Slotted Rotor Installation - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 17 (permalink) Old 11-21-2005, 08:42 AM Thread Starter
 
Join Date: Apr 2002
Posts: 1,527
Feedback: 0 / 0%
                     
Slotted Rotor Installation

Hey Folks -

I got the drilled and slotted rotors from irotor.com a couple of years ago and they're great. It looks like I may have finally warped the front ones and need to ask this before I order and install new ones:

Which way are the slots supposed to point?

In my current installation, if you look at the top of the rotor, the slots point toward the front of the car like this: \. However, I have seen pictures with the slots toward the back of the car like this: /. Which is right? Does it matter?

Thanks!
2001RT is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 11-21-2005, 09:10 AM
Intrepid Pro

 
dmondeac's Avatar
 
Join Date: Jun 2004
Location: Midlothian, VA
Posts: 2,576
Feedback: 15 / 100%
                     
Most manufacturers specifiy which direction to mount the rotors. I know my Powerstops go / this way.
dmondeac is offline  
post #3 of 17 (permalink) Old 11-21-2005, 09:16 AM
Intrepid Pro
 
Join Date: Aug 2001
Location: CT
Posts: 11,278
Feedback: 10 / 100%
                     
The vanes on a rotor act like a centrifugal air fan, drawing air from the inside of the rotor and flowing it to the outside. The vanes of a directional rotor should arch back like arms on a pinwheel. On the top side of the rotor, the vanes should curve toward the back of the car.

As far as I know every brake MFG recommends the slotting like this

JoeKD is offline  
Sponsored Links
Advertisement
 
post #4 of 17 (permalink) Old 11-21-2005, 09:39 AM Thread Starter
 
Join Date: Apr 2002
Posts: 1,527
Feedback: 0 / 0%
                     
Thanks for the input so far... we have:

Top of Front-Driver-Side Rotor points to back of vehicle (//////)
dmondeac
IntrepidXJ (Randy)
https://www.dodgeintrepid.net/forums/...4&postcount=12
https://www.dodgeintrepid.net/forums/...6&postcount=15

Top of Front-Driver-Side Rotor points to front of vehicle (\\\\\\)
JoeKD (Joe - the text of your message and the pics says the opposite of each other!)

Anyone else care to weight in? Thanks!

Last edited by 2001RT; 11-21-2005 at 09:42 AM.
2001RT is offline  
post #5 of 17 (permalink) Old 11-21-2005, 09:54 AM
Intrepid Pro
 
Join Date: Aug 2001
Location: CT
Posts: 11,278
Feedback: 10 / 100%
                     
Read this old thread from the 300M board, apparently direction doesn't really matter since the slots are straight

http://p209.ezboard.com/f300menthusi...picID=34.topic
JoeKD is offline  
post #6 of 17 (permalink) Old 11-21-2005, 10:30 AM
Intrepid Pro

 
dmondeac's Avatar
 
Join Date: Jun 2004
Location: Midlothian, VA
Posts: 2,576
Feedback: 15 / 100%
                     
In reading stop tech's explanaition it sounds like it depends on the direction of the internal cooling vanes of the rotor and not the slots or cross drillings. Should be fairly easy to see which direction the cooling vanes point.
dmondeac is offline  
post #7 of 17 (permalink) Old 11-21-2005, 10:37 AM
Intrepid Pro
 
Join Date: Feb 2003
Location: DC
Posts: 2,052
Feedback: 0 / 0%
                     
We debated this on the 300M site for a while.

Eventually we decided it doesn't matter

Also don't be so certain they are warped. Uneven filming is more likely the culprit.
DScruggs is offline  
post #8 of 17 (permalink) Old 11-21-2005, 01:22 PM Thread Starter
 
Join Date: Apr 2002
Posts: 1,527
Feedback: 0 / 0%
                     
Quote:
Originally Posted by DScruggs
Also don't be so certain they are warped. Uneven filming is more likely the culprit.
Is this possible even though I have at least 20,000 miles on the rotors? If so, what should be done instead of new rotors? As I understand it, these rotors cannot be turned since the bit would go into the cross-drill holes and snap off.
2001RT is offline  
post #9 of 17 (permalink) Old 11-21-2005, 02:02 PM
Intrepid Pro
 
Join Date: Feb 2003
Location: DC
Posts: 2,052
Feedback: 0 / 0%
                     
What I would do if they were mine is to remove them and chuck them up it a lathe and deglaze them. Not easy to do if you don't have access to a lathe.

