I've received a few emails and calls about what makes the ST Suspensions Coilovers a great kit so here are a few key points about the coilovers.

ST Suspensions is the owned by KW Automotive which owns KW Suspensions who is the OEM Supplier for MOPAR/VIPER and many raceteams around the world.

The ST coilovers are based on a KW V1 design. It does have a corrosion resistant galvanized housing unlike the KW stainless steel housing.



* Pre-Set Dampening by KW Engineers for a sporty yet comfortable ride quality

* Your street enthusiast looking to lower their car and maintain good ride quality

* Individually Height Adjustable

* Matched damper and spring rates

* Self centering dust boot for insured durability

* 5 year limited warranty

* Made in Germany


Pricing:

starting at $800 with free shipping

If you have any questions please ask away

 

This seems to be more advert/sales related, shouldn't this be in the marketplace???

 

I've gotten quite a few calls/emails from the forum so I figure I would post the information here for people to view.

 

What are the spring rates for a 96-00 civic, tender and main spring? What's the stiffest rate they can handle? Do buyers have a selection of rates? Have you dyno'd the shocks? What are they comparable to?

 

They have a PROGESSIVE springrate for the 96-00 Civics. We have not dyno'd these as we are just a distributor of ST. These coilovers are comparable to the KW V1 coilovers. KW Automotive owns both KW Suspensions and ST Suspensions. The only difference between ST coilovers and KW V1's is the housing. The ST has a galvanized housing and the KW V1 has a stainless steel housing.

 

Spring rates?

 

Let me see if I can get that info for you guys.

 

The picture you posted doesnt look like they're progressive springs. The combination of a tender spring and main spring make them progressive, somewhat. Looks like linear springs to me so they should have a measurable rate. Are they rebuildable/revalveable? Cost of rebuilding/revalving?

 

I will have spring rates in just a few mins.

 

Here is the actual product in the packaging. Working the spring rates

 

Front 350 lbs/inch
Rear 150 lbs/inch

 

The dampers use an insert system, so they are not able to be rebuilt in the traditional sense. There insert is replicable.

 

Are you able to order custom rates?

Those are pretty low.

 

I believe the shocks have more influence on the ride than the stiffness of the spring. The spring that comes with this kit works very well for street use. If your racing on the track then I wouldn't recommend these.

Unless the car is packed full of audio equipment or stripped down for weight then the spring rates are perfect for this model.

ST coilover kits are designed for each model car in Germany by the KW engineers.

 

I know that your just a distributor of ST but ST/KW didn't provide you w/dyno information on the shocks??? KW's a pretty serious company, they didn't provide you guys with this information since you sell their product???

 

For the street kits they don't give us the shock dyno info. If your really interested in the shock dyno info I wouldn't recommend this kit. I would do the 2way or 3way race kits since the dyno will be supplied during the build of your kit.

 

Indeed, 350/150 is very low. CTR oem rates are 240/240.

And aren't these $800?

 

Link for those?

 

Link for what?

OEM Civic type-r Spring rates are 240lb/in front and 240lb/in rear. That's how they come from the Honda Dealership in Japan.

 

REALLY?

 

Yes, that is correct:
https://honda-tech.com/forums/suspension-brakes-54/cant-find-civic-oem-spring-rates-2891427/

w/ITR factory rates being the same...

I knew I saw these rates somewhere, that was why I was thinking 350/150 just didn't seem right??? Super low...? But they're custom rates anyways correct? Is that an extra cost?

 

96-00 EX factory 165F/80R (P/P)
99-00 Si (EM1) factory 201F/99.8R (P/P)

based on that the ST coilover spring rate is better.

 

Well, no way, an aftermarket coilover is stiffer than the super soft factory rates of an econo-box.

That doesn't come as a surprise, but for $800 and having 300/150 rates that's extremely underwhelming. Even then it's only marginally better than the factory EM1 rates.
You can get a lifetime warranty with koni SRT and some Tein S. Techs and save $300. At the $800 price point you've got koni/ground control which is a lot more for that kind of money. At $800 I just don't see these as marketable.

300/150 is pretty light-hearted even for an entry level coilover. On a civic that's just not stiff enough in the rear to make a significant difference in turn in. The front rates are even too soft for a mild drop. The car is going to bottom out on dips with a 2" drop unless the shock is drastically overdamped for that 300lb rate which will cause a bumpy ride.

 

Which kit do you currently have on your car?

 

I think my biggest concern in this thread and your other posts TSS is the "KW" name dropping, sure KW is a great company... But just because ST is an umbrella of a fantastic parent company doesn't mean that they create a good quality product. It takes years of being tried and true, and thousands of countless supporters.

If this product was in the $500 range I could understand, but that price is pretty steep for what comes in the box to be honest. Bad spring rates, no adjust-ability...and $800. I can't help but feel like consumers are paying $800 because of a fantastic parent company. Which is not a way to purchase a product.

TSS you said yourself that you wouldn't use these for track use...but why would I spend $800 at that point? An aggressive spring/strut combo is almost 1/2 the cost and will DD me for the rest of my life. Koni having a lifetime warranty on their struts, Eibach having a million mile warranty on their springs...before I know it my children's children have gone old. And the car is still handling excellently.

Forgive me for questioning this product, but I need to understand why its superior...and not because KW is the parent company.

*Edit: you should think about biting a bullet and shelling these coilovers out to a couple of trusted customers who are willing to give an un-biased opinion. Its much more difficult for us (being HT) to take a strict sponsors word for a product thats not successful on our applications as of yet.

Just my $.02