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 12-02-2024, 01:44 PM   #337
Tokay444
Anti stance.
 
Tokay444's Avatar
 
Join Date: Feb 2016
Drives: 17 White 860. RCE Tarmac 2. RE-71RS
Location: Not Canada
Posts: 1,703
Thanks: 926
Thanked 992 Times in 568 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DocWalt View Post
What?

I've used snow tires plenty on much more aggressive alignments, that's not the issue.
Clearly it’s a large part of the issue. If he’s not changing to a softer spring, he’s never going to generate enough roll to flatten the tire out at those settings. Faster rebound doesn’t negate how hard the spring is at all. Neither does softer compression.
Tokay444 is offline   Reply With Quote
Old 12-02-2024, 02:12 PM   #338
DocWalt
Senior Member
 
DocWalt's Avatar
 
Join Date: Oct 2013
Drives: '22 BRZ
Location: PA
Posts: 1,909
Thanks: 2,370
Thanked 1,581 Times in 817 Posts
Mentioned: 24 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Tokay444 View Post
Clearly it’s a large part of the issue. If he’s not changing to a softer spring, he’s never going to generate enough roll to flatten the tire out at those settings. Faster rebound doesn’t negate how hard the spring is at all. Neither does softer compression.

I'm just going to have to disagree with you and leave it at that.
DocWalt is offline   Reply With Quote
Old 12-02-2024, 02:17 PM   #339
Tokay444
Anti stance.
 
Tokay444's Avatar
 
Join Date: Feb 2016
Drives: 17 White 860. RCE Tarmac 2. RE-71RS
Location: Not Canada
Posts: 1,703
Thanks: 926
Thanked 992 Times in 568 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DocWalt View Post
I'm just going to have to disagree with you and leave it at that.
Even with a 235 on an 18” wheel, huh?
You do you I guess.
Op, I’d start at your alignment. It’s the easiest thing to change.
Tokay444 is offline   Reply With Quote
The Following User Says Thank You to Tokay444 For This Useful Post:
StraightOuttaCanadaEh (12-02-2024)
Old 12-02-2024, 02:29 PM   #340
Tatsu333
Senior Member
 
Join Date: Jan 2017
Drives: 2020 BRZ Sport Tech RS
Location: Canada
Posts: 386
Thanks: 472
Thanked 272 Times in 154 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by StraightOuttaCanadaEh View Post
I'm on 18x8.5. There is a bit of stretch in the sidewall. Yeah and having driven on super gummy tires, I gotta be honest it just doesn't even feel like an 86 anymore lol. Reason I'm suspecting the car and not the tires is that apart from the coilovers, I also have both of the whiteline diff inserts (outrigger and the other one) and subframe inserts as well. So there is no slack, which makes me theorize that maybe by moving the suspension pick up point, I will introduce slack that might help with grip
Quote:
Originally Posted by DocWalt View Post
What?

I've used snow tires plenty on much more aggressive alignments, that's not the issue.
Because the traction mod reducing anti-squat loads the rears more progressively under power, you very well may find that it does help with your winter traction issues.

I definitely found that it greatly improved the ability to put down (stock) power in the wet and the little bit of snow/slush/ice we get around here in the winter.

I agree with DocWalt that your camber is most likely not the issue. It helps in the dry because it helps keep the tire from rolling over onto the sidewall when cornering hard with lots of lateral load / roll angle, but there's not enough of that going on to pull contact patch off of the tire tread in winter unless you're WAY over-driving for the structure of the tires (especially the softer sidewalls most winter tires have). The contact patch is the same size regardless, and -2.1 degrees in the rear isn't enough to pull a measurable amount of that inward off of the tire tread to the inside sidewalls to compromise traction.

FWIW, I'm on RCE SS1's (damping set as recommended for street use), lowered about 30mm front and rear, my rear camber and toe are pretty much identical to yours, and I also run Michelin X-Ice snows in the winter (though in 225/45R17 on the stock Sport Tech RS / Performance Pack 17x7.5's). As long as I'm reasonable with my right foot, no problems with traction, though the traction / stability control definitely works overtime on ice / slush. They're OK in the dry, but definitely squishier / squirmier than my same-sized Pirelli P Zero All-Seasons I run the rest of the year.
__________________
Tatsu333 is offline   Reply With Quote
The Following 2 Users Say Thank You to Tatsu333 For This Useful Post:
DocWalt (12-05-2024), StraightOuttaCanadaEh (12-02-2024)
Old 12-02-2024, 05:13 PM   #341
StraightOuttaCanadaEh
Wes
 
Join Date: Feb 2017
Drives: Artisan Spirits '17 86
Location: Toronto
Posts: 2,831
Thanks: 1,206
Thanked 1,703 Times in 1,010 Posts
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Thanks, that's very useful. I've been wanting to do the mod anyway, so I'll do it and see if it helps. I have noticed the traction control light lighting up even when coming off the off-ramp at a brisk pace. So a very gradual turn in, not even a 90 degree turn
__________________
Instagram: @gt86ws
StraightOuttaCanadaEh is offline   Reply With Quote
Old 12-02-2024, 06:57 PM   #342
DocWalt
Senior Member
 
DocWalt's Avatar
 
Join Date: Oct 2013
Drives: '22 BRZ
Location: PA
Posts: 1,909
Thanks: 2,370
Thanked 1,581 Times in 817 Posts
Mentioned: 24 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Tokay444 View Post
Even with a 235 on an 18” wheel, huh?
You do you I guess.
Op, I’d start at your alignment. It’s the easiest thing to change.

