I did a search to no avail. I have them ordered already and will report back. Am expecting approx. 1.5-1.6" drop and will also report back on alignment issues and settings after install in a couple weeks when i get some time.

I recommend that at the very least you run coupe shocks with them, Z shocks would be best. Under no circumstances should you try and run non sport shocks with them at all. Of course Koni shocks would be best.

No one has them, for several reason's, they are the best performance spring you can get at this time, but that requires them to be run with a decent shock. Sport shocks should work, but I recommend carefully testing the chassis to make sure no hidden demon's exist.

"All that's necessary for the forces of evil to win in the world is for enough good men to do nothing.”
Edmund Burke

G35 6mt

I found a place that has a bunch of non-titanium RSRs in stock for $205 shipped. My sedan has the Sport suspension, so the RSR rates of 345F/417R are supposedly within 2 pounds of the Z stock spring rates. The shock travel of the rod is my only real concern as it would wear my stock sport shocks more quickly. However, guys are running 2" drop Tein S's on stock shocks with no significant blown shocks as of yet; so I'm hoping it'll be okay for awhile at least. Had an '03 Z and have no desire to keep the "bounce" inherent to those shocks. I guess I can spring for the Konis if the stock Sports can't handle the drop. Thanks for the response and your prior posts on other forums that pointed me in the right direction.

Your welcome. I do need to do a correction. Your going by the old oem rate data. I did a post where I corrected myself with new data. The correct oem rate's for the G35 sedan with sport is 314/342 (the coupe and 350Z are the same rates as well). This means that the RSR 350Z springs are
front +10% rear +22% stiffer then oem.

The oem sport shocks lack the Z shocks ability to contain weight transfer like the Z shocks do. You might want to consider using the oem shock mounts off the Z shocks, they have firmer rubber in the bump stop then on the sedan. Something to consider given that I found a tailtail ring of oil awfully high up both shock shafts in the front when I tested sport shocks with oem Z springs and they were only one the car for a few weeks. Of course Z and coupe shocks, including Koni's have short piston shaft's then sedan shocks.







"All that's necessary for the forces of evil to win in the world is for enough good men to do nothing.”
Edmund Burke

G35 6mt

Thanks, again. Now I have an excuse to order up some Konis. Am hoping that the higher rear spring rate will negate the need for a 350EVO rear bar to balance things out. Would you happen to know what G35C guys running RSRs and Konis are setting the rebound adjustment at? TIA.

Are the rates you quoted for the sport or non-sport suspension?

Sport, I'll have to find where I wrote down the non sport rates, but I do remember they worked out to be very close to 10% softer (shocks are likewise softer).

"All that's necessary for the forces of evil to win in the world is for enough good men to do nothing.”
Edmund Burke

G35 6mt

I just got the RS*Rs on. They are perfect with the sedan Sport shocks. No bottoming out. No porpoising like the Z. Just as comfortable as the stock springs, but dropping the center of gravity on the vehicle 1.6" all around leaves the front/rear bias alone as well as gives it awesome turn in. I had an S tune G Attack on my '03 Z and the ride was slightly rough with less of the classic Z bounce, but Z33 RS*Rs on a G35 sedan with Sport shocks only complements the original design of the car. My turn in is markedly crisper and the 22% stiffer rear bias spring rates dial out must of the inherent understeer. I rushed some speed bumps at 30 mph just to test the travel and strength of the Sport shock valving and there were no ill effects. No blown seals; nothing bad. These RS*Rs ROCK! They drop as much as Tein S's, but only have 1 coil of the spring dedicated to "progression" with the other coils being linear. They are currently in stock at Gruppe S for a sale rate of $185 shipped. Fear nothing, unless you try it yourself.

<P ID="edit"><FONT class="small"><EM>Edited by G_Monster on 07/03/04 08:00 PM.</EM></FONT></P>

Kind of dirty.


'04 6MT Sport Sedan

UR crank pulley
Helix test pipes
G35C midpipe
Z intake tube
Nismo Sport "dry" air filter
Nismo grounding kit
RS*R Z33 springs
Hawk HPS brake pads
Motul 600 RBF

291946-G35_RSR_springs.JPG

Looking good there. As time goes on keep us informed on how the stock sport shocks hold up/peform with those Z33 RSR springs.

04' G35S 6MT Ivory Pearl, Willow, Premium
Z-Tube / NFC Y-Pipe / Custom Mid-Pipe / 350 EVO Rear Sway

Will do. Already got a line on some 350Z Koni Sports for $680 if the stockers go South. FWIW, am hearing that the Konis on full soft rebound adjustment are perfect for RS*Rs.

'04 6MT Sport Sedan

UR crank pulley
Helix test pipes
G35C midpipe
Z intake tube
Nismo Sport "dry" air filter
Nismo grounding kit
RS*R Z33 springs
Hawk HPS brake pads
Motul 600 RBF

Wow- Your ride looks execelent with the RSR springs! It also looks from the pic that you have installed low profile tires on the stock rims. I have a few questions:
1. What Size/Model tires are you running?
2. The shift in spring rates should have made the steering more neutral- Did it?
3. Did you change anything about the sway bars or thier bushings?
4. How is the ride quality compared to stock?
5. Are those RSR springs the Down model or the TI-2000 model?

Any update on how the RSR springs perform? What did you do to correct camber? How have the sport shocks heldup?

any comments on the TI version? can get for 287, doesn't seem that much more, is it worth it?