I want to get some springs for my car, which of the springs out there seem to be the best of both worlds....meaning track/street driving.

I don't want to have to deal with alignment issue's, I am leaning towards the RS*R springs but figured I would post here first

 

RS-R are the best performing out of the 3. Hotchkis and tein probably would give you a better ride quality tho. I have RS-R and would recommend them...

 

I've been told the Hotchkis are the way to go if you are looking ar performance but don't want to sacrifice ride quality - and they totally eliminate the bounce in the rear while being better matched to the OEM shocks than the other springs you mentioned...

 

Hotchkis= 340 Lbs/in (front) | 330 Lbs/in (rear)
RSR = 345 Lbs/in (front) | 417 Lbs/in (rear)
S.Tech= 386 Lbs/in (front) | 402 Lbs/in (rear)

Both RSR and Tein claim stiffer spring rates than Hotchkis.

 

Which are linear?

 

The RSR are linear, and the higher rear rate helps correct the Z's tendency to understeer. And they're not that much stiffer than stock, so the ride doesn't suffer.

 

Combined with the Konis the RSR's should work great. How much of a drop?

 

KG/MM are the bset. heh,heh, i know where you can get some for a good price.

 

I have pretty much the same question that was asked in this thread. I was on the verge of buying the Tein S Techs, but I figured it was better to do a little research first. I wanna get a pretty good drop to eliminate my wheel gap (19's in the spring), and get a set of springs that give me decent performance, but my main concern is that I dont want a really rough ride.

For the purposes I state above, which set of springs would suit me best?

 

Sounds to me like the RS*R's are preffered.....do they take care of the rearend bouncing on the highway?

 

For some strange reason the RS-R springs dont hurt ride quality. They sortof slightly improve ride quality. But they definatly dont get rid of the high way bounce. They dont make it worse tho... I believe theres only 2 ways to get rid of the bounce. 1. Get a softer rear spring (increasing understeer, worse performance etc). 2. The best way of course is new shocks... Theres a reason the 2004.5 models have new shocks.


You said u wanted both track/street. Hard to do. Hotchkis probably give you a better street because of the softer rear spring improving ride quality. But at the track the RS-Rs should be better

 

I've contacted RSR before and their springs are progressive not linear. That is why they improve ride quality. Also at the moment I'm looking at a Australian company Whiteline which makes liner springs which are 364 lbs/in in the front and 448lbs/in the rear. The also have 20mm (0.8") drop in front and rear.

 

yes i knew that nuff. Theres only 1 or so coils that are progressive tho. So there pretty much linear (but not 100%)... But i guess that can contribute to ride quality a little...

 

Hotchkis are the only one of the 3 that is a true linear spring (although the RS*R isn't far off - only like maybe one coil is progressive) - give Greg a call at GSC and he'll explain to you why the Hotchkis are the best all-around spring on the market (I was hardcore RS*R until I learned that they won't help the rear bounce and that our stock shocks aren't designed to be used with a rear spring rate that stiff)

 

Vogtland makes a really nice kit for that application I have had the opportunity to use it in conjunction with the Tokico "D" spec dampers. It really is a nice set up. As for the alignment you will have to align the vehicle regardless of what springs you use. As any changes to the suspension will effect the geometry.

If you are interested in the Vogtland kit, have a look here,



www.psrperformancegroup.com/products

 

Im debating between the Hotchkis and the RSR right now.

What I am trying to get out of the springs is (obviously to lower the car some) and to soften up the ride a little and not sacrifice any handling.

My car is mostly a street driver, however I do take it aggressively on turns sometimes so I dont want to spin out because I chose the cheaper suspension.

For the purposes I mentioned above, which is the better option? Ive heard info pulling me both ways...

 

my kgmms dont have any highway hop.

 

I don't think you'll get what you're after with springs alone. The dampers in the early Z's deserve to be replaced, since they're the main problem. Konis work well, and complement the RSR springs perfectly. The difference in both ride quality and handling is dramatic.

 

I think that I will eventually get around to changing the struts/shocks, just that I am a little tight on money right now because I have to save up for rims in the spring (the initial reason for teh springs in the first place).

In terms of performance, the RSRs work better, and than I can go back and throw on some better struts and shocks later on to compliment them better and soften up my ride?

 

well heres my person opinion for what you want. If u arent going to change out the shocks (and u have an 03 like u do) get hotchkis. They will offer you a better ride while not sacrficing TO much handeling (especially on the street)....

if u do plan on changing shocks. RS-R... Its just a better performance spring than the hotchkis....