Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB
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Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Issues | Warranty | Recalls / TSB (https://www.ft86club.com/forums/forumdisplay.php?f=72)
-   -   Shuttering While Cornering Hard (https://www.ft86club.com/forums/showthread.php?t=150382)

Robbie7c 07-13-2022 11:57 AM
Shuttering While Cornering Hard
 
I've got a 2013 Subaru BRZ, I've had it for about 3 and a half years, and it has 220000kms on it. It's my daily that I drive about 200km a day in so I rack up the kms pretty quick!

Anyway, I've had an issue that's just recently surfaced. When I corner hard it seems to shutter/shake, only on the limit and it's when I start to get on the gas. This leads me to believe its maybe wheel hop?

Incase there's any other issue it could be that's not wheel hop I thought I should ask.

If it is wheel hop, what seems to be the most common cause of this?

The car is 100% stock.

Tcoat 07-13-2022 12:02 PM
How are your tires? I found when my FRS tires were at the end of their life they would give the traction control fits when cornering.

Robbie7c 07-13-2022 12:38 PM
Quote:
Originally Posted by Tcoat (Post 3534382)
How are your tires? I found when my FRS tires were at the end of their life they would give the traction control fits when cornering.

They’re definitely getting worn out, hoping to get the rest of this summer out of them. If that’s the issue that would be easy!


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Tcoat 07-13-2022 12:52 PM
Quote:
Originally Posted by Robbie7c (Post 3534396)
They’re definitely getting worn out, hoping to get the rest of this summer out of them. If that’s the issue that would be easy!


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That would be my bet then.

Ultramaroon 07-13-2022 01:51 PM
Quote:
Originally Posted by Robbie7c (Post 3534396)
They’re definitely getting worn out, hoping to get the rest of this summer out of them. If that’s the issue that would be easy!
Quick test to confirm would be to long-press the traction control to defeat it. Don't worry. It's not like the car suddenly becomes a Mustang.

Robbie7c 07-13-2022 02:04 PM
Quote:
Originally Posted by Ultramaroon (Post 3534431)
Quick test to confirm would be to long-press the traction control to defeat it. Don't worry. It's not like the car suddenly becomes a Mustang.

Yeah that’s a good idea! I’ll try that.

And yes I’ve used that button a time or two, its a fun button, especially in the winter!


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blsfrs 07-13-2022 10:17 PM
Rotate your tires. See if the behavior changes.

e_lunatic 07-13-2022 11:17 PM
Quote:
Originally Posted by Robbie7c (Post 3534396)
They’re definitely getting worn out, hoping to get the rest of this summer out of them. If that’s the issue that would be easy!


Sent from my iPhone using Tapatalk

I agree with Tcoat thats what it sounds like to me as well.

Opie 07-14-2022 09:05 AM
Worn struts can also do this...

Tcoat 07-14-2022 11:08 AM
Quote:
Originally Posted by Opie (Post 3534617)
Worn struts can also do this...
And bushings, bearing, etc, etc.
Start at the parts that touch the ground and work your way up.

nextcar 07-14-2022 11:12 AM
Quote:
Originally Posted by Robbie7c (Post 3534381)
When I corner hard it seems to shutter/shake, only on the limit and it's when I start to get on the gas.
Perhaps stating the obvious, but this sounds like understeer to me. Coupled with the "only on the limit", have you considered that this might be driver input (e.g. a result of your braking, weight transfer, speed and steering wheel angle being incorrect for the corner?) I ran into this when I first started HPDEs... even though I was slower than I am now.

e_lunatic 07-14-2022 01:34 PM
Quote:
Originally Posted by Robbie7c (Post 3534381)
I've got a 2013 Subaru BRZ, I've had it for about 3 and a half years, and it has 220000kms on it. It's my daily that I drive about 200km a day in so I rack up the kms pretty quick!

Anyway, I've had an issue that's just recently surfaced. When I corner hard it seems to shutter/shake, only on the limit and it's when I start to get on the gas. This leads me to believe its maybe wheel hop?

Incase there's any other issue it could be that's not wheel hop I thought I should ask.

If it is wheel hop, what seems to be the most common cause of this?

The car is 100% stock.



is the traction control kicking in while this is happening?

Tcoat 07-14-2022 04:02 PM
Quote:
Originally Posted by e_lunatic (Post 3534680)
is the traction control kicking in while this is happening?
I suspect that is the "shuttering*" he speaks of.

*Shuddering

https://thumbs.gfycat.com/LastingNew...er-max-1mb.gif

https://c.tenor.com/gqMu9ZIwUcIAAAAM...n-reynolds.gif

Shuttering while turning would indeed be a pain!

blsfrs 07-15-2022 10:59 AM
Not to be confused with stuttering.
https://www.youtube.com/watch?v=gBzJGckMYO4


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