how do you properly setup coil overs?

Reading through this old thread has given me some good starting points:
http://www.306gti6.com/forum/showthread.php?id=142733&page=1

i have the same bouncy issue as mentioned in the previous thread, but mainly on large drops or speed bumps,
it feels as if the car is jumping forward or leaping over gaps, causing traction loss, whereas on the stock setup,
you would not notice it as much or just roll through it.

I have 3~cm of possible lowering to un-stiffen the springs and give the helper spring more play,
but this reduces the amount of strut vertical movement? how do you find the right balance of spring rate and vertical movement?

the rear end is just as important? the rear beam is "good" just aged, and like my old struts needing some work,
in my un professional opinion the rear struts need to be stiffened, or proper work to be done on the beam.


on spax the car is meant to be lowered 30mm~ i agree the back has but i get the feeling the front has actually been raised does any one have a proper height value to a known location i can measure?

i have also notice a lot more physical force is being placed on the body of the car, am i meant to stiffen parts of the car or it should hold fine?

By adjusting the location of the nuts the springs are more compressed higher ride height or less compressed lower ride height, pre and post weight tension?

I don't think so. The spring compression is the same, just the bottom of the spring is moved up or down and the spring moves the car upor down accordingly

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China D Turbo HDi daily charger
Black Rallye occassional toy

i probably am wrong, what i am getting at is the lower the nut the more upward shock the helper spring can absorb which is softer, instead of it being 90% compress. but in the adverse this lowers its downward force, but the ARB should compensate for this.

the height adjustment nuts, i will also need to look into the dampening rates as well.

oops right, SPAX RSX, Yes dampening is adjustable, okay start from scratch i know nothing, educate me.

Thank you, that is very helpful.

To clarify from before, my 30mm~ of play is the height i have available before i get close to my driveway when mounting the kerb, not my total height adjustment available.

would you have a rough height value at a given point on the car? so i know if it has actually been lowered or not,
the spax rsx are meant to be 30mm~ forced lowering then they have 30mm~ to 70mm~ in adjustment.

fair enough, within the next week or so my new team dynamics 1.2s and 50 profile, PS3s should arrive.
yea three fingers on most sides closer to 4 on some, but i think that is just because there was a few weeks between installation,
give it a while and they should settle, i will probably lower the front a bit, and definitely stiffen the rears.

You are adding preload on the spring moving the base up. If it's squashed the helper completely.
Just change the damping until you are happy with it.

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60 / 40 split, can this be done by measuring specific points on the car then calculating the differences?

or just use a level under the side skirt?