AP Racing "Sprint" BBK long term update - Page 7 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

churchx · 12-07-2015, 12:41 AM

Cybmx: sprint has different sized pads (for example - much thicker). As sprint front BBK is braking bias-matched to stock rears, imho better to install same compound pads on all corners, - stock sized in rear, - this kit sized in front. You may use different compound pads in rear, but it will certainly change brake bias, so imho better not. As it's mostly front that does most of braking, rear pads need to be exchanged way less often. For fronts you'll really enjoy cheaper pad prices and thickness of chosen pad sizing that will let pads last longer.

Cybmx · 12-07-2015, 11:44 AM

Quote:

Originally Posted by CSG Mike

You should be using the same pad compound front and rear. We have plenty of options

Quote:

Originally Posted by churchx

Cybmx: sprint has different sized pads (for example - much thicker). As sprint front BBK is braking bias-matched to stock rears, imho better to install same compound pads on all corners, - stock sized in rear, - this kit sized in front. You may use different compound pads in rear, but it will certainly change brake bias, so imho better not. As it's mostly front that does most of braking, rear pads need to be exchanged way less often. For fronts you'll really enjoy cheaper pad prices and thickness of chosen pad sizing that will let pads last longer.

Thanks guys. I have the sprint kit with a few set of AP c300 pads, where should I go to purchase the matching pads for the rears?

CSG Mike · 12-07-2015, 01:12 PM

Quote:

Originally Posted by Cybmx

Thanks guys. I have the sprint kit with a few set of AP c300 pads, where should I go to purchase the matching pads for the rears?

Unfortunately that compound is not available in a FRS/BRZ oem rear...

Cybmx · 12-07-2015, 02:49 PM

Quote:

Originally Posted by CSG Mike

Unfortunately that compound is not available in a FRS/BRZ oem rear...

Would you be able to recommend me an alternative? Thanks a whole bunch.

CSG Mike · 12-07-2015, 07:14 PM

Quote:

Originally Posted by Cybmx

Would you be able to recommend me an alternative? Thanks a whole bunch.

Unfortunately I'm not aware of any compounds that are directly comparable to the C300 that could be used as an alternative in the rear.

The Carbotech RP2 is somewhat similar, but has a bit more bite.

1Cor10:23 · 06-18-2016, 05:42 PM

@CSG Mike @JRitt do you guys find that the caliper grabs the rotors pretty hard on fresh pads? I've done one track day on a new set of ds1.11 and my alignment guy (who races) made a comment that my fronts might need a rebuild given how tight they were grabbing and that the piston seals might be cooked. I'm skeptical since I've only really done perhaps 6 track days on the brakes... Although they were tough to push in when swapping the new pads in

Sent from my SM-N920W8 using Tapatalk

CSG Mike · 06-18-2016, 11:58 PM

Quote:

Originally Posted by 1Cor10:23

@CSG Mike @JRitt do you guys find that the caliper grabs the rotors pretty hard on fresh pads? I've done one track day on a new set of ds1.11 and my alignment guy (who races) made a comment that my fronts might need a rebuild given how tight they were grabbing and that the piston seals might be cooked. I'm skeptical since I've only really done perhaps 6 track days on the brakes... Although they were tough to push in when swapping the new pads in

Sent from my SM-N920W8 using Tapatalk

It's unlikely but possible, depending on your operating conditions.

For the guys that drive the car year round and weekend warrior the car, I usually recommend servicing the calipers once a year.

06-18-2016, 05:42 PM	#90
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	@CSG Mike @JRitt do you guys find that the caliper grabs the rotors pretty hard on fresh pads? I've done one track day on a new set of ds1.11 and my alignment guy (who races) made a comment that my fronts might need a rebuild given how tight they were grabbing and that the piston seals might be cooked. I'm skeptical since I've only really done perhaps 6 track days on the brakes... Although they were tough to push in when swapping the new pads in Sent from my SM-N920W8 using Tapatalk __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\|

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12-07-2015, 12:41 AM	#85
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,333 Thanks: 696 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Cybmx: sprint has different sized pads (for example - much thicker). As sprint front BBK is braking bias-matched to stock rears, imho better to install same compound pads on all corners, - stock sized in rear, - this kit sized in front. You may use different compound pads in rear, but it will certainly change brake bias, so imho better not. As it's mostly front that does most of braking, rear pads need to be exchanged way less often. For fronts you'll really enjoy cheaper pad prices and thickness of chosen pad sizing that will let pads last longer.

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