Constant or inconstant

[Singapore stag]

Hi, when rear springs break it is normally the pigtails I believe.
So would it be advisable to fit constant rear springs? The ride would be minimal as regards hardness over bumps and normal driving would it not?
Whats the general opinion RE this issue.
Rgds

 

[ph001]

It is normally the pigtails yes, but none of the alternative non-oem parts seem to fail such as Eibach so I think it’s probably more a material problem.

 

[King Nebuchadnezzar]

What do the members normally go for constant or inconstant wire.
Cheers.

Edit...spelling correction.

 

[scootr]

I didn't know the answer so I googled it and found this bit:
Constant Wire VS Inconstant Wire Suspension
One structural consideration creates a divide between the types of suspension springs out there. There are constant wire springs, which are manufactured using wire with the same diameter across the whole length of the spring, and there are inconstant wire springs, which have a wire diameter that varies across spring length.

In terms of ride variation, inconstant wire springs provide more options since they are considered to be two springs in one. Assuming low or optimal vehicle load, the low compression results in “soft” springs, but when the vehicle is at full load, these springs become stiffer. The progressively rising spring rate guarantees stable road holding irrespective of the vehicle’s load.

Inconstant wire springs also have the following advantages:

They eliminate the banging of springs under heavy load
When given the proper surface coating, they cannot be damaged easily.
Source Birmingham Springs

Given this info is correct it seems an easy decision.

 

[King Nebuchadnezzar]

When given the proper surface coating, they cannot be damaged easily.
Source Birmingham Springs

Given this info is correct it seems an easy decision.

I agree. Just one thing though.... the load in our cars would not exceed more then 2 persons, as opposed to a five seater car. The load would vary according to the number of occupants.
If that makes sense.

 

[Jembo]

I know with Eibach’s the torsional rigidity is lower/softer at the back, higher at the front as in their opinion the OEM rears are too hard.

Maybe this softer tension is what makes them last longer.... though my OEM tears lasted to 63k & are still not cracked before being replaced.

I can only comment having fitted the Billy B12 kit the shock/spring kit has made a huge difference, though reverted to stock front springs as just too hard for Kent pants roads

 

[firebobby]

When given the proper surface coating, they cannot be damaged easily.
Source Birmingham Springs

Given this info is correct it seems an easy decision.

I agree. Just one thing though.... the load in our cars would not exceed more then 2 persons, as opposed to a five seater car. The load would vary according to the number of occupants.
If that makes sense.

That depends on what you put in the boot. I remember one member on here who had a chest of draws hanging out the Rsend. He is a porkster owning mod now.