bump steer in rear after lowering

[SYK]

Quick question on the rear bump steer.

1. Lowered IRS geometry, does it cause same toe change that happens to the front suspension? I would imagine it does

2. If it does such, is there a way to correct the geometry after the lowering the suspension such as a subframe riser.. (this only applies if the problem do exist. I am only familiar with few suspension setup and not sure how this vertical link IRS geometry responds to lowering).

Thanks,

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[BmacIL]

Quick question on the rear bump steer.

1. Lowered IRS geometry, does it cause same toe change that happens to the front suspension? I would imagine it does

2. If it does such, is there a way to correct the geometry after the lowering the suspension such as a subframe riser.. (this only applies if the problem do exist. I am only familiar with few suspension setup and not sure how this vertical link IRS geometry responds to lowering).

Thanks,

How much did you lower the car?

 

[SYK]

I only lowered 1 in but just want to know if this is an issue for people with lower setting that I do and if there is a kit to adjust it.

 

[jbailer]

The front is different because of steering. There is a change in the rear with deflection now that we have IRS but it isn't as noticeable because the wheels are straight and no feedback in the steering wheel. The impact would be on traction with the toe in/out but at 1" wouldn't be much impact on the rear.

 

[wildcatgoal]

There will be no issue in the rear with 1" drop. No additional parts required to align.

 

[SteedaTech]

There will be no issue in the rear with 1" drop. No additional parts required to align.

Very little bump steer in the rear of the S550, not like the Cobra IRS.

So no worries.

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