Nitron NTR: set lower ride height before fitting the shocks
Nitron NTR: set lower ride height before fitting the shocks
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Filos Hippos

Original Poster:

479 posts

248 months

Saturday 9th February 2013
quotequote all
Hello all,

just received my Nitron NTR's and would like to know how adjusting the collor on the springs alters the effective ride height when the shocks are mounted on the car.

Not sure this questions makes any sense... Let me try to rephrase:

If I put 10mm more pressure on the spring by turning the collar upwards, in what way does this affect the ride height, I suppose a 10mm "pressure-increase" does not necessarily mean a 10mm drop of the chassis.

See pic for reference how they are :


PS: To be mounted on a 2005 Tuscan II with 400 and 450 spring rates.

nawarne

3,127 posts

276 months

Saturday 9th February 2013
quotequote all
You're correct in saying that "a 10mm upward alteration" does not mean a 10mm change (upwards) increase in ride height.

You are changing the length of the hypotenuese of a right-angled triangle...As the spring/damper is angled from the outside of the wishbone to the chassis mount.

Yes, you are changing the road spring compression...but you should never have the road spring so 'loose' that under full-droop of the suspension, the spring is completely relaxed.
The best way of setting up is to get the car on a completely flat & level surface and alter the collar on each spring/damper unit to get the correct ride height.

The ride height is usually given as a distance from the surface to the chassis gusset at each corner. Ball-park figures are 140mm rear, and 130mm front...I'm sure others will debate these measurements.
Nick

Filos Hippos

Original Poster:

479 posts

248 months

Saturday 9th February 2013
quotequote all
Thanks.

Have you got an idea of how low the car would sit if I reduce spring load to the maximum, i.e., just add some tension to prevent the spring from sitting loose.


Toady1

1,621 posts

240 months

Sunday 10th February 2013
quotequote all
The best way is to just fit them and then adjust till you're happy with trial and error I'm afraid. I cant comment on the Nitrons as I've got Gaz GP's so I don't know the shock lengths, but I've adjusted mine to show about 10mm - 12mm of threads front to back and I'm quite happy with the way it looks, though am thinking of upping it a tad as the splitter scrapes speed humps now.