follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
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 -- Sponsored by 949 Racing

Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-07-2018, 03:19 PM   #15
Ricepuddin
Get a Bowl
 
Ricepuddin's Avatar
 
Join Date: Oct 2009
Drives: 2017 BRZ PP
Location: Honolulu HI
Posts: 936
Thanks: 103
Thanked 364 Times in 211 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by churchx View Post
Maintenance? Yeah. I also was shocked to hear something like overhaul every 1K km.
But then again real rally coilovers DO handle seemingly impossible.
- Robert Kubica Test - Flat out & Max Attack Moments - Test Mc 2015 - - YouTube
Kubica Flat Out at Test Rallye Monte Carlo 2015 - YouTube
I remember reading on special stage or dirally that Maintenance/overhaul can get spendy as well.

Sent from my Pixel XL using Tapatalk
Ricepuddin is offline   Reply With Quote
Old 03-07-2018, 10:06 PM   #16
Yoniyama
Member
 
Join Date: Feb 2014
Drives: FR-S
Location: California
Posts: 92
Thanks: 76
Thanked 42 Times in 24 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
I would be interested in a set of slightly taller springs, provided the spring rates are acceptable.

TRD makes a set of 10mm taller springs, but they too stiff (4.55k front, 5.15k rear) for me.

I am looking for somethings taller (+10mm to 15mm), with spring rates of about 2.5k front and 3.8k rear.

By the way, after installing taller springs, how should be adjust wheel alignment to compensate?
Yoniyama is offline   Reply With Quote
Old 03-07-2018, 11:41 PM   #17
churchx
Senior Member
 
churchx's Avatar
 
Join Date: Mar 2015
Drives: 2014 orange GT86
Location: Latvia, Riga
Posts: 3,420
Thanks: 463
Thanked 1,546 Times in 1,069 Posts
Mentioned: 39 Post(s)
Tagged: 1 Thread(s)
My wild guess that due firmer springs in rear one won't need more camber in front to get more oversteer, so no more usual "by 0.5deg camber more in front".
As for 10mm higher TRD spring .. imho it should be used only together with TRD rally damper, which completes the set. I don't think those springs were made to be used with stock shocks.
churchx is offline   Reply With Quote
Old 03-08-2018, 12:07 AM   #18
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 4,294
Thanks: 2,213
Thanked 5,151 Times in 2,199 Posts
Mentioned: 258 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by norcalpb View Post
If you want someone to demo this springs count me in .

I just got bilstein b6 but I’ve been rocking your tarmac springs for exactly 86k miles.
That's pretty awesome.

Quote:
Originally Posted by Yoniyama View Post
I would be interested in a set of slightly taller springs, provided the spring rates are acceptable.

TRD makes a set of 10mm taller springs, but they too stiff (4.55k front, 5.15k rear) for me.

I am looking for somethings taller (+10mm to 15mm), with spring rates of about 2.5k front and 3.8k rear.

By the way, after installing taller springs, how should be adjust wheel alignment to compensate?
Those TRD rates are quite stiff. We definitely wouldn't be that high.

We weren't planning on going softer than stock. We'll see though.

For alignment you don't need nearly as much negative camber on a loose surface with less grip. You do still need some, and it depends on exactly what type of driving your doing and what your tire choice.

- Andrew
Racecomp Engineering is offline   Reply With Quote
The Following 3 Users Say Thank You to Racecomp Engineering For This Useful Post:
JMon85 (03-10-2018), TeutonicShift89 (05-08-2018), Yoniyama (03-09-2018)
Old 03-08-2018, 12:39 AM   #19
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 4,294
Thanks: 2,213
Thanked 5,151 Times in 2,199 Posts
Mentioned: 258 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
In general, real stage rally dampers don't use a lot of rebound damping. You can see in the Kubica test the tires mostly stay on the road over some serious bumps even while turning and cutting through corners. They extend back down to the surface easily instead of being held up as they would be with lots of rebound.

On the other hand, compression damping can be quite firm. The really good stuff is digressive while adding an extra end of a stroke adjustment, and/or with the right shock piston the very high speed compression damping is tunable independently (I'm not talking about conventional high speed compression damping). The idea being that lots of low speed and digressive blow off like a track coilover is good for control and for soaking up bumps, but you do want extra high speed compression to prevent bottoming and especially if you're taking your WRC car off sweet jumps.

All that is to say that don't expect a WRC level performance from your OEM shocks, but you can still have a really fun time. I would expect Bilstein B6 to do even better.

- Andrew
Racecomp Engineering is offline   Reply With Quote
The Following 4 Users Say Thank You to Racecomp Engineering For This Useful Post:
churchx (03-08-2018), JMon85 (03-10-2018), Ricepuddin (03-08-2018), TeutonicShift89 (05-08-2018)
Old 03-08-2018, 01:40 AM   #20
Spawn_Of_Creation
Human
 
Join Date: Jan 2016
Drives: 2015 BRZ Black
Location: Dallas, TX
Posts: 108
Thanks: 43
Thanked 48 Times in 32 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I'm down. Will the b6's handle the 15mm hight increase without any custom work?
__________________
"Always listen to experts. They'll tell you what can't be done, and why. Then do it." - The Notebooks of Lazarus Long

Last edited by Spawn_Of_Creation; 03-08-2018 at 01:51 AM.
Spawn_Of_Creation is offline   Reply With Quote
Old 03-08-2018, 02:16 AM   #21
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 4,294
Thanks: 2,213
Thanked 5,151 Times in 2,199 Posts
Mentioned: 258 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by Spawn_Of_Creation View Post
I'm down. Will the b6's handle the 15mm hight increase without any custom work?
Yes for sure.

- Andrew
Racecomp Engineering is offline   Reply With Quote
Old 03-08-2018, 03:19 AM   #22
Ricepuddin
Get a Bowl
 
Ricepuddin's Avatar
 
Join Date: Oct 2009
Drives: 2017 BRZ PP
Location: Honolulu HI
Posts: 936
Thanks: 103
Thanked 364 Times in 211 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
From what I am reading, Bilstien makes rally inserts for the HD shocks. This could be an option for those that need something a little more than rally cross but don't need full stage rally setup.
Quote:
Originally Posted by Racecomp Engineering View Post
Yes for sure.

- Andrew
So b6 and spring deal if this happens?

Sent from my Pixel XL using Tapatalk
Ricepuddin is offline   Reply With Quote
Old 03-08-2018, 06:04 AM   #23
churchx
Senior Member
 
churchx's Avatar
 
Join Date: Mar 2015
Drives: 2014 orange GT86
Location: Latvia, Riga
Posts: 3,420
Thanks: 463
Thanked 1,546 Times in 1,069 Posts
Mentioned: 39 Post(s)
Tagged: 1 Thread(s)
Racecomp Engineering: btw, what do you think of designing some simple as possible engine protection plate, that has ski like front side, that would go over lower part of front bumper, and would be simple to mount/unmount (for example some hook like attachment below/rear, single thumbscrew front, to quickly mount it before "starting to have fun" and mount/unmount without having to lift car, when one drives back home on normal roads. It should also simplify going above snow piles, while stock bumper bulldozer shape would tend to dig in). I'm not thinking of some real strong aluminium plate or even CF protection of car & engine with multiple strong attachment points to frame that can held against really heavy hits, as it won't be for real rally/rallycross, just so, slight protection when sliding off track. Otherwise ending with nose in deep snow pile may mean relatively expensive damage to bumper & maybe rad/conditioner heat exchanger (hopefully for non pre-MY2014 car when it was for use with very expensive 1234yf gas), even if speeds were low and "normal cars" would have slide above with near to no damage at all.
churchx is offline   Reply With Quote
Old 03-08-2018, 11:03 AM   #24
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 4,294
Thanks: 2,213
Thanked 5,151 Times in 2,199 Posts
Mentioned: 258 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by Ricepuddin View Post
So b6 and spring deal if this happens?
Yes.

Quote:
Originally Posted by churchx View Post
Racecomp Engineering: btw, what do you think of designing some simple as possible engine protection plate, that has ski like front side, that would go over lower part of front bumper, and would be simple to mount/unmount (for example some hook like attachment below/rear, single thumbscrew front, to quickly mount it before "starting to have fun" and mount/unmount without having to lift car, when one drives back home on normal roads. It should also simplify going above snow piles, while stock bumper bulldozer shape would tend to dig in). I'm not thinking of some real strong aluminium plate or even CF protection of car & engine with multiple strong attachment points to frame that can held against really heavy hits, as it won't be for real rally/rallycross, just so, slight protection when sliding off track. Otherwise ending with nose in deep snow pile may mean relatively expensive damage to bumper & maybe rad/conditioner heat exchanger (hopefully for non pre-MY2014 car when it was for use with very expensive 1234yf gas), even if speeds were low and "normal cars" would have slide above with near to no damage at all.
This would be great, but is outside our area of expertise. There are a couple US shops that do things like this for Impreza but I don't if any have BRZ parts.

- Andrew
Racecomp Engineering is offline   Reply With Quote
Old 03-10-2018, 12:06 AM   #25
Ricepuddin
Get a Bowl
 
Ricepuddin's Avatar
 
Join Date: Oct 2009
Drives: 2017 BRZ PP
Location: Honolulu HI
Posts: 936
Thanks: 103
Thanked 364 Times in 211 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
There has to be more than a handful of people

https://youtu.be/nxxGAkRKPac

Sent from my Pixel XL using Tapatalk
Ricepuddin is offline   Reply With Quote
The Following 2 Users Say Thank You to Ricepuddin For This Useful Post:
Racecomp Engineering (03-10-2018), Spawn_Of_Creation (03-12-2018)
Old 03-10-2018, 08:53 AM   #26
JMon85
Senior Member
 
JMon85's Avatar
 
Join Date: Apr 2017
Drives: 2019 WRX
Location: USA
Posts: 131
Thanks: 418
Thanked 40 Times in 33 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I would love a set of these to beef up my winter setup for the snow here in North Dakota. Still waiting for my yellows to come in and I'm sure I'll love tho too lol
JMon85 is offline   Reply With Quote
The Following User Says Thank You to JMon85 For This Useful Post:
Racecomp Engineering (03-10-2018)
Old 03-10-2018, 11:34 AM   #27
R2
Senior Member
 
Join Date: Nov 2012
Drives: FR-S
Location: Sask., Canada
Posts: 235
Thanks: 76
Thanked 88 Times in 54 Posts
Mentioned: 19 Post(s)
Tagged: 1 Thread(s)
Very interested if the spring rates are on the lower end, or progressive with softer initial displacement.
R2 is offline   Reply With Quote
The Following User Says Thank You to R2 For This Useful Post:
Racecomp Engineering (03-10-2018)
Old 03-17-2018, 07:07 PM   #28
Ricepuddin
Get a Bowl
 
Ricepuddin's Avatar
 
Join Date: Oct 2009
Drives: 2017 BRZ PP
Location: Honolulu HI
Posts: 936
Thanks: 103
Thanked 364 Times in 211 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
100 Acre woods rally is going on today, good day to keep the discussion alive.
another rally picture (not from 100AW)
Ricepuddin is offline   Reply With Quote
The Following 2 Users Say Thank You to Ricepuddin For This Useful Post:
JMon85 (03-17-2018), TeutonicShift89 (05-08-2018)
 
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
Gauging interest for an OEM exhaust in GTA StraightOuttaCanadaEh Canada Classifieds 5 06-08-2017 01:00 PM
Gauging interest in ACE 150- Type B olsonpg Canada Classifieds 3 07-12-2016 07:10 PM
Gauging Interest ISC Suspension Announcements, Contests, Giveaways 17 04-03-2014 09:44 AM
Jdm headlights - gauging interest Hawk77FT Exterior Parts (Aero, Lighting, Etc.) 7 03-31-2014 09:38 AM
Gauging Interest Rear Diffuser SunkenFRS Cosmetic Modification (Interior/Exterior/Lighting) 20 10-07-2013 04:28 AM


All times are GMT -4. The time now is 05:01 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage vBulletin Plugins by Drive Thru Online, Inc.