Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW Related Forums > Tire, Wheel, Brake and Suspension Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-18-2010, 02:57 PM
NardoW12's Avatar
Member
 
Join Date: Feb 2006
Location: Texas
Posts: 123
NardoW12 is on a distinguished road
Blank or slotted rotors?

About time to get some new rotors for my 04 X5, I tried to order some Brembo slotted rotors but they won't be available for a few more months.

I'm using Hawk HPS pads, any recommendations on rotors to go with the Hawk HPS?(Been thinkign about getting the EBC GD rotors, anyone used them before?) And is it better to go with blank or slotted rotors?
Reply With Quote

Sponsored Links

  #2  
Old 10-18-2010, 10:25 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,730
ard is on a distinguished road
You're not tracking, right?

Solid would give marginlly better performance over slotted. (more surface area, little more mass)

Slots and holes are designed to allow the gasses that are generated from the pad hitting superheated rotors to escape from the surface...microscopically this gas from pad vaporization can cause the pad to actually 'float'. Most cars never see that type of braking.

A
Reply With Quote
  #3  
Old 10-18-2010, 10:40 PM
NardoW12's Avatar
Member
 
Join Date: Feb 2006
Location: Texas
Posts: 123
NardoW12 is on a distinguished road
Quote:
Originally Posted by ard View Post
You're not tracking, right?

Solid would give marginlly better performance over slotted. (more surface area, little more mass)

Slots and holes are designed to allow the gasses that are generated from the pad hitting superheated rotors to escape from the surface...microscopically this gas from pad vaporization can cause the pad to actually 'float'. Most cars never see that type of braking.

A
Thank you for the reply, and no I do not track the car. I will go ahead and buy some blank rotors then.
Reply With Quote
  #4  
Old 10-19-2010, 01:47 PM
tonycajjo's Avatar
Member
 
Join Date: Sep 2006
Location: CT
Posts: 702
tonycajjo is on a distinguished road
Quote:
Originally Posted by NardoW12 View Post
Thank you for the reply, and no I do not track the car. I will go ahead and buy some blank rotors then.
contact bavauto.com i think they have brembos in stock.
__________________
focus!
Reply With Quote
  #5  
Old 10-20-2010, 03:29 AM
NardoW12's Avatar
Member
 
Join Date: Feb 2006
Location: Texas
Posts: 123
NardoW12 is on a distinguished road
Quote:
Originally Posted by tonycajjo View Post
contact bavauto.com i think they have brembos in stock.
Didn't see any Brembo rotors on Bavauto.com
I know most places have the regular Brembos in stock but not the slotted one.

I may go with the EBC GD brake rotors as I can get them for $426 shipped, which IMO is pretty good since the Brembo blank ones will cost me about $340 shipped
Reply With Quote
  #6  
Old 10-20-2010, 05:49 PM
tonycajjo's Avatar
Member
 
Join Date: Sep 2006
Location: CT
Posts: 702
tonycajjo is on a distinguished road
Quote:
Originally Posted by NardoW12 View Post
Didn't see any Brembo rotors on Bavauto.com
I know most places have the regular Brembos in stock but not the slotted one.

I may go with the EBC GD brake rotors as I can get them for $426 shipped, which IMO is pretty good since the Brembo blank ones will cost me about $340 shipped
cool

yea i dont think they show up on the website, but give 'em a call they have some good prices on brembos.
__________________
focus!
Reply With Quote
  #7  
Old 10-21-2010, 01:23 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,730
ard is on a distinguished road
Slotted AND drilled rotors scream POSER.

There is simply NO real race application for both, one or the other will work. Holes will not last as long.

Plus when you combine the holes and slots you start decreasing the swept pad contact area. Fine when you can upsize a pad as you engineer the system, but if you have a fixed (stock) pad size you give up stopping power (and thermal mass)

Of course most people are clueless, so only people that know high performance brake rotors will know how silly holes plus slots really are, the rest will be impressed....
Reply With Quote
  #8  
Old 01-26-2012, 01:50 PM
Member
 
Join Date: Dec 2010
Location: St. Louis, MO
Posts: 55
justben is on a distinguished road
If that's true, then why do manufacturers make their high performance cars with drilled or slotted rotors? So all the poseurs will buy them? I don't think so.
Reply With Quote
  #9  
Old 01-26-2012, 03:08 PM
ECS Tuning's Avatar
Vendor
 
Join Date: Oct 2008
Location: Ohio
Posts: 1,399
ECS Tuning is on a distinguished road
Which model X5 do you have? I have a variety of rotors available for the X5. Brembo blanks, various EBC rotors, and quiet a few others. If you have a 4.4 HERE is a link to our selection of rotors.

ECS Tuning
Reply With Quote
  #10  
Old 01-26-2012, 08:23 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,730
ard is on a distinguished road
Quote:
Originally Posted by ard View Post
Slotted AND drilled rotors scream POSER.
....

Quote:
Originally Posted by justben View Post
If that's true, then why do manufacturers make their high performance cars with drilled or slotted rotors? So all the poseurs will buy them? I don't think so.
Ben- Read what I wrote. Look at the "AND"- upper case and all...

I stand by the assertion that no 'real' high performance car' has both.

Also. drilled rotors care not just stock rotors drilled and heat cycled. The rotor is designed with holes. So vendors that take a stock rotor blank, drill them and slot them, to make people feel they are modding, are doing them no favors.

Just my opinion- dont want to interfere with a sponsor selling mods.

A
Reply With Quote
Reply

Bookmarks

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 08:45 AM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.