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2004-2007 Cadillac CTS-V General Discussion Discussion, Brake Rotor question in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by 1yakini Ha... I never caught that. Thanks for pointing it out, explains why brake dust has increased ...
  1. #46
    69stangscj's Avatar
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    Re: Brake Rotor question

    Quote Originally Posted by 1yakini View Post
    Ha... I never caught that. Thanks for pointing it out, explains why brake dust has increased quite a bit since they were put on. (slaps head)
    It doesn’t matter what way your rotors are on, unless the cooling fins in the center of the rotor are angled then they may over heat if on backwards. If they are straight like most are, is doesn’t matter, it’s just for looks.

  2. #47
    InfrareV is offline Cadillac Owners Member
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    Re: Brake Rotor question

    Quote Originally Posted by 69stangscj View Post
    It doesn’t matter what way your rotors are on, unless the cooling fins in the center of the rotor are angled then they may over heat if on backwards. If they are straight like most are, is doesn’t matter, it’s just for looks.
    qft

    The direction of the slots can/may be independent of the vanes. The vanes should be angled with the rotation.

  3. #48
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    Re: Brake Rotor question

    Quote Originally Posted by InfrareV View Post
    qft

    The direction of the slots can/may be independent of the vanes. The vanes should be angled with the rotation.
    exactly

  4. #49
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  5. #50
    InfrareV is offline Cadillac Owners Member
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    Re: Brake Rotor question

    Quote Originally Posted by FuzzyLogic View Post


    Slots always need to angle toward the direction of rotation. Vanes, if directional, need to be angled backwards.

    Otherwise, the rotor will try to pump vital cooling air against its own rotation, and overheat.
    Agree regarding the vanes, but I've seen rotors where the slots are aligned with the vanes and it's the vanes that are critical. I've also seen slotted rotors that don't come in a left and right.

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  7. #52
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    Re: Brake Rotor question

    Cooling vanes are directional, rotor slots are not. Different manufacturers choose different directions for the slots, that, or all the sets I've purchased and installed were bad sets.

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  9. #54
    InfrareV is offline Cadillac Owners Member
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    Re: Brake Rotor question

    I suppose you won't be buying an Aston Martin? I've seen Ferrari's like this and other premium cars at auto show's.

    Also per RacingBrake:
    Quote Originally Posted by RacingBrake
    Understand OE (Honda) or stock (aftermarket) rotors are all non-directional meaning with straight vanes, but RB upgrades and makes the rotors to directional (curved) vanes even for one piece rotor. Don?t know if you purchased one piece or two-piece rotors. However we all know the 'vane' direction is what important than 'slot' direction which is more cosmetic than any significance of performance and every mfgr / user are entitled to have their own opinion.
    As we stated in our previous answer if the rotors are non-directional or ?straight? vane you may install whatever you feel right but since RB rotors have curved vanes so you must install them as recommended.
    EDIT:
    Even better, would you buy a V2?

  10. #55
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    Re: Brake Rotor question

    Quote Originally Posted by FuzzyLogic View Post
    Wrong. If you have documentation showing that a vendor thinks otherwise, please post it up so that we can never buy from them.
    Incorrect. Even the first Google hit on rotor slots, from which it appears you copied and pasted the pictures from your detailed description in post #49, states the surface slots are non directional. Busy with my kids today, so you'll have to do your own vendor research.

  11. #56
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    Quote Originally Posted by InfrareV View Post
    I suppose you won't be buying an Aston Martin? I've seen Ferrari's like this and other premium cars at auto show's.

    Also per RacingBrake:

    EDIT:
    Even better, would you buy a V2?
    V2 rotors don't have slots.

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