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[SX-T] : Looking for brakes
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Thread: Looking for brakes

  1. #1
    Shuttle Driver
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    Looking to but f r rotors and pads for my 2015 Optima sx turbo. What do you recomend? Slotted, cross drilled, both...?
    Preferably Canadian vendor. Thanks.

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  3. #2
    Your K5 Optima Vendor K5 Optima Store's Avatar
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    Please send me an email with what you are looking for, and I would be happy to quote you.





  4. #3
    OptimaForums Veteran
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    I don't actually recommend slotted, drilled or any of that... I had a set and it was noisier than OEM brakes and ate through the brakes...
    For pads, I personally really like Hawk HPS since they're really great performers both cold and hot with long life to them. I hated green stuff as they barely lasted....
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  6. #4
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    Today's pad compounds don't outgas light the old ones did, and really don't need slotting or cross-drilling. It's looks only really. Also, for stopping power, you want to maximize the surface area of the rotor, so cutting away slots or holes reduces the contact area to the pad.

  7. #5
    Riding Lawn Mower
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    The reason the rotors are slotted and cross drilled is not only to aid in evacuating the brake dust created when braking, but to also help cool the rotor down, as there is more surface area with the slots and holes, and therefore cools faster, mitigating brake fade. There is a purpose, and it's not just for looks.

    Now, that being said, most daily street driving will not work the brakes hard enough to fade them, and therefore, you probably won't see much difference. The difference comes readily apparent when there is a lot of frequent and/or hard braking - like autocross or road racing technical courses. So for a daily street car, it would come down to preference. I myself prefer the slotted and cross drilled rotors because I drive hard, and in the case of these cars, it's a lot of weight to slow down, and I prefer to error on the side of caution.

    Better to have and not need, than to need and not have...!!
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  8. #6
    Learner's Permit Dubbayoo's Avatar
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    Formula 1 cars are drilled only, and mostly for weight savings. They're on carbon fiber brakes and going from 300kph to 80kph in 60 feet. That's gotta be brutal on your neck

  9. #7
    Riding Lawn Mower
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    Hence neck restraints!!
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  10. #8
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    Quote Originally Posted by WS6_Keith View Post
    Today's pad compounds don't outgas light the old ones did, and really don't need slotting or cross-drilling. It's looks only really. Also, for stopping power, you want to maximize the surface area of the rotor, so cutting away slots or holes reduces the contact area to the pad.
    This is completely wrong. It reduces dusting and aids in cooling, which is extremely important if you are driving hard, doing AutoX, racing (quarter-mile, etc.), or just want your brakes to actually perform better and with less dust issues.
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  12. #9
    Riding Lawn Mower
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    Exactly. Energy cannot just disappear. it has to go somewhere. The rotational energy is transferred to thermal energy through friction. The only way to transfer the thermal energy is dispensation of the heat. The faster and more efficiently you can cool the brakes, the better they will work.
    [IMG] [/IMG]

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  14. #10
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    In non fantasy world driving slotted or drilled rotors wear down brake pads much quicker. These products are for those who live in a fantasy world only and or who have nothing better to do than change out pads and or rotors much more frequently.
    In fact drilled or slotted rotors stop your vehicle more slowly as well. The minimal heat benefits wouldn't be seen until 1000 degrees and higher. These temps are never seen in street driving conditions.
    Quote Originally Posted by K5Turbo View Post
    The reason the rotors are slotted and cross drilled is not only to aid in evacuating the brake dust created when braking, but to also help cool the rotor down, as there is more surface area with the slots and holes, and therefore cools faster, mitigating brake fade. There is a purpose, and it's not just for looks.

    Now, that being said, most daily street driving will not work the brakes hard enough to fade them, and therefore, you probably won't see much difference. The difference comes readily apparent when there is a lot of frequent and/or hard braking - like autocross or road racing technical courses. So for a daily street car, it would come down to preference. I myself prefer the slotted and cross drilled rotors because I drive hard, and in the case of these cars, it's a lot of weight to slow down, and I prefer to error on the side of caution.

    Better to have and not need, than to need and not have...!!

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