570s - How do they fare on track in terms of brake wear etc?

570s - How do they fare on track in terms of brake wear etc?

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jkracing

Original Poster:

62 posts

197 months

Thursday 5th June
quotequote all
I have a 570S spider currently, which really only sees weekend morning blasts and a Euro trip somewhere once a year. Id really like to use it on track now and again, but am a little scared of the cost of consumables...

Those that track their mclarens, how do the carbon discs etc hold up? Pads aren't too expensive and I'll happily change those myself.

Ill probably not bother renewing the warranty after August and just put some money aside, so don't need to worry about all the inspections etc then.

The alternative is to go and buy something like a 718 GT4, which is arguably better suited to my needs.

200Plus Club

11,921 posts

292 months

Thursday 5th June
quotequote all
jkracing said:
I have a 570S spider currently, which really only sees weekend morning blasts and a Euro trip somewhere once a year. Id really like to use it on track now and again, but am a little scared of the cost of consumables...

Those that track their mclarens, how do the carbon discs etc hold up? Pads aren't too expensive and I'll happily change those myself.

Ill probably not bother renewing the warranty after August and just put some money aside, so don't need to worry about all the inspections etc then.

The alternative is to go and buy something like a 718 GT4, which is arguably better suited to my needs.
Think you've got to ensure plenty of pad depth remaining at all times so it doesn't break up and damage discs.
If regular trackday use is there a steel conversion from a GT and save the ceramics like a lot of porsche guys do?

akadk

1,541 posts

193 months

Friday 6th June
quotequote all
the discs do not hold up well on track

they are CCM (carbon ceramic matrix) brakes, these are different to CCB set up on Pork etc.

the CCB's have a much hard outer layer

the CCM outer layer is not robust, and with excess heat will fail, exposing the fibres underneath which will then oxidise - symptom will be you loose the shiney glass smooth appearance and it will have a darker, more coarse finish

if you will track them, limit your session times and ensure you over index on cool down laps

I speak from multiple real world experience - not theory or hearsay

robj4

425 posts

171 months

Friday 6th June
quotequote all
Agree with akadk, not helped either by the E-Diff braking one wheel

12pack

1,629 posts

182 months

Friday 6th June
quotequote all
akadk said:
if you will track them, limit your session times and ensure you over index on cool down laps
This.

And consider limiting full-on laps.

In my case, I now have an Atom for track and the 650 now exclusively a road car. But the discs have survived 16 track sessions with the above advice.

Chrisatronic

313 posts

113 months

Friday 6th June
quotequote all
12pack said:
This.

And consider limiting full-on laps.

In my case, I now have an Atom for track and the 650 now exclusively a road car. But the discs have survived 16 track sessions with the above advice.
You mean 16 track days out of 650s CCMs? That's very good, my 981 GT4 steels died in 7! (OEM, made of cheese)

I really want to track my 570 but just once or twice so I don't have kittens about the discs, my issue is getting insurance - no one will touch it? Tried the usual suspects I used on 4C/GT4 previously, A-Plan / Classicline / Moris / Locktons and they won't even quote me.
Anyone managed it?

samoht

6,583 posts

160 months

Friday 6th June
quotequote all
Fairly sure I used https://www.insuremytrackday.com/ for my 570GT at Bedford

samoht

6,583 posts

160 months

Friday 6th June
quotequote all
Advice I had from V:
- limit tyre temps, once you reach 60-70 C on the dash, back off
- make sure you back the stability control off to the interim setting to limit rear brake TCS application
following these avoided any noticeable wear on the discs (although the pads wore quite a lot).

My understanding is that the brake discs will last forever up to a certain temp, wear quite quickly above that, and if you get them hot enough you can destroy them very quickly. So there isn't a set number of trackdays you can do, it's purely based on how hot you get them.

At some point I hope to go to Rebrake to get mine resurfaced with a harder surface, thus allowing harder track use.



Edited by samoht on Friday 6th June 13:09

jkracing

Original Poster:

62 posts

197 months

Friday 6th June
quotequote all
Thanks all, thats pretty much confirmed my suspicions. Maybe I'll take it out for one day just to tick the box. Just feels a little wasted having the car on British roads! Maybe I need more euro trips biggrin

The insurance problem is one I hadn't considered though... if I can't find anyone that'll offer insurance then it's a no go as my finance company would have a mental breakdown.

Zero7

531 posts

197 months

Saturday 7th June
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I was thinking about getting 570s but do 5-6 track days a year, I've seen quite a few youtube videos of people with these on tracks such as Bedford which have high braking areas so is it a no no?

samoht

6,583 posts

160 months

Saturday 7th June
quotequote all

The standard ceramic brakes are ok, if you're happy to push for 5-10 minutes and then back off to cool things down. So for an occasional trackday and get a feel for the car near the limit, absolutely fine.

If you want to push hard for longer than that, there are options. The cheaper option is to fit the steel brakes, or if buying, buy a 540C or 2016/17 570GT which came with steels originally. The high end option is to send your worn ceramic discs to someone like Rebrake, which will renew them but also apply a harder surface layer which will stand up to harder use.

"Complete coating of the brake disc with wear-resistant Si/SiC friction layer"
https://www.rebrake.de/en/prices/

The stopping power of the car on the standard ceramics felt insane to me, it took most of the day to get used to trying to judge stopping distances. I would assume the steel discs are plenty powerful to enjoy on track, just slightly higher unsprung and rotating mass.

So yes it is an issue, but conversely there are options if trackday use is important to you.

Streetbeat

1,279 posts

90 months

Saturday 7th June
quotequote all
I did 6 or 7 can't quite remember in my 570s in a year and a half (inc goodwood which involves some very heavy braking), I had no issues with the ceramics, as said above, if you are sensible with session times, cool down and pad depth they will be fine.

If you're really concerned, there's plenty of steel options for not much money.

They are such an awesome car on track, makes you quickly realise just how fast they are and how much confidence they inspire.

Zurich private clients inc 3 trackdays on their road policy (that's who I used this year) but i must admit i did struggle a bit with sensible quotes, classicline jumped £500 from a quote and taking out a policy 3 months later so ended up with zurich, allegedly they have had some high value claims.

Howden (used to be a plan) insurance also includes track days from memory.





Edited by Streetbeat on Saturday 7th June 19:14


Edited by Streetbeat on Saturday 7th June 19:15