All the other instructions are in Japanese and aren't actually specific to the G/Z.
http://i270.photobucket.com/albums/j...pspjb112i8.jpg

Here's the chart w/specs off of Aragosta's page. Note the Z34 (370Z) recommended height is different so you may have to mess with rear shock length a bit unless yours is true-type in the rear and not OEM/seperate spring style. The front spring rate is also listed at 14K vs 12 for the G37 (CKV36 chassis designation on that chart). I know you can get them with true-type coilers in the rear as well as a either a solid pillow ball or rubber upper mount. I have the rubber uppers but the steering response is still as sharp as a high-powered laser. Turn-in is pretty instant.
http://i270.photobucket.com/albums/j...psbgqsa7ye.jpg

I'm seriously going to test drive a Nismo to see how bad the ride is! I've heard the IPL dampers are not nearly as firm as the Nismos. I always assumed, given everything else is the same, that both dampers were identical.

I haven't sat in a pre 2015 nismo but the 2015+ has a revised suspension that was reportedly less jarring

I don't know if they changed the spring rate or just improved the damping

Also, are you planning to get the SPL rear midlinks? If so you will need swift springs

The factory dampers leave something to be desired. Yes, they can be bone jarring at times on a bumpy road. With all the nannies turned off the car is very neutral. I wouldn't even be considering this if it wasn't for the bone jarring ride on rough roads. The factory VLSD is terrible. Replacing this may create some issues. Not sure. I am changing out the springs to Swift's, 12k front and 11k rears. I have the pillow ball top mounts with the rear shock adjusters mounted on the side. No need for drilling any wholes in the car. It is not a true type either.

Thanks Ape Factory, this helps me out big time.

I am not planning on the SPL mid links. If I make any changes in the future, I'll send the rears to AST for a true-type conversion and move the spring onto the shock. It seems to be too much trouble to try and get the components from Aragosta. They don't respond to my emails unfortunately. Maybe I just need to be more consistent, LOL.

And glad that stuff helped!

Not doing the suspension this weekend. Not physically happening.

Still under the weather? It may be awhile.

Yes, I did something to piss it off this weekend. Oh well, I will try again another weekend.

I was just browsing the SPL site and noticed they've updated the design of their midlinks: "Now with adjustable top hats to reduce spring misalignment!"

Rear Adjustable Toe Midlinks for the 370Z and G37 | SPL Parts

New Swift springs in the correct size arrived today. 12K front (10in/65mm) and 10K rear (7in/65mm). I ponied up and got the SPL Midlinks for the rear. I should be installing by next weekend. I hope.

don't forget to grab some thrust washers from swift too before you start taking stuff apart

solves the popping issue upon compression

i only had the noise from the rear, so one pair was enough. can do front and rear if you want to be safe

The question for the day is "Are my MidLinks going to arrive today?" They say 17th delivery date on he tracking.

Oh yeah, Midlinks are here.

Working on it guys. I had to come back to this thread to get the measurements for the front struts. I just swapped out to Swift springs.

Well, I got the front struts ready to go. I had to stop working on the car due to other things needing to be done around the house. I am wondering if I will have enough time to install everything tomorrow and have it ready to go Monday. Dang it, I may have to wait for the complete install until next weekend.

Fronts are on the car. I am working on the rear.

did u get those thrust washers from swift? made a massive difference, completely eliminated clunk on compression (swift + aragosta + spl midlinks)

i didn't need them in front, just in the rear. Fronts are pretty quiet without them

I didn't even have to ask for them. Josh at Kamispeed hooked me up. They were in the box with the midlinks.

Done!!!! Time for an alignment. The only issue I had was with the Rear midlinks. I am just about out of adjustment to go down. I used a 7in. spring. If you want to go real low a 6' spring will be a must. When I first adjusted the rear spring height it was a sight. I had it in the middle of the adjustment. My car looked like a 70's throw back with air shocks on the rear.... LOL Her butt was in the air. The ride is actually softer compared to the Nismo suspension. I am at 14 clicks out of 26 for the front and 12 clicks out of 24 for the rear. I may need one more click for the rear. Hotchkis front sway bar is on also along with all of my SPL parts. Upper control arms, rear camber arms, Midlinks, and front/rear sway bar end links. I am going to drive her for a couple of weeks, then schedule it to be corner balanced.

i dunno why anyone would go with a 7 inch spring, send that **** back

monster truck stuff

Charles at powertrix was saying the 6 inch is best for virtually any set up

the midlinks have height adjustment on top of whatever coilovers give

Read the Midlink thread. Big discussion on what spring to use. I am good with a 7in spring. I do not want to be but just a little bit below stock. If I go with a stiffer spring I will change it out to a 6in.

Alignment is done. I only have one issue. I didn't get the passenger rear top spring perch set correctly. Under load the spring is not straight up and down. This is causing some occasional spring noise. I will get it squared away next weekend.

i've seen that thread

i think its insane to want to be that high, this is a damn sports car

with double adjustable coilovers travel shouldn't be an issue

He is running big a$$ tires front and rear...and doesn't need any drop at all. Pretty much every coil over will drop you an inch at full height of the coil over adjustability. Like he said, he change them out if he doesn't like them.

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Just think of it this way. If I want to turn into a complete REDNECK I can adjust the rear to be way up in the air. You know, stick the my rear end in the air for everyone to kiss. :)

I squeezed about 3/4in. of drop in there. :) The outside of the rear tire is close to the fender. I have to keep my rear camber at -1.6. NO room. It was like, OOO that is close.

LMAO... that is cutting it close!

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The dampers are very good. I am quite pleased. It makes me wonder what a set of Motons are like. If you are buying coilovers, buy as much as you can afford.

I got in line for a corner balance today. The shop local to me is very busy. It takes a bit to get in.

The upper spring perch is squared away. The car is riding great. I have to watch my speed. It is smooth but firm. No bone jarring ride anymore.

That's awesome, glad you got everything in and working! My front dampers took about a month to "loosen up" a bit, the rears took substantially longer, like six months of daily driving. Right out of the box, they're pretty firm.

Very true. The Aragostas are one of the few that'll allow for ABOVE OEM height if you so desire. Everything else drops you an inch or more below stock height. I can't run any lower (less than an inch drop front and rear) or I can't get in my garage or navigate the less than stellar roads in my neck of the woods.

Oh, yeah. I am pretty darn happy. I am at 14 clicks front and 14clicks rear. The compression is great, not harsh at all. The rebound is why I had to stiffen up the dampers to get rid of the bounce. The car is firm but very smooth. I have to watch my speed now. I'll be cruising along on the interstate if I am not careful. It is amazing.

I have to echo the praise for the Aragostas. I've got the Type-S w/ full pillowball mounts

Ride is more than tolerable, just like stock on a 2015+ Nismo.

Tons of adjustment. I could go lower if i wanted, and you can go higher than stock like said above. Just an amazing range.

I am still waiting on the call to get corner balanced. Ugg, I may have to go to Z1.

I added another click up front for a total of 15+. I am also noticing 2 things of concern. I may need to go up to 13k springs up front and 11k for the rear. Under acceleration from a stop the rear is squatting too much for my liking. On a hard turn the front dips more. It is glued to the pavement which is good. I may drive it to Zdayz before deciding if I need to upgