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Thread: cross drilled rotors

  1. #1
    Join Date
    Apr 2004
    Location
    trinidad, in the caribbean
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    188

    Default cross drilled rotors

    hi guys
    maybe its a bit late to ask this but i just bought a set of cross drilled rotors and s/s brake lines for my car, anyone here has these on their car? if you do, how are they working so far? what about pad life? i chose the c/drilled ones over the c/drilled and slotted ones cause i was told the slotted ones eat the life out of your pads.
    any comments?
    thanx

  2. #2
    Join Date
    Feb 2004
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    4,894

    Default

    Cross drilled are great... great stopping power, great wearing, easy on pads... however it is noisy... whines sounds like plane landed and applied brake.... in much smaller way.

    Slotted is also great... not as great as slotted in stopping power, but much quieter. It will groan only under hard braking.

  3. #3
    Join Date
    Jan 2004
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    Elm Grove Farm, NC
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    Default

    cross drilled rotors are a waste of $$$ on a street car. <period



    Bret.

  4. #4
    Join Date
    Mar 2006
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    811

    Default

    they look cool, give you bragging rights, useless on a street car. same goes for the ss brake hoses.

  5. #5
    Join Date
    Dec 2003
    Posts
    1,640

    Default

    Here's why you don't buy cross drilled.

    Have run reading....

    http://www.bmwpugetsound.com/vbb/showthread.php?t=30782
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  6. #6
    Join Date
    Jan 2004
    Location
    SCHUYLKILL COUNTY, PA.
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    571

    Default i have drilled on the 325e front & all 4 on my e34............

    i purchased zimmerman which are casted with the slots, they claim this keeps them from cracking. i have them on my 325e for 4 years & my e34 540i/a for 2 years & never had an issue. the little growl noise does not bother me at all.
    i have over 30,000mi. on them on the 325e & the pads are showing very little were.
    tim s.

  7. #7
    Join Date
    May 2004
    Location
    Maryland
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    Default

    check for rotor cracks and let us know what you find.
    1994 540ia|Oxford Green Metallic|Lemforder|KYB in H&R|18" OE Staggered M-Parallel with Pirelli P-Zero

  8. #8
    Join Date
    Apr 2004
    Location
    trinidad, in the caribbean
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    188

    Default

    Quote Originally Posted by Rigmaster
    cross drilled rotors are a waste of $$$ on a street car. <period



    Bret.
    ok with this being said, my cousin has 3 S500 benz and a S600 benz, i noticed they all have cross drilled rotors, and they came that way, he didnt put them on, i wonder mercedes would put these on their cars if they knew it would crack?

  9. #9
    Join Date
    Jan 2004
    Location
    SCHUYLKILL COUNTY, PA.
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    Default i check at each tire rotation & have not seen a crack yet.

    tim s.

  10. #10
    Join Date
    Jun 2005
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    1,706

    Default

    My car had zimmermans and metal masters on it when I bought it. They are noisy and the growling does bother me. I am just waiting for them to wear out so I can justify changing them.

    .
    Dinan chip, Bilstein sports w H&R, RD sways, RD strut brace, 750 bushings, Zimmermans/MetalMasters, O.E. M Pars, Eisenmann muffler

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