follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Community Calendar Today's Posts Search

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Tracking / Autocross / HPDE / Drifting

Tracking / Autocross / HPDE / Drifting What these cars were built for!


User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-28-2017, 10:41 AM   #1
oppiee
Senior Member
 
Join Date: Feb 2014
Drives: 2014 Scion FRS (Red)
Location: Toronto
Posts: 148
Thanks: 15
Thanked 15 Times in 14 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
tire wear

Hey guys,

I was at the track this weekend. I wanted to get some opinions on seasoned track day goers.

I noticed that my front tires had a lot of wear on tread just adjacent to the tire wall. like piece were chewed off. Nothing on my rear tires.

Do you guys think i am over driving or is this just normal for this car?

Thanks!!
oppiee is offline   Reply With Quote
Old 08-28-2017, 11:56 AM   #2
DarkSunrise
Senior Member
 
DarkSunrise's Avatar
 
Join Date: Apr 2012
Drives: 22 BRZ (Previously 13 FR-S)
Location: USA
Posts: 5,794
Thanks: 2,164
Thanked 4,242 Times in 2,220 Posts
Mentioned: 48 Post(s)
Tagged: 2 Thread(s)
Probably need more negative camber up front. What is your alignment?
__________________
"Never run out of real estate, traction, and ideas at the same time."

2022 BRZ Build
2013 FR-S Build
DarkSunrise is offline   Reply With Quote
Old 08-28-2017, 12:10 PM   #3
nico_rsx
Senior Member
 
Join Date: May 2016
Drives: BRZ 2017 Pure Red, MT
Location: Quebec, Canada
Posts: 309
Thanks: 122
Thanked 121 Times in 83 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
What is your front camber?
What tire model?
What pressure were you running (specify if hot or cold psi).
nico_rsx is offline   Reply With Quote
Old 08-28-2017, 12:21 PM   #4
FirstWinter
Senior Member
 
Join Date: Nov 2015
Drives: Car
Location: Location
Posts: 646
Thanks: 374
Thanked 422 Times in 254 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
What tires were you running? Sounds like they're chunking. You got any pics?
FirstWinter is offline   Reply With Quote
Old 08-28-2017, 01:15 PM   #5
strat61caster
-
 
strat61caster's Avatar
 
Join Date: Nov 2012
Drives: '13 FRS - STX
Location: SF Bay Area
Posts: 10,367
Thanks: 13,740
Thanked 9,481 Times in 4,999 Posts
Mentioned: 94 Post(s)
Tagged: 3 Thread(s)
If your car is totally stock (suspension wise at least) and you were attempting to drive it at 10/10ths it's totally expected for this to happen. The car lacks enough camber up front due to the Macpherson strut design.

Find a way to add camber that suits you and get it aligned to reduce tire wear up front. As an added bonus you'll have a lot more front end grip in steady state cornering which should lead to a more balanced fun car imho.

Based on my limited experience I think -2.5 degrees would be a more aggressive compromise between track and street, -3.0 and you're getting close to evening out the wear. Less may be workable depending on what you want out of the car and your driving style and what you want to spend on modifying it for track use (camber bolts vs. camber plates vs. slotted struts).

http://www.ft86club.com/forums/showthread.php?t=103609

Order the parts, schedule an alignment, swap the tires back to front and head out to your next track day! And keep an eye on the brakes if those are still stock too, those will be the next to go (if they haven't already)

__________________
Quote:
Originally Posted by Guff View Post
ineedyourdiddly
strat61caster is offline   Reply With Quote
The Following 2 Users Say Thank You to strat61caster For This Useful Post:
lutfy (08-29-2017), oppiee (08-29-2017)
Old 08-28-2017, 01:59 PM   #6
JazzleSAURUS
Senior Member
 
Join Date: May 2015
Drives: 15 BRZ LTD, 05 FXT
Location: Western MA
Posts: 1,032
Thanks: 561
Thanked 558 Times in 351 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by strat61caster View Post
If your car is totally stock (suspension wise at least) and you were attempting to drive it at 10/10ths it's totally expected for this to happen. The car lacks enough camber up front due to the Macpherson strut design.

