follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
RR Racing
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB > Technical Topics > Suspension | Chassis | Brakes

Suspension | Chassis | Brakes Relating to suspension, chassis, and brakes.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-02-2014, 07:29 AM   #1
himbo
Senior Member
 
Join Date: Mar 2010
Drives: Lightening Red BRZ Ltd.
Location: North Jersey Mutha Luva!!!
Posts: 207
Thanks: 63
Thanked 60 Times in 35 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Lightweight REAR rotor options

I know there is the P&L lightweight rear brake upgrade as well as various lighter weight BBK kits. However, the P&L kit is hardly streetable while the BBK's are overkill IMO. I think the best compromise is installing lighter rotors for the rear. Problem is, I can't find anyone who seems to make them. I think knocking off a 2-3lbs per disc can have very noticeable effects to handling, braking, and accelerating.

Anyone wanna chime in? Some simple stock-sized, slotted rotors could do the trick. Maybe something with an aluminum hat?

Thanks in advance!
himbo is offline   Reply With Quote
Old 04-02-2014, 08:48 AM   #2
JerryMichaels7
Senior Member
 
Join Date: Mar 2013
Drives: Whiteout FRS
Location: South, Ga
Posts: 348
Thanks: 19
Thanked 144 Times in 80 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
What makes the P&l not streetable?? Deletes e-brake?
__________________
life's greatest stories usually start with the words, "fuck it!".
JerryMichaels7 is offline   Reply With Quote
Old 04-02-2014, 09:10 AM   #3
himbo
Senior Member
 
Join Date: Mar 2010
Drives: Lightening Red BRZ Ltd.
Location: North Jersey Mutha Luva!!!
Posts: 207
Thanks: 63
Thanked 60 Times in 35 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
OTE=JerryMichaels7;1643395]What makes the P&l not streetable?? Deletes e-brake?[/QUOTE]

Yeah for me streetable means ebrake. I know different people have different definitions of streetable, but that's where I draw the line.

I just think that a slightly lighter disc would be more than adequate and cost effective.
himbo is offline   Reply With Quote
Old 04-02-2014, 09:16 AM   #4
ZionsWrath
Thanks
 
ZionsWrath's Avatar
 
Join Date: Apr 2013
Drives: BRZ
Location: NY
Posts: 3,846
Thanks: 5,790
Thanked 2,873 Times in 1,381 Posts
Mentioned: 33 Post(s)
Tagged: 3 Thread(s)
My guess is something like that would be so niche, the cost would be halfway to a rear BBK.
ZionsWrath is offline   Reply With Quote
Old 04-02-2014, 09:29 AM   #5
himbo
Senior Member
 
Join Date: Mar 2010
Drives: Lightening Red BRZ Ltd.
Location: North Jersey Mutha Luva!!!
Posts: 207
Thanks: 63
Thanked 60 Times in 35 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
How so? There are lots of slotted or drilled rotors out there. Lots with aluminum hats. I'm just wondering if anyone makes them in the stock size. I'm not looking for ultra lightweight rotors. Just a slight and rather basic upgrade. Coupled with some SS lines and decent pads, a slightly lighter disc would make a noticeable difference in my opinion.
himbo is offline   Reply With Quote
Old 04-02-2014, 09:55 AM   #6
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 5,853
Thanks: 5,922
Thanked 2,744 Times in 1,773 Posts
Mentioned: 87 Post(s)
Tagged: 1 Thread(s)
Garage
I don't think you'll ever find a two piece rotor with an aluminum hat that retains the stock e-brake functionality...
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak...
flickr
wparsons is offline   Reply With Quote
The Following 2 Users Say Thank You to wparsons For This Useful Post:
Scooby South (05-19-2014), ZionsWrath (04-02-2014)
Old 04-02-2014, 11:23 AM   #7
himbo
Senior Member
 
Join Date: Mar 2010
Drives: Lightening Red BRZ Ltd.
Location: North Jersey Mutha Luva!!!
Posts: 207
Thanks: 63
Thanked 60 Times in 35 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Why is that? The drum is still there right? Isn't this just a matter of replacing discs?
himbo is offline   Reply With Quote
Old 04-02-2014, 12:17 PM   #8
mines13
 
mines13's Avatar
 
Join Date: Nov 2011
Drives: '13 FR-S '12 CBR1000RR
Location: Irvine, CA
Posts: 1,038
Thanks: 305
Thanked 526 Times in 240 Posts
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Send a message via AIM to mines13 Send a message via Yahoo to mines13
Quote:
Originally Posted by wparsons View Post
I don't think you'll ever find a two piece rotor with an aluminum hat that retains the stock e-brake functionality...

