So, I'm out in west Texas at the moment. Long open spaces, good roads, great scenery...life is laid back and good.
My 2008 xk vert has xkr shocks/springs installed and I love the way it handles.
I was under the impression that at 85mph the shocks switch to hard, I don't think so.
My reasoning is that while going through many, many high speed curves (100~120mph) the car was waffling a bit and also rolling outward a bit. Simply putting the car into S flattened the car out, reduced by a huge amount the waffling. The steering also was tighter.
So my observations of course, has anyone else heard or read that the shocks change from soft to hard at a particuparticular speed or combination of factors?
wj
also, the car felt quite good @ 140mph, on a 3 mile straightaway (for the entire length of it)

 

It’s a combination of factors, with speed being the primary. Here’s info from the service manual:

 

Thankyou
wj