1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

1982 xj650 brake rotor drilling

Discussion in 'XJ Technical Chat' started by jamcam1999, Oct 21, 2010.

  1. jamcam1999

    jamcam1999 Member

    Messages:
    52
    Likes Received:
    0
    Trophy Points:
    6
    Location:
    <a href="http://maps.google.com/maps?q=50.064192+-
    I am thinking about drilling my front brake rotors mainly for cosmetic appearance.
    Has anyone experienced increased or decreased braking performance after drilling their rotors. Any comments would be appreciated. Thanks, Jack
     
    jamcam1999, Oct 21, 2010
    #1
  2. iwingameover

    iwingameover Active Member

    Messages:
    2,145
    Likes Received:
    4
    Trophy Points:
    38
    Location:
    Maryland
    Why not get a set that is already slotted/drilled?

    you'll want to be careful with the heat and also chamfer or round over the edges of the holes or they will cut into the pads.
     
    iwingameover, Oct 21, 2010
    #2
  3. Cmccully04

    Cmccully04 Member

    Messages:
    535
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    State College, PA
    Wow.....good time to ask this question. Go to your local wal-mart and pick the up the issue of The Horse back street Chopper mag. It has a great how to article on how to do this correctly in your own garage, with minimal of tools. I read the article and was very impressed, picking up the mag for $5 would answere all your questions and give you everything you'd need to know.

    *Chris
     
    Cmccully04, Oct 21, 2010
    #3
  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

    Messages:
    21,283
    Likes Received:
    418
    Trophy Points:
    83
    Location:
    Rural SE Michigan 60 miles N of Motown
    I had a pro do mine.

    I have two 550 Secas, one has a stock Yamaha brake with a drilled rotor and stainless lines (Yamaha rotor, Yammie pads.)

    The other has an EBC full-floating disc and EBC pads, with stainless lines.

    I can tell you this about the effectiveness of the mods:

    -biggest SINGLE improvement in braking was the stainless lines.

    -drilling the stock rotor alleviated a pronounced fading issue which was possibly exacerbated by the stainless lines. By alleviated I don't mean cured, but greatly reduced (by about 90%.)

    -the EBC brake still out-performs the "improved" stocker in both braking performance (stopping distance) lever effort and it's completely fade-free.

    Stock brake, drilled:

    [​IMG]


    EBC Rotor (stock caliper though:)

    [​IMG]
     
    bigfitz52, Oct 21, 2010
    #4

Share This Page