ARK GT-S Lowering Springs

[traska_rz34]

Not sure how “new” these are but I just got this email from CZP that Ark now has lowering springs for the Z. I’d be curious how these compare to Eibach and Swift options.

https://conceptzperformance.com/ark...-spring-nissan-z-rz34-ls0902-0123_p_84188.php

 

[wisner99]

I can vouch for these! Full disclosure, that's my car in those promo pics. I'm not sponsored or anything, but they took some measurements and promo media, and I got a good deal.

With that being said, I got these installed by Ark on January 16, and I love them. I only have these paired with a Hotchkis front sway bar, stock rear bar, and 20mm Z1 spacers (I got their non lowered spacers way before the springs). I can't compare to Eibach or Swift, but compared to stock these are way less bouncy. Steering feels great, way less jolting around over bumps. Cornering feels much better now, way more confidence and stability compared to stock. Really smooth when loading up weight in corners. Comfy enough for daily driving, that should be similar with any progressive rate spring. The performance lip scrapes a little more in driveways now, but ride height is good, not too low. Overall very happy with them, will see how they do at the track later once I get my CZP oil cooler installed.

 

[traska_rz34]

@wisner99 - lucky! Congrats on being the demo car and appreciate the write up. You have an identical setup to me with the 20mm stock spacers so I’m happy to hear you haven’t had any issues with the lowering springs. No rubbing?

And I agree - I’m very curious now what the differences really are between Ark, Eibach, and Swift at this point.

 

[kevinbonds]

@wisner99 - lucky! Congrats on being the demo car and appreciate the write up. You have an identical setup to me with the 20mm stock spacers so I’m happy to hear you haven’t had any issues with the lowering springs. No rubbing?

And I agree - I’m very curious now what the differences really are between Ark, Eibach, and Swift at this point.

Most of the springs you mentioned are a pretty close as far as the drop, the only difference really is brand loyalty and springs rates. I spent a while looking for springs and felt most of them were just too big of a drop, I want to close the wheel gap, but not have it too low. I picked up the RSR springs, I have yet to install, but that's also a good option for those who want a slight drop.

 

[wisner99]

@wisner99 - lucky! Congrats on being the demo car and appreciate the write up. You have an identical setup to me with the 20mm stock spacers so I’m happy to hear you haven’t had any issues with the lowering springs. No rubbing?

And I agree - I’m very curious now what the differences really are between Ark, Eibach, and Swift at this point.

No rubbing, and no noises. @kevinbonds is right that they will all be very similar. Swift springs do have a stiffer front, and slightly softer rear rate. I think I recall a thread where some members mentioned the Swifts felt a little too bouncy. Before I got the Ark springs, I was leaning towards the RSR springs. The softer rear with the RSR's probably pairs well with an upgraded rear sway bar, the stiffer rear with the Ark springs pairs pretty well with my stock rear bar!

 

[KrackaC8]

The ARK springs appear to be linear rate as they share the exact (linear) spring rates. The website states "Each spring has been engineered and tested with the best progressive/linear spring rate..." which isn't exactly clear.

 

[alutwon]

The ARK springs appear to be linear rate as they share the exact (linear) spring rates. The website states "Each spring has been engineered and tested with the best progressive/linear spring rate..." which isn't exactly clear.

best I could determine is that they mean dual rate springs, its just worded poorly

 

[traska_rz34]

@wisner99 how are you liking your springs after a month? Did you get an alignment after or no?

 

[wisner99]

@wisner99 how are you liking your springs after a month? Did you get an alignment after or no?

Still really enjoying them, been daily driving with no issues. I did get an alignment, just on stock arms.
Before and after here, done with me sitting in the car. Definitely get an alignment to not kill tires!