Brake Rotor wear and slight scoring HPDE

Rangerz

I did some searching and their seems to be some debate on resurfacing rotors. I have run 6 track days this year on the OEM rotors and EBC yellow stuff pads. The pads have 3/8 to a 1/4 " of material still left and will need to be upgraded after my next event 6/29. Both my front rotors are showing slight groves on the contact area so not sure if I should bother resurfacing them or continue to run them. Both discs are 1.26" thick = 32mm.

I posted this here because I think the track guys will have encountered this more often than anyone else.

The grooves are smooth edged and probably .005-.015 in depth. That,s a swag measurement I don't have needle tipped micrometer for getting down in the groove.

So what would you do? I planned on the Z1 2 piece rotors but, wanted to get through the year on the stockers.

Here is a pic of the front passenger side disc hopefully you can see enough detail.

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Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

cossie1600

Looks fine to me, have seen much worse

andy_meng1024

I had 3 track days with OEM rotors and DS2500 then the rotors started to shake when hard braking. I switched to Carbotech XP24 front and XP20 rear pads then resurfacing is now unnecessary. My tech said the compound of these pads are so hard they grind the rotors smooth, lol. I have Z1 rotors waiting whenever these OEMs are done.

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Rusty

My Yellowstuffs did the samething on my RacingBrake rotors. No problem with it.

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thompsontechs

Looks perfect... no worries mate!

Rangerz

Thanks for the feed back guys.

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Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

Rangerz

Racing Break rotors are $$$$ looked at the 2 pc ones on the web site.

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Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

synolimit

Dear lord!

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BuckeyeZ

I don't think you need to resurface. My YellowStuffs did the same thing. I don't think this is a brake pad issue....it's just the nature of using a more aggressive pad.

You need to 'bed' the pads in. The rotors will quickly cut a matching groove in the pad. I have no issues with mine and I swap back-and-forth between EBC for track and my OEM pads for street driving and bed each time without issue.

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ENT-Z

Agreed!! I didn't even know they made them in that aggressive of a number. I run XP10 front and XP8 rear and they are plenty aggressive for high performance street tires. Even on full slicks I don't think you would need to run that aggressive of a pad??