Slotted rotors - Suspension and Brake Forum

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Slotted rotors
Sunday, July 02, 2006 4:15 PM
Im trying to decide between power slot and brembo. Anyone have any opinions? Also does the power slot have a protective coating on them?

Re: Slotted rotors
Sunday, July 02, 2006 4:54 PM
Brembo would be my choice, they're known for excellent quality.



Re: Slotted rotors
Sunday, July 02, 2006 8:36 PM
the protective coating burns off real quick on both brands.

I perfer Power slot rotors, They seem to last much longer.



Re: Slotted rotors
Sunday, July 02, 2006 8:49 PM
Well, since it's 50/50,

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Re: Slotted rotors
Monday, July 03, 2006 4:08 PM
I'm running on powerslot sloted rotors and I must say, they are great. I have hawk brake pads on them and the two seem to be a great combination. Great stopping power. I'll post pics when the weather is better, only had em on for about a week.



Re: Slotted rotors
Thursday, July 06, 2006 11:11 AM
I've done a lot of searches and i've read a lot that slotted and drilled rotors dont really make much of a difference and are mostly for looks. Has anyone used the stainless steel brake lines and how much of an improvement do those offer? I might just purchase these and a set of brembo blanks.
Re: Slotted rotors
Friday, July 07, 2006 5:49 AM
I've had a set of Brembo slotted brakes for about a year now and am very satisfied. None of the coating that they have will last for very long, Powerstop or Brembo, atleast on the lip. The part still in contact with the pads stays in great shape and still looks great to date.

Matt: True slotted and drilled rotors don't do much more except allow the rotors to cool faster, which can reduce rotor fatigue and "warping per say" tendencies. It's all about the pads that you use. I've used a set of Akebono Pro ACT ceramics and they increased stopping power greatly in combo with the Brembos. Plus they do look pretty sick lol!

I'll post a pic later when I get off of work of how they look after a year of care and use.


ShiftyCav wrote:thats probably the dumbest thing i have ever heard. you should take that serpentine belt and wrap it around your neck.

Re: Slotted rotors
Friday, July 07, 2006 5:56 AM
Lets see some pict of each please!







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Re: Slotted rotors
Monday, July 10, 2006 11:18 AM
I have had a set of brembos (slotted) on my car for over 20000 miles and even if they didn't help in stopping they have been a huge improvement over the cheap stock or autozone rotors that I used to put on that I would warp after only a couple thousand miles. By far the best rotors I have ever had
Re: Slotted rotors
Monday, July 10, 2006 5:22 PM
I went with the slotted brembos....60 dollars more than blanks but worth it in my opinion. Sounds like I made a good choice. Thanks for all the feed back.
Re: Slotted rotors
Monday, July 10, 2006 11:51 PM
Jace Evo2 wrote:I've had a set of Brembo slotted brakes for about a year now and am very satisfied. None of the coating that they have will last for very long, Powerstop or Brembo, atleast on the lip. The part still in contact with the pads stays in great shape and still looks great to date.

Matt: True slotted and drilled rotors don't do much more except allow the rotors to cool faster, which can reduce rotor fatigue and "warping per say" tendencies. It's all about the pads that you use. I've used a set of Akebono Pro ACT ceramics and they increased stopping power greatly in combo with the Brembos. Plus they do look pretty sick lol!

I'll post a pic later when I get off of work of how they look after a year of care and use.



FROM THE STICKY !!!! wrote:#1 Slotted or Crossdrilled rotors.

These rotors both accomplish the same basic things. Contrary to popular belief, slots and drill holes DO NOT help cool the rotor. They simply allow the brakes to operate properly at a much higher temperature. When pads get hot, the resins and binders that hold the friction material together with do 2 things, either melt or "gas". If they melt, this will act as a lubricant and the brakes won't work, if they gas, the gas will tend to float the pad off the surface of the rotor, so all your pedal pressure goes into compressing this gas rather than forcing the pads against the rotor. Slotted and Crossdrilled rotors allow an escape route for these things. Crossdrilled rotors are mainly beneficial for high end racing where there is a lot of concern for the reduction of unsprung weight. Aside from that and the cosmetic aspect (face it...they look good) there is no reason to go with crossdrilled rotors. Slotted rotor maintain about 95% of the friction surface that the original rotor had while crossdrilling removes much more material leaving only about 70-80% of the original friction surface. A crossdrilled rotor also does not have holes passing evenly over the entire pad as do most slotted rotors, leading to uneven pad and rotor wear because the pad is contacting the rotor for a full 360 degrees at certain points and much less than that at others. Crossdrilled rotors generally wear out pads faster than slotted rotors as well. Another problem with crossdrilled rotors is that they sometimes develop stress cracks around the holes. When the drilling takes place, stress risers are formed because the "web" of the casting is disturbed. Slotted rotors do not have this problem....especially if the slots do not extend past the outer edge of the friction surface. Slotted rotors are better for the street.....Crossdrilled for the track if you are changing rotors after every race and they are not repeatedly heat cycled, which will most likely promote cracking.


and I noticed a difference with mine when going hard on them for a good amount of time over my regular rotors .



My Cav
I give up...
i'm buying a VW those people love trees, so they should love eachother too... "Andy"

Re: Slotted rotors
Tuesday, July 11, 2006 5:28 PM
Just received my slotted brembos today, and I have one more question for you guys. Do your slots on the brembos not go all the way to the outside, but stop just a little short? I was surprised by this, I thought they would go all the way to the edge so that the gas/brake dust would clear out of the side of the rotor....
Re: Slotted rotors
Tuesday, July 11, 2006 6:48 PM
the slots dont have to go to the end of the rotor because they trap the gasses inbetween the pad and the slot, then once the slot gets past the pad, the gasses are expelled in the air. brakedust and such will just stick to your wheels a bit more noticably i believe.



Re: Slotted rotors
Tuesday, July 11, 2006 10:28 PM


or there are these...

BAER Decela... I have the Hawk pads with mine. Stop like a dream over stock.





Re: Slotted rotors
Wednesday, July 12, 2006 2:50 AM
Chuckie Wilson wrote:I'm running on powerslot slot rotors and I must say, they are great. I have hawk brake pads on them and the two seem to be a great combination. Great stopping power.


I second that, add some Rusell Stainless lines and High Performance brake fluid and you got my setup, stops 100% better now, no pedal vibration on hard stops, and the car dont shake from high speed (65-80) braking. Ive dodged I dont know how many deer with this brake setup, and the stock brakes didnt help me dodge them before, jsut mad eit interesting



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