14 inch rotors | FerrariChat

14 inch rotors

Discussion in 'Technical Q&A' started by rprincipe, May 15, 2006.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. rprincipe

    rprincipe Rookie

    Joined:
    May 9, 2006
    Messages:
    5
    I have a 355 with what I am told is the Grand touris brake upgrade kit, I need to get replacement rotors and the only size sold for the upgrade is 13.1 ,I need 14.

    I am also told from who sold me the car they are the original brembo rotors with the Brembo calipers and original Pagid pads.

    Any help???
     
  2. Martin Meade

    Martin Meade Karting BANNED

    Joined:
    Oct 25, 2004
    Messages:
    229
    Location:
    B'ham, WA
    Full Name:
    Martin Meade
    If you can provide a part number form the rotor or a sample we can make them for you. Cost should be around 250-275 each.

    Hope we can help

    Martin
    Girodisc
     
  3. Mike C

    Mike C F1 Veteran Lifetime Rossa Owner

    Joined:
    Aug 3, 2002
    Messages:
    6,081
    Location:
    Southeast USA
    Full Name:
    Mike Charness
    I suggest you do follow up with the offer from Martin at Girodisc... their stuff is first rate, and they really know brakes!
     
  4. TopElement

    TopElement Formula 3

    Joined:
    May 14, 2005
    Messages:
    1,540
    Location:
    OC & Vegas
    Full Name:
    A Montoya
    Do you have pics of the brake system? How many bolts are on the rotor/hat?
    The replacements should be an off the shelf item, and probably not hard to find. Might want to change pads too while you're at it.
     
  5. Schumi76

    Schumi76 Formula Junior

    Joined:
    Feb 15, 2006
    Messages:
    329
    Location:
    NC
    Full Name:
    Marco
    Hello Martin,

    can you guys make the rotors for a 360 model ??? At this time i have the OEM rotors on my car.
     
  6. Martin Meade

    Martin Meade Karting BANNED

    Joined:
    Oct 25, 2004
    Messages:
    229
    Location:
    B'ham, WA
    Full Name:
    Martin Meade
    We have rotors for the 360/430, and 360 challenge.

    Check out ************ or search the archives here for photos and complimentary feedback from fellow f-chatters with them.

    360 rotors are currently $400 a piece for 2-piece full floaters. I have three car sets left in stock, when they are gone the price will have to bump to $425 each. We also stock Porterfield R4-S and Ferodo DS2500 pads for these cars as well. Motul and Castrol fluid as well.

    Thanks,

    Martin
     
  7. Bob@BremboRt

    Bob@BremboRt Rookie

    Joined:
    May 4, 2006
    Messages:
    2
    If you have a Brembo Disc or Rotor you can get the part number off the edge of the disc. It should be a 09.xxxx.xx number.

    Please let me know what you find.

    We have 2-piece drilled or slotted replacement disc assemblies for your stock Ferrari 360 calipers also. These come with the Brembo Floating Hardware and the McLaren 'anti-rattle' springs.

    Talk to your Brembo Ferrari supplier like MVP.

    Hope that helps.

    Bob@BremboRt
     
  8. RossoCorsaItaly

    RossoCorsaItaly F1 Rookie Rossa Subscribed

    Joined:
    Jun 9, 2004
    Messages:
    4,684
    Location:
    LA & OKC
    Full Name:
    Kevin
    If you have a part # give us a call like Bob suggested above and I'll see what I can do for you.
     
  9. stephens

    stephens F1 Rookie Lifetime Rossa

    Joined:
    Feb 13, 2004
    Messages:
    4,647
    Location:
    Australia
    Full Name:
    Stephen S
    How do the Girodisc rotors compare to the Brembo alternatives?
    The reason I ask is that I have previously replaced my Brembo rotors with a cheaper aftermarket alternative - DBA www.dba.com.au The end result was, even using their best quality product the rotor would last 1 or at best 2 track days, before they cracked so badly the car was dangerous to drive. Whilst I still don't use Brembo rotors, I am spending more than Brembo prices for V8 Supercar spec rotors which, even though are 3 times more expensive than the DBA's last 6 times as long.
     
