Here's Why Cheap Brakes are Bad
Page 1 of 3 123 LastLast
Results 1 to 10 of 23
  1. #1
    ...is not Kevin Finnerty
    Moderator
    ABM's Avatar
    Join Date
    May 2012
    Location
    Somerset
    Posts
    4,680
    Car Specs:
    Year
    -
    Model
    -
    Engine
    -
    Fuel
    -
    Thanks
    2,943
    Thanked 4,561 Times in 2,731 Posts


    Donate Please click the
    image to support
    BMWForums.info
    Click Here To Contribute To Our Site

    Here's Why Cheap Brakes are Bad

    So you're looking for new discs and you see some drilled ones, you think "Yeah, they'll make my car look cool and they'll be really good at stopping too!"

    No.

    This is what happens:



    All the grooves that go around the disc are caused by the metal around the holes breaking up, like this:



    That metal then gets picked up by the brake pad and scores the disc as you can see. This means that the friction surface is reduced, which means your car won't stop as well as it should. It's not uncommon for the discs to crack between the holes, either.

    So... if you want better braking, either get standard discs, uprated pads and new fluid (maybe even some braided brake lines too), or buy GOOD quality discs; either just grooved, or if you really want the holes, look for discs that have the holes cast into them as opposed to drilled (but they'll tend to be very expensive). The best set-up I've ever used on a road car (without a big caliper conversion) was Tarox G88 grooved discs and Tarox Strada pads.

    If you've got some cheap drilled discs, it's worth throwing them in the bin, or at the very least, checking them regularly. When they start to break up, change them.

  2. The Following 3 Users Say Thank You to ABM For This Useful Post:

    Devil (09-07-2012),Joshcoupe (26-07-2012),osomar (20-07-2012)

  3. #2
    BFI Veteran
    jrfty's Avatar
    Join Date
    Apr 2012
    Location
    London
    Posts
    2,154
    Car Specs:
    Year
    2004
    Model
    E46
    Engine
    330ci
    Fuel
    V-Power
    Thanks
    910
    Thanked 1,272 Times in 895 Posts


    What's your opinion on EBC Ultimax slotted please?

    Ultimax BlackDash USR Slotted Rotors | EBC Brakes

    Johann
    Eibach Sportline springs, Powerflex bushes, 8.5j/10j 19" Matt black VMR V710s 235/265 Vredestein Ultralac Sessanta, All black badges, 35% tint, black front grille, lamin-x tint film on front & rear lights, 55W 7.5k HIDs, Orion V2 halo LED angel eyes, Cree reverse bulbs, 18SMD number plate lights, smoked side markers, keyhole delete, K&N panel filter, private plate, bwchiptune ecu remap. http://youtu.be/atvGNof4iB0

  4. #3
    Moderator
    simonsays's Avatar
    Join Date
    Mar 2012
    Location
    Wigan
    Posts
    11,872
    Car Specs:
    Year
    2003
    Model
    E46 Coupe
    Engine
    330i
    Fuel
    Petrol
    Thanks
    12,802
    Thanked 7,168 Times in 5,450 Posts


    Quote Originally Posted by jrfty View Post
    What's your opinion on EBC Ultimax slotted please?
    iirc MartynD binned his EBC drilled & grooved discs after 2 yrs, then went back to OEM !

  5. The Following User Says Thank You to simonsays For This Useful Post:

    jrfty (09-07-2012)

  6. #4
    ...is not Kevin Finnerty
    Moderator
    ABM's Avatar
    Join Date
    May 2012
    Location
    Somerset
    Posts
    4,680
    Car Specs:
    Year
    -
    Model
    -
    Engine
    -
    Fuel
    -
    Thanks
    2,943
    Thanked 4,561 Times in 2,731 Posts


    Hi Johann,

    I'm not really a fan of anything made by EBC, but if I had to have some of their stuff, those would be what I'd go for. For the same sort of price though, there are better options.

