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   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 04-10-2019, 12:07 PM   #1
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Expected Negative Camber / Toe for 1 in Drop

About to install a set of TRD / Eibach Pro springs on a '18 PP. Is there a ball park negative camber for front / rear I might expect from those that have done similar? The drop should be close to 1 inch from what I understand. I don't mind running 1-2 degrees negative since I autocross this car about once a month. I think I'll be okay from what I've seen for just an inch, but I had trouble pin pointing the answer. Also should I expect any toe in? Either way, I'll have the alignment checked and adjusted. I just want to have some camber bolts or LC arms in hand for that if they'll be needed. Thanks for the assist.
pogofx is offline   Reply With Quote
Old 04-10-2019, 01:49 PM   #2
maslin
Benz Tech
 
Join Date: Dec 2018
Drives: 2017 BRZ Premium
Location: Oregon
Posts: 580
Thanks: 363
Thanked 562 Times in 308 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
My '17 is lowered on Eibach Pro. Toe will of course be off. Front camber doesn't really change, MacPherson struts in the front.

Rear camber will be way out, mine was -3/-2.5 degrees. Visibly bad. Moog LCAs and it's all dialed in, I did not need to install the offset rear toe bushings. SPC front camber bolts as well.

See my thread here, exact same situation.

https://www.ft86club.com/forums/showthread.php?t=132421

Before and after. Specs are in degrees and minutes, not decimals.
Attached Images
  
maslin is offline   Reply With Quote
Old 04-10-2019, 02:08 PM   #3
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by maslin View Post
My '17 is lowered on Eibach Pro. Toe will of course be off. Front camber doesn't really change, MacPherson struts in the front.

Rear camber will be way out, mine was -3/-2.5 degrees. Visibly bad. Moog LCAs and it's all dialed in, I did not need to install the offset rear toe bushings. SPC front camber bolts as well.

See my thread here, exact same situation.

https://www.ft86club.com/forums/showthread.php?t=132421

Before and after. Specs are in degrees and minutes, not decimals.
Thanks a bunch! I actually remember reading your thread a while back but then lost track of it after my eyes started bleeding from reading so many posts. I guess I'll go ahead and get the bolts and LCA's to have for the install.
pogofx is offline   Reply With Quote
Old 04-10-2019, 02:10 PM   #4
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,933
Thanks: 3,199
Thanked 4,095 Times in 2,045 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
-2.5* of camber sounds like a dream alignment to me

I thought the springs on the PP would be better than the pro kit springs...interested to know how you like it in comparison.
DarkPira7e is offline   Reply With Quote
The Following User Says Thank You to DarkPira7e For This Useful Post:
maslin (04-10-2019)
Old 04-10-2019, 02:20 PM   #5
maslin
Benz Tech
 
Join Date: Dec 2018
Drives: 2017 BRZ Premium
Location: Oregon
Posts: 580
Thanks: 363
Thanked 562 Times in 308 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
-2.5* of camber sounds like a dream alignment to me

I thought the springs on the PP would be better than the pro kit springs...interested to know how you like it in comparison.
-2.5 in the rear -0.5 in the front looks like a dumped honda civic. -2.5 all around would work, just not what I was going after. No track time for mine, just a poor weather street beater

-1*40' was as much camber as I could get on the front with just the SPC camber bolts.
maslin is offline   Reply With Quote
Old 04-10-2019, 02:39 PM   #6
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,716
Thanks: 7,875
Thanked 3,351 Times in 2,134 Posts
Mentioned: 99 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by DarkPira7e View Post
I thought the springs on the PP would be better than the pro kit springs...interested to know how you like it in comparison.

I'll bet it rides rougher and doesn't handle any better
__________________
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:
DarkPira7e (04-10-2019)
Old 04-10-2019, 02:43 PM   #7
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
-2.5* of camber sounds like a dream alignment to me

I thought the springs on the PP would be better than the pro kit springs...interested to know how you like it in comparison.
From what I understand the BRZ PP just gets you the Sachs dampers. I believe the ride height and springs are the same as all the 17-19 BRZ's. The spring rates were changed slightly from 16 to 17. Someone correct me if wrong.
pogofx is offline   Reply With Quote
Old 04-10-2019, 02:51 PM   #8
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by wparsons View Post
I'll bet it rides rougher and doesn't handle any better
Well, I hope that a one inch lower CG and a slightly stiffer spring will be just a little better for the autocross days. Time will tell. Right now, I know the biggest thing that could be fixed for better times is the driver.

I've had good luck with the Eibachs and there progressive springs on other cars. A descent compromise for a daily driver with occasional track. Could have gone hard core for handling, but like I said, trying to comprise. Closing the wheel gap just little won't be so bad either. It's nothing that can't be undone if doesn't work out.
pogofx is offline   Reply With Quote
Old 04-10-2019, 03:18 PM   #9
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by maslin View Post
-2.5 in the rear -0.5 in the front looks like a dumped honda civic. -2.5 all around would work, just not what I was going after. No track time for mine, just a poor weather street beater

-1*40' was as much camber as I could get on the front with just the SPC camber bolts.
Just so I understand completely, you didn't need the SPC toe bushings for the LCA's. It looks like you had enough adjustment from the factory to get the rear toe dialed in. Right?

The SPC with toe kit is slightly more expensive the the MOOG without, not much. But if it's not needed then I won't bother and just order the MOOG off Amazon.
pogofx is offline   Reply With Quote
Old 04-10-2019, 03:33 PM   #10
maslin
Benz Tech
 
Join Date: Dec 2018
Drives: 2017 BRZ Premium
Location: Oregon
Posts: 580
Thanks: 363
Thanked 562 Times in 308 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by pogofx View Post
Just so I understand completely, you didn't need the SPC toe bushings for the LCA's. It looks like you had enough adjustment from the factory to get the rear toe dialed in. Right?

The SPC with toe kit is slightly more expensive the the MOOG without, not much. But if it's not needed then I won't bother and just order the MOOG off Amazon.
Moog is SPC, same kits for a bunch of brands. Moog comes as one side, I think I paid $85 per kit on Amazon? The parts say SPC on them.

One of the brands (Whiteline?) presses out the inner joints and supplies bushings for SCCA requirements.

I did not need the rear toe bushings for that drop and camber. The less negative (closer to 0) the camber the more travel you need on the toe link I believe it was. If you want -1 instead of -1.6 you would need to install the bushings at 1" drop.


Straight from the Moog box, offset bushings included.
Attached Images
 
maslin is offline   Reply With Quote
Old 04-10-2019, 03:38 PM   #11
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,716
Thanks: 7,875
Thanked 3,351 Times in 2,134 Posts
Mentioned: 99 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by pogofx View Post
Well, I hope that a one inch lower CG and a slightly stiffer spring will be just a little better for the autocross days. Time will tell.

It would probably be better off with the extra bump travel. Springs will bump you a class likely, and if it's SCCA based you'll now be in STX unless TRD springs are allowed in stock on BRZ's (and they're actually TRD springs, not eibach branded), I haven't been keeping up much..
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak...
flickr
wparsons is offline   Reply With Quote
Old 04-10-2019, 04:50 PM   #12
pogofx
Member
 
Join Date: Mar 2018
Drives: 2018 BRZ Limited
Location: Navarre, FL
Posts: 38
Thanks: 5
Thanked 36 Times in 5 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by wparsons View Post
It would probably be better off with the extra bump travel. Springs will bump you a class likely, and if it's SCCA based you'll now be in STX unless TRD springs are allowed in stock on BRZ's (and they're actually TRD springs, not eibach branded), I haven't been keeping up much..
Yep, I'm already in STX with the other mods I have. Seems all the other twins I'm running against in that class all have some suspension work. I'm really doing it just for fun. I'm not that competitive as a driver yet, but I figured if I can close the wheel gap for aesthetics and pick up just a hair of performance at the same time , I'd give it a try.
pogofx is offline   Reply With Quote
The Following User Says Thank You to pogofx For This Useful Post:
wparsons (04-12-2019)
 
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
Question About Negative Camber: More Negative Camber == More Grip at Corner? Figo Suspension | Chassis | Brakes -- Sponsored by 949 Racing 38 03-10-2019 02:08 PM
Negative Camber! victorchav Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 6 06-08-2016 12:51 PM
Negative front camber? Estey Suspension | Chassis | Brakes -- Sponsored by 949 Racing 10 01-23-2014 06:33 PM
Advice on negative rear camber Thongpocket Suspension | Chassis | Brakes -- Sponsored by 949 Racing 23 09-27-2013 10:38 PM
Excessive negative camber? MTeator Suspension | Chassis | Brakes -- Sponsored by 949 Racing 10 06-22-2012 10:30 AM


All times are GMT -4. The time now is 02:48 AM.


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.