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whats the difference between slotted rotors or oe blank?

Discussion in 'Civic and del Sol - EG and EK' started by StupidSlowEG, Mar 26, 2008.

  1. StupidSlowEG

    StupidSlowEG n00b

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  2. formby

    formby learning in progress

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    blanks are better

    you keep the little surface area you have

    get good pads lines and fluid and youll out brake your last oe set up by a substantial amount
     
  3. nootrac22

    nootrac22 Well-Known Member VIP

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    I was told that slotted rotors were developed for venting of gasses with older style brake pad, and are no longer nesacery.
     
  4. TurboMirage

    TurboMirage YEEAAAHHH VIP

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    slotted rotors prevent glazing by shaving the pad surface...

    brembo OE blanks are my choice.
     
  5. civicious

    civicious FüK-VTEC VIP

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  6. awptickes

    awptickes unimpressed by you VIP

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    Get blanks and some EBC Brake pads, figure out which suit your purpose best. You probably need Green, unless you're doing ONLY track. I had some GreenStuff pads, and they rocked.
     
  7. eg6sir

    eg6sir Supa Mod Moderator VIP

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    Hawk HPS FTW!!
     
  8. StupidSlowEG

    StupidSlowEG n00b

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  9. LS_VTEC

    LS_VTEC you get the BRAKE

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    Your not serious, are you?
     
  10. LS_VTEC

    LS_VTEC you get the BRAKE

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    Cross drilled/slotted rotors dissipate heat better.
     
  11. nootrac22

    nootrac22 Well-Known Member VIP

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    seems we are both right to a certain degree.



    Disc brake - Wikipedia, the free encyclopedia
     
  12. LS_VTEC

    LS_VTEC you get the BRAKE

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    Venting of what gas'? I didn't know disc brakes vented gas' or vapor for that matter. Wasn't on the ASE either. :) I am sure you have heard the saying "don't believe everything you hear". ASE tests are coming up next month, you should take a stab at it and see how well you do. :mellow:
     
  13. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    Venting of asbestos gasses :)

    pads used to be made with asbestos. that's what drilled rotors were developed for. i read in the same article (i'm trying to locate it) that that's what slotted are for to. tho it makes sense it would remove a glazing off the surface of the pad, if it were to develop.

    porsche only runs them for the look, as common perception IS it enhances heat dissapation, when it truely doesnt, the article also stated.

    i'll post the link if i find it....
     
  14. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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  15. LS_VTEC

    LS_VTEC you get the BRAKE

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    Asbestos has not been used in production of any automotive replacement or OEM part for over 25 years now. The phaseout of asbestos started in 1991. Asbestos has been completely phased out for over 10 years now.

    As for glaze, it is simply caused by heat. Failure to dissipate heat will cause a rotor and/or pad surface/lining to glaze.

    As far as a cross drilled/slotted rotor preventing glaze, it would depend on how much heat is developed. Heat is the number one killer of brake system components.
     
  16. LS_VTEC

    LS_VTEC you get the BRAKE

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    What I am simply saying, is that cross drilled/slotted rotor's do not vent asbestos gas', they help dissipate heat. :) Although, a cross-drilled rotor will not have as much breaking power due to the amount of contact surface of the pad to the rotor. This is slightly less than a solid rotor, while breaking under load. So it actually benefits you to have a cross drilled rotor. As far as brake pads go, there are many different materials used in todays pads. It all depends on what your looking for in your braking.

    Fully Metallic linings are good for racing because they have great fade resistance but cause excessive wear on rotor/drum surfaces and wear out much faster.

    Semimetallic linings are pretty much the opposite of fully metallic but offer good frictional characteristics, so only a moderate amount of pressure is needed. Good for most of todays vehicles.
     
  17. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    i dont know enough off hand to keep up the good argument, but i'm gonna find that link eventually and it's the end all to this discussion. i'm telling you. you've got some concepts of it a little off.

    i know that asbestos was only used in old brake pads. i even said that.

    hopefully i find that link....
     
  18. LS_VTEC

    LS_VTEC you get the BRAKE

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    Not to be a dick whatsoever, but I know brakes very well. It is one of my strongest points of work. Engines, brakes, steering + suspension and engine diagnostics/performance. Don't get me wrong, I can do just about anything, but those are what I am best at. Theories will be theories, but facts are facts. :)
     
  19. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    oh it's all factual and demonstrated...

    might take me a while to locate it, but i will post back

    it's just a friendly argumentitive discussion. your not a dick for sayin. tis cool :)

    edit: if i knew off hand good info like you did, that would be great, but i only remember reading about it, and vauge details that left me at 'i'm using blanks on my car now' in my current project.
     
    Last edited: Mar 28, 2008
  20. LS_VTEC

    LS_VTEC you get the BRAKE

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    Have you ever seen a disc brake system that was altered under factory spec? Or better yet, this one is pretty common... bending/cutting a backing plate from the front disc assembly? An Acura integra came into my shop with a complaint from the customer which was this; "I have a low pedal and the brakes arent working and there is smoke coming from underneath my hood and wheel well". The car had 17" wheels on it, NO pad surface left, the rotors were warped beyond belief and way under the manufacturer's spec. The shims fell right off when we removed the seized caliper. The backing plate was cut off in two areas, so he could fit his wheels on the car (so he states). The car comes with ventilated rotors. He had cheap Napa solid rotors on it. He drove it anyway, and then when he was due for brakes he did not get them done. The heat that built up started to boil the brake fluid right in the line and inside the caliper. The steam was coming from his master cylinder resevoir. When the brake fluid boils, it will inturn create a vapor. This is why he had no pedal. It takes A LOT of heat to boil DOT3/4. This kid ended up with a $1400 bill. Guess he learned his lesson.
     
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