Welcome to the North American Subaru Impreza Owners Club Friday September 19, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
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 Technical > Brakes, Steering & Suspension

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 08-29-2003, 01:00 AM   #1
bemani
Scooby Specialist
 
Member#: 5673
Join Date: Apr 2001
Location: Folsom, CA
Vehicle:
2002 WRX/2005 LGT
09 Ducati M696/ZX6R

Default turning slotted and drilled dba rotors

Is there anything special I need to tell the shop to do when turning drilled and slotted DBA rotors?
* Registered users of the site do not see these ads.
bemani is offline   Reply With Quote
Old 08-29-2003, 07:36 PM   #2
WRXURV8
Scooby Specialist
 
Member#: 14848
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2007 Tribeca
TS w/ 20" OZ's

Default

Yeah, you can't turn them. Buy new ones.
WRXURV8 is offline   Reply With Quote
Old 08-29-2003, 11:32 PM   #3
Zornorph
Scooby Specialist
 
Member#: 17332
Join Date: Apr 2002
Chapter/Region: NESIC
Location: The neighbor's yard
Vehicle:
2004 Black STI
Not stock anymore

Default

are you sure? Other companies tell you it's ok, just take a minimal amount.
Zornorph is offline   Reply With Quote
Old 08-30-2003, 08:36 PM   #4
captain_dingaling
Scooby Newbie
 
Member#: 39218
Join Date: Jul 2003
Location: California
Vehicle:
2004 WRX Aspen White

Default

every rotor should have a minimum thickness that can be safely acheived weither it be slotted or crossdrilled, you can get this info from the manufacturer. now once a rotor is warped you can resurface it but it's never really the same, and a resurfaced rotor will always warp faster than a new one. you see race teams resurfacing rotors but its not becuase theyre warped to the point where they vibrate, theyre doing this to maintain a flat surface for the brake pad to stop on, because theyre using new pads. hope that helped.
captain_dingaling is offline   Reply With Quote
Old 08-31-2003, 05:59 PM   #5
imprezzakc
Scooby Specialist
 
Member#: 22462
Join Date: Aug 2002
Chapter/Region: SWIC
Location: Phoenix , Az
Vehicle:
2001 AutoFozzyFTW
SilvernBlack

Default

I have the same rotors on the front of my 00 impreza RS I had to take mine to a machine shop for turning . I would trust a machine shop before a auto parts or brake shop . Remember auto parts stores are in the buisness of selling parts .
imprezzakc is offline   Reply With Quote
Old 08-31-2003, 06:32 PM   #6
Steppin Razor
Scooby Specialist
 
Member#: 24035
Join Date: Sep 2002
Chapter/Region: BAIC
Location: San Francisco
Vehicle:
2002 GGA 5MT
Seal Gray

Default

how many times do i have to say it before people understand that BRAKE ROTORS DO NOT WARP!!!

the reason that drillled rotors are more prone to breaking is that unless the holes are chamfered and stress relieved is that the sharp edge left by the drilling creates "hot spots" where the rotor will become hotter than the rest of the rotor and this increased heat cycling weakens the iron alloy.

even IF you were using properly made drilled rotors, by machining them, you would be recreating the sharp edges on each hole and thus greatly increasing the chances of your rotor cracking. unless you went back and rechamfered each hole and then stress relieved the rotors again. but then you'd be wasting your money because drilled rotors are for tools anyway.
Steppin Razor 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
Question on slotted and drilled rotors Derx Brakes, Steering & Suspension 5 02-08-2010 05:35 PM
EBC red pad and EBC slotted and drilled rotors vibrating bozz Brakes, Steering & Suspension 12 04-07-2008 08:47 PM
FS: DBA 650 slotted and drilled WRX brake rotors bemani Private 'For Sale' Classifieds 8 10-31-2003 01:04 PM
4Sale DBA slotted and cross drilled rotors DBA-644X ( Rear ) Saposat Private 'For Sale' Classifieds 5 10-17-2003 06:52 AM


All times are GMT -4. The time now is 12:20 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.