gan1hck

I'm tracking my 991.1 with GiroDiscs and DS1.11 pads.

I was wondering when I should change my pads?

Run them all the way to the back plating...or change them earlier?

When I had my M3 with PFC08s, I would change them when the pad thickness was a little thinner than the back plating.

What do you guys do?

thanks in advance.

Palting

LOL. I guess you can wait until sparks starts to fly out.

I used the Ferodo DS1.11 on my prior track toy, and plan to use them again with the GT3 next time I need to change pads. When the pads are as thick as the backing plate is about as close as I want to go before replacing them.

IPSA

The guy that works on my cars is an LMP 2 and 3 mechanic and I use 1.11 s. He starts bugging me at anything below 5 mm because of heat transfer issues on thin pads.

gan1hck

thanks...that's the info that I was looking for!

GeoJoe

The last 20% seems to go much faster than the first 80%. I don't skimp on pads. It's not how fast you can go, it's how fast you can stop.

gan1hck

totally agree

golfnutintib

i stop once the visible pad goes noticeably below 50%

MaxLTV

Very good pads - gentle on rotors, don't taper, and are not grabby - easy to modulate. The only drawback I've noticed so far is that after driving in the rain or having car parked for a while, they get super-slippery because of a layer of some kind of oxidation or corrosion on them. Also, I had one set with about 50% left crumble on me. That coincided with driving in the rain for 6 track days in a row over the course of 5 months (winter 2016-2017 in California), so maybe connected to their corrosion but maybe a coincidence.

orthojoe

Once I see the pad is the thickness of the backing plate, I do one more track day and then change them

gan1hck

thanks for info....do you mean a single track day or a track weekend?

I drive mostly Barber Motorsports, which is I think a little easier on brakes than leguna seca (shorter straights).

orthojoe

Single track day. You might be able to get away with a full weekend if the track is easy on the brakes, but keep a close eye

gan1hck

joe,

thanks for info....I've probably been changing pads too early for fear of running out in the middle of a weekend...boiling fluid...and god knows how many other reasons.

chi

orthojoe

Just keep a close eye and make sure to check both top and bottom of the pad in case there is tapering, but ds1.11 usually don't taper. I remember once not checking close enough and ended up wearing into the backing plate, which was a surprise coming down the back straight at thill going into the braking zone for t14.

CDinSing

gan1hck