Find a way to add camber that suits you and get it aligned to reduce tire wear up front. As an added bonus you'll have a lot more front end grip in steady state cornering which should lead to a more balanced fun car imho.

Based on my limited experience I think -2.5 degrees would be a more aggressive compromise between track and street, -3.0 and you're getting close to evening out the wear. Less may be workable depending on what you want out of the car and your driving style and what you want to spend on modifying it for track use (camber bolts vs. camber plates vs. slotted struts).

http://www.ft86club.com/forums/showthread.php?t=103609

Order the parts, schedule an alignment, swap the tires back to front and head out to your next track day! And keep an eye on the brakes if those are still stock too, those will be the next to go (if they haven't already)

FWIW I'm running -1.9 front camber, and I'm still getting some outside shoulder wear with autox days and sprited DD. Next summer I'll go for ~-2.3.
__________________
SOLD: 2015 WRB BRZ Limited ('02 WRX BBS, S-04's, Stoptech Sport pads, MXP SP, AVO drop in filter, Mishimoto Intake tube, decatted header, OFT 93 Stage 2 EL Tune, Kartboy rear shifter bushing, Whiteline transmission and subframe lockout bushings, ST Coilovers, SPC Camber bolts w/smaller crash bolt, SPC LCA's & SPC Toe Arm bushings, Red TOMs, TRD Wing.)
JazzleSAURUS is offline   Reply With Quote
The Following 2 Users Say Thank You to JazzleSAURUS For This Useful Post:
oppiee (08-29-2017), strat61caster (08-28-2017)
Old 08-29-2017, 09:55 AM   #7
oppiee
Senior Member
 
Join Date: Feb 2014
Drives: 2014 Scion FRS (Red)
Location: Toronto
Posts: 148
Thanks: 15
Thanked 15 Times in 14 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thanks! Ya I am running fully stock suspension wise.

running continental extreme contact.

how much will camber bolts help?

pic is here: https://goo.gl/photos/EZKXHA6x3vyc6T83A


Quote:
Originally Posted by strat61caster View Post
If your car is totally stock (suspension wise at least) and you were attempting to drive it at 10/10ths it's totally expected for this to happen. The car lacks enough camber up front due to the Macpherson strut design.

Find a way to add camber that suits you and get it aligned to reduce tire wear up front. As an added bonus you'll have a lot more front end grip in steady state cornering which should lead to a more balanced fun car imho.

Based on my limited experience I think -2.5 degrees would be a more aggressive compromise between track and street, -3.0 and you're getting close to evening out the wear. Less may be workable depending on what you want out of the car and your driving style and what you want to spend on modifying it for track use (camber bolts vs. camber plates vs. slotted struts).

http://www.ft86club.com/forums/showthread.php?t=103609

Order the parts, schedule an alignment, swap the tires back to front and head out to your next track day! And keep an eye on the brakes if those are still stock too, those will be the next to go (if they haven't already)

oppiee is offline   Reply With Quote
Old 08-29-2017, 11:04 AM   #8
lutfy
Senior Member
 
lutfy's Avatar
 
Join Date: Apr 2017
Drives: 2022 LR Defender, 2015 FRS_ST5/TT5
Location: Washington, DC
Posts: 220
Thanks: 62
Thanked 193 Times in 100 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by strat61caster View Post
If your car is totally stock (suspension wise at least) and you were attempting to drive it at 10/10ths it's totally expected for this to happen. The car lacks enough camber up front due to the Macpherson strut design.

Find a way to add camber that suits you and get it aligned to reduce tire wear up front. As an added bonus you'll have a lot more front end grip in steady state cornering which should lead to a more balanced fun car imho.

