Adjusting dampening of HKS coilovers

4GTuner

Help Support 4GTuner:

ENGINR

ENGINR

Wannabe Racer
Joined
Nov 6, 2005
Messages
5,061
Location
Melbourne
I need to soften up the HKS Hyper D coilovers I have in the car. Anybody know how to do this?

I've had a quick look at them, but not having the car in my possession at the moment makes it hard to go out and fiddle with them. There seems to be a dampener adjustment knob at the bottom of the front struts, is this what I use? I don't think the springs are too heavy, but am wanting to rule the struts out first before looking at springs.
 
from memory adjust at the bottom on the front and top on the rear

they will adjust bump and rebound together i believe
 
HKS springs are hard as nails unless you odered specific spring rates than what come with them off the shelf
 
Yeah that's what I'm worried about. If the springs are too hard then I'll have to look at getting a 'softer' set. The front of the car is rock-hard beyond ridiculous.
 
ENGINR said:
Yeah that's what I'm worried about. If the springs are too hard then I'll have to look at getting a 'softer' set. The front of the car is rock-hard beyond ridiculous.
Click to expand...

They are usually pretty hard on the Hyper HKS model...my mate had them in his S14...they were borderline unuseable for road.
Theyre also an inverted design, theyre good, though hard to rebuild
 
Sorry about the wait. As George said, theres a knob on the bottom of the fronts and thats it for adjustment.

P1010299.jpg



The backs just have adjustment at the top. They also have the valve at the bottom but i'm fairly sure thats just for rebuilding/regassing but it shouldn't effect the stiffness.

P1010300.jpg


P1010301.jpg


P1010302.jpg


Hope this helps Shane

Looks like springs might be the only option.

BTW, Do you have the spring adjustment spanners?
 
vsthis said:
How can you tell if they need re-gassing? Should i get the pressures checked before i fit them up?
Click to expand...

Generally you will notice clunking because the piston will be plunging through the oil and creating pockets because of lost gas. This can be noticed more so when the shock extends.There should be around 10-14 Bar of gas inside, depending on make etc..
 
Thanks for posting those pics Damo, I thought those purple knobs on the bottom of the front struts were for dampener adjustment, I just wasn't 100% sure.

You raise a good point Jamie - I think I might have to get the gas pressures in my rear shocks checked, as one of the is clunking like a bastard.

Does anybody know any good suspension rebuilders they can recommend?
 
I think george knew of someone in the northern suburbs who rebuilt some HKS coilovers not long ago. I remember reading it in a thread here somewhere, just cant remember where!
 
ENGINR said:
You raise a good point Jamie - I think I might have to get the gas pressures in my rear shocks checked, as one of the is clunking like a bastard.
Click to expand...

If the rears shocks have spherical joint bearings at the tophats check them first, these are likely the most predominant cause of knocking noise, after that, look at gas pressures
 

Similar threads

I
Tein coilovers, wheels, tyres
Replies
3
Views
2K
Ian91
I
BMGTZ
EVO 7 GTA
Replies
2
Views
1K
BMGTZ
BMGTZ
S
  • Locked
FS: 2x HH VR4's + 4-bolt/EVO 0 gbox + other parts
Replies
10
Views
3K
stengah
S
dsm2evo
evo 1 rim offset
Replies
11
Views
1K
dsm2evo
dsm2evo
Bodman456
Boden's RVR HSGR
2 3 4
Replies
79
Views
13K
jengi
J

Latest posts

Back
Top