Questions about drilled and slotted rotors
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Questions about drilled and slotted rotors in Past Cadillac Vehicle Discussion; I need to replace the brakes on my 2K Eldo I saw some drilled and slotted kits @ rock auto ...
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    ELDO GUY's Avatar
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    I need to replace the brakes on my 2K Eldo I saw some drilled and slotted kits @ rock auto . Powerstop k1526. My questions are . Is it worth the extra money or am I wasting my money ? Will this cause excessive brake pad wear ? And they say you will feel some virbration at times with agressive breaking , that I might not like much . The regular kits seem like they would be good to they all feature ceramic pads . Did anybody use either of these kits . TX in advance for you input.

    It could be drilled and slotted rotors in general not specifically this kit. Tx again

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    Submariner409's Avatar
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    Re: Questions about drilled and slotted rotors

    I did not use drilled and slotted rotors due to the decreased braking surface on the (relatively small) rotors. I used EBC slotted Ultimax rotors and their new Redstuff pads. Significantly improved braking, glass-smooth after 200 miles of dedicated break-in. Not cheap. www.placeforbrakes.com

    Slotted rotors, in and of themselves, do not cause pad wear and do not cause brake vibration, either during normal or aggressive stops. If you are a pretty normal daily driver and commuter the ONLY thing slotted/drilled rotors will do for you is bling. One school of thought says that drilled rotors tend to crack at the holes.

    For information, get into www.ebcbrakes.com, Automotive, USA, and read all the links - a day's work in itself, but the info is invaluable.

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    Re: Questions about drilled and slotted rotors

    As said above by Sub if you're a normal day to day driver all it will do is look cool, you won't notice much of a difference if at all...I definitely suggest staying away from drilled rotors as I have seen them crack, slotted is just fine though. I had slotted R1 Concepts (site vendor) rotors on my old CTS, they were a good price and stopped wonderfully paired with a set of Hawk pads...

    All in all, if you want some bling get the slotted ones, if you are looking for better performance you won't get it, just get normal blanks...
    Past Cadillac's

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    Re: Questions about drilled and slotted rotors

    Is it worth the extra money or am I wasting my money -
    unless you drive VERY aggressively - or tow a heavy trailer -
    you would be wasting your money -

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    Re: Questions about drilled and slotted rotors

    This is not an apples and apples comparison, just my experience. After suffering a catastrophic brake failure in my 2005 Excursion I replaced all four rotors with drilled and slotted replacements and Hawk pads. With or without my trailer the braking was improved substantially. And since I detail the wheels regularly I am always checking the rotor surface for cracking that "everyone" says is going to happen. On a four ton heavy vehicle that is rated as a 3/4 ton truck there has never been an issue with the drilled and slotted cryogenically frozen rotors.

    So would I do the same with my relatively light Eldo? Based on my experience, yes.

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    MoistCabbage's Avatar
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    The improvement you felt in braking POWER was from the pads, not the rotors. Slots and dimples do not increase braking power, in fact, they lower it. Every hole and slot decreases the surface area.

    If you're looking for improved stopping power for your "normally" driven daily driver, a solid rotor and performance pads would be the best choice.

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    X-Hibition is offline Cadillac Owners Member
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    Re: Questions about drilled and slotted rotors

    Or another opinion

    http://www.brakeandfrontend.com/Arti...w_or_slow.aspx

    Who drives normally?

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    Re: Questions about drilled and slotted rotors

    Quote Originally Posted by X-Hibition View Post
    Or another opinion

    http://www.brakeandfrontend.com/Arti...w_or_slow.aspx

    Who drives normally?
    -------------------------
    Who drives normally?
    I do - and probably 50+% of the general population does -

    I can not think of one single time in the last 30+ years
    that I needed - or even wished I had "better" brakes on any car I drove -

    YES - I used to drive in rush-hour traffic -

    and YES - I towed a 2000# bass boat - single axle - without brakes -
    in fact - out of the 176,000 miles I put on my 95 deville -
    I bet 75,000 miles were towing the boat -

    the original brakes lasted 65,000 -

    I replaced with Bendix MKD624 and MKD508 - both semi-metallic -

    replaced the original rotors and another set of Bendix pads at 125,000 miles -

    ---------------------

    MY opinion is that VERY FEW drivers would notice ANY benefit -
    switching to drilled/slotted rotors - and pretty red disc pads -

    the one exception would be -
    IF the original brakes were simply inadequate for the vehicle -

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    Re: Questions about drilled and slotted rotors

    Thanks for all the discussion today on this topic. At the end of the day I decided to order the Power Stop 4 wheel Kit with ceramic pads and standard rotors P/N KOE 1543 for $142.99 @ Rock auto. The reviews on the various forums were very favorable . I added 2 sets of the Raybestos Pad retracors to see if these things have any value. For about ten bucks you cant go wrong . I was surprised to see that the best price for this product was not on Amazon . I really wanted the other rotors for the cool/ performance factor but it just didnt make sense in the long run even thought it was just over a $100 more.

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    Re: Questions about drilled and slotted rotors

    Remember - Your rear caliper pistons screw back into the caliper - do NOT attempt to compress the pistons with a C-clamp.

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    Re: Questions about drilled and slotted rotors

    See this thread...it goes a bit deeper than just brake replacement so you are covered.

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    Thanks for the additional info , I hate the rears because of the parking brake cable and screwing in the piston , I didn't see it in the article but I always like to bleed the brake fluid real good to remove any water in the system because brake fluid absorbs water over time

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    Re: Questions about drilled and slotted rotors

    I have drilled and slotted rotors and ceramic brake pads all from powerstop on my car and they can be quite noisy when cold and when they get wet they vibrate and they squeak every once in a while when I'm braking. the rotors and brakes all look new after 12K with minimal wear

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    Re: Questions about drilled and slotted rotors

    Ya, I read that in the window about breaking in, they mentioned that under hard breaking you might hear some noise or experience some vibriation . I wonder what thats about.. . I don't know if I would have liked that part of the experience, but the additional coating on the rotors is a plus .

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    Re: Questions about drilled and slotted rotors

    One thing I don't like about the AcDelco rotors, RUST!
    Man are made form the worst iron ever, the rust shows up everywhere the pads are not rubbing on, sometimes it starts touching the dust shields and I have to take the hammer and knock the rust out (I am talking a pound each time).
    I had once Raybestos rotors on the rear and I can say were exactly the same as AcDelco (rust wise).

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