Based on my limited experience I think -2.5 degrees would be a more aggressive compromise between track and street, -3.0 and you're getting close to evening out the wear. Less may be workable depending on what you want out of the car and your driving style and what you want to spend on modifying it for track use (camber bolts vs. camber plates vs. slotted struts).

http://www.ft86club.com/forums/showthread.php?t=103609

Order the parts, schedule an alignment, swap the tires back to front and head out to your next track day! And keep an eye on the brakes if those are still stock too, those will be the next to go (if they haven't already)

Quote:
Originally Posted by oppiee View Post
Thanks! Ya I am running fully stock suspension wise.

running continental extreme contact.

how much will camber bolts help?

pic is here: https://goo.gl/photos/EZKXHA6x3vyc6T83A
If you're serious about tracking, I'd get camber plates right away. I went the bolt way (did it twice, one with crash bolt and another time with crash bolt on top and camber bolt at the bottom). Max I got was -2.4 with lowering springs (TRD) and it was STILL an understeering pig. Deduct -0.2 to -0.3 range since you are on stock springs.

Either you manage the tires (slow in, manage mid corner) or increase camber. I now have -3.2 and its JUST right based on tire temps.

Lutfy
__________________
2015 FRS NASA ST/TT5
2022 LR Defender
2023 BMW M2
lutfy is offline   Reply With Quote
The Following User Says Thank You to lutfy For This Useful Post:
strat61caster (08-29-2017)
Old 08-29-2017, 12:10 PM   #9
oppiee
Senior Member
 
Join Date: Feb 2014
Drives: 2014 Scion FRS (Red)
Location: Toronto
Posts: 148
Thanks: 15
Thanked 15 Times in 14 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thats fair.

I just got into tracking the car this year. So i am still learning. I will eventually get coilovers and whatever I need to make things better. just wanted to make sure this is normal haha!

I want to increase my time on the track and get better lap times and slowly upgrade.

Quote:
Originally Posted by lutfy View Post
If you're serious about tracking, I'd get camber plates right away. I went the bolt way (did it twice, one with crash bolt and another time with crash bolt on top and camber bolt at the bottom). Max I got was -2.4 with lowering springs (TRD) and it was STILL an understeering pig. Deduct -0.2 to -0.3 range since you are on stock springs.

Either you manage the tires (slow in, manage mid corner) or increase camber. I now have -3.2 and its JUST right based on tire temps.

Lutfy
oppiee is offline   Reply With Quote
Old 08-29-2017, 12:55 PM   #10
strat61caster
-
 
strat61caster's Avatar
 
Join Date: Nov 2012
Drives: '13 FRS - STX
Location: SF Bay Area
Posts: 10,367
Thanks: 13,740
Thanked 9,481 Times in 4,999 Posts
Mentioned: 94 Post(s)
Tagged: 3 Thread(s)
Quote:
Originally Posted by oppiee View Post
Thats fair.

I just got into tracking the car this year. So i am still learning. I will eventually get coilovers and whatever I need to make things better. just wanted to make sure this is normal haha!

I want to increase my time on the track and get better lap times and slowly upgrade.
Get the lower position camber bolt and then put the lower bolt in the top hole for maximum camber on minimum budget, a good alignment shop should be able to max it out and understand what you want.

Like @lufty says, you're only going to get about -2.0 to -2.5 this way, it will help a noticeable amount but you will still see outer shoulder wear.

imo rotate the tires and keep driving hard, it's all part of learning



Edit: oh, and here's what my tires looked like after my second track day
__________________
Quote:
Originally Posted by Guff View Post
ineedyourdiddly
strat61caster is offline   Reply With Quote
 
Reply


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
Tire Wear? Flo Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 12 01-10-2017 03:19 PM
Strange tire wear PandaBRZ Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 12 04-18-2016 02:22 AM
Tire Wear question bacon_cheese_beer Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 27 12-08-2014 02:51 AM
Tire Wear Help babykwiss Tracking / Autocross / HPDE / Drifting 10 07-14-2014 11:31 AM
Let's Discuss Tire Wear SkitterSkotter Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack 12 01-14-2014 11:35 PM


All times are GMT -4. The time now is 01:09 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.