robrob

After 2 1/2 years of track use I finally cracked one of my RacingBrake.com's Accord/NSX "Track Duty" rotors. The failure mode was exactly like my last crack back in 2009. A small crack made it through the outside edge and I started to pick up a mild vibration under braking. I've been using the Carbotech "Endurance" pads for the last year and they're very hard on rotors--very similar to the abrasive Carrbotech XP12. I think I could have gotten a lot more life from the rotors if I had stuck with XP10s.

The 2009 crack--the 2013 crack looks exactly the same.



While on the phone with Warren of RacingBrake ordering the replacement rings (I'm going with plain, non-slotted this time) he talked me into trying a set of their XT970 pads made for dedicated track cars. Has anyone tried these pads? RacingBrake rotors are so amazing I figure they should know how to pair their rotors with pads. They also make the XT960 for guys that drive their track car to the track and the XT910 for street cars.

I'll review the XT970s after I get a few events under my belt with them.

papdoc

We will wait for your impressions Rob. A question: is there a reason for abandoning the open slot design? I will soon order the replacement rings for my setup, so I would appreciate your opinion.

robrob

I just thought I'd give them a try. Neither of the two cracks propagated from a slot so it's not really a longevity or strength issue. My first set was the shallow slot, the second set was the open slot (cut completely through the disc) so I'll try the third option.