talon720
Member
Hi guys, I used XT970 front / XT910 rear in my Model 3 (dual motor, not performance ) at a track day back in December and have a couple questions. See the first two photos after two 25-minute sessions - can anyone explain the irregular spots on the front rotors, and the non-uniform circular pattern on the rears? I have the RB Model S kit that has 355mm model S rotors and calipers up front, stock calipers in the rear. This was at COTA which has a straight where I reached 120-130mph and braked to about 40mph - I braked hard but not as hard as I could have, since I was new to the track and didn't want to push it the first time out on the new brakes.
For the front spots, I suspect this is because the pads weren't fully bedded in - what do you think? Before the track day I followed the RB bedding procedure, but it seemed much less aggressive than I've done in the past (8-10 hard brakings from 60mph down to 20mph, as Dave Zeckhausen recommends here: You are being redirected...).
Here is the RB bedding procedure for reference:
I have a track day this week, so I'm going to try the Zeckhausen bedding procedure and see how it goes.
What do you think about the rear pattern? This is consistent on both sides of the car.
For the front spots, I suspect this is because the pads weren't fully bedded in - what do you think? Before the track day I followed the RB bedding procedure, but it seemed much less aggressive than I've done in the past (8-10 hard brakings from 60mph down to 20mph, as Dave Zeckhausen recommends here: You are being redirected...).
Here is the RB bedding procedure for reference:
- Make 6 to 8 brakings from approx. 30-35 mph. Do not go below 25 mph.
- Make an additional 3 to 4 hard brakings from approx. 50-55 mph. Do not go below 40 mph.
I have a track day this week, so I'm going to try the Zeckhausen bedding procedure and see how it goes.
What do you think about the rear pattern? This is consistent on both sides of the car.