  10. enjoythemusic

    enjoythemusic F1 World Champ

    Joined:
    Apr 20, 2002
    Messages:
    10,676
    Location:
    Worldwide
    Full Name:
    Steven
    Stephens,

    Agree that 'cheap' rotors seem to follow the 'you get what you pay for.' Chiming in here because i use uprated Brembo front system and Girodisc rear rotors with stock calipers. Both Brembo and Girodisc rotors are alu hat floating/vented with slotted face. Use the car for many track days and the rear Girodisc rotors are holding up the same as the Brembo fronts. Am using VERY aggressive rear pads (Ferodo DS3000, friction coefficient 0.62) versus the much less agressive Brembo FM1000 front pads (friction coefficient 0.45).

    Hope this helps. As i recall, you could take it a step further with cryo...
     
  11. TopElement

    TopElement Formula 3

    Joined:
    May 14, 2005
    Messages:
    1,540
    Location:
    OC & Vegas
    Full Name:
    A Montoya
    Sounds like that would make for some costly track days! Have you looked into getting AP rotors?
    They use very high quality metal, with the proper chemical composition for track abuse. They're also heat treated at the factory after all machining is done. Never had a problem with them, even after sustained hard use with little cooling, and aggresuve Ferodo pads.
     
  12. fatbillybob

    fatbillybob Two Time F1 World Champ Consultant Owner

    Joined:
    Aug 10, 2002
    Messages:
    29,071
    Location:
    socal
    I may be just a dumb ol billybob but in my simplistic understanding of brakes it is all about heat capacity. Heat kills. So....you don't need better rotors as most steel is just steel with nearly insignificant about of trace elements like carbon to alter wear properties. What you really need is better rotor cooling/bigger brake ducts.
     
  13. TopElement

    TopElement Formula 3

    Joined:
    May 14, 2005
    Messages:
    1,540
    Location:
    OC & Vegas
    Full Name:
    A Montoya
    Rotor metal composition and post treatment make a significant difference. Any rotor will have a thermal limit of course, but lower quality ones will fail with less abuse.
     
  14. fatbillybob

    fatbillybob Two Time F1 World Champ Consultant Owner

    Joined:
    Aug 10, 2002
    Messages:
    29,071
    Location:
    socal
    When I was back in physics friction was between two surfaces. Therefore, while chagine one surface could surely change grip dynamics i.e. pad choice...likewise a hard rotor = less grip. However, all rotor types respond well to decreasing thermal load via external cooling. Duct it baby.
     
  15. stephens

    stephens F1 Rookie Lifetime Rossa

    Joined:
    Feb 13, 2004
    Messages:
    4,647
    Location:
    Australia
    Full Name:
    Stephen S
    Yes, brakes were costing about $1K per day, the AP's are good though. It isn't reasonable to expect rotors to last long with a 1600kg+ with driver 550hp car on slicks, which is used once a fortnight on average at the track. I've used the AP's, but the Harrops are better for my application.
     
  16. stephens

    stephens F1 Rookie Lifetime Rossa

    Joined:
    Feb 13, 2004
    Messages:
    4,647
    Location:
    Australia
    Full Name:
    Stephen S
    You mean something like this ;)
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
    Last edited by a moderator: Sep 7, 2017
  17. stephens

    stephens F1 Rookie Lifetime Rossa

    Joined:
    Feb 13, 2004
    Messages:
    4,647
    Location:
    Australia
    Full Name:
    Stephen S
    My point wasn't to ask for a solution, I've already spent plenty of money finding an answer to my braking problems, rather to question the quality of cheap(er) aftermarket rotors.
     

Share This Page