Left turns feels like rear camber is changing? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Four_wheel_drifts · 08-17-2021, 07:54 PM

This is weird. At moderate to fast speeds turning left, mid-turn it feels like the rear wants to step out (right).

Turn in, car takes a set. Then suddenly, the rear wants to wash out.

I’m getting my track alignment redone tomorrow. But I’m concerned that something is worn out, or is sticking, then breaking free (spherical joint on the racer x sway bar end links?).

Does this sound familiar to anyone? Can bad toe in rear alignment cause this?

It isn’t reproducible Turning right. Very high speed at the bottom Valkyrie hill at ORP counter clockwise was no problem 2 Sundays ago.

BlueWhelan · 08-17-2021, 09:18 PM

Definitely sounds like a toe problem. You’re alignment guy will tell you right away. Does it behave oddly under braking vs accelerating?

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Purist · 08-17-2021, 09:24 PM

Maybe get your ball joints checked. I had a bad one and the car would feel like the suspension geometry changed mid-corner. VSC light would activate too. We felt like it was steering from the rear and looked for issues with the rear, not the case.

The ball joint could explain the left turn only nature as well.

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Four_wheel_drifts · 08-17-2021, 09:41 PM

[QUOTE=BlueWhelan;3457386]Definitely sounds like a toe problem. You’re alignment guy will tell you right away. Does it behave oddly under braking vs accelerating?

I haven't noticed it much under braking. Accelerating, yes, as I think about it.

Four_wheel_drifts · 08-17-2021, 09:45 PM

[QUOTE=Purist;3457390]Maybe get your ball joints checked. I had a bad one and the car would feel like the suspension geometry changed mid-corner. VSC light would activate too. We felt like it was steering from the rear and looked for issues with the rear, not the case.

The ball joint could explain the left turn only nature as well.

Front ball joint?

The behavior your describing sure sounds like it. I run with the predecessor to the trac box all the times, so my VSC light never comes on.

Purist · 08-17-2021, 11:35 PM

[QUOTE=Four_wheel_drifts;3457402]

Quote:

Originally Posted by Purist

Maybe get your ball joints checked. I had a bad one and the car would feel like the suspension geometry changed mid-corner. VSC light would activate too. We felt like it was steering from the rear and looked for issues with the rear, not the case.

The ball joint could explain the left turn only nature as well.

Front ball joint?

The behavior your describing sure sounds like it. I run with the predecessor to the trac box all the times, so my VSC light never comes on.

Front ball joint. It was wobbly loose. Damaged in an incident on track, went unnoticed and got worse over time. Started out feeling like severe bump steer. I guess it was changing the toe by many degrees mid-corner.

Side point for the younger players: When your car doesn't feel right, get it checked. Could've ended very badly for me.

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Four_wheel_drifts · 08-18-2021, 12:34 AM

Purist: Side point for the younger players: When your car doesn't feel right, get it checked. Could've ended very badly for me.

Totally! Turns out the 22mm nut on aftermarket rear toe link was loose. When I was under the car, I didn’t have enough leverage on my own to move the suspension. Once I got a helper to grab and shake the wheel back and forth with me under the car, it became obvious.

I check many nuts and bolts back there before every track weekend, but not those. ANOTHER point on the check list.

Thanks for your help, guys.

P.S. I checked the front ball joints first. They are tight.

Purist · 08-18-2021, 03:59 AM

Glad you got it sorted.

Because community

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08-17-2021, 07:54 PM	#1
Four_wheel_drifts Senior Member Join Date: Apr 2016 Drives: Whiteout track car; lava donor Location: Portland, OR Posts: 244 Thanks: 85 Thanked 64 Times in 40 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Left turns feels like rear camber is changing? This is weird. At moderate to fast speeds turning left, mid-turn it feels like the rear wants to step out (right). Turn in, car takes a set. Then suddenly, the rear wants to wash out. I’m getting my track alignment redone tomorrow. But I’m concerned that something is worn out, or is sticking, then breaking free (spherical joint on the racer x sway bar end links?). Does this sound familiar to anyone? Can bad toe in rear alignment cause this? It isn’t reproducible Turning right. Very high speed at the bottom Valkyrie hill at ORP counter clockwise was no problem 2 Sundays ago.

08-17-2021, 09:18 PM	#2
BlueWhelan Senior Member Join Date: Apr 2017 Drives: 2013 Blue Subaru BRZ. 6 Spd manual Location: Thousand Oaks, CA Posts: 203 Thanks: 138 Thanked 155 Times in 94 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Left turns feels like rear camber is changing? Definitely sounds like a toe problem. You’re alignment guy will tell you right away. Does it behave oddly under braking vs accelerating? Sent from my iPhone using Tapatalk

08-17-2021, 09:24 PM	#3
Purist Senior Member Join Date: May 2017 Drives: Subaru BRZ Location: Australia Posts: 349 Thanks: 125 Thanked 261 Times in 145 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Maybe get your ball joints checked. I had a bad one and the car would feel like the suspension geometry changed mid-corner. VSC light would activate too. We felt like it was steering from the rear and looked for issues with the rear, not the case. The ball joint could explain the left turn only nature as well. Sent from my SM-G973F using Tapatalk __________________ Less More

08-18-2021, 03:59 AM	#8
Purist Senior Member Join Date: May 2017 Drives: Subaru BRZ Location: Australia Posts: 349 Thanks: 125 Thanked 261 Times in 145 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Glad you got it sorted. Because community Sent from my SM-G973F using Tapatalk __________________ Less More

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08-17-2021, 09:41 PM	#4
Four_wheel_drifts Senior Member Join Date: Apr 2016 Drives: Whiteout track car; lava donor Location: Portland, OR Posts: 244 Thanks: 85 Thanked 64 Times in 40 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	[QUOTE=BlueWhelan;3457386]Definitely sounds like a toe problem. You’re alignment guy will tell you right away. Does it behave oddly under braking vs accelerating? I haven't noticed it much under braking. Accelerating, yes, as I think about it.

08-17-2021, 09:45 PM	#5
Four_wheel_drifts Senior Member Join Date: Apr 2016 Drives: Whiteout track car; lava donor Location: Portland, OR Posts: 244 Thanks: 85 Thanked 64 Times in 40 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	[QUOTE=Purist;3457390]Maybe get your ball joints checked. I had a bad one and the car would feel like the suspension geometry changed mid-corner. VSC light would activate too. We felt like it was steering from the rear and looked for issues with the rear, not the case. The ball joint could explain the left turn only nature as well. Front ball joint? The behavior your describing sure sounds like it. I run with the predecessor to the trac box all the times, so my VSC light never comes on.

08-18-2021, 12:34 AM	#7
Four_wheel_drifts Senior Member Join Date: Apr 2016 Drives: Whiteout track car; lava donor Location: Portland, OR Posts: 244 Thanks: 85 Thanked 64 Times in 40 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Purist: Side point for the younger players: When your car doesn't feel right, get it checked. Could've ended very badly for me. Totally! Turns out the 22mm nut on aftermarket rear toe link was loose. When I was under the car, I didn’t have enough leverage on my own to move the suspension. Once I got a helper to grab and shake the wheel back and forth with me under the car, it became obvious. I check many nuts and bolts back there before every track weekend, but not those. ANOTHER point on the check list. Thanks for your help, guys. P.S. I checked the front ball joints first. They are tight.

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