👀 R.I.P. Slotted Rotors 🚘
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- Опубліковано 27 кві 2022
- Drilled and Slotted Rotors can cause extra rust and noise. When considering your brake rotor replacement, race rotors can end up being a headache. Daily drivers do not benefit long term usually, especially if you live in a high moisture and/or salty road environment.
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*_EASY Brake pad thickness measuring:_* ua-cam.com/users/shortskdczNZw9x8o
If you aren’t replacing your pads/rotors every 24 months you aren’t driving right. 😁
😂
I use my brakes quite aggressively and even I don’t have to do them that often 🤣
Brakes actually wear and last a long long time as long as nothing rusts or seizes up on the pads and calipers and rotors 😀🔧
24? Mine wear every 2 months, and rotors every 8 😂
There used to be vendors selling cheap cheap pads made out of grass clippings. Maybe you are using those?
They would literally chop up clippings and mix with glue, form into the shape of brake pads, and glue to the backing plates!! 👀
Iv had the same set of drilled and slotted rotors on my car for over 200,00 miles with out a single problem. Replaced the pads 3 times with high quality ceramic pads and nothing els.
The only time Iv had disk brakes make noise is with super cheap semi metallic pads. And that was with normal solid rotors.
I am glad they work good for you 😃
I was just thinking same thing….on second pair of carbon ceramic pads n not a single slight problem…. 🤨
yup 😃
Probably depends on where you are located in the world too, with the salt content in the air and humidity
I'm sure it's a lot worse in the salt belt than it is for me in the south. I've never had a problem with mine either
Best option is not always to replace them 💀 best option is cutting it and driving until they’re almost discard, then replacing.
i like to discard them from my shopping cart
I never replace them until I have no choice.
I believe it’s because the drilled hoses are not tapered like more expensive rotors I’ve seen- like porche/Mercedes’/ BMW
Could be taper for sure. Rust is everywhere in the rust belt. If the rotors are cheap non nickel rotors, everything just rots completely with or without taper 😀🔧
I think they help with stopping power, mine sound good after 6 months of use so far. I got the best pads from Advanced Auto too so I'm sure that helps.
Your brake feel stopping power generally comes from the brake pad compound. Slotted rotors usually help with dissipating heat generally. In the salt belt slotted rotor life is even worse than regular rotors. They rust like an iron sponge. Some people have good luck with them though, and I hope you do 😃🔧
Purple ZEP during car wash. Use to have that same issue
good tip 😃
Yes goes well on your subaru sedan .. I'm putting the same ones on my toyota sienna...
💀💀💀
Nice! 😀
😂
theses rotors last longer but yes they are noisy
Good tip 😃
I have a 94 Civic Si hatchback which I bought about 6 years ago from a guy that was into building Honda cars. Weirdly, it has non ABS discs in the front and ABS discs in the rear. I'm not sure why, as I'm not all-knowing when it comes to automobiles. Anyway, I had drilled and slotted rotors on there for a very short time. There was a noise that started not long after the switch to drilled and slotted rotors. It was a rattling noise that occured whenever going over small bumps, ridges, etc which would stop whenever the brakes were pressed. At the time I didn't realize it was brake pad rattle. It didn't do that with the original pads and rotors and no, they didn't have any special brackets or supplemental parts that would've prevented such noise. Anyway, after installing the drilled and slotted, the brakes were quiet for a while and then started rattling. I took off the drilled/slotted and replaced them with solid rotors and the noise was gone again. No rattling....for a while. Now they have started rattling again. Brake pad rattle. It's embarrassing when going over bumps and rough road. You can hear it quite well. Everything with the rotors and pads is fine but seems like each time, just a short while after replacing pads, the rattle comes back. Put new pads on and it's silent. For a little while. Weirdest crap ever. So I thought the rattle was from the drilled and slotted rotors but it wasn't. "Hondas" I guess. 😂
Brake pads in the brake caliper mounts needs a certain specification of clearance. If its too small the pads jam and wear out prematurely. If too large the rattle and make noise because they are too loose. Look up that spec and see where you are at. You will need a feeler gauge to measure. If the are too loose new brackets may be needed. Sometimes the looseness can be helped with crc brake pad quiet. It is basically glue for the brake pads to stick them to the brake caliper. Hopefully that helps. Let me know what you find 😀😀
Drilled rotors suck for track. The holes fill with brake dust and stop cooling and also can crack from hole to hole. Solid, slotted race rotors are superior.
