Page 1 of 19 12311 ... LastLast
Results 1 to 10 of 190

Thread: Pros and Cons of Drilled/Slotted rotors

  1. #1
    Forum User Not Verified
    Join Date
    Sep 2010
    Owner Since
    March 2007

    Location
    Muskogee, Oklahoma, United States
    Posts
    353
    Thanks
    26
    Thanked 6 Times in 4 Posts

    Pros and Cons of Drilled/Slotted rotors

    In the near future I will have to put new brakes on my N/A. I have access to a set of VR-4 calipers. If I do this I am contemplating buying drilled/slotted rotors.
    The question I have is about reliability and maintenance. I know the performance will be greatly enhanced. This is a DD and I don't usually drive it too hard. But, my philosophy is "I'd rather have it and not need it. Than to need it and not have it".

    1. Should I stick with what I have.
    2. Upgrade to the VR-4 calipers w/out the drilled/slotted
    3. Do it all out.

    Your opinions please.

  2. #2
    Forum User
    Join Date
    Sep 2010
    Owner Since

    Posts
    1,187
    Thanks
    4
    Thanked 73 Times in 56 Posts
    Upgrade to the vr4 calipers, which will be a huge upgrade in performance already, and get a set of good rotors and pads. Maybe brembo blank rotors with some nice hawk pads, with the lighter weight of the N/A it should stop really well. Most people wont really notice or need slotted rotors, its not worth the extra money for a daily driven car. It it was a track car it would be a different story.

    -Austin@STM

    -Ricer Evo 8: 8.75 @ 166 Best MPH of 167. Quickest 4G63 Powered Evo in The US!!!
    -Chris Cessna's Stock short block Evo 8: 9.76@150 Worlds Fastest Stock Motor Evo 8 and First Stock Block In The 9's!
    -Shawna's DD Evo 8: 9.97@143.88 Best MPH of 145 Full leather interior, A/C, navigation, stock brakes, cruisin 9's in style
    -Cory's Stock 7 bolt talon: 10.3@136 No crank walk here...
    -STM Stock turbo/motor Stealth RT: 10.95@127 Worlds Quyickest/Fastest and most powerful Stock turbo/ motor 3S
    -James STM built Pump gas Evo8 stock motor: 10.2@137 Stock long block, and only on pump gas!
    -Mike Faggiano Evo3 16g stock motor 1g 11.0@124 just a 16g knockin on 10's door.
    And the list goes on...

  3. #3
    Not A DSM verified
    Join Date
    Sep 2010
    Owner Since
    June 2006

    Location
    Utah
    Posts
    395
    Thanks
    28
    Thanked 6 Times in 6 Posts
    Slottled:

    Pros:
    1. They sweep the pad keep everything nice and clean.
    2. They improve the initial bite.

    Cons:
    1. They are prone to cracking if the slots go all the way to the edges.
    2. They will chew up pads faster.
    3. As such, expect more brake dust.
    4. Cost.

    Cross-Drilled:

    Pros:
    1. Possible bragging rights?

    Cons:
    1. They will crack.
    2. Increased braking distances.
    3. Increased probability of fade.
    4. Cost.
    5. Possible ridicule from people that are in the know about brakes.

    Slotting is pretty much a waste of money for a DD that doesn't even drive aggressively. Plus the increased cost. Cross-drilling, on the other is a complete waste of money for anyone. There's a reason that it isn't used in any form of professional racing.

  4. #4
    Forum User
    Join Date
    Sep 2010
    Owner Since

    Posts
    1,187
    Thanks
    4
    Thanked 73 Times in 56 Posts
    We use a form of cross drilled in drag racing, it make for a very lightweight setup, but very pricey.
    The rotor/caliper/lines/hardware together weigh well under 20 pounds.


  5. #5
    Member verified
    Join Date
    Sep 2010
    Owner Since
    Oct '08 - Oct '10

    Location
    Royersford, PA
    Posts
    3,814
    Blog Entries
    1
    Thanks
    1,059
    Thanked 442 Times in 317 Posts
    One hard stop isn't quite the same as multiple hard stops That setup is friggin nice though man, even if it's only drag racing, hehe. Gonna throw some on the Stealth, or did I not see them?
    R135
    ╚╬╬╝
    - 24

  6. #6
    Forum User
    Join Date
    Sep 2010
    Owner Since

    Posts
    1,187
    Thanks
    4
    Thanked 73 Times in 56 Posts
    We actually have a couple cars around here that daily drive wiith those brakes. The loss of rotating mass really helps to.

    Back on topic though, if you want some pricing on a good set of rotors and pads, for whichever setup you go with N/A or TT let me know, ill set you up a nice package.

    -Austin@STM
    Last edited by Austin@STM; 09-23-2010 at 11:30 PM.

  7. #7
    The one. The only. verified
    Join Date
    Sep 2010
    Owner Since
    August 28, 2002

    Location
    SWPA
    Posts
    4,042
    Thanks
    182
    Thanked 699 Times in 529 Posts
    Brake rotors are heat sinks. Remove material from a heat sink and you have an ineffective heat sink.

    [06-05, 19:29] OhioSpyderman: Brian, finding a woman is NOT the answer, you need to shop for a good VACUUM

  8. #8
    seize the carpe!
    Join Date
    Sep 2010
    Owner Since

    Posts
    233
    Thanks
    5
    Thanked 3 Times in 3 Posts
    Quote Originally Posted by stealthee View Post
    Brake rotors are heat sinks. Remove material from a heat sink and you have an ineffective heat sink.
    Then what would you say about increasing the surface area? because drilled rotors do increase the surface area of the disk.

  9. #9
    Advanced Tech? verified
    Join Date
    Sep 2010
    Owner Since
    2006

    Posts
    938
    Thanks
    159
    Thanked 139 Times in 87 Posts
    Quote Originally Posted by Lithium View Post
    Then what would you say about increasing the surface area? because drilled rotors do increase the surface area of the disk.
    well... that depends on the diameter of the hole and the thickness of the disc.
    Maddog Performance Engineering

  10. #10
    seize the carpe!
    Join Date
    Sep 2010
    Owner Since

    Posts
    233
    Thanks
    5
    Thanked 3 Times in 3 Posts
    Quote Originally Posted by i3igpete View Post
    well... that depends on the diameter of the hole and the thickness of the disc.
    I'm sure the amount of surface area you would gain would be small but just for the sake of an argument.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive
Jim's (RED3KGT) Reststop
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering