Hks Coilovers

[GreddyGo]

Hey People,

I have a set of the HKS Coilovers that allow you to adjust the pressure of gas which will increase/decrease the rebound of the shock.

When I took them out I found there was very little rebound in them.

I have looked on the HKS website for any sort of specs for gas pressure.

Can anyone here let me know what pressure I should run in them Front and Rear??

Cheers

Josh

[Sydneykid]

Hey People,

I have a set of the HKS Coilovers that allow you to adjust the pressure of gas which will increase/decrease the rebound of the shock.

When I took them out I found there was very little rebound in them.

I have looked on the HKS website for any sort of specs for gas pressure.

Can anyone here let me know what pressure I should run in them Front and Rear??

Cheers

Josh

Hi Josh, the nitrogen is there to squeeze out the air bubbles that are generated when the hydraulic fluid flows though the piston/valves. The range to accomplish that is usually 30 to 40 psi. That pressure is so low it doesn't change the "rebound" (your terminology) enough to notice when fitted to the car. You might be able to feel a difference with your hand, but that's hardly comparable to 1.5 tonnes of car.

I should point out that rebound is the term applied to the extension of the shock shaft out from the shock body. Bound is the compression of the shock shaft in towards the shock body, more commonly called bump. Because compression of the shock happens when the car hits a bump.

Bilstein runs much higher nitrogen pressure than that, but the valving is designed to handle it. I wouldn't be running more than 30 to 40 psi, unless you have something from the shock manufacturer that says otherwise.

cheers

[GreddyGo]

Cheers for that SydneyKid, I will check the pressures over the weekend with a proper guage.

Thanks for the correction also!

-Josh