Is there a spring out there that lowers the car no more than 1", helps with the bounce, doesnt hurt handeling ability, and u dont need to buy camber stuff to get the car aligned right?

Any info on good springs would be appreciated!

Thanks

 

RSR down springs

Unlike all the other lowering springs they are linear not progressive .6" drop

$215 from this forum sponcer (got my sway's from them)

http://www.gruppe-s.com/350z/zsus.htm

 

i thought progessive was better than linear?

 

thanks i was looking at the RS-R Down springs and they look like perfect.

Has anyone else had experience with these tho?

Easy to align to specs etc?

Thanks

 

Tein S-tech springs

 

why tho? whats your experience with these springs?

 

the reviews I hear, they have a good decent job. and offer a comfortable ride. I had the Tein Flex kit

 

They are a compromise between performance and ride comfort. When someone specifically say's "doesnt hurt handeling ability", they are usually the type of person that is not willing to make concessions or to trade handling for more comfort. Linear springs are superior in relationship to performance handling and at the limit behavior vs progressive. Now, when someone says I want something that rides better than stock and they show little interest in pushing their car hard, then progressive makes sense.
I push my car hard, I care about at the limit behavior and I know enough to not go to high with spring rates to avoid comfort issues, I will only run linear.


Here's a cut and paste from a previous post of mine that deals with some linear vs progressive issues

You know why that is? It's why, I would never run progressive springs on a car I intend on pushing to the limit very offten. The reason is, with progressive springs being dual rate, with a soft inital spring rate and a firmer final rate you have to look at what that means to the suspension in terms of "at the limit handling". That softer initial compression of the springs allows the car to roll more to get to the firmer final spring rate. Then that roll (or momentum build) hits the firmer part spring final rate. This puts a heavier load on the outside than linear springs because the linear springs would not have allowed as much roll in the first place. Now lets look at what can happen as the car rolls on the softer inital spring rate then hits the firmer rate. Most progressive springs don't have "seamless" transitions in rate. They change rate in significant steps as active coils bottom on each other. A sudden change in spring rate, while at the traction limit, can result in a nasty slide. And lets not forget that while doing steady state cornering that half the car is working on the firmer final spring rate and the other side of the car is using a totally different softer spring rate. Now what happens if you encounter a bump in the corner? What happens to the spring rates? Since they differ, from one side to the other, the chassis rotates around the roll axis... and the vehicle attitude changes/rotates differently than when in steady state cornering, also not a good thing. With linear springs, non of this happens. No sudden rate changes, no difference in spring rates from one side to the other side of the car while cornering, its always the same. All this is what I mean when I say, progressie springs are a compromise on performance for the sake of ride comfort.

Progressive springs can be made to work in very limited conditions where the parameteres are well known, like a specific road course where telemetry is constantly giving feedback to help select the right rates.....and the designers are experts on vehicle dynamics. Which given some of the spring rates I've seen used, their not always paying the R&D guys to well or its someones best guess it seems.

 

This why I am going with the Konis. They were specifically tested to work with the stock linear springs.

 

RSR down springs it is then

unless someone has had a bad experience with them?

 

has anyone had any experiences with gruppe-s.com?

Good site to order from?

 

[QUOTE]Originally posted by jmark
This why I am going with the Konis. They were specifically tested to work with the stock linear springs. [/Q

HMMM. I may be giving up too much if I go with the Tein Luxury Masters that are progressive like the Eibachs? Will the Konis(I'm buying them, no bs) be too compromised in my looking for a Sport Touring setup? I don't race, but I do like to run at 7/10ths on public roads, with the Z thats fast, believe me. If I can't do that, I'm may re-think my leaning that direction. Comments, please.

 

Boomer,

Why not just try the Konis out with no other changes then go from there. I know the install cost would be more.

 

Yeah, the voice of reason, thanks Mark. Waiting is always hard for me because it gives me too much time to think about alternatives. I have never regretted changing to a priemium shock and keeping my stock springs on any car I've owned and I really don't want to make a mistake on the Z. I've already had enough hassles with it.

 

so anyone have any experiences with gruppe-s.com or how about Z1auto.com?

 

The subaru guys give gruppe-s good reviews: gruppe-s

 

The one thing Konis with stock springs will not do is drop the car. You would still need to get different springs to give the car a drop if you wanted that. I think I will go with the RSR springs first (linear, slight drop, good reviews, good price) then if I still want more from the suspension I will add the Konis at a later time or sell the springs and go with a coilover setup. This to me seems like the cheapest route to take unless you want more flexibility from your suspension, then I would go with a coilover setup from the start to decrease install time and costs. The coilover that seems to be best for the street, yet is flexible enough for the track is the HKS Hypermax II setup. If I had the funds, I would go with these from the start.

 

Don't want to drop the car. Just fix the bounce and make it handle better. Konis + 350Evo sways should do nicely.

 

No drop. Konis to fix the bounce, perhaps adjustable sways in the future after the Konis settle in and I can spend some time with them. The bounce must die.

 

I've had similar experiences. Always had good luck with shock upgrades. I once had a bad experience with Eibach street springs (on a different vehicle - not the Z). Despite claims from Eibach, those springs were not matched to the factory shocks. The stock Z's ride is fanatasitic compared to what I ended up with on the other car with the Eibachs. I ended up removing them and upgrading the shocks instead. The result was better ride and handling than stock.