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post #1 of 38 (permalink) Old 3 Weeks Ago Thread Starter
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Rotors

I need new rotors on my car, and was wondering what's the pros and cons of Slotted vs Non-slotted?
My husband wants to put centric non slotted on the car.


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post #2 of 38 (permalink) Old 3 Weeks Ago
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I need new rotors on my car, and was wondering what's the pros and cons of Slotted vs Non-slotted?
My husband wants to put centric non slotted on the car.
Centric non-slotted would be a great choice IMO.

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Centric non-slotted would be a great choice IMO.
Thank you, i will let him know he made a good choice

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Centric non-slotted would be a great choice IMO.
I agree.I have always used non-slotted.


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I agree.I have always used non-slotted.
Thank you for commenting 🙂
I’m still learning the in’s and out’s of my car.

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yep, that's what I would go with also

If you look on Rock Auto you should see a few different rotors available. I'd go with the nicer coated ones, non-slotted from Centric or Raybestos. I think they are about $30 extra; to me it is well worth it because they don't rust up so bad, stay looking nicer longer.

Slotted is mostly a gimick -- might be an improvement in some track situations with the right pads but doesn't do much on the street other than wear pads faster and create the potential for noise.

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post #7 of 38 (permalink) Old 3 Weeks Ago
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Just a question. Why do you think you need new rotors?

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Just a question. Why do you think you need new rotors?
Steering wheel is shimming when I apply brakes to stop..... was told it was cause the rotors are warped

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yep, that's what I would go with also

If you look on Rock Auto you should see a few different rotors available. I'd go with the nicer coated ones, non-slotted from Centric or Raybestos. I think they are about $30 extra; to me it is well worth it because they don't rust up so bad, stay looking nicer longer.



Slotted is mostly a gimick -- might be an improvement in some track situations with the right pads but doesn't do much on the street other than wear pads faster and create the potential for noise.
I was looking at the black coated ones, but could not find any to fit the rear, the ones I did find were out of stock.

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Originally Posted by LadyGT View Post
Steering wheel is shimming when I apply brakes to stop..... was told it was cause the rotors are warped
Please read item 3. in the list, from the link below ...

6 Brake Rotor Myths Debunked


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Quote:
Originally Posted by LadyGT View Post
Steering wheel is shimming when I apply brakes to stop..... was told it was cause the rotors are warped
Please read item 3. in the list, from the link below ...

6 Brake Rotor Myths Debunked

Interesting read.... thank you for posting

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post #12 of 38 (permalink) Old 3 Weeks Ago
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From what I have read, apparently slotted/drilled rotors are prone to cracking. Also readings told me that airplanes don't use D&S rotors because they really don't want them cracking! I changed pads and rotors recently and got new ones from Rock Auto that were coated - as stated to avoid rust. They are great quality so far - but don't buy the cheapest - steel quality is better in more $$ rotors apparently. And yes there are many thoughts on why brakes vibrate, and that reason is mostly due to incorrect bedding-in procedures and buildup. I am leary of that because after I put on new pads and rotors (I always replace both) and bed them in according to the Mfg, there is no vibration and are fine for 40-50K miles. After that, if they start vibrating, it's when go down a long hill with the brakes on which really heats them up and the vib's start and goes away once the rotors cool. This hill is a regular drive for me and there is no vibration until they get older so if bedding-in was the issue, I'd think the vib's would occur at an earlier mileage and if a buildup was the issue, I'd feel it with hot or cold brakes. But that is just my 2 cents based on my observations in my car not anything scientific. Good luck with the new rotors!
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post #13 of 38 (permalink) Old 3 Weeks Ago
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Slotted vs Smooth vs Drilled. The choice will not have any influence on a daily driver.

But I am interested in why the rotors are suspected and not one post mentions the pads. This rotor is on a Charger. High speed stop with discoloration and spotting. It was still serviceable when a run out inspection was done.

Garnet paper was used on the pads and the rotor to remove the gunk.

And its important to use garnet paper for cleaning rotors and pads and not aluminum oxide which will leave particles.

If you replace the rotors invest in new pads too.
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Quote:
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Steering wheel is shimming when I apply brakes to stop..... was told it was cause the rotors are warped
Sounds like they need trued or replaced. The reason I ask is because sometimes people change parts when its not necessary.

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Originally Posted by 07redstang View Post

Sounds like they need trued or replaced. The reason I ask is because sometimes people change parts when its not necessary.
Bought the car a year ago from a dealership and the pads were replaced then but not the rotors.... I agree that replacing parts for the sake of replacing them is not good


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