Uneven steering effort and pulling after alignment

[AdamG_BRZ]

In a gen 1 BRZ with stock suspension and had an alignment setup through a hunter alignment facility.
I made sure it was through a place with a good rep for doing these too.
I also opted for camber bolts so i could get equal camber on both sides as its non adjustable from factory.
From what i can see from the figures below it looks spot on? With zero toe up front.
(It wasnt too bad before the setup but was still off)


The seems to pull worse to the left now with quite a bit of uneven steering effort. Heavier to the right and very light to the left. Does anything below suggest this handling behaviour or am i possibly looking at worn steering components somewhere.

[E-bmw]

Well that looks straighter than a straight thing, so I guessing that what you are feeling is the effect of the camber of the road surface.

I am obviously making the assumption that the equipment was fitted & used correctly in that.

[paul_c123]

Tyre pressures
Bad tyre on one or both sides
Bas steering rack

[E-bmw]

paul_c123 said:

Tyre pressures
Bad tyre on one or both sides
Bas steering rack

All possible too, good things to check.

[sjc]

Sticking caliper ?

[Smint]

Steering rack ends adjusted in too far one side? Same number of exposed threads each rack end should rule this out.

Does the steering pull increase as speed increases, might point to a soft or worn suspension bush.

If none of the above suggestions bear fruit it can be interesting and informative to observe your car being driven from another vehicle, notice how it behaves over undulations and when crossing continuous white lines etc.

[AdamG_BRZ]

Thats a good point to check actually. It feels more stable as speed increases but does seem a bit twitchy on the left side over small imperfections in the road. It just seems to have reluctance to turn in to the right like theres too much caster in that direction- even though the figures suggest otherwise.

[AdamG_BRZ]

sjc said:

Sticking caliper ?

I wondered this too but all callipers seem nice and cool after a drive. Theres a bit squeaking going on somewhere but think thats low pads and would have thought a stuck calliper would still be obvious pre alignment.

[Dog Biscuit]

Is it worth asking the garage for their opinion; especially if they are specialists in this area?

Another thing could be uneven tyre wear from previously poor geo making itself felt now things are plumb?

You could try swapping the fronts over to see if the pull transfers to the right maybe