Brakes Brake Upgrade Discussion (Discs / Pads / ... )

[NeroMastic]

As of yesterday, my brake discs got to the end of their life after 37k km (1 year 9 months).

I changed the original pads 1 year ago at 5mm (worn those down in some TFs and 2 hours of Slovakia Ring track day). I installed the Hyundai rsl29. Since then in 3 full days (trainings) and a few TFs I did maybe 50-55 laps on Nordschleife. Most of them not cooled down properly just roll out on Döttinger Höhe.

The pads are still not fully worn down but with how the discs look but now - sadly we have to part ways. I do get a lot of vibrations that I can't even clean with braking anymore, not that it matters with the disc condition.

I have a set of original discs I'm thinking to use - all in all they lasted decently considering I have no extra cooling and couldn't do very careful cooling after every use. Pads are a problem as always, I was happy with how the rsl29 did but I can't find them anymore so maybe the new so called Hyundai performance (nexd), maybe ds2500 (khm, at least they look metallic and not coloured so not obvious)... will have to decide quick as I have a scheduled TF weekend with friends in 2 weeks...
I considered a BBK that would do better with heat and maybe even have better pad availability, but man as a regular person it's painful to think of 5-6k cost.

How you guys doing with your brakes, you happy and what do you use now with what usage profile? if anyone feels to share.

Yep that looks like worn out and cracks from overheating.
The i30N do have vents leading to the breaks, but not directly, rather indirectly, Hyundai has tested them in wind tunnel and on Nurburgring.
However what you need are bit more stronger Discs and Pads, 50 rounds of Nurburgring a day?
Yea thats basically using all of the Discs and Pads all at once.
I usually dont do more than 3 laps (due to Adrenaline rush getting the better of me) but the OEM I used have held they ground in both Traffic and on the Track.
However I will go to some more capable break kits with more better designed Discs and Pads.
Like Tarox for example
But for my stop gap I got Brembo Primes installed on mine and will test them myself on Nurburgring the coming next week.
Alongside the P0 PZ5.
Bit of a weird combo but I will see how it goes.
But in your case, do get some more better ones with more higher quality, perhaps even ceramic ones if you break that hard each day.

 

[Kempo-Maximus]

Why don't you simply install pagid rsl 2 instead of 29?

 

[benko]

Ahh, no, that's a total of laps not daily. The most I did was yesterday, 19 laps, between 8am and 4pm I am thinking of options, however I may just get something in a hurry now that I can use and maybe think on longer term next year... proper solutions require a lot more consideration usually, not a lot of well known plug & play, maybe except bu11et standing by his dba 4000 t3 clubsport strongly (not even sure off the top of my head if those are available in 360 size)

rsl2: even worse on road and i don't want to change brake pads several times a year. once in a while it's ok to experiment but being my only car if i can't get something off i can't just leave it there for days until i think of something. The trick was that these pagids had r90 (and apparently good enough so far).

 

[NeroMastic]

Why don't you simply install pagid rsl 2 instead of 29?

In Germany they are a bit iffy lets say with the Law and TuV
And getting them from Hyundai right now is expensive for what essentially you could invest into better ones for bit more.

 

[Kempo-Maximus]

There's a video what crap dba is in this thread. If you want durability - forget cross drilled brakes. Either full face or J hook slotted to clean the pad constantly

 

[Jajodu]

I certainly wouldn't be happy with the disk cracks you have. Make replacement a priority

 

[benko]

I certainly wouldn't be happy with the disk cracks you have. Make replacement a priority

Scheduled for next Wednesday, I'll just stick to going to grocery store and office in grandpa mode... I'll just use the stock discs I already have and see what pads we can find for now, and think of long term later. maybe I should research at least additional brake cooling effectiveness soon ish.

 

[NeroMastic]

Scheduled for next Wednesday, I'll just stick to going to grocery store and office in grandpa mode... I'll just use the stock discs I already have and see what pads we can find for now, and think of long term later. maybe I should research at least additional brake cooling effectiveness soon ish.

Getting Break cooling will only increase it so much and would be not a efficient use of your money.
Perhaps investing into some Ceramic Discs/Pads would work for your Driving?

 

[benko]

Ceramic disks are something I haven't even looked at, a pair of discs could worth more than the car

I had to change quickly so I went with stock discs and got a pair of nexd pads. However after only a few Nordschleife laps in the weekend TF - 18 laps I think whole weekend - I already have deposits (vibration) I have trouble getting rid of. I may try and remove the brakes to clean it a bit with sandpaper or something and see how the pads look.
I did max 3 laps at once, with rolling out mid speed after Schwalbenschwanz to cool a bit before end of lap, and doing 5-10 minutes driving around before parking, still not good enough. Admittedly I brake way too much, which is something no money will solve just practice maybe (or being reborn with more talent). So already thinking of next options... I see some (potentially TÜV-compatible) BBK options - ap, brambo, vmaxx - they are for the most part quite expensive and only helpful if they are noticeably better in heat dissipation AND consumables are very common shapes/sizes (for availability and price).
Any idea if any of the kits come with reasonable consumable prices, and would be maybe quick swappable pads? It could be interesting if switching out pads would be easy and quick on the side of road, without messing with the caliper.

@NeroMastic I would be curious of your experience with the PZ5. I'm pretty happy with my SC7s, not as sharp as the PZ4s were but super durable, after a total of about 15-20k road km and 75-80 Nordschleife laps they just look worn but not destroyed. Not as grippy as new of course, a bit of controlled and non-scary 4 wheel drift in some corners yesterday afternoon Didn't measure, probably down to 3mm or below now I still miss the sharpness of the PZ4, if only they were more durable.

 

[NeroMastic]

Ceramic disks are something I haven't even looked at, a pair of discs could worth more than the car

I had to change quickly so I went with stock discs and got a pair of nexd pads. However after only a few Nordschleife laps in the weekend TF - 18 laps I think whole weekend - I already have deposits (vibration) I have trouble getting rid of. I may try and remove the brakes to clean it a bit with sandpaper or something and see how the pads look.
I did max 3 laps at once, with rolling out mid speed after Schwalbenschwanz to cool a bit before end of lap, and doing 5-10 minutes driving around before parking, still not good enough. Admittedly I brake way too much, which is something no money will solve just practice maybe (or being reborn with more talent). So already thinking of next options... I see some (potentially TÜV-compatible) BBK options - ap, brambo, vmaxx - they are for the most part quite expensive and only helpful if they are noticeably better in heat dissipation AND consumables are very common shapes/sizes (for availability and price).
Any idea if any of the kits come with reasonable consumable prices, and would be maybe quick swappable pads? It could be interesting if switching out pads would be easy and quick on the side of road, without messing with the caliper.

@NeroMastic I would be curious of your experience with the PZ5. I'm pretty happy with my SC7s, not as sharp as the PZ4s were but super durable, after a total of about 15-20k road km and 75-80 Nordschleife laps they just look worn but not destroyed. Not as grippy as new of course, a bit of controlled and non-scary 4 wheel drift in some corners yesterday afternoon Didn't measure, probably down to 3mm or below now I still miss the sharpness of the PZ4, if only they were more durable.

For the Break discs/pads there is generally a difficult option to choose a best overall, Yellowstuff and Plagid ect sure can work, but generally friction and heat expansion is at the end up to the quality, ceramic discs+pads are usually the best option for intermediate to frequent Track driving, practice can work to prevent such wear and tear, but no man is immune to the physics of nature and laws of gravity.
Big break kits can work too and perhaps even be better, I myself consider getting ones from Tarox.

And as for the PZ5 they are even sharper by a bit than the PZ4.
However the Durability has yet to be seen, but I rather change every 2 years sharp tires than have them blow on me on the Highway or worse case, Nürburgring.

 

[benko]

However the Durability has yet to be seen, but I rather change every 2 years sharp tires than have them blow on me on the Highway or worse case, Nürburgring.

Oh; I destroyed my PZ4s after 2 hours of Slovakia ring (20 minute sessions, cool down lap, then with 20 minute break so not continuous), chunks were peeling off the left front tyre. So I changed them after 8 months of owning the car basically. In comparison what the SC7s did is nothing short of phenomenal...

 

[NeroMastic]

Oh; I destroyed my PZ4s after 2 hours of Slovakia ring (20 minute sessions, cool down lap, then with 20 minute break so not continuous), chunks were peeling off the left front tyre. So I changed them after 8 months of owning the car basically. In comparison what the SC7s did is nothing short of phenomenal...

Did you get the ones with HN (Hyundai inscription) on them?
Because those are bit less durable on the outside.
While I got standard PZ5 without HN.
They are so far holding on even after a round at Nürburgring.

 

[benko]

Did you get the ones with HN (Hyundai inscription) on them?

I don't remember but they were the ones coming with the car so that's a yes I assume. If I go with a new set of UUHP I'm undecided between SC7 again or PZ5. I'm also contemplating to get a set of lighter wheels with some newbie friendly semi slicks just for track, and use 4 seasons for road (which is also probably going to increase heat in brake system so I do need to sort this topic out first).

 

[NeroMastic]

I don't remember but they were the ones coming with the car so that's a yes I assume. If I go with a new set of UUHP I'm undecided between SC7 again or PZ5. I'm also contemplating to get a set of lighter wheels with some newbie friendly semi slicks just for track, and use 4 seasons for road (which is also probably going to increase heat in brake system so I do need to sort this topic out first).

I am honestly happy with the PZ5 on mine, as for Semi slicks, you could get a fresh set of rims for them as I would do too.
But the Stock i30N rims are fine for me both appearance and cleaning wise, there is no avoiding the break dust from break pads.