307 replies to this topic

[TFD]

I've just finished installing mine. To get the front at 120mm I had to wind on a tiny amount of preload on the springs. To get the rear as high as 130mm I had to put a LOT of preload on. Something like 13 full turns of the collar to the point that there isn't much thread left on the damper body. Is this going to be a problem?

 

So minimum pre-load will allready result in a lower front height, correct? Want to lower to max 15mm at the front.

Will get my car on a platform bridge for the best meassurements when putting them on.

[Matthew Bentley Racing Ltd]

13 turns is what it is. If that's what is needed that's what you have to have. Doesn't sound crazy to me

[DaveyC]

13 turns is what it is. If that's what is needed that's what you have to have. Doesn't sound crazy to me

[DaveyC]

 

I've just finished installing mine. To get the front at 120mm I had to wind on a tiny amount of preload on the springs. To get the rear as high as 130mm I had to put a LOT of preload on. Something like 13 full turns of the collar to the point that there isn't much thread left on the damper body. Is this going to be a problem?

 

So minimum pre-load will allready result in a lower front height, correct? Want to lower to max 15mm at the front.

Will get my car on a platform bridge for the best meassurements when putting them on.

 

Yes, that's right.

 

For the fronts I loosened the collars until the spring could just move a tiny bit, then tightened them one turn. Once on the car I only needed another turn each side to get the car to 120mm (with 16" front wheels).

[stu8v]

 

I've just finished installing mine. To get the front at 120mm I had to wind on a tiny amount of preload on the springs. To get the rear as high as 130mm I had to put a LOT of preload on. Something like 13 full turns of the collar to the point that there isn't much thread left on the damper body. Is this going to be a problem?

  So minimum pre-load will allready result in a lower front height, correct? Want to lower to max 15mm at the front. Will get my car on a platform bridge for the best meassurements when putting them on.  

Yes, that's right.   For the fronts I loosened the collars until the spring could just move a tiny bit, then tightened them one turn. Once on the car I only needed another turn each side to get the car to 120mm (with 16" front wheels).

You got a piccy of how it looks now?

[BigD]

Davey did you have ballast in the car too?

[DaveyC]

No pics yet. Will try and get one later. I stuck a load of garage equipment and some water containers in there to act as ballast.

[BigD]

So in summary, mainly for me.

 

More pre-load will raise the car less to lower. Obvious.

 

Front - Minimal preload will already give 120mm - so if you want to go lower there will be no preload - in other words you can't really go any lower? (Not complaining but just clarifying in my head, these are the street series so not designed for full on trackwork, understandable that they would work on standard ride heights)

 

Rear - Needs a lot of preload to get 130mm (13 turns ish) - so plenty of scope to go lower.

 

[stu8v]

Bolt just turned up here.

[DaveyC]

So in summary, mainly for me.   More pre-load will raise the car less to lower. Obvious.   Front - Minimal preload will already give 120mm - so if you want to go lower there will be no preload - in other words you can't really go any lower? (Not complaining but just clarifying in my head, these are the street series so not designed for full on trackwork, understandable that they would work on standard ride heights)   Rear - Needs a lot of preload to get 130mm (13 turns ish) - so plenty of scope to go lower.  

Yep. That's right in my case.

[Haston]

I'm going to set it till the spring is just held then go up or down from there.

[dylan390]

I have never quite figured how the spring seats don't unscrew if there is nil preload.

[Captain Vimes]

My NSS were originally set with loose springs (previous owner) to get to 123/115 height. They never unscrewed themselves. I guess the number of times the spring would become unloaded is very small and even then there's no reason for the collar to spin, especially once the threads are covered in road grime..

[export001]

my bolt arrived yesterday woo

[BigD]

That's good to know as that's roughly where I wanted mine to be.

[TFD]

To get things correct: The more preload, the higher the rideheight? 

I.o.w.: More preload pushes the shock more out hence the higher ride?

[ciderbooze]

My bolt has arrived, all ready to go. As the brackets are painted I assume this negates the need for duralac?

[stu8v]

How close are they shocks to the top suspension arm? I think I will have to look at maybe increasing the caster to gain clearance.

[thejoaoserra]

My bolt has arrived, all ready to go. As the brackets are painted I assume this negates the need for duralac?

Put duralac between the chassis and brackets surfaces. Can't hurt and some paint can't inhibit corrosion between two different materials (galvanic corrosion). And that way water won't get in between chassis and bracket surfaces.

[thejoaoserra]

How close are they shocks to the top suspension arm? I think I will have to look at maybe increasing the caster to gain clearance.

Do you know what and how are the handling characteristics affected by caster? Is bump steer one of them?

Edited by thejoaoserra, 20 December 2015 - 02:24 AM.