I wouldn't rule it out. They certainly exist for other applications, I've installed the Wilwood and the Stoptech setups on 350Z's in a past life. Here is an example for the Stoptech rear rotor for the 350Z. It integrates the drum inside the aluminum hat. They do state that you should absolutely not use the e-brake for anything other then parking however. Perhaps Stoptech builds one for our car since they offer it for other vehicles with a similar e-brake configuration?

mines13 is offline   Reply With Quote
The Following 2 Users Say Thank You to mines13 For This Useful Post:
himbo (04-02-2014), Shankenstein (04-04-2014)
Old 04-02-2014, 12:32 PM   #9
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 5,853
Thanks: 5,922
Thanked 2,744 Times in 1,773 Posts
Mentioned: 87 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by himbo View Post
Why is that? The drum is still there right? Isn't this just a matter of replacing discs?
The drum is part of the stock disc...
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak...
flickr
wparsons is offline   Reply With Quote
The Following User Says Thank You to wparsons For This Useful Post:
himbo (04-02-2014)
Old 04-02-2014, 12:59 PM   #10
CSG David
FT86Club Official Vendor
 
CSG David's Avatar
 
Join Date: Aug 2012
Drives: S2000 CR
Location: California
Posts: 2,089
Thanks: 529
Thanked 1,681 Times in 940 Posts
Mentioned: 166 Post(s)
Tagged: 3 Thread(s)
Would be interesting, but haven't seen anybody actually benefit with it. On paper and in theory, it should benefit performance, but the reality is it requires a trade-off that I'm not willing to take. Oh look, super fast acceleration from 0 to 20mph.
CSG David is offline   Reply With Quote
The Following User Says Thank You to CSG David For This Useful Post:
wparsons (04-02-2014)
Old 04-02-2014, 01:16 PM   #11
Black Tire
Senior Member
 
Black Tire's Avatar
 
Join Date: Jun 2012
Drives: Whiteout Scion FR-S
Location: Minnesota
Posts: 504
Thanks: 367
Thanked 205 Times in 128 Posts
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by mines13 View Post
I wouldn't rule it out. They certainly exist for other applications, I've installed the Wilwood and the Stoptech setups on 350Z's in a past life. Here is an example for the Stoptech rear rotor for the 350Z. It integrates the drum inside the aluminum hat. They do state that you should absolutely not use the e-brake for anything other then parking however. Perhaps Stoptech builds one for our car since they offer it for other vehicles with a similar e-brake configuration?

I am intrigued by this question as well. I haven't seen any great solutions. The one in the above picture with the aluminum hat/drum may actually work for an emergency stop, ONCE. After that you will probably need a new rotor and possible some new brake shoes and/or other parts if the aluminum has melted. Good luck trying to drive home if the shoes fuse to the drums.
__________________
My cars always dress formally. They all wear black tires.

Black Tire is offline   Reply With Quote
Old 04-02-2014, 01:45 PM   #12
CSG David
FT86Club Official Vendor
 
CSG David's Avatar
 
Join Date: Aug 2012
Drives: S2000 CR
Location: California
Posts: 2,089
Thanks: 529
Thanked 1,681 Times in 940 Posts
Mentioned: 166 Post(s)
Tagged: 3 Thread(s)
Quote:
Originally Posted by Black Tire View Post
I am intrigued by this question as well. I haven't seen any great solutions. The one in the above picture with the aluminum hat/drum may actually work for an emergency stop, ONCE. After that you will probably need a new rotor and possible some new brake shoes and/or other parts if the aluminum has melted. Good luck trying to drive home if the shoes fuse to the drums.
The easiest example that comes to mind is Robispec. He used 4lb rear rotors. He would snap them literally almost every session. Then he used 7lb rear rotors...it would last 1 to 2 full days. Keep in mind, his car is like 400lbs lighter than all of our cars...
CSG David is offline   Reply With Quote
Old 04-02-2014, 02:54 PM   #13
himbo
Senior Member
 
Join Date: Mar 2010
Drives: Lightening Red BRZ Ltd.
Location: North Jersey Mutha Luva!!!
Posts: 207
Thanks: 63
Thanked 60 Times in 35 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by wparsons View Post
The drum is part of the stock disc...
Aha! That explains it. Haven't actually seen the pics of the rear disc. I always thought the drum was seperated from the disc. Damn. That sucks
himbo is offline   Reply With Quote
Old 04-02-2014, 03:03 PM   #14
JerryMichaels7
Senior Member
 
Join Date: Mar 2013
Drives: Whiteout FRS
Location: South, Ga
Posts: 348
Thanks: 19
Thanked 144 Times in 80 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
I agree with you OP. Just wasn't for sure if they did delete e brakes or not.
__________________
life's greatest stories usually start with the words, "fuck it!".
JerryMichaels7 is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
P&L STI Lightweight rear brake kit diss7 Suspension | Chassis | Brakes 57 05-31-2017 08:26 PM
Was tapped on rear bumper, options? drewbot CANADA 9 10-25-2013 12:13 PM
Aftermarket options for fixing up rear fender body edocura Cosmetic Modification (Interior/Exterior/Lighting) 1 08-13-2013 06:20 PM
Got rear ended on Saturday night. What are my options? Demotic Scion FR-S / Toyota 86 GT86 General Forum 25 07-16-2013 05:36 PM
Rear camber adjustment options? zooki Suspension | Chassis | Brakes 24 09-12-2012 10:46 AM


All times are GMT -4. The time now is 04:35 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Garage vBulletin Plugins by Drive Thru Online, Inc.