Hicas + Rack Spacers

[nato_wp]

I have fitted rack spacers to my thrash car, an S12. (No HICAS). I think they're the best thing since sliced bread.

I want to put some on my R34 daily, (dead stock) for parking type duties, however I'm concerned about the effect on the HICAS system, which I happen to like, and admire the engineering concept of - haters can leave my thread....now.

I understand the HICAS system only comes into effect at 60+kmh (can someone confirm/deny with evidence or reason?).

What are the controlling inputs for HICAS?

With this knowledge, I should be able to decide for myself whether rack spacers will have any detrimental effect on the existing systems of my car

Can someone point me to a COMPLETE workshop manual for an R34 GTT, I'd prefer sedan, but beggars can't be choosers. I have one copy, but it's mostly not there.