Quick facts about this coilovers setup:
- RS1 dampers, pillowball top mount included.
- Hyperco springs, 650lbs front, 525lbs rear...so around 11.5kg/mm front and 9.5kg/mm rear.
- Rear is true type, so can't directly compare spring rate on this vs OEM nismo ones.
- 21 clicks, single adjustment knob that controls both compression and rebound. (for this post, say 21 being the stiffest)
Honestly, if I was to pay full price, I would've spent another $800 or so to get their RS, with compression and rebound separately adjusted. But for $2500 shipped, and all hardware included (springs and top mount), I like it enough.
Another noob impression here:
As of today, I've driven the Z 4 times on this setup, but only the test drive on 11/16 Saturday morning gave me the feedback I need. I drove the car for about 2 hrs that early morning, with approx 1 hr spent looping that 5 mile section.
Impression is only my recollection of how the car reacted
during the corners, no heavy braking/corner entrance/corner exit impression here.
RS1, 265/285 RE-11: at either half or full stiff, the rear was planted. Not once did I have the same feeling I described when it was stock suspension w/ 265/285 tires. Full stiff felt a few bits stiff than stock, but the up/down movements of the car were more controlled...a tad bit softer around initial blow, but stiffened up right after, is the way I describe it. Somehow the rear was very planted, no wobble, never wanted to jump out of place suddenly, always felt like the rear tires had solid contact to the ground. It was the fastest I've driven through that section, probably won't be doing that again.
I turned it to full stiff partly b/c of slight rubbings against the fender liner when I pushed the pace over those dips and bumps. I needed to see how this spring/damper combo react to simultaneous high/medium/low speed damping? I like the performance so far. Full stiff is a bit punishing for normal city driving/cruise, but did feel good during the faster pace test drive. I've since then backed it down to 15 clicks all around. I really need more continuous seat time though, testing it days apart is just not efficient.