Shuttering While Cornering Hard - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Robbie7c · 07-13-2022, 11:57 AM

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

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

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

That would be my bet then.

Ultramaroon · 07-13-2022, 01:51 PM

Quote:

Originally Posted by Robbie7c

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

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

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

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

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

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

is the traction control kicking in while this is happening?

I suspect that is the "shuttering*" he speaks of.

*Shuddering

Shuttering while turning would indeed be a pain!

blsfrs · 07-15-2022, 10:59 AM

Not to be confused with stuttering.

07-13-2022, 11:57 AM	#1
Robbie7c Member Join Date: Jul 2022 Drives: 2013 Subaru BRZ Location: Ontario, Canada Posts: 16 Thanks: 0 Thanked 4 Times in 3 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	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.

07-13-2022, 12:02 PM	#2
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,294 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	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. __________________ Racecar spelled backwards is Racecar, because Racecar.

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07-13-2022, 10:17 PM	#7
blsfrs Senior Member Join Date: Dec 2018 Drives: 2013 frs base Location: central Virginia Posts: 1,428 Thanks: 2,637 Thanked 1,421 Times in 676 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Rotate your tires. See if the behavior changes.

07-15-2022, 10:59 AM	#14
blsfrs Senior Member Join Date: Dec 2018 Drives: 2013 frs base Location: central Virginia Posts: 1,428 Thanks: 2,637 Thanked 1,421 Times in 676 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Not to be confused with stuttering.

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