Do the inside faces of the rotors have the same wear?

Yes

Esp from this last pic, I'd play it safe and say your rotors have ZERO track life left on them. Those micro cracks don't look so micro anymore, and they cover a good amount of the pad's sweep area around the rotor.

The last thing you want is for your rotors to crack when are slamming on the brakes at the end of the straightaway.

@donk - Have you looked into the symptoms of the pad and rotor on other Corvette or track-focused forums?

I ask that because at the Porsche club, a few guys with the 997/991, and GT4s have a similar problem when using a specific brake pad and rotor combo. They took a similar approach where the stock pad and an aftermarket pad was swapped, but among them, they ran the track pad/rotor setup more frequently as it was mainly a track car.

I'm not suggesting this is the cause of your rotor wear, but it's a place to start looking in to.

Similar to Traum's advice, I feel it's best to replace the rotors. This isn't safe anymore.

Noted, il take a look on geezer forums for comparison.

Supercharger is also going in this month, so brakes are gonna need to be braking for sure

Oh, with the supercharger, you'll definitely want to sort out your braking challenge before you hit the track again.

I may have missed this, but which pad and rotor combo are you using for the track and street?

Update: Turns out the brake/rotor combo symptoms for the guys in the local club aren't specific to them only. It appears to be universal where other clubs in the US also experience the same issue with the specific pad/rotor combo. Typical Porsche owner solution - Upgrade to AP Racing caliper, pad, and rotor setup (aka go full stupid.) :pokerface:

(I am not suggesting you do that, but...) :D

Street: carbotech 1521

Track: used track day pads first, then XP10/12s, now SR11, i also have RP-X pads on backup

As for rotors, they are OEM GM "track" rotors. They have 40,000kms on them + 12 track days. So they had good use out of them.

DBA4000 rotors at home ready to be installed

40k and 12 track days on a set of rotors sound like you got good return on investment.

40k km and 12 track days? Yeah those are done lol. That's pretty good performance though

That sounds like a quirk of the rotor or pad design then. Or the rotor I guess. That seems potentially dangerous if someone is checking rotor depth at the outer edge and doesn't notice.

Well, my season ended a while back. I didn't get as much track time as I wanted to this year. August - I had school priorities. September - I had a wedding to go to in Vancouver. October - I got bronchitis the week of the final DE season. :(

Looking forward to a full season in 2026. :)

That makes both of us

:megusta:

You should be going by what the minimum thickness for the rotor is first. The crazing on the rotors is normal, but the fact the slots are wearing off would indicate you are close or below the min. thickness of the rotor.

Just get girodiscs and don't waste money on DBA rotors

Noted on thickness for next set

Girodiscs are about x2 the cost per corner (rotor only), do they last 2X longer?