Rotor Thickness | FerrariChat

Rotor Thickness

Discussion in '360/430' started by English Rebel, Dec 27, 2013.

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  1. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
    Piedmont Area of NC
    Full Name:
    Alan
    My front and rear rotors measure 1.125" thick with no deep grooves. Is it safe to say that they can be resurfaced?
    Thanks
    Alan
     
  2. blkdiablo33

    blkdiablo33 F1 Rookie

    Jul 12, 2004
    4,448
    whats the minum of the rotors?
     
  3. rbellezza

    rbellezza F1 Rookie

    Jun 18, 2008
    2,793
    Henderson, NV
    Full Name:
    Roberto Bellezza
    I was told some time ago it is not a good idea to re-surface drilled rotors, not sure why ...
     
  4. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
    Piedmont Area of NC
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    Alan
    That's what I was asking (well implying).
    Alan

    I've no idea why either.
    Alan
     
  5. Chiaroman

    Chiaroman Formula 3
    Rossa Subscribed

    Apr 21, 2004
    1,687
    New Jersey
    I had my rotors turned at a Ferrari Dealer.

    They did not do it in house...Simply farmed it out.

    Good luck.

    P. S.

    Maybe while everything is apart you can have the brakes striped and repainted???

    Check the brake pads also...The list on these cars never ends?!?!?! LOL!!!
     
  6. hardtop

    hardtop F1 World Champ

    Jan 31, 2002
    11,294
    Colorado
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    Dave
    Rotors that have been turned will be more prone to overheating and warping. On the advice of people smarter than me, I've just replaced pads until the rotors were shot. They will bed into existing grooves.

    Dave
     
  7. blkdiablo33

    blkdiablo33 F1 Rookie

    Jul 12, 2004
    4,448
    Inside the rotor there's a minum thickness can not go below that but they can be resurfaced
     
  8. mike01606

    mike01606 Formula Junior

    Feb 21, 2012
    794
    Cheshire UK
    Full Name:
    Mike M
    In Europe these are popular particularly for corroded discs or where run out is causing issues. I'm not sure if there is anything similar in the US.

    Pro-Cut : On-car brake lathes, quickly resurface the brake disks

    The minimum disc thickness is in the WSM also.

    I bought new Brembo rotors for the front of mine for £65 (approximately $100) each. It generally isn't cost effective to do anything but replace them here. The only difference was the centres needed painting in zinc primer.

    Edit. US website....

    http://www.procutusa.com/index.aspx
     
  9. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
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    Alan
    Okay so what is the minimum thickness?
    Alan
     
  10. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,159
    Clarksville, Tennessee
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    Terry H Phillips
    #10 tazandjan, Dec 28, 2013
    Last edited by a moderator: Sep 7, 2017
    Alan- You can download a 360 Spider WSM at ferraridatabase.com. Wear limit is 26 mm or 1.024", so you can turn your rotors if they need it. Here are guidelines on whether your rotors are useable.
    Image Unavailable, Please Login
     
  11. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
    Piedmont Area of NC
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    Alan
    Thanks Terry. So if the wear limit is 1.024 then it looks as if I have about 0.10" (0.05" each side) of metal that can be removed (as long as there are no cracks per the WSM).
    Alan
     
  12. Need4Spd

    Need4Spd F1 Veteran

    Feb 24, 2007
    6,678
    Silicon Valley
    #12 Need4Spd, Dec 31, 2013
    Last edited by a moderator: Sep 7, 2017
    I tried that, but ended up with incurable brake squeal. The fixed caliper design of the Brembos (as contrasted with the floating caliper design of many cars, such as BMWs) aren't very forgiving in terms of brake noise. The only way to achieve quiet is to make sure the rotors are true (either have them resurfaced or get new ones). Last time around, I got these StopTech rotors.
    Image Unavailable, Please Login
     
  13. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
    Piedmont Area of NC
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    Alan
    I seems as if you are being contradictory -- rotors need turning to make them run true but when you turned them you got incurable brake squeal. I'm confused.
    Alan
     
  14. ar4me

    ar4me F1 Rookie
    Owner

    Apr 4, 2010
    3,114
    Southern California
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    Jes
    Re-read his post. He said that if he didn't turn the rotors but let pads bed into existing wear pattern on rotors he got squeal.
     
  15. Need4Spd

    Need4Spd F1 Veteran

    Feb 24, 2007
    6,678
    Silicon Valley
    Correct.
     
  16. hardtop

    hardtop F1 World Champ

    Jan 31, 2002
    11,294
    Colorado
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    Dave
    I never had that problem.

    Dave
     
  17. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
    2,158
    Piedmont Area of NC
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    Alan
    Ah now I see -- he was referring to another post -- sorry my bad.
    Alan
     

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