"Minx" Spindles and Bump Steer

[at the beach]

Recently, in another thread on this Forum, a member was looking for a set of "minx" spindles. He eventually located a set.

My question is, "What does installing a pair of these do to the car's Bump Steer?"

bt
at the beach

 

[0neoffive]

Hmmmmmmm ?

Recently, in another thread on this Forum, a member was looking for a set of "minx" spindles. He eventually located a set.

My question is, "What does installing a pair of these do to the car's Bump Steer?"

bt
at the beach

Simple geometry would infer that the wheel center now being further from the lower wish bone's movement, bump steer will be slightly affected by the more rapid angle change of the short arm upper. Just sayin' . . . .

 

[spmdr]

It changes

The Minx/Dropped spindle moves the wheel up compared to the lower ball joint/ A-arm.

Along with the wheel, the brake caliper and steering arm are moved as well.

When you change the relationship between the A-arms and the steering arm/ outer tierod end, bump steer changes (and other things change bump steer).

So, yes, the bump steer needs to be FIXED with the Dropped spindles.

If you want an extreme TEST/example of BAD bump steer, swap the steering arms on the spindles from side to side.

Reset the Toe in and take the Wild ride for a test!

The car will have a MIND of it's own, as far as direction control!

 

[MT Roads]

Had never heard of the Minx Spindles until now, much less been able to compare the differences between those & the orig Tiger.
Have to agree with those who have more direct knowledge.
Yep, if the drop spindles mount the steering arm in the same absolute place on the upright, as opposed to moving it relative to the change in height, then the tie rod angle changes dramatically relative to the A-Arms & introduces significant bump steer. Thanks for the clarification.