Good tip! Agree 😀
All you need to do is use a wire brush to clean the rust out and then use the brakes to polish the surface back up. Rotors dont need to be machined unless they are warped
True
It’s either I buy the best rotors brembo or the cheapest rotors knowing I have to prep them but hey 100 bucks on 4 rotors vs 600 but it’s for a car that just sits no need to rust up 600 bucks so it depends on ur situation. If I where to daily it then use 600 dollar rotors since they are better metal and actaually balanced for perfect rotation.
Totally 😀😀
I drive very agressive myself and had those exact disks on my car, I had none of the issues you are mentionning and I drove in snow and calcium for 3 winters on those. In fact those are the best rotors I ever had, 5 stars review
Excellent! What brand? There are some better high nickel material rotors out drilled and non drilled and will outlast everything else for sure.
I bought the Powerstop Z26 kit disk+pads
Interesting! I am glad they are working for you 😃😃
@vincentmercier8595 I just bought the powerstop Z23 kit. I will get them in a few weeks. I drive about 40,000 miles a year. I hope they last at least a year, that's all I get from the dealership breaks. The powerstop Z23 kit was $200 cheaper than the dealership and $100 cheaper than my local Advanced Auto parts store.
@@dennismadigan2023 Awesome! Those power stops brake pads work great 😃
These 19 mm's for the mounting bracket, how on earth did you do that. Mine are actually impossible to get out😹😹
Super Long wrenches on amazon or any other supplier work best for me to break them loose 😃
I guess this is location based as this isn’t really a problem in FL. Sounds like a snow state problem. Lol.
Yup
Not all drilled slotted rotors are created EQUALLY!!! same goes for ceramic pads.
Correct 😃
I think you've convinced me to do my DIY brakes as drilled only, looks like a nightmare to machine out those slots again, whereas I can just slap them back under the bench drill to remove rust during brake changes
Are you racing your vehicle on a track?
@@EasyFixShaun yes it's a daily driver mk1 golf that does monthly track days. I am first upgrading wheels, brakes and suspension bit by bit before I touch the engine, it's already fast and reliable. So I'm going to install a conversion kit to make the 237mm solid rotor into a 280mm vented rotor. Figured I might as well drill the rotor and paint the calipers red to make it look nice and fun for the track days
Nice! Hawk brake pads are your friend on the track 😃🔧🤌
How you start the video about rotors and how bad drilled/slotted can be, then end with a shout out to brake pads? What about the rotors? What are good rotors? Lol
Good point! I would get premium coated rotors for decent results. Oem rotors will give best results from rust. Usually the runout is better, they are machined more precisely. Oem generally have more nickel in them and can withstand being parked for months before rust will start to accumulate. Think about new cars that sometimes sit on the lot for a long time... brakes are always still perfect 😀😀
I prefer to get them cut at a local shop. Its better to have money spent at a local shop rather than a Chinese factory worker. Unfortunately the lack of intelligence and self reliance has made a shop willing to cut rotors nearly impossible today.
I agree. All new rotors should be machined. It is amazing how much runout there is in all new rotors. They all end up pulsating. Not good 😃🔧
Just install slotted rotors. On that level of performance drilled and slotted is overkill, plus being a daily driver you want rotors to last longer
Great tip! 🤌
you dont need sloted or drilled for that... you likely won't be going with those again
Then dont install performance parts on your daily then. Thats what weekend cars are for😂😂 People these days. My daily is a junked pile of dirt. And my weekend is shiny and money hungry😂
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i'll never go drilled/slotted again. all i could get under the gun of motor vehicle inspection ;)
I agree! 😃
Just changed mines. And they make a lot of noise on the rare ones.
Nice! 😃🔧
Well… I’m replaying the front rotors on my wife’s suburban every 12 months now because she’s warping the crap out of them with the way she drives.
Common problem with that model 🤣
If shes warping the rotors, then someones that bedding them in at all or properly. You have to break them in.
@@acrocheezefpvshe probably is a two footed driver. One on the gas other on the brake
If brakes are done right they can be abused and work perfectly for years. All rotors are warped out of the box. Put one on the brake lathe and discover.....
Bedding isn't the problem. Garbage rotors are the problem.
Easier fix...don't live in the rust belt
True
My rotors rust after days in Arizona if I don’t drive the car. 1 rain and there is a layer of rust over night on my rotors. No worries for me though, when my engine oil is at temp the car will get ran hard they’ll get burned off in no time at all
That's awsome 😃
This will happen anywhere you live. Bare steel will rust on contact with water.
easier fix..be rich
See I put a set of these on and I honestly think I'm mistaken these for a wheel bearing because ever since I put these on I almost have like a humming sound and a clicking noise and it won't go away so I'm just going to replace them never buy them again they're loud as hell
Wow! Very possible. These were making a ton of noise also when braking. I think replacement with regular rotors is a perfectly logical test. Most likely that will solve the noise. Test to be sure 😀
The real answer is rip
"Rust will stack up on it unless the rust is wiped off by the brake pads" sounds like a you problem, to the owner of this car
True 😂
The drilled rotor fad needs to stop. They do not provide any noticeable cooling, take away usable surface on the rotor, and are prone to cracking. Drilling rotors started in the 70s because pads would off gas causing them to float on the rotor. The holes allowed the gas to escape through the center cavities preventing pad float. Pads dont off gas anymore, therefore there is no need for them.
I also like good old fashion non-drilled rotors
If you come into my shop requesting drilled and slotted rotors and you're putting it on a truck or an all-wheel drive SUV, no warranty
That makes so much sense 😃🔧
@@EasyFixShaun Well we had a guy come in with this 4x4 Chevy. We put on drilled and slotted rotors per his request three or four months later he comes back because they're grinding and squealing. Turns out he decided to take his truck mudding and completely ruined the pads and rotors caused the whole big scene about how we have a 3-year 36,000 mi warranty at our shop and that we should cover it, which we did and that was our learning lesson
What a pain! probably had "debris" caught between the surfaces. It is weird that brakes have warranty for many of the wear types of issues they have during use and during failure. Some company probably started a "free lifetime warranty replacement" at some point for marketing purposes. Then everyone followed over time. Kinda dumb.
Slotted rotors are great just don't get drilled.
Good tip 😃
I guess you can keep a can of computer duster to blow out the dust in the holes.
😂
mine make the same noise only when braking.. its getting really annoying and wondering if its compromising my braking. (ie, dangerous)
Sometimes the extra noise. Sometimes the brakes won't seem as powerful as they should from having less metal to grab for the pads. If they feel less powerful that could be part of what's going on as long as everything else odds working correctly. Seized caliper pins can contribute to that also. Sometimes a seized pad in a mount might contribute. Ao basically if everything works properly but brakes still seem insufficient-it isnt a bad idea to try new pads and rotors to fix and retest. I hoped that helps 😀🔧
You know you only use slotted or drilled if you have a race car. Any other car it don't matter. It's made for stopping and going and repeating over and over again. Says scotty
Good take on slotted rotors 😀 scotty is king 😂
I have drilled and slotted rotors that make a loud ticking noise going past any wall. Mind you, they only have about 2k miles on them. Its very annoying. Should I resurface the pads and rotors, or just replace them?
I would replace with stock coated rotors. Pads could be saved if they look good and aren't wearing funny. Replacement of them isn't a bad idea though also 😃🔧
Hi did you found any fix for this? I am also facing same issue with my golf r 2023. its very annoying
@@rohithpekkavumkal I did! I replaced the rotors with stock flat surface rotors and the problem was cured 😃🔧
@@EasyFixShaun my stock rotors are drilled ones. I think that’s why it’s making the annoying noise. Glad that you are free from that..😀
Oh wow. Performance car?
I have ZZP drilled and slotted with hawk oads and i get brake fade some days without even tryng
Really? Wow, what year make model? On the road or race track?
@@EasyFixShaun 06 SS and this is on the highway coming home from work. I'm about to swap my rear for drilled and slotted with new calipers in about an hour. But the fronts I'm possibly going to have to switch to new calipers..might as well do the ats-v upgrade
Nice. Good luck with your project 😃
Did anyone notice those are installed backwards?
are these directional?
Yes they need to cut into the pad.
Oh ok. Wouldn't they cut either direction though?
The slots and drilled are supposed to point toward the rear of the car. Which it looks like they are.
Did anyone notice that wasn’t a hawk?
So if you buy the pads you recommend do you just buy a ventilated disc with no slots and drills
Yup! Stock discs works great. If you aren't racing, spend the extra money on bad ass pads from hawk.com and you will be blown away. They are hard to source sometimes. But they are worth their weight in gold. The brake pad compound is most important thing to upgrade in a stock vehicle if you want more stopping power. Slotted and drilled are only needed if the vehicle is on a racetrack and needs massive cooling. They usually cause problems if they are used in a daily driver... 😃🔧
@@EasyFixShaun Then why does Mercedes, BMW ect put them on their cars. Their engineers get paid BIG MONEY to design these brake systems and they put slotted or drilled rotors on their cars and they're daily drivers. I don't think I would differ with those engineers because they know what they're talking about especially for the kind of money they get paid. Slotted or drilled rotors are not only for racing they can be used for a daily application. RACING drilled or slotted rotors are made of a different material unlike the daily driver rotors.
Anyone can put slotted on a vehicle. But If the vehicle came with them from the factory they are likely needed, replacements should be the same.
If a vehicle came with stock non-slotted and/or non-drilled rotors- I would replace with the same of rotors there too 😃
@@williamsantiago7303 On a street car that gets no track use a drilled and slotted rotor really doesn't buy you anything but headaches. BMW and Mercedes put them on their cars simply for the aesthetics.
I have access to 2 brake lathe systems.
I won't turn drilled or slotted. It destroys the bits.
Yup. The drilled and slotted look cool. But they cause a lot of problems.
So a shitty worker? 💀
huh?
I’ve had drilled and slotted for a month and it’s already making noise when I stop what should I do? Only about 1200 miles on them
Probably werent installed correctly. Were the brackets lubed in the correct spots?
Sorry for late reply. Still have noise that you didn't before?
You need to break the pads and if you don't you will have issues
break in? Do you mean like "breaking in a motor?"
Slotted rotors are directional. Those are reversed (the wrong direction) fact check it.
Hmm really?
Another reason to go with quality blank rotors on street cars
I agree! Especially in the rust belt 😃
Looking at the rust they're looking like 10 years old. Never had problems with Brembo or Zimmerman.
The premium brembo and zimmermans are likely much much better. These are less than a year old. Cheap economy rotors. They rust like crazy 😃
just buy coated drill n groove discs, problem solved
Great tip 😀
@@EasyFixShaun i just recently upgraded my brakes with the coated drill n groove mate. all parts of the disc that the pads don't touch stay coated eliminating any future rust, including the grooves which stay coated black 🙂
Thats amazing! Any uncoated rotor in the rust belt last a year and is completely rotted. Rust is the enemy 😂
@@EasyFixShaun Yeah i totally get that, I'm in Scotland UK and our cars can suffer bad from rust too as we're very close to the sea, and also the roads get salted a lot through the winter months. Rust is definitely the enemy 😂
Such a small world! Looks like we all have the same problems. Thanks for commenting it was so nice to chat! Cheers mate!!
Haha I replace my brakes every 12 months so it doesn't make a difference at all 😂
In that case....perfect 😂
@@EasyFixShaun YUP I ended up making the switch to slotted and drilled, I'm never going back to regular rotors. The difference in brake power is absolutely amazing
Nice! I am glad they are working out for you 😃
What a BS video. Drive your car daily like everyone else and it's a non issue. Been using them a long time and there's never even been rust on them... let alone rust that accumulates and causes a problem.
Slotted and drilled shorten effective rotor life where I live in the rust belt. The advantage is heat dissipation. If you aren't at a race track, standard are better in my opinion. Also the metallurgy that a cheap slotted rotor is made of rust very quickly compared to oem. More Cons than Pros 😃🔧
@@EasyFixShaun What do I know, being in the rust belt, running these brakes, without issue. The only way this becomes and issue is if you let the car sit for extended periods of time. But that causes any kind of brakes to sieze up.
I am glad they work good for you! Nothing wrong with that 😃🔧
@@EasyFixShaun I think it has more to do with how the owner treats their car and the quality of the rotor than it does "drilled/slotted rotors in general. That's all I was saying. Cheers.
I agree. The "pot metal" rotors in the rust belt and are junk usually within 12months or so. The slotted rotors people are buying online are the same metal and I see them rot even faster and cause more problems. It's mostly a rust belt issue. Southern dry areas would be fine 😃🔧
Drilled is the biggest trash. I do not love them. Slotted only.
Any way to let the heat out in a racing situation is good for sure. Durability of these style rotors for the rust belt every day operation is horrible 😂
@@EasyFixShaun very true. I have run many types of brakes except dry carbon / super high end stuff and I’d say slotted is the best. my GR Corolla does not have corrosion issues but it’s also kept in the garage between hard track days.
Thats really cool! 😀😀
get sum stainless steel discs
Do they make them? That would be a good idea for the corrosion if it worked 😃😉🔧
@@EasyFixShaun Powerstop offers some premium stainless steel discs.
mmmmm interesting
@@EasyFixShaun Stainless rotors are used in some motorcycle applications. Stainless steel is not as good at releasing heat compared to hi carbon and regular iron rotors. That's probably the main reason they aren't used.
Oh ya! Lots of off-road stuff has that. I just haven't seen it on a car yet.
BS
Learn the hard way. Try them in a salt belt state and see what happens over time.
Can’t you draw these holes out?
Never tried it. Probably would work.
Or park your car inside a garage and it will be fine
Good point! Garages have moisture though also in many cases, especially if they aren't climate controlled, so it may not always work ⚠️
@@EasyFixShaunhope you know heated garages CREATE rust
I have seen that! Depends on the humidity in the cases I have seen. If humidity is low it seems to be much better than being outside.
My rear brakes started screeching after 200 miles. Replaced the rear with oem yesterday and I haven’t had any problems yet.
Nice! I am glad you got it fixed. Most people replace all the parts around the rotors in an attempt to fix noise. Usually thinking they are not the cause because they were replaced recently. Slotted should be reserved for race applications only imo. But some people have good luck with them. In the salt belt where i live they are a hard NO. They rust at a 10x rate 😀🔧
Or you can buy a normal rotor because you don't need a slotted one.
😂
You don’t need it but you need it
😂 true
You can’t machine slotted and drilled rotors 😂
Probs a bad idea huh?
We don’t care. They look cool.
They do look cool ✅
The rotors are in the wrong direction!! Put them on correctly and they will not do this.
Are they directional like some tires?
@@EasyFixShaun yes. When you buy a set of these they come labeled "front right", "rear right", etc...
Yes they are directional
Well first off those rotors are on the wrong side
Which side do they go on?
@@EasyFixShaun drilled and slotted rotors are directional. If people are experiencing excessive noise they probably have them on the wrong side like shown in the video
@@nathanflecke9635 Interesting. These ones have excessive noise from rust. Maybe its twice the noise?
I flipped them inside out, but then the brake calipers and brackets would not bolt on. Weird.
@@EasyFixShaunswitch sides for the pieces……
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Wow those things really rust!
So Rusty! 😃🔧
Bro just re drill it
good tip! too much work for me 😃😂