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 - FT86CLUB > Technical Topics > Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack

Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack Specific topics relating to wheels and tires.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-30-2018, 03:07 PM   #1
R_E_L
He's got this.
 
R_E_L's Avatar
 
Join Date: Mar 2010
Drives: 50th Anni BRZ
Location: SoCal
Posts: 536
Thanks: 203
Thanked 205 Times in 110 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
How does my tire wear look?

I was checking out my tires today and realized I got some funky wear going on. I preface this by saying 90% of my driving in this car is in the canyons with the other 10% being the commute to said roads. So I expected more wear on the edges but what I am noticing is a defined edge/step, about 1/16 in. (probably where one compound meets another), developing in the front.


Is this just a normal consequence of the type of driving I do or do I need to change something? Alignment/tire pressure/driving style etc? The car is completely stock. I try to make my transitions and turn in as smooth as possible but I have no training, so my idea of smooth may be a more experienced person's frantic. What do you guys think, do I need to address something or am I good?

Front:


Rear:
__________________
Don't worry, I'm certified... promise.
R_E_L is offline   Reply With Quote
Old 08-30-2018, 03:19 PM   #2
Leonardo
Country Boy 4 Life
 
Leonardo's Avatar
 
Join Date: Jul 2012
Drives: 13' FR-S, 07' MDX, 06' Ridgeline,
Location: EUGENE
Posts: 5,222
Thanks: 6,623
Thanked 5,162 Times in 2,685 Posts
Mentioned: 46 Post(s)
Tagged: 1 Thread(s)
How many miles do you have on these tires? On the car?


If I had "funky" tire wear: First I would check my tire pressure to make sure they were all the same. (even a few psi off side to side or front to back can cause weird wear) Then I would get my alignment checked.
__________________
<img src=https://www.ft86club.com/forums/picture.php?albumid=2239&pictureid=11508 border=0 alt= />


I LIKE TIRES!
Leonardo is offline   Reply With Quote
Old 08-30-2018, 03:43 PM   #3
R_E_L
He's got this.
 
R_E_L's Avatar
 
Join Date: Mar 2010
Drives: 50th Anni BRZ
Location: SoCal
Posts: 536
Thanks: 203
Thanked 205 Times in 110 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
1500 miles. I got the car almost 3 months ago. Admittedly I did not keep a close eye on tire pressure the 1st month or so. Pressures were a little low when I did check in the second month and they have been up to spec since.
__________________
Don't worry, I'm certified... promise.
R_E_L is offline   Reply With Quote
The Following User Says Thank You to R_E_L For This Useful Post:
Leonardo (08-30-2018)
Old 08-30-2018, 03:44 PM   #4
BigTuna
Senior Member
 
BigTuna's Avatar
 
Join Date: Jun 2015
Drives: 2013 WRB BRZ
Location: Ohio
Posts: 502
Thanks: 148
Thanked 310 Times in 184 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
What are your tire pressures?

Edit:
To me, it looks like they are a little high for the type of driving you do. It's like it's not wearing all the way to the edges.
__________________
BigTuna is offline   Reply With Quote
Old 08-30-2018, 03:56 PM   #5
R_E_L
He's got this.
 
R_E_L's Avatar
 
Join Date: Mar 2010
Drives: 50th Anni BRZ
Location: SoCal
Posts: 536
Thanks: 203
Thanked 205 Times in 110 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
What would be considered the edge? The bottom of the lower half circle mark? I try and keep it at the recommended 35 PSI. It has dropped into high 20s in between refills.
__________________
Don't worry, I'm certified... promise.
R_E_L is offline   Reply With Quote
Old 08-30-2018, 04:02 PM   #6
BigTuna
Senior Member
 
BigTuna's Avatar
 
Join Date: Jun 2015
Drives: 2013 WRB BRZ
Location: Ohio
Posts: 502
Thanks: 148
Thanked 310 Times in 184 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
To me, the flat edge of the half circle looks like where it should theoretically hit. A lot of performance tires have little triangles that point to where the wear should be, but I'm not sure if these do. Either way it's not really a bad thing the way its wearing now.

FWIW, in autocross I typically run pressures at 28-30psi.

EDIT: actually, looking at photos of the stock tires, I think it's perfectly fine the way it is. It could just be the nature of the economy-focused tire getting a little bit hotter than it likes.
__________________
BigTuna is offline   Reply With Quote
The Following User Says Thank You to BigTuna For This Useful Post:
Leonardo (08-30-2018)
Old 08-30-2018, 04:10 PM   #7
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,631
Thanks: 7,588
Thanked 3,274 Times in 2,098 Posts
Mentioned: 98 Post(s)
Tagged: 1 Thread(s)
Garage
It looks like in most driving you're using part of the tire (maybe pressure is too high), and when driving harder you're using a bit more towards the edge.


Mine look like this too after some street driving between track days.
__________________
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 2 Users Say Thank You to wparsons For This Useful Post:
Leonardo (08-30-2018), Ultramaroon (08-30-2018)
Old 08-30-2018, 04:21 PM   #8
Ultramaroon
tractions durs
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 24,741
Thanks: 37,077
Thanked 24,866 Times in 13,579 Posts
Mentioned: 916 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by wparsons View Post
It looks like in most driving you're using part of the tire (maybe pressure is too high), and when driving harder you're using a bit more towards the edge.


Mine look like this too after some street driving between track days.
+1


Looks like the driver's badge of honour. Especially the fronts with stock camber. They're gonna scrub. (is that the right term?)
__________________
Ultramaroon is offline   Reply With Quote
The Following User Says Thank You to Ultramaroon For This Useful Post:
Leonardo (08-30-2018)
Old 08-30-2018, 05:39 PM   #9
Lynxis
Senior Member
 
Lynxis's Avatar
 
Join Date: Sep 2014
Drives: 2013 WRB BRZ 6MT
Location: Ontario Canada
Posts: 928
Thanks: 790
Thanked 506 Times in 335 Posts
Mentioned: 5 Post(s)
Tagged: 2 Thread(s)
Garage
Was gonna mention, front tire shoulder blocks like to tear away under hard cornering on stock camber. Consider investing in some camber bolts and max out front camber. Won't fix the problem but it will help alleviate it.
Lynxis is offline   Reply With Quote
Old 08-30-2018, 06:00 PM   #10
R_E_L
He's got this.
 
R_E_L's Avatar
 
Join Date: Mar 2010
Drives: 50th Anni BRZ
Location: SoCal
Posts: 536
Thanks: 203
Thanked 205 Times in 110 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Yeah some extra camber in the front may be worth looking into. Are camber bolts really enough or should I look at camber plates instead? While I like to tell myself I’ll eventually do track days, realistically I dont expect to do more than an auto x event once in a blue moon.
__________________
Don't worry, I'm certified... promise.
R_E_L is offline   Reply With Quote
Old 08-30-2018, 06:03 PM   #11
JIM THEO
Senior Member
 
Join Date: Feb 2018
Drives: BRZ 2018
Location: Greece
Posts: 414
Thanks: 88
Thanked 99 Times in 71 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
For the same period of owner I have exactly the opposite result, minor front tire wear on the shoulders major on the rears, and bear in mind our tarmac is like mirror at least in my town although I did some trips 1000Km away.
I bought a set of camber bolts to increase front camber to slightly less than -1 degree per wheel (along with 1mm/wheel toe out for better response) and I am waiting a pair of offset bushes for the rear control arm lower/inner as to increase to -1,5 degrees per wheel rear camber and set 0 toe.
Tire pressure 36psi all around.
But this is my driving style, I have never experienced understeer with this car, only controllable oversteer!
JIM THEO is offline   Reply With Quote
Old 09-01-2018, 11:28 AM   #12
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,631
Thanks: 7,588
Thanked 3,274 Times in 2,098 Posts
Mentioned: 98 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by R_E_L View Post
Yeah some extra camber in the front may be worth looking into. Are camber bolts really enough or should I look at camber plates instead? While I like to tell myself Iíll eventually do track days, realistically I dont expect to do more than an auto x event once in a blue moon.



You can get plenty of camber with bolts, SPC bolts in the lower holes + the stock lower bolts in the upper holes will get you into the -2* (or more) range, which is more than enough for what you're doing.
__________________
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:
R_E_L (09-01-2018)
Old 09-01-2018, 03:04 PM   #13
MrDinkleman
Senior Member
 
Join Date: Oct 2015
Drives: 2016 Oceanic, "base" model
Location: Valencia, CA
Posts: 394
Thanks: 129
Thanked 178 Times in 127 Posts
Mentioned: 5 Post(s)
Tagged: 2 Thread(s)
I see a couple issues.
First, do you have the same wear on the inside shoulder? If so, probably low pressure. If not, you need more chamber. Must be very twisty road...
Also, in the wider angle shot, it looks like your tire is stretched. Do you have wider wheels or is it just the angle of the pic?
The second issue is the top layer of rubber chunking off like that. Ive never seen that before. Usually, I see a smooth feathering between the layers. I would take car in and see if that's a defective tire.
MrDinkleman is offline   Reply With Quote
Old 09-05-2018, 01:30 PM   #14
R_E_L
He's got this.
 
R_E_L's Avatar
 
Join Date: Mar 2010
Drives: 50th Anni BRZ
Location: SoCal
Posts: 536
Thanks: 203
Thanked 205 Times in 110 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by MrDinkleman View Post
I see a couple issues.
First, do you have the same wear on the inside shoulder? If so, probably low pressure. If not, you need more chamber. Must be very twisty road...
Also, in the wider angle shot, it looks like your tire is stretched. Do you have wider wheels or is it just the angle of the pic?
The second issue is the top layer of rubber chunking off like that. Ive never seen that before. Usually, I see a smooth feathering between the layers. I would take car in and see if that's a defective tire.
The wear is on the outside of the front tires. I have the performance pack wheels which I believe are 1/2in wider than the base trim wheels. So yeah there is a bit of a stretch.
__________________
Don't worry, I'm certified... promise.
R_E_L 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
tire wear oppiee Tracking / Autocross / HPDE / Drifting 9 08-29-2017 12:55 PM
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 Help babykwiss Tracking / Autocross / HPDE / Drifting 10 07-14-2014 11:31 AM


All times are GMT -4. The time now is 10:26 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.