Rear Rotor Suggestions? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

iLaw · 10-30-2015, 12:39 PM

So I'm in the midst of planning my brake setup for tracking in the 2016 season (I'm in Canada, so track season is almost done for 2015).

A bit about me: Next year I plan to go to the track far more often than this year. I have a new job that allows a flexible schedule. Ideally, I'd like to go twice a month through spring, summer and fall (~15 sessions in the year).

So far, I have already bought the RR Racing BBK. Now, I'm looking for the rear, and I'm stuck on which rotors to buy. Originally I wanted (and still do want... but) the DBA T3's. But they are really expensive, and since I am only looking to replace the rear rotors (as the front ones came with the BBK), I'm thinking the T3's might be a little overkill.

Some have suggested Stoptech slotted rotors, I've also been looking at the DBA T2's; and now I'm just confused and at a crossroad. The only decision I have really made is I want the rear rotors to be slotted. I'd greatly appreciate any input the community would have.

BatStig · 10-30-2015, 01:10 PM

Is your BBK front only? If so, I have the Essex Sprint kit up front and I have been using a set of OE rotors in the rear. The rears will last forever. I don't see a need for anything fancy back there.

Kodename47 · 10-30-2015, 01:32 PM

Why do you want them to be slotted? I thought these days it's proven that slotted discs don't do much except reduce pad life, or at least the benefits of them are so slight that I would rather that my pads lasted longer.

I'd also suggest just using OEM discs or equivalent solids. Save the £ and invest in pads

churchx · 10-30-2015, 02:07 PM

Slotted ones don't just reduce pad life. You also gain feature of them being easier to crack. Win-win i'd say?

Jokes aside, as for upgrading rears too .. while OE are adequate and long enough lasting, i don't like them being that heavy. Sprints save a lot of weight on fronts, a bit of a pitty they don't have matching in rear to save as much there too ..

wparsons · 10-30-2015, 03:07 PM

Quote:

Originally Posted by churchx

Slotted ones don't just reduce pad life. You also gain feature of them being easier to crack. Win-win i'd say?

Jokes aside, as for upgrading rears too .. while OE are adequate and long enough lasting, i don't like them being that heavy. Sprints save a lot of weight on fronts, a bit of a pitty they don't have matching in rear to save as much there too ..

Slotted won't crack like a drilled rotor will, but slotting does remove thermal mass from the rotor.

IMO, stock or centric blanks for the rears. No point in anything else unless you're doing it purely for the look.

10-30-2015, 12:39 PM	#1
iLaw Senior Member Join Date: Sep 2014 Drives: 2015 BRZ, Aozora Edition Location: Mississauga, ON, Canada Posts: 354 Thanks: 40 Thanked 249 Times in 100 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	Rear Rotor Suggestions? So I'm in the midst of planning my brake setup for tracking in the 2016 season (I'm in Canada, so track season is almost done for 2015). A bit about me: Next year I plan to go to the track far more often than this year. I have a new job that allows a flexible schedule. Ideally, I'd like to go twice a month through spring, summer and fall (~15 sessions in the year). So far, I have already bought the RR Racing BBK. Now, I'm looking for the rear, and I'm stuck on which rotors to buy. Originally I wanted (and still do want... but) the DBA T3's. But they are really expensive, and since I am only looking to replace the rear rotors (as the front ones came with the BBK), I'm thinking the T3's might be a little overkill. Some have suggested Stoptech slotted rotors, I've also been looking at the DBA T2's; and now I'm just confused and at a crossroad. The only decision I have really made is I want the rear rotors to be slotted. I'd greatly appreciate any input the community would have. __________________ iLaw 2020 Subaru Crosstrek Sport 2015 Subaru BRZ Aozora Edition (Sold)

10-30-2015, 01:32 PM	#3
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,629 Times in 1,112 Posts Mentioned: 155 Post(s) Tagged: 1 Thread(s)	Why do you want them to be slotted? I thought these days it's proven that slotted discs don't do much except reduce pad life, or at least the benefits of them are so slight that I would rather that my pads lasted longer. I'd also suggest just using OEM discs or equivalent solids. Save the £ and invest in pads __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

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10-30-2015, 01:10 PM	#2
BatStig Some say..... Join Date: Jun 2012 Drives: 2007 Subaru Impreza 2.5i Location: Kitchener ON Posts: 483 Thanks: 810 Thanked 310 Times in 174 Posts Mentioned: 12 Post(s) Tagged: 2 Thread(s)	Is your BBK front only? If so, I have the Essex Sprint kit up front and I have been using a set of OE rotors in the rear. The rears will last forever. I don't see a need for anything fancy back there.

10-30-2015, 02:07 PM	#4
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,333 Thanks: 696 Thanked 2,085 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Slotted ones don't just reduce pad life. You also gain feature of them being easier to crack. Win-win i'd say? Jokes aside, as for upgrading rears too .. while OE are adequate and long enough lasting, i don't like them being that heavy. Sprints save a lot of weight on fronts, a bit of a pitty they don't have matching in rear to save as much there too ..

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