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

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - 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 06-23-2015, 06:33 AM   #1
Lust
Senior Member
 
Join Date: Jun 2015
Drives: 2017 Subaru BRZ
Location: California Bay Area
Posts: 214
Thanks: 121
Thanked 105 Times in 55 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Ideal Suspension Setup for DD and Mild Track Use?

I've been lurking the forums for a few days and gained quite a bit of information.
My goal is to get a nice modest drop. Not going for a "slammed" look.
Something proper for the track mainly. I am planning to do the suspension with supporting mods, wheels, and tires.
So far I have budgeted myself around 5-6k with parts and labor.
Wheels will be 18x9.5 +38 Work CR Kais and a 1-2 inch drop? I haven't really decided yet. I want to make sure that everything clears and the car handles well with the new wheels and drop.

This is what I plan on getting

RCE Tarmac Zero Coilover
SPL LCA
SPC Camber Bolts
Whiteline Rear Toe Arms

If there is anything I am missing or if anyone has input please let me know! Yes, I am a complete noob

Last edited by Lust; 06-24-2015 at 12:18 AM.
Lust is offline   Reply With Quote
The Following User Says Thank You to Lust For This Useful Post:
IBill4You (06-23-2015)
Old 06-23-2015, 07:53 AM   #2
Captain Snooze
Because compromise ®
 
Captain Snooze's Avatar
 
Join Date: Jan 2012
Drives: Red Herring
Location: australia
Posts: 7,685
Thanks: 3,967
Thanked 9,235 Times in 4,098 Posts
Mentioned: 60 Post(s)
Tagged: 0 Thread(s)
I am suggesting 18x9.5 wheels are too big for performance. Totally different if you are just going that way for aesthetics. Heavier, more angular momentum, too much rubber. From memory @CSG Mike said that 225 tires were the best compromise for these cars. I shall endeavor to find his post.
__________________
My car is completely stock except for all the mods.

Captain Snooze is offline   Reply With Quote
The Following User Says Thank You to Captain Snooze For This Useful Post:
Rio (06-25-2015)
Old 06-23-2015, 10:23 AM   #3
OkieSnuffBox
Senior Member
 
Join Date: Aug 2014
Drives: '23 BRZ Limited
Location: OKC, OK
Posts: 1,974
Thanks: 658
Thanked 1,226 Times in 699 Posts
Mentioned: 9 Post(s)
Tagged: 1 Thread(s)
I'd skip the camber bolts and just go with Race Eng camber plates.
OkieSnuffBox is offline   Reply With Quote
Old 06-23-2015, 11:18 AM   #4
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 5,363
Thanks: 3,386
Thanked 7,200 Times in 2,942 Posts
Mentioned: 301 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by OkieSnuffBox View Post
I'd skip the camber bolts and just go with Race Eng camber plates.
You can skip both actually, the front of the T0's are slotted and you can get a decent amount of camber without them. Around -2.2 or so which is good for DD/mildtrack. You won't need the toe arms, the SPC arms come with an offset toe adjuster thing.

I agree 18x9.5s are pretty darn big and won't help. I recommend 8 to 9 inch wide wheels depending on the car and application.

The rest looks good to me. Your type of usage is what we had in mind with T0s and there are a lot of happy drivers out there utilizing them.

- Andy
Racecomp Engineering is offline   Reply With Quote
The Following 2 Users Say Thank You to Racecomp Engineering For This Useful Post:
8R6 (06-23-2015), Lust (06-24-2015)
Old 06-23-2015, 12:01 PM   #5
nikitopo
Senior Member
 
nikitopo's Avatar
 
Join Date: Mar 2014
Drives: '15 BRZ RA
Location: Greece
Posts: 3,787
Thanks: 2,416
Thanked 1,943 Times in 1,260 Posts
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
A wheel with 9.5 inch width is too big for track use. It'll make the car too heavy. Only if you go with forced induction. As mentioned earlier, a 7 - 7.5 inch width is the best compromise you can have in this car. Personally, I prefer more the 7 inch wheels. For DD use you can do whatever you like, but again a large unsprung weight will be too much for the rest of the OEM parts.
nikitopo is offline   Reply With Quote
Old 06-23-2015, 12:43 PM   #6
Kotu100
Senior Member
 
Kotu100's Avatar
 
Join Date: Mar 2014
Drives: Supra, 2014 BRZ
Location: Stoughton, MA
Posts: 327
Thanks: 241
Thanked 192 Times in 82 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Have you looked at the RSR i-sport coilovers? Pretty much the same price point and they're supossed to ride real nice on the street.
I have the i-black and they're super comfy. I've had a couple people even say it feels like stock.

Just a suggestion, wish i could give you some track feedback but i havent been yet.
Good luck with your decision.
Kotu100 is offline   Reply With Quote
Old 06-23-2015, 02:03 PM   #7
Lust
Senior Member
 
Join Date: Jun 2015
Drives: 2017 Subaru BRZ
Location: California Bay Area
Posts: 214
Thanks: 121
Thanked 105 Times in 55 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Captain Snooze View Post
I am suggesting 18x9.5 wheels are too big for performance. Totally different if you are just going that way for aesthetics. Heavier, more angular momentum, too much rubber. From memory @CSG Mike said that 225 tires were the best compromise for these cars. I shall endeavor to find his post.
Going with that size wheel was more of an aesthetics choice and planning for future forced induction. Still too big?

Quote:
Originally Posted by Racecomp Engineering View Post
You can skip both actually, the front of the T0's are slotted and you can get a decent amount of camber without them. Around -2.2 or so which is good for DD/mildtrack. You won't need the toe arms, the SPC arms come with an offset toe adjuster thing.

I agree 18x9.5s are pretty darn big and won't help. I recommend 8 to 9 inch wide wheels depending on the car and application.

The rest looks good to me. Your type of usage is what we had in mind with T0s and there are a lot of happy drivers out there utilizing them.

- Andy
That's really good info, thanks. Are you sure the SPL LCA comes with the toe adjuster? I know that the SPC does but I opted to go with SPL. For my intended use, will I see a benefit of going with the SPL LCA or just going with the cheaper SPC LCA?

Quote:
Originally Posted by nikitopo View Post
A wheel with 9.5 inch width is too big for track use. It'll make the car too heavy. Only if you go with forced induction. As mentioned earlier, a 7 - 7.5 inch width is the best compromise you can have in this car. Personally, I prefer more the 7 inch wheels. For DD use you can do whatever you like, but again a large unsprung weight will be too much for the rest of the OEM parts.
7 inch just seems so thin. In my opinion the car was meant to have some meaty tires and wider wheels. I do plan on doing for forced induction in the future. For the most part it will be daily driven and maybe some spirited driving on the weekends. The car will be tracked ever so lightly as I get more experienced and find time.
Lust is offline   Reply With Quote
Old 06-23-2015, 02:22 PM   #8
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 5,363
Thanks: 3,386
Thanked 7,200 Times in 2,942 Posts
Mentioned: 301 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by Lust View Post
Going with that size wheel was more of an aesthetics choice and planning for future forced induction. Still too big?
IMO yes. You do feel a difference with heavy wheels in all aspects of driving beyond just going and stopping. More unsprung weight means the wheel has more momentum upwards after hitting a bump and more compression damping is needed to control that.

Also important to remember that tire compound is much more important than just tire width. Unless you're adding gobs of power (more than most FI kits), 9.5 inch wheels just aren't worth it. And they're a lot less fun (seriously).

Also if you're new to the track, it's usually not recommended to start with super wide sticky tires...they cover up mistakes and you don't learn as much.

Quote:
Originally Posted by Lust View Post
That's really good info, thanks. Are you sure the SPL LCA comes with the toe adjuster? I know that the SPC does but I opted to go with SPL. For my intended use, will I see a benefit of going with the SPL LCA or just going with the cheaper SPC LCA?
Sorry, for some reason I read SPC instead of SPL. The SPC part gets the job done, but the SPL pieces are very nice.

- Andy
Racecomp Engineering is offline   Reply With Quote
The Following User Says Thank You to Racecomp Engineering For This Useful Post:
wparsons (06-23-2015)
Old 06-23-2015, 02:46 PM   #9
Lust
Senior Member
 
Join Date: Jun 2015
Drives: 2017 Subaru BRZ
Location: California Bay Area
Posts: 214
Thanks: 121
Thanked 105 Times in 55 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Racecomp Engineering View Post
IMO yes. You do feel a difference with heavy wheels in all aspects of driving beyond just going and stopping. More unsprung weight means the wheel has more momentum upwards after hitting a bump and more compression damping is needed to control that.

Also important to remember that tire compound is much more important than just tire width. Unless you're adding gobs of power (more than most FI kits), 9.5 inch wheels just aren't worth it. And they're a lot less fun (seriously).

Also if you're new to the track, it's usually not recommended to start with super wide sticky tires...they cover up mistakes and you don't learn as much.



Sorry, for some reason I read SPC instead of SPL. The SPC part gets the job done, but the SPL pieces are very nice.

- Andy
Hmmm okay. Do you think having 18x9.5 as more of a DD/show wheel then have another set of lightweight 17x9 wheels be a suitable option or would you not even DD a 18x9.5 wheel. I just like the look of the 18x9.5s so much lol
Lust is offline   Reply With Quote
Old 06-23-2015, 03:15 PM   #10
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
Location: Severn, MD
Posts: 5,363
Thanks: 3,386
Thanked 7,200 Times in 2,942 Posts
Mentioned: 301 Post(s)
Tagged: 9 Thread(s)
Send a message via AIM to Racecomp Engineering
Quote:
Originally Posted by Lust View Post
Hmmm okay. Do you think having 18x9.5 as more of a DD/show wheel then have another set of lightweight 17x9 wheels be a suitable option or would you not even DD a 18x9.5 wheel. I just like the look of the 18x9.5s so much lol
Separate wheels for the track isn't a bad idea at all (same with separate brake pads). For DD you can do as you like...it will ride and handle a little worse but that's up to you if you're okay with the trade-off.

8.5's might be better for the track for you, or even 8's...but if it's a quality lightweight wheel then 9 inch width isn't too bad (it'll be expensive though). For auto-x the 9 is the way to go.

- Andy
Racecomp Engineering is offline   Reply With Quote
Old 06-23-2015, 04:02 PM   #11
Lust
Senior Member
 
Join Date: Jun 2015
Drives: 2017 Subaru BRZ
Location: California Bay Area
Posts: 214
Thanks: 121
Thanked 105 Times in 55 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Racecomp Engineering View Post
Separate wheels for the track isn't a bad idea at all (same with separate brake pads). For DD you can do as you like...it will ride and handle a little worse but that's up to you if you're okay with the trade-off.

8.5's might be better for the track for you, or even 8's...but if it's a quality lightweight wheel then 9 inch width isn't too bad (it'll be expensive though). For auto-x the 9 is the way to go.

- Andy
Oh boy the decisions... Just to clarify one last time, will I need the toe kit? If so, what do you recommend?
Lust is offline   Reply With Quote
Old 06-23-2015, 04:19 PM   #12
86_Insider
 
86_Insider's Avatar
 
Join Date: Jul 2013
Drives: 2013 FR-S
Location: Las Vegas
Posts: 234
Thanks: 327
Thanked 82 Times in 53 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Depending on how much track time you are going to see it can be really nice to have a dedicated set. It can be more $$ up front, but in the long run you save your better tires for the track and don't burn them up daily.

Tons of suspension options out there with different options at different price points. Not sure if you plan on doing more auto X or track days, but that would adjust my choice possibly based on springs rates.

A toe kit will really depend on how low you go. It is always nice to have the extra adjustments for alignment purposes though.
86_Insider is offline   Reply With Quote
Old 06-23-2015, 06:23 PM   #13
CSG Mike
 
CSG Mike's Avatar
 
Join Date: Jul 2012
Drives: S2000 CR
Location: Orange County
Posts: 14,515
Thanks: 8,909
Thanked 14,161 Times in 6,826 Posts
Mentioned: 966 Post(s)
Tagged: 14 Thread(s)
Quote:
Originally Posted by Captain Snooze View Post
I am suggesting 18x9.5 wheels are too big for performance. Totally different if you are just going that way for aesthetics. Heavier, more angular momentum, too much rubber. From memory @CSG Mike said that 225 tires were the best compromise for these cars. I shall endeavor to find his post.
Unless you have a LOT of power, or are exclusively running (cornering) grip limited venues/roads, wider wheels generally do not help.
CSG Mike is offline   Reply With Quote
Old 06-23-2015, 07:05 PM   #14
Lust
Senior Member
 
Join Date: Jun 2015
Drives: 2017 Subaru BRZ
Location: California Bay Area
Posts: 214
Thanks: 121
Thanked 105 Times in 55 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by CSG Mike View Post
Unless you have a LOT of power, or are exclusively running (cornering) grip limited venues/roads, wider wheels generally do not help.
How much power would deem 18x9.5 necessary? I plan to slowly build up the motor with an end result of probably 350+ whp
Lust 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
Ideal Exhaust setup cjcoupe AUSTRALIA 4 02-07-2014 08:40 AM
Ideal ride height for best suspension geometry? Hachi86Roku Tracking / Autocross / HPDE / Drifting 8 11-19-2013 08:46 AM
Different Suspension setup on BRZ? Trmx2 Suspension | Chassis | Brakes -- Sponsored by 949 Racing 1 11-13-2013 09:36 PM
setup of suspension jdzumwalt Suspension | Chassis | Brakes -- Sponsored by 949 Racing 5 11-21-2012 04:03 PM
Ideal CCW specs for street with occasional track bambbrose Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 13 12-11-2011 04:12 PM


All times are GMT -4. The time now is 11:27 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.