I'm down to the s-techs and the RSRs.

Stock = 347 Lbs/in (front) | 419 Lbs/in (rear)
S.Tech= 386 Lbs/in (front) | 402 Lbs/in (rear)
RSR= 345 Lbs/in (front) | 417Lbs/in (rear)

Eibachs are out since they lower more than I need to (at least IMO)

The pros for the Teins are that it is a progressive rate spring. I know that it's a con in some people's opinions but I'm looking to at the very least keep the factory ride since it's my daily driver.

The pros for the RSR is that it's a linear rate spring and it sounds like that will really help when I take corners at "illegal" speeds. The cons are the increased cost and I presume the increased harshness in my ride will probably be bad for my back.

Anyone that has experience with either or even both springs please let me know. I'm looking for a slightly lowered look and slight handling improvement for a low cost. Thanks for all the advice that has gotten me this far. This forum is great!

 

For whats its worth, RS*R is Japan's #1 spring manufacturer, and there is reason for that.

Both springs are great, and both has its pros and cons. RS-R designed the springs to be very streetable, and that is why you notice the lower rate in the front, but with the higher rate in the rear, your a$$ will stay planted!

 

I wonder what's the weight between Tein and RS-R. I have Tein S-TECH springs before, and it is very light, especially compare to Eibach, or spring from most manufuactures, but I dunno how light the RS-R is.

 

Koji,

Can you get me a better deal on the RSR springs so that my decision will be easier between the Tein vs RSR?

 

I have the RS-R. It actually slightly improves ride quality. But handeling has been improved greatly. I would definatly recommend them

 

How much did you pay for yours?

 

Were you able to bring the camber and alignment back to specs with the RS-R?

 

Z-Noob - your best bet is to contact one of our authorized dealers, or sponsors on this site. RS-R does not sell direct to the customer, but i am here to answer any questions!

 

Yes i was able to bring the alignment back in. I had a problem wit hcaster but then i found out it was just the place i took it to. I decided to take my car to nissan and they aligned it and everything is good

I paid $250 locally and $150 for the install...

The ride quality is just a tad less harsh.. The performance is definatly better tho... If you want to lower your car and get better preformance the RS-Rs are definatly a good choice

 

Koji,

Are the RSRs better for the stock shocks than a progressive rate spring? From my reading of the various spring threads, it seems that a progressive rate spring is better for ride comfort? What is your opinion on the two?

 

well im not koji but if u want to improve ride quality majorly then dont get the RS-Rs. U still feel every bump in the road but there not usually as harsh and they do help get rid of the bounce.

I dont think RS-R advertise these as helping ride quality in any way. They are performance springs to help with road holding etc.


If you want a more luxury ride the RS-R springs are not for u. But if u want a spring that has better performance and ever so slightly helps with ride quality then the RS-Rs are a perfect choice.

 

I have a 2004 350z. My understanding is the bounce problem was fixed in the 2004 models. At least I don't seem to think it bounces (more than a sports car suspension) when I am driving. I'm concerned that I will be adding the bounce when I lower the car. I want to at the very least keep the same ride (comfort) quality as the stock springs if not improve them. It seems that I should go with a progressive spring then, right? Thanks for all the feedback everyone.

 

not really. I believe (could be wrong) the stock springs are linear. I believe the RS-R will keep the same ride quality if not improve very slightly. Progressive springs like the EIbach will give u a better ride quality but the performance probably wont be nearly as good as the RS-Rs.

 

Spring rates between the stock and RS*R springs seem so close that I suspect there is negligible difference in ride quality. Handling is probably improved due to lower CG.

I'm waiting to find out what the new Euro spec suspension is supposed to be like. Spring rates supposedly increased over the 2003 and 2004 models.