    Nitrac 12-Groove: http://www.europerformance.co.uk/pag...?product=82700

    Tarox G88 - http://www.europerformance.co.uk/pag...product=293537

    Brembo Grooved - http://www.europerformance.co.uk/pag...product=330986

  7. The Following 2 Users Say Thank You to ABM For This Useful Post:

    jrfty (09-07-2012),Mark@Vorny.co.uk (09-07-2012)

  8. #5
    My car,my rules and anti oem resident
    BFI God you need to get out more!
    Spirit's Avatar
    Join Date
    Apr 2012
    Location
    kings lynn-norfolk
    Posts
    6,190
    Car Specs:
    Year
    2002
    Model
    e39 m5
    Engine
    5.0 v8
    Fuel
    petrol
    Thanks
    6,219
    Thanked 4,960 Times in 3,195 Posts


    My red stuff pads and brembo disc are fine

    I dont drive like miss daisy either

  9. #6
    Banned
    dailydoggy's Avatar
    Join Date
    Mar 2012
    Location
    cheshire
    Posts
    3,710
    Car Specs:
    Year
    2001
    Model
    E46
    Engine
    330i
    Fuel
    Petrol
    Thanks
    661
    Thanked 2,360 Times in 1,417 Posts


    road cars have solid discs for a reason ie: maximum braking force with less effort at the expense of the cooling because road cars tend not to achieve the higher braking forces and temps cos of the lower speeds involved and the urban driving style compared to track cars where drilled and brake cooling is more of a requisite ...

  10. The Following 2 Users Say Thank You to dailydoggy For This Useful Post:

    Devil (09-07-2012),osomar (20-07-2012)

  11. #7
    Work, Work, Work & No Play
    BFI Supreme
    Devil's Avatar
    Join Date
    Apr 2012
    Location
    Norfolk
    Posts
    3,240
    Car Specs:
    Year
    2013
    Model
    E82
    Engine
    120d (N47D20)
    Fuel
    V-Power Nitro+ Diesel
    Thanks
    4,854
    Thanked 1,737 Times in 1,303 Posts


    Quote Originally Posted by dailydoggy View Post
    road cars have solid discs for a reason ie: maximum braking force with less effort at the expense of the cooling because road cars tend not to achieve the higher braking forces and temps cos of the lower speeds involved and the urban driving style compared to track cars where drilled and brake cooling is more of a requisite ...
    That makes sense...

    Looks like Pagid are the way forward then...

  12. #8
    Moderator
    Mark@Vorny.co.uk's Avatar
    Join Date
    Mar 2012
    Location
    Appleby Magna
    Posts
    3,010
    Car Specs:
    Year
    2013
    Model
    Porsche Carrera 4S
    Engine
    3800
    Fuel
    Petrol
    Thanks
    4,443
    Thanked 2,901 Times in 1,683 Posts


    I remember doing the whole braided hoses, EBC discs and pads on a CBR600 I had. I binned all the EBC stuff and went back to OEM. Never again will I spend a on EBC
    summittendo a car nimis,
    .. insipiens est in opinione mea'



    2015 Golf R
    2013 Abarth 595 Competizione
    2013 Carrera 4S PDK



  13. #9
    BFI God you need to get out more!
    Stal1878's Avatar
    Join Date
    Apr 2012
    Location
    Somerset
    Posts
    11,036
    Car Specs:
    Year
    1999
    Model
    E39 528i Sport
    Engine
    M52TUB28
    Fuel
    Petroleum
    Thanks
    4,247
    Thanked 5,049 Times in 4,188 Posts


    My grandparents live near appleby Magna, are you going to sebs nhamps meet Mark?

  14. #10
    Moderator
    Mark@Vorny.co.uk's Avatar
    Join Date
    Mar 2012
    Location
    Appleby Magna
    Posts
    3,010
    Car Specs:
    Year
    2013
    Model
    Porsche Carrera 4S
    Engine
    3800
    Fuel
    Petrol
    Thanks
    4,443
    Thanked 2,901 Times in 1,683 Posts


    Quote Originally Posted by Stal1878 View Post
    My grandparents live near appleby Magna, are you going to sebs nhamps meet Mark?
    I will try, weekends consist of running lad from one cricket game to the next, so if I can farm him out I will be there

    Where do your grandparents live ?
    summittendo a car nimis,
    .. insipiens est in opinione mea'



    2015 Golf R
    2013 Abarth 595 Competizione
    2013 Carrera 4S PDK



Page 1 of 3 123 LastLast

User Tag List

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •