How long do your steel disk brakes last?

[jeremyc]

How much time/mileage do you get out of your Porsche brake disks assuming no track day use?

Does 20K miles, two and a half years seem about right?

[HoHoHo]

28,000 on my old 996

My current 997 has 21,000 miles on the clock and seems to have a lot of life left (I've had two track days on them) and I can see them going way past 30,000 miles.

[Sunnysidebb]

jeremyc said:

How much time/mileage do you get out of your Porsche brake disks assuming no track day use?

Does 20K miles, two and a half years seem about right?

Bit of a loaded question TBH. It really does depend on how you use them or not if you dont drive the car often.
The common problem is corrosion long before they actually wear out, closely followed by warping.
My first set corroded with plenty of disc remaining and I manage about 10k pa.

[RDM]

i've got 22k on mine and, as mentioned, looks like corrosion will be the killer rather than wear. a car being tracked frequently might actually last a fair bit compared to one that only gets out for ph runs.

[Rockster]

jeremyc said:

How much time/mileage do you get out of your Porsche brake disks assuming no track day use?

Does 20K miles, two and a half years seem about right?

From new my 02 Boxster's pads lasted around 50K miles and the discs nearly twice that.

The next couple of sets of pads/rotors didn't last quite that long, but his last set appears like it will deliver some exceptional life.

My 03 Turbo's original brakes are up to over 78K miles and the pads/rotors still have life. The brake wear worning light is not on and I drive my cars until that comes on before I'll do the brakes.

With no track time I can't imagine how one could only get 20K miles of brake life.

Sincerely,

Rockster.

[thegoose]

Rockster said:

With no track time I can't imagine how one could only get 20K miles of brake life.

Try imagining living in the UK first, that will make it easier to get your head around

[Diesel130]

Mine were replace shortly before I bought it nearly 6 years ago...

Fronts did 30K / 5.5 years before corrosion on the inside face got the better of them.

Rears are still going strong.

[pikey]

3 years / 20k miles on my 997 C2s and no advisories or wear regarding impending replacement.

[Trev450]

My fronts lasted about 20k before they started vibrating or became warped depending on which view you take, and my rears were changed at 27k due to corrosion.

[Soovy]

I did 65,000 miles in my 996 and didn't change discs.

[Scelto]

OP said:

How much time/mileage do you get out of your Porsche brake disks assuming no track day use?

Does 20K miles, two and a half years seem about right?

Obviously it depends on usage...

My 2009 C4S daily driver has covered around 26k on the original discs and pads, with plenty of life left in them yet.

[gubbs997]

My C2S has done 52k on original disks/pads with two track days, fronts are now down below 20% so will need replacing soon rears still 50%. You have to be religous with driving the car after washing too clean disks as they will rust otherwise and car has always been garaged. Its only right angled corners you need to brake for anyway!! just keep on the power otherwise, improves the handling no end

[Maersk]

pedant;on/ Grey modular cast iron /pedant;off

[CraigVmax]

my fronts are 80% worn at 34k miles on my TT. I dont think they have been replaced before but i could be wrong.

[thegoose]

Maersk said:

pedant;on/ Grey modular cast iron /pedant;off

Iron in an element - I'm guessing brakes are an alloy including iron, making them steel.

[melv]

jeremyc said:

How much time/mileage do you get out of your Porsche brake disks assuming no track day use?

Does 20K miles, two and a half years seem about right?

Disappointing Jeremy -must try harder!!

[thegoose]

I used to warp a new set of fronts in under 90 minutes driving when I raced my 964 on Pagid Blacks.

Yellows were much better though.

[topcarrera]

thegoose said:

Maersk said:

pedant;on/ Grey modular cast iron /pedant;off

Iron in an element - I'm guessing brakes are an alloy including iron, making them steel.

Cast Iron is an alloy of Iron and Carbon!

Steel is an alloy of iron with carbon < 2% (typically < 1% for most grades) + varying amounts of other elements. Cast iron is an alloy of steel with carbon > 2% (typically > 2.5%)

Brake discs are normally grey cast iron - typically 3.5% C. Precise composition and microstructure (distribution and form of graphite in iron matrix)will determine properties, i.e. wear resistance, heat absorption capacity etc ..........

[Kidhaa]

17k miles over 3years and a few track days

Second ones cracked after 3k miles and no track days!!

Guess track days are good for yr brakes

[TonyB66]

Just changed the fronts on my 996 C2 at 36000, just pads on the rear.