235 snow tire on an 18x8.5" wheel is not ideal. I doubt the alignment magically fixes the power down.

Snow tires are *terrible* about putting power down on dry roads, in my experience, and I've tested with 100% stock and lowered on coilovers with diff & subframe bushings with a more aggressive alignment. It was bad either way, especially when the tires died.
DocWalt is offline   Reply With Quote
The Following User Says Thank You to DocWalt For This Useful Post:
StraightOuttaCanadaEh (12-02-2024)
Old 12-02-2024, 07:40 PM   #343
Tokay444
Anti stance.
 
Tokay444's Avatar
 
Join Date: Feb 2016
Drives: 17 White 860. RCE Tarmac 2. RE-71RS
Location: Not Canada
Posts: 1,703
Thanks: 926
Thanked 992 Times in 568 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
I have winter and summer alignments. You all should.
Tokay444 is offline   Reply With Quote
Old 12-03-2024, 02:05 PM   #344
marco_mc22
Senior Member
 
Join Date: Jun 2017
Drives: Toyota 86
Location: Italy
Posts: 138
Thanks: 42
Thanked 74 Times in 57 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Tokay444 View Post
I have winter and summer alignments. You all should.
Totally agree…
marco_mc22 is offline   Reply With Quote
The Following User Says Thank You to marco_mc22 For This Useful Post:
Tokay444 (12-03-2024)
Old 12-03-2024, 02:10 PM   #345
Tokay444
Anti stance.
 
Tokay444's Avatar
 
Join Date: Feb 2016
Drives: 17 White 860. RCE Tarmac 2. RE-71RS
Location: Not Canada
Posts: 1,703
Thanks: 926
Thanked 992 Times in 568 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by marco_mc22 View Post
Totally agree…
Heck, I have different alignments for different tracks.
Tokay444 is offline   Reply With Quote
Old 12-11-2024, 10:39 AM   #346
ZDan
Senior Member
 
ZDan's Avatar
 
Join Date: May 2011
Drives: '23 BRZ
Location: Providence, RI
Posts: 4,635
Thanks: 1,420
Thanked 3,968 Times in 2,073 Posts
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
Meh, I never had issues in the snow running track alignment (-3.3 front/-2.8 rear camber, zero toe all around) on winter tires in snow. I sometimes reduce front down to -2.5 cuz easy to do but sometimes don’t bother. Interestingly never got much asymmetric wear on my winter tires.
ZDan is offline   Reply With Quote
The Following 3 Users Say Thank You to ZDan For This Useful Post:
DocWalt (12-11-2024), Tatsu333 (12-11-2024)
Old 12-26-2024, 06:42 PM   #347
Ultramaroon
meow
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 32,313
Thanks: 52,888
Thanked 37,120 Times in 19,254 Posts
Mentioned: 1114 Post(s)
Tagged: 9 Thread(s)
Yay, Santa!


__________________
Ultramaroon is offline   Reply With Quote
The Following 10 Users Say Thank You to Ultramaroon For This Useful Post:
Code Monkey (12-27-2024), DocWalt (12-27-2024), norcalpb (01-01-2025), Racecomp Engineering (12-27-2024), RToyo86 (12-26-2024), Tatsu333 (12-26-2024), villainous_frx (12-27-2024), whataboutbob (12-27-2024), Xed32 (01-02-2025)
 
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
Needed opinions: Does debadging "Subaru" and "BRZ" cheapen the car? davidchoi Cosmetic Modification (Interior/Exterior/Lighting) 49 11-22-2014 11:17 PM
"Clicking" or "knocking" caused by rear seat pull down lever. husker741 Issues | Warranty | Recalls / TSB 6 11-27-2013 03:30 PM
"My Dealer told me {insert dumb idea}" (was "Toyota/Subary Partnership Cancelled?") levifig BRZ First-Gen (2012+) -- General Topics 48 08-09-2013 07:34 PM
Factory suspension "sticktion" andrew20195 Suspension | Chassis | Brakes -- Sponsored by 949 Racing 1 04-02-2013 03:49 PM
"Official" Suspension/Brake Thread NYC BRZ Suspension | Chassis | Brakes -- Sponsored by 949 Racing 27 06-27-2012 10:14 PM


All times are GMT -4. The time now is 02:54 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2025 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.