. You have about 3-5 fairly hard braking points in a less than lap 60 second lap. Glad it wasn't worse than it was.

Chris H.
-former slmp runner
Draken is offline   Reply With Quote
Old 06-25-2007, 11:59 AM   #7
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

yep,
Not my first time there. We go about twice a year for the last 5+ years.
My second time with the subaru...used the audi or mini previously.

We now run a warm up lap, 3 timed laps, and a cool down. The blue wagon in the pic had oem brakes and was smoking them by the time he left the track after his runs.

I'm running carbotech panther plus, and its better suited. However, I think it might have got hung up somehow on the run previous to noticing the warpage/pad buildup.

It is very tough on brakes and tough on the front left tire. Any cars above 2100lbs need to run a tire about 80 treadwear, as the weight of the car was causing the track surface to accordion. You'll also notice the track has been patched in a few spots which is very rough on the tires.
sachilles is offline   Reply With Quote
Old 06-25-2007, 12:11 PM   #8
Draken
NASIOC Supporter
 
Member#: 16
Join Date: Jun 1999
Chapter/Region: BAIC
Location: Chico, CA
Vehicle:
1962 Miyata
Miyapeto

Default

Pics from a 2004 VT club event:

http://www.subrew.com/chris/sti/slmp_2004/index.html

The Lotus man broke his Europa so I handed him the keys to my silver STi.

Chris H.
Draken is offline   Reply With Quote
Old 06-25-2007, 12:23 PM   #9
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

Funny, we never crossed paths.
I missed that one because my mini was broken, and the audi had control arm issues.
Nick with the Europa is an excellent driver. His Europa has been down for the last year with a rebuild. Its going to be down right scary fast when it comes back.
We had a few people in 58's and one hit 56 this time around. Track seemed slower this time around.
sachilles is offline   Reply With Quote
Old 06-25-2007, 03:17 PM   #10
Roost3r
Scooby Newbie
 
Member#: 140452
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Southern NH
Vehicle:
2002 WRX
WRB

Default

I'll attest to the "sound" of a rotor cleaving itself in half at 60mph. I was past the timing tent and heading to the "john" when I head it let go. Sachmo did a great job at keeping it all together and out of the pond.

BTW, thats me in the yellow X-1/9.
Roost3r is offline   Reply With Quote
Old 06-25-2007, 03:32 PM   #11
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

edit: never mind, I'll have to post the picture elsewhere.

Nothing to see here

Last edited by sachilles; 06-25-2007 at 05:09 PM.
sachilles is offline   Reply With Quote
Old 06-25-2007, 06:25 PM   #12
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

lets try this again
sachilles is offline   Reply With Quote
Old 06-25-2007, 11:01 PM   #13
boundy3
Scooby Specialist
 
Member#: 54598
Join Date: Feb 2004
Chapter/Region: South East
Location: Orlando
Vehicle:
2004 WRX Sedan
WR Blue Pearl #68 STX

Default

did you ever measure the thickness of the rotor? was it within spec?
boundy3 is offline   Reply With Quote
Old 06-25-2007, 11:03 PM   #14
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

video
http://video.google.com/videoplay?do...34266972979760



Nope, never measured. I suppose I could now.
sachilles is offline   Reply With Quote
Old 06-26-2007, 07:57 PM   #15
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

On further inspection it looks like the carrier bracket got bent. Its rubbing on the rotor. So the car is grounded for now.
I know the 02 wrxs have different calipers within the model year. Is the carrier bracket the same regardless of caliper?

I'll ask in the brake forum as well.
sachilles is offline   Reply With Quote
Old 06-26-2007, 09:46 PM   #16
solo-x
Scooby Specialist
 
Member#: 37624
Join Date: May 2003
Chapter/Region: NESIC
Location: Doesn't drive a scooby....
Default

Um, a brake rotor doesn't wear out there. How are your slide pins on the caliper? Sticky or stuck? Something caused a fatigue failure there. Somebody should at the very least be sending you a free set of rotors IMO.
solo-x is offline   Reply With Quote
Old 06-26-2007, 09:57 PM   #17
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

Pins are fine.

Forgot to mention that it was pointed to me, the rust on the hat. It should be all freshly twisted metal. However, there is rust there indicating the hat had a pre-existing problem.
If you look at the picture you can see it.
sachilles is offline   Reply With Quote
Old 06-27-2007, 02:46 PM   #18
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

Fortunately, one of my area dealers had a bracket even though they don't normally stock it. So whomever ordered one and didn't pick it up....thank you.
I sent an email to the rotor maker to see what their response is.
sachilles is offline   Reply With Quote
Old 06-28-2007, 10:27 AM   #19
sachilles
Scooby Specialist
 
Member#: 115107
Join Date: May 2006
Chapter/Region: NESIC
Location: Waitsfield VT
Vehicle:
02 wrx wagon
61 Morris Mini

Default

Well it wasn't the bracket/carrier. Put that on this morning. Looks like the whole hub assembly/knuckle whatever the hell you want to call it is bent enough to throw off the carrier. This blows. Hope I can fix it by this sunday's autocross.
I picked up a used assembly from a local pick and pull this morning.
sachilles is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Where can I pick up some STI rotors this weekend? Mikemar New England Impreza Club Forum -- NESIC 5 09-17-2005 09:41 AM
Hiking Pics from this weekend....56K...go to lunch and bring me back a sandmich yo' TheNookie Off-Topic 32 08-01-2005 06:14 PM
B'ham Lunch/Dinner This Weekend? CrazyMike13 South East Region Forum 31 02-01-2004 02:25 PM
OMG guys you going to stand for this?!!? - AutoX this weekend! Clegg Mid West Subaru Owners Club Forum -- MWSOC 4 03-27-2002 11:58 AM
This just in; PDS this weekend at Parhump. Driven EF8 South West Impreza Club Forum -- SWIC 7 03-21-2002 03:06 AM


All times are GMT -4. The time now is 06:04 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.