They certainly could be warped but I wouldn't assume it for certain.
DScruggs is offline  
post #10 of 17 (permalink) Old 11-21-2005, 02:13 PM
Intrepid Pro
 
sc.intrepid's Avatar
 
Join Date: Aug 2004
Location: Charleston, SC
Posts: 4,600
Feedback: 5 / 100%
                     
Quote:
Originally Posted by 2001RT
As I understand it, these rotors cannot be turned since the bit would go into the cross-drill holes and snap off.
I don't know about those machines they put on your hub and turn your caliper, but from a machinist standpoint, you can turn drilled rotors on a lathe without breaking the cutting tool.

If you think there is some glazing on the rotors and can't get at a lathe as dscruggs suggests you might try a scotchbrite pad.
sc.intrepid is offline  
post #11 of 17 (permalink) Old 11-21-2005, 04:45 PM
Woober Goobers!

 
Ronbo's Avatar
 
Join Date: Mar 2005
Location: Tiny Pebble, AR
Posts: 48,866
Feedback: 44 / 100%
                     
I thought the slots cut on the surface of the rotor are for cleaning water off the rotor? The slots give the water someplace to get channeled out from under the brake pads, rather than getting compressed between the pad and the rotor. The cooling vanes are in the center between the two rotor surfaces. Just my understanding of how things work.
Ronbo is offline  
post #12 of 17 (permalink) Old 11-21-2005, 05:00 PM
Intrepid Pro
 
Join Date: Feb 2003
Location: DC
Posts: 2,052
Feedback: 0 / 0%
                     
Nope

The slots are to allow the boundary gases that build up under a heavy stop to escape thereby avoiding the phenomenon known as brake fade.
DScruggs is offline  
post #13 of 17 (permalink) Old 11-21-2005, 05:21 PM
Intrepid Modder
 
Join Date: May 2004
Location: memphis
Posts: 374
Feedback: 0 / 0%
                     
Could you go over them with a Da sander ?
swalker is offline  
post #14 of 17 (permalink) Old 11-21-2005, 05:34 PM
Intrepid Pro
 
CDN R/T's Avatar
 
Join Date: Jun 2005
Location: Brampton, Ont.
Posts: 1,501
Feedback: 0 / 0%
                     
Shouldn't be an issue. Carbide generally doesn't like interupted cuts. But the material used in casting rotors doesn't create much tip loading and shouldn't chip the bit. Of course the slots will lose depth, and their cooling effect.
CDN R/T is offline  
post #15 of 17 (permalink) Old 11-21-2005, 07:04 PM
Garfield Rules
 
95trep3.3's Avatar
 
Join Date: Apr 2003
Location: Summerville, SC
Posts: 9,144
Feedback: 4 / 100%
                     
Quote:
The slots are to allow the boundary gases that build up under a heavy stop to escape thereby avoiding the phenomenon known as brake fade.
Brake fade is caused by overheating of the pads and glazing them not gas traped between the pad and rotor. The slots are only there for cooling
95trep3.3 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionaly, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
Cross drilled and slotted rotors cheap check out...1st and 2nd gen LH cars Black_LHS General Discussion 13 06-29-2005 06:43 PM
Drilled and Slotted Rotors = what? busta_scoob Performance / Modifications (First Generation) 14 11-04-2004 12:59 PM
Slotted rotor question.... xtremeLHS Chrysler Concorde, LHS, and Eagle Vision 5 05-15-2003 12:17 AM
Drilled and slotted rotors for 1st geners... viprman Performance / Modifications (First Generation) 7 02-11-2002 08:23 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome