307 replies to this topic

[BigD]

Got mine fitted yesterday. Ride heights 120/125 fairly easily with a little spring play on the front when jacked up. Not too worried about it but I'll check to see if there's any collar movement in a few weeks. To be honest I was going to go slightly lower but I think it'll be better the way it is now.

Edited by BigD, 28 December 2015 - 10:48 AM.

[stu8v]

Went out for an hour yesterday, it seems pretty good so far. Where abouts have people got there damping set to?

[Ormes]

http://www.vx220.org...-street-series/

 

I currently use 10 from hard front 12 from hard rear as recommended by the person who did my Geo.  As per the thread above, this is way too hard.  I am going to try something different and go for 10 from soft front and 14 from soft rear.

Edited by Ormes, 28 December 2015 - 01:24 PM.

[BigD]

Mine came set at 20 from hard front and back and I've left it at that for the road. Feel fine like that to be honest.

[Matthew Bentley Racing Ltd]

I think 12 front and 14 rear on track will probably be about right (always from full hard) and many 14 and 16 or 16 and 18 on the road.

[BigD]

Thanks Matt, I'll give that a try.

[Captain Vimes]

I'm running closer to 25r/30f (from full hard) on road and it's very compliant. Track is closer to what Matt suggested at 12r/15f but I generally have the rears stiffer than front. Haven't tried running the front stiffer than the rear, maybe I'll give that a go.

[BigD]

So my 20/20 is probably OK for road then. It did feel nice on the short drive I had.

[thejoaoserra]

I've asked nitron what would the best solution be for the loose spring problem when lowering the car. "We can fit longer springs to combat this but these will need to be charged at £55+ VAT each."

[Captain Vimes]

I don't understand how longer springs would help. Surely if needs helper/tender springs?

[sford]

Would these

 

http://www.ebay.co.u...=STRK:MEBIDX:IT

 

plus these

 

http://www.ebay.co.u...=STRK:MEBIDX:IT

 

do? I know they are low weight springs but they only have to take up slack when unweighted. 

[Ormes]

I've asked nitron what would the best solution be for the loose spring problem when lowering the car. "We can fit longer springs to combat this but these will need to be charged at £55+ VAT each."

 

When asking the same question of them a few years ago i was told I needed to buy helpers + shorter springs at over £700!... which is more than I paid for them in the first place...

 

My springs are still not loaded when jacked up, but not so much that they are beneath the base of the collar.

[TFD]

My vx is 148mm all around when complete OEM. Fitted the nitrons and after adjustment this morning front is now 141mm with just 2 turns from lose spring.

Maybe it will drop till 140mm tomorrow after bedding in over night but cant see this drop down to (148- 20mm) 128mm...

[thejoaoserra]

I don't understand how longer springs would help. Surely if needs helper/tender springs?

If you have a longer spring you can pre load the spring at a bigger distance from the spring seat to the spring adjusting collar. 

 

My vx is 148mm all around when complete OEM. Fitted the nitrons and after adjustment this morning front is now 141mm with just 2 turns from lose spring.

Maybe it will drop till 140mm tomorrow after bedding in over night but cant see this drop down to (148- 20mm) 128mm...

 

I'll ask nitron if a 1 in longer spring would allow us to set the car to OEM ride height (140mm) without putting to much preload on the spring to avoid damaging the damper.

[TFD]

Checked again today. 6mm lowering on the front is max achievable without loose springs. Getting helper spring could lower more I guess but wont that harm the bumpstop/shocktravel? All can be done but I dont think the NSS was designed to use helpersprings. They would've fixef this from the start, right. The loweringbrackets from shop/parts are for the oem shock, correct? So they wont fit the wider top of the NSS. You could use the narrower top plugs but they were replaced with wider tops so thats also a no go.

[Captain Vimes]

I don't understand how longer springs would help. Surely if needs helper/tender springs?

If you have a longer spring you can pre load the spring at a bigger distance from the spring seat to the spring adjusting collar.   

My vx is 148mm all around when complete OEM. Fitted the nitrons and after adjustment this morning front is now 141mm with just 2 turns from lose spring. Maybe it will drop till 140mm tomorrow after bedding in over night but cant see this drop down to (148- 20mm) 128mm...

  I'll ask nitron if a 1 in longer spring would allow us to set the car to OEM ride height (140mm) without putting to much preload on the spring to avoid damaging the damper.

My understanding is this.. A longer spring will just change the point at which the collar sits on the shock body. For a given preloaded amount and (linear) spring rate the ride height will be the same. To reduce ride height you need to reduce spring rate or preload. As you can't reduce preload you need to reduce the spring rate. This is why you need helper/tender springs to achieve a lower ride height rather than different length springs. Longer spring would allow a higher ride height as you can increase preload more before running out of adjustment on the shock body but I'm not sure this is what you're trying to achieve?

[Matthew Bentley Racing Ltd]

I wouldnt panic about the fronts being loose too much. Main issue is keeping the rears in contacts. Fronts being loose doesn't worry too much.

 

With 17/17" wheel combo, 130/140mm ride height might be the lowest you want to go to keep the geometry at best. With 16" front wheel you loose some more height.

[TFD]

Running f142/r143 now with room left on the rear (read: more preload than front). Front could drop till 140 I guess whit no preload. Not gonna get near 130. Dont want to low for geo matters.

[Ormes]

I run around 125/130 on my NSS(1).  Rear springs are just about touching the collar but there is no preload at all.  Fronts aren't flush with the collar but aren't below the base of the collar.  When on 17s I was totally below the base of the collar when jacked up, which I was not comfortable with.

[Matthew Bentley Racing Ltd]

As long as the rears are touching your ok. So 130f and 140r sounds right.