Perth-WRX.com  

Go Back   Perth-WRX.com > Technical > Mechanicals
Register Diddy Kart ArticlesAll AlbumsBlogs FAQ Members List Calendar Search Today's Posts Mark Forums Read


Welcome to Perth-WRX, click here to register!

Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 31-08-2011, 11:53 AM
Potty Training Scoobie Noobie
Member
 
Join Date: Jul 2011
Location: Perth
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
kjkjkj at standard level
Default Standard vs Slotted Rotors for road use

Hi all,

Is there any benefits in spending extra for a slotted rotor vs standard in road use conditions. ie. Do you get better braking performance from slotted in street application or you will only see in the track?
Reply With Quote
  #2  
Old 31-08-2011, 12:08 PM
RUSSGT's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: May 2007
Location: Perth
Posts: 4,683
Thanks: 109
Thanked 90 Times in 79 Posts
RUSSGT is a guruRUSSGT is a guru
Default

No. Track helps but for street use mostly it will just be wank.
Reply With Quote
  #3  
Old 31-08-2011, 12:09 PM
Philbo's Avatar
Subaru Tech Division
Member
 
Join Date: Oct 2006
Location: Behind my Keyboard
Posts: 1,633
Thanks: 25
Thanked 6 Times in 6 Posts
Philbo at standard level
Send a message via MSN to Philbo
Default

Search it has been covered more than 100 times.
__________________
97 WRX V3 STi with goodies.
Reply With Quote
  #4  
Old 31-08-2011, 12:25 PM
RichX's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: Oct 2006
Location: Pub
Posts: 4,137
Thanks: 31
Thanked 53 Times in 45 Posts
RichX knows their stuff
Default

Quote:
Originally Posted by RUSSGT View Post
No. Track helps but for street use mostly it will just be street cred.
Fixed
__________________
[SIGPIC][/SIGPIC]
Should have bought an STI
Reply With Quote
  #5  
Old 31-08-2011, 08:42 PM
WhiteRX's Avatar
Subaru Tech Division
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 1,252
Thanks: 2
Thanked 3 Times in 3 Posts
WhiteRX at standard level
Send a message via MSN to WhiteRX
Default

Slotted for street, just for looks, standard for track. IMHO after being through many many sets of rotors of all types, the standard (subaru genuine or brembo brand) brake rotors (non slotted/drilled/whatever) are all i would use now.

Slotted rotors look good, but feel worse, and perform worse than standard rotors
__________________
Version 6 STI
Reply With Quote
  #6  
Old 31-08-2011, 08:45 PM
blackwrxwagon's Avatar
DCCD Donut Driver
Member
 
Join Date: May 2010
Location: perth
Posts: 131
Thanks: 0
Thanked 2 Times in 1 Post
blackwrxwagon at standard level
Default

Quote:
Originally Posted by WhiteRX View Post
Slotted for street, just for looks, standard for track. IMHO after being through many many sets of rotors of all types, the standard good quality (subaru genuine or brembo brand) brake rotors are all i would use now.

Slotted rotors look good, but feel worse, and perform worse than standard rotors
Having eaten through a stock set of wrx pads + discs in one tuning day (morning sessions only), I wouldn't buy standard.

If you ever intend to see the track, get slotted.
__________________
'86 944 turbo - cage, PMu's, Bilsteins...
#26 E series HSV senator - bunky
Reply With Quote
  #7  
Old 31-08-2011, 08:52 PM
WhiteRX's Avatar
Subaru Tech Division
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 1,252
Thanks: 2
Thanked 3 Times in 3 Posts
WhiteRX at standard level
Send a message via MSN to WhiteRX
Default

Quote:
Originally Posted by blackwrxwagon View Post
Having eaten through a stock set of wrx pads + discs in one tuning day (morning sessions only), I wouldn't buy standard.

If you ever intend to see the track, get slotted.

Pads are a different issue. You need a high performance pad. something like a ds2500.

But rotors. i was going through a set of rotors, per track day with dba slotteds, dba 4000, then finally dba5000. every time shudder that was terrible. Swap to standard ( and undersized rotors ) and havent had shudder even when they were full of cracks. and they have been hot. Now i have a new set of brembo non slotteds, and have the same great pedal feel that the standard rotors had, plus no shudder.
__________________
Version 6 STI
Reply With Quote
  #8  
Old 31-08-2011, 09:10 PM
XT43's Avatar
Flat Four Father
Member
 
Join Date: Jun 2008
Location: Perthzeds wallet
Posts: 2,984
Thanks: 7
Thanked 166 Times in 125 Posts
XT43 is a guruXT43 is a guruXT43 is a guru
Default

Ahh, me OEMs


__________________
Fuck your signature
Reply With Quote
  #9  
Old 31-08-2011, 09:30 PM
blackwrxwagon's Avatar
DCCD Donut Driver
Member
 
Join Date: May 2010
Location: perth
Posts: 131
Thanks: 0
Thanked 2 Times in 1 Post
blackwrxwagon at standard level
Default

Quote:
Originally Posted by WhiteRX View Post
Pads are a different issue. You need a high performance pad. something like a ds2500.

But rotors. i was going through a set of rotors, per track day with dba slotteds, dba 4000, then finally dba5000. every time shudder that was terrible. Swap to standard ( and undersized rotors ) and havent had shudder even when they were full of cracks. and they have been hot. Now i have a new set of brembo non slotteds, and have the same great pedal feel that the standard rotors had, plus no shudder.
What I meant was that even with a soft compound pad, the standard rotors were eaten and overheated within 10 laps (3 laps at a time). Its would only be worse with a good high temp pad.

Funnily enough, I run PMu pads (h16 fronts and hc+ rear) on slotted dba rotors, and the rotors wear at a much slower rate despite higher temps + higher friction pad.
__________________
'86 944 turbo - cage, PMu's, Bilsteins...
#26 E series HSV senator - bunky
Reply With Quote
  #10  
Old 31-08-2011, 10:07 PM
WhiteRX's Avatar
Subaru Tech Division
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 1,252
Thanks: 2
Thanked 3 Times in 3 Posts
WhiteRX at standard level
Send a message via MSN to WhiteRX
Default

Quote:
Originally Posted by blackwrxwagon View Post
What I meant was that even with a soft compound pad, the standard rotors were eaten and overheated within 10 laps (3 laps at a time). Its would only be worse with a good high temp pad.
I think the opposite of this, the pad governs how much heat goes into the rotor, and how much goes into the caliper/pad. It also depends on the way that the friction is generated as to how much heat is created. Stock pads arent race pads they are normal use pads.

I have never had a standard rotor fail, but have had dba rotors fail, so all in all i have had very bad experiences with them. That is all.

Cheers

Tom
__________________
Version 6 STI
Reply With Quote
Reply

Tags
road, rotors, slotted, standard

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
NEW DBA T2/T3 Slotted - New specials on all rotors!!! CarModsAus CarMods Australia 0 26-07-2011 01:54 PM
DBA Rotors Group Buy mARC Non Commercial Group Buys 36 25-10-2010 10:18 AM
Dixcel Brake Rotors T-REXX The Former Workshops Forum 0 28-08-2008 10:36 AM
DBA 653X Slotted & Cross Driller Rotors (REAR) DEDLYWEPN For Sale 11 30-10-2006 01:05 PM
Cross drilled or slotted rotors trainwrex Mechanicals 13 21-10-2006 12:39 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 09:41 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO