subwayseth wrote:
hey gt, just wondering what ones you tried as there appears to be three types ranging from soft(blue i think) to race(red?)

. say if i were more worried about performance than comfort what would suggest then?
OK, I haven't tried them but I have looked long and hard in to them.
Just to be clear here we are talking about the coil springs that completely replace the rubber donut, not coil overs or other auxilliary / secondary spring units.
Long story short.
I had a spring engineer look at make coils for me some 20 years ago. I gave him the rates, the travel, the space and the loads. He came back and said it couldn't be done with springs, have you tried rubber....funny about that!
I have seen these in recent times and I had hoped that spring technology had come along and that it could now be done. But No. It has not at all.
They comprimise rate / space by having a short travel. So if you fitted these and set your ride height 'nice' (not too low) at time of full re-bound travel (when the arms need to drop or full height) there is in-sufficent loading to the point where parts can fall out.....might give you a rude surprise.
Sad, but that's it. I still live on in hope.........
I like hyrolastic for the road. Real nice ride and very good handling.
<EDIT> for the record, I don't 'hate' the idea, quite the opposite, however until they can improve spring materials technology, and give full sprung travel, I can't see myself fitting any that are current available.
panthersteve, what type have you got fitted and how have you guys found the suspension travel and ride qualities?