Please help on my oem brakes
 

So my car is making a weird noise from the front left (like a slight rubbing/scrapping) when braking or when driving. A mechanic checked my brakes and found that my rotors are starting to go. He mentioned that i still have some more life on them but the sound will just get worse and eventually i will have to replace it..

Im running the OEM brakes and pads & car is at 30k.

Not looking to spend too much money as i barely use my car now but when i go on mountain drives i push the brakes hard.

I found this http://www.ft86speedfactory.com/stop...l#.WUK0iRiZM0o

Would that be good enough? Im in between the stop tech or the hawks, have not buy brakes before so im just looking for some input. Thanks.

imo no, I wrote something up on the reddit that I'll link here. OEM blank replacement rotors are like ~$170 for a full set, stoptech pads on their own are like $130 for a full set, the rotors in that kit are overpriced and the stainless steel lines aren't useful for a DD so you're overpaying by about $200, and you still need to buy brake fluid.

https://www.reddit.com/r/ft86/commen...th_it_for_500/

I'm skeptical your rotors are shot, I've got 60k miles on mine, 5 track days, ~3 seasons of autox, I put over 30k miles on the stock pads (2x track days, about 1 season of autox) and they still have life left but I roasted the pads so they weren't gripping well anymore. If it's a brake pad dragging what needs to happen is the caliper slider pins need to be cleaned and regreased, maybe an hours worth of labor, a pad and rotor swap without cleaning the pins would make the noise worse and wear out the new equipment faster.

See if someone will do a kit with a quality brake fluid like Motul, stoptech pads, and centric premium blank rotors. The slotted rotors will be of no value to you, and the stainless lines offer a very minimal improvement until you've got lots of miles on them.

The stoptech components are very good, I personal run their street performance pads, and I'm very happy with them.

Your rotors are shot at 30K? That sounds sketchy given how you say you use your car. My first thought for the dragging noise was a pebble stuck in the dust shield, but presumably even that mechanic could spot that.

Interesting, wouldn't a pebble loose itself? Been like that for about 1 month.

That would account for one but both sides at the same time would be beyond coincidence.


Not a hope in hell rotors would be gone but pads still OK after that few miles. Any chance you can get a picture of at least the outside visible parts for us? I doubt the mechanics diagnosis. Even if they were in some way damaged that would be a symptom not a cause.

Thanks yes i know something is not right and i cant find what it is. Im at AZP installs in jersey right now, hope they can figure it out and finally b over with this issue

AZP are good people. They'll figure it out.

it could be hub/dust shield that touching rotor? check that out

Most likely caused by the pads moving around slightly and touching the no wear ridges at the outer and inner limits of the pads as they wear the rotor. Modern asbestos free brake pads wear rotors quite aggressively. I note that the rotor surface rusts quite quickly if you do not drive regularly. That causes the rotors to wear a little faster then if you drive regularly. Rust can also make noise but only for the first brake application or two after the car has sat for a few days. Not likely your front brakes are worn out just yet even if you drive like a maniac, these are light cars with big front brakes for their size.

Rotors are designed to last only for about one set of pads with a bit of extra thickness to allow for variation in braking habits.

Seizing calipers make a knocking sound and you can feel the rotor runout through the brake pedal as well. It is unlikely your calipers are seizing at this young age.

I recommend you brake harder than you are accustomed to, at least a few times a month. This will help reduce brake noises

"Rotors are designed to last only for about one set of pads with a bit of extra thickness to allow for variation in braking habits"
Really? You are not into business selling brake disks by chance? :)

https://www.yourmechanic.com/article...otor-disc-last

I highly doubt your rotors are bad. Shady shop/ mechanic alert... Another reason I always do my own maintenance.

Disc life varies. Generally speaking modern discs are designed to minimum weight for a few good reasons. You will likely wear out your discs before the second set of pads is fully worn out. Fitting harder pads makes this even more likely. Unless you know what you're doing you probably won't realize this.

Because discs should be machined if only to remove the no wear ridges and they are no longer thick enough to tolerate machining when worn by one set of pads, competent brake mechanics advise replacement as a more cost effective and safer solution.

Most drivers fail to realize that replacing discs with each set of pads is now the safer recommendation. You are free to endanger yourself if you wish.

So took the car to AZP yesterday and they did not found anything abnormal. They took the car for a ride and they claim its just road noise. The only thing that they found is that my front tires pressure was set to over 50psi. I did not think of checking that before, but when i got my summer tires installed those idiots must have over fill the tire pressure.

Anyway, i do think the sound is not as bad as before (although i still need to drive the car a bit more), however AZP did also mentioned that my tires are starting to get 'road dry' meaning that i should start thinking on replacing my tires at some point. But no budget for tires right now so thats gonna have to wait until next spring so i can do the wheels/tires and possibly brakes.