V12 Vantage S Carbon Ceramics. Pad or disc changes?

[Flugplatz]

Any one replaced pads or discs on their V12 Vantage S?

at what mileage and why?

Many thanks

[AMDBSVNick]

Had to replace discs on my old DBS @ circa 22,000 miles but more importantly 3 track days.

[Andys1000]

Flugplatz said:

Any one replaced pads or discs on their V12 Vantage S?

at what mileage and why?

Many thanks

Are yours ok as I was advised by my AM dealer that the discs do not wear out - ie they never need be replaced...

[sierraV12V]

I've replaced the pads on mine and need to do so again. Driving hard at the track with stock pads will just about burn through the front set in only a single track day, there will still be enough pad left to drive around town but not enough to last another day at the track. The rotors should hold up much better than the pads, after the first track day I was still ~100g over the minimum weight (if I weighted them right, I've heard that you should really bake them out before weighing which I didn't do).

Here are a few pics after my first track day with the car, the pads had about 14k miles plus three 30-min sessions. I put a new set of pads on and did four 30-min session and have even less pad left now than in the photo below, just haven't had a chance to change them out yet. I'm interested to see how much weight the rotors lost.

[AMDBSVNick]

Andys1000 said:

Are yours ok as I was advised by my AM dealer that the discs do not wear out - ie they never need be replaced...

He lied

[JohnG1]

sierraV12V said:

...I was still ~100g over the minimum weight (if I weighted them right, I've heard that you should really bake them out before weighing which I didn't do).

Indeed, you have to bake them to dry them out before weighing.

[8Tech]

As he lied, when you need disc you should tell them to replace them FOC under warranty because they must be faulty if they do not wear.

[Flugplatz]

sierraV12V said:

I've replaced the pads on mine and need to do so again. Driving hard at the track with stock pads will just about burn through the front set in only a single track day, there will still be enough pad left to drive around town but not enough to last another day at the track. The rotors should hold up much better than the pads, after the first track day I was still ~100g over the minimum weight (if I weighted them right, I've heard that you should really bake them out before weighing which I didn't do).

Here are a few pics after my first track day with the car, the pads had about 14k miles plus three 30-min sessions. I put a new set of pads on and did four 30-min session and have even less pad left now than in the photo below, just haven't had a chance to change them out yet. I'm interested to see how much weight the rotors lost.

---

WTF?????

So its £600 in pads for a single track day??

and according to the first response, 3 track days on top of normal mileage and your discs are gone too?

So £4000 per track day less the value of your road mileage??

[Flugplatz]

sierraV12V said:

Can you feel a 2nd ridge from the outside of the hub wear ring and the rest of the disc surface?

Edited by Flugplatz on Saturday 13th May 12:58

[AMDBSVNick]

Flugplatz said:

WTF?????

So its £600 in pads for a single track day??

and according to the first response, 3 track days on top of normal mileage and your discs are gone too?

So £4000 per track day less the value of your road mileage??

Obviously my car weighs more than yours so you need to factor that in. That said I know of one other DBS and one V12V that have had discs replaced and two V12V that aren't far off.

[quench]

Flugplatz said:

WTF?????

So its £600 in pads for a single track day??

and according to the first response, 3 track days on top of normal mileage and your discs are gone too?

So £4000 per track day less the value of your road mileage??

If you are driving the car anywhere near its limits for extended sessions, yes, the brakes will wear substantially. There's a reason why track junkies don't use carbon ceramic brakes. For example, the 911 trackday guys will frequently swap out their CCM's for cast iron brakes until it's resale time.

That being said, try driving a V8V with its cast iron brakes on track days and see how long it takes for the brakes to be destroyed... never mind the brake materials, what these brakes really need is some proper cooling.

[sierraV12V]

Flugplatz said:

---

WTF?????

So its £600 in pads for a single track day??

and according to the first response, 3 track days on top of normal mileage and your discs are gone too?

So £4000 per track day less the value of your road mileage??

Yes, the pads are surprisingly expensive for how long they last on track but they are street pads. If I was going to track the car often I'd get a set of track pads and duct the brakes. Last time I was at the track they got a bit toasty, turned the AM writing from white to golden brown on the fronts but they never faded and kept consistent brake feel the entire day



I know of people who track CCM rotors on a regular basis and they get up to 30 track days on their rotors but they also have proper cooling ducts and a lighter car. I'm not sure how long the rotors will last under track use on a V12V with street pads and no cooling but I plan to bake the rotors an re-weigh when I change the pads again.

[sierraV12V]

Flugplatz said:

Can you feel a 2nd ridge from the outside of the hub wear ring and the rest of the disc surface?

Edited by Flugplatz on Saturday 13th May 12:58

I can feel a difference in the surface finish but there's no noticeable indent where the pads hit the rotor, maybe slightly but its hard to say

[AMDBSVNick]

sierraV12V said:

Last time I was at the track they got a bit toasty, turned the AM writing from white to golden brown on the fronts but they never faded and kept consistent brake feel the entire day.

Exactly what happened to my DBS.

[Flugplatz]

sierraV12V said:

I put a new set of pads on

Did you go through the AM bedding in recommendations?

[sierraV12V]

Flugplatz said:

Did you go through the AM bedding in recommendations?

Yes, I used the procedure recommended by AM.

[sierraV12V]

AMDBSVNick said:

Exactly what happened to my DBS.

Nick, glad I'm not the only one. The gold lettering actually looks pretty good, just wish I could make the rear calipers match...

[RobDown]

Swap them with the front ones for the next track day

[Flugplatz]

sierraV12V said:

Yes, I used the procedure recommended by AM.

I may be about to do the same.

I have the pdf.

any further tips?

like what g meter?

Thank you

[sierraV12V]

Flugplatz said:

I may be about to do the same.

I have the pdf.

any further tips?

like what g meter?

Thank you

I just figured out how long it would take to stop at a 0.5g deceleration rate, for 60 mph it will take roughly 5.5sec to stop. I tried to brake evenly to match my target time, not perfect but I doubt I could do any better with a g meter. Alternatively I guess you could install a g meter app on your phone and do it that way, many lap timers have one. Hope this helps!