Uneven wear with AP Racing Sprint BBK - Page 5 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ATL BRZ · 05-17-2016, 07:31 PM

I've been meaning to update this thread. I just came off a year-long hiatus from track days with the BRZ a few weeks ago at Road Atlanta. I installed a new set of Cobalt XR2's along with the newly released Velox Motorsports brake cooling kit. I used a Beastronix 86Nanny PD to engage the pedal dance with the push of a button every session. My pads and rotors wore evenly all weekend and upon inspection the uneven wear, severe rotor heat checking, pad crumbling and glazing that I had last season are not present. So in conclusion I would attribute my issues to lack of pedal dance and/or proper brake cooling. I'm still very happy with my BBK!!

86ft.lb · 09-05-2016, 10:55 AM

Interesting thread. I didn't realize pedal dance has such a big impact on taper.

I've notice that the difference of average wear between driver and passenger side largely comes from track configuration CW vs CCW. When you drive track windows open, strong external wind blows into cabin from driver or passenger side, depending on the direction of the turn. The same thing for the wheel and brake.

Once I got duct, the relative bias was diminished and I no longer see the wear difference between driver and passenger side. If duct is not an option, running higher temp pad might reduce wear difference that comes from temperature difference (Just a speculation, I haven't verified it myself).

05-17-2016, 07:31 PM	#57
ATL BRZ Driving Coach Join Date: Jun 2012 Drives: BRZ Location: Atlanta Posts: 3,666 Thanks: 3,723 Thanked 4,137 Times in 1,707 Posts Mentioned: 90 Post(s) Tagged: 6 Thread(s)	I've been meaning to update this thread. I just came off a year-long hiatus from track days with the BRZ a few weeks ago at Road Atlanta. I installed a new set of Cobalt XR2's along with the newly released Velox Motorsports brake cooling kit. I used a Beastronix 86Nanny PD to engage the pedal dance with the push of a button every session. My pads and rotors wore evenly all weekend and upon inspection the uneven wear, severe rotor heat checking, pad crumbling and glazing that I had last season are not present. So in conclusion I would attribute my issues to lack of pedal dance and/or proper brake cooling. I'm still very happy with my BBK!! __________________ __________________________Pure Motorsport: JDL Turbo BRZ Track Build_______________________

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09-05-2016, 10:55 AM	#58
86ft.lb Member Join Date: Jul 2012 Drives: orange fr-s MT Location: WA Posts: 23 Thanks: 18 Thanked 16 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Interesting thread. I didn't realize pedal dance has such a big impact on taper. I've notice that the difference of average wear between driver and passenger side largely comes from track configuration CW vs CCW. When you drive track windows open, strong external wind blows into cabin from driver or passenger side, depending on the direction of the turn. The same thing for the wheel and brake. Once I got duct, the relative bias was diminished and I no longer see the wear difference between driver and passenger side. If duct is not an option, running higher temp pad might reduce wear difference that comes from temperature difference (Just a speculation, I haven't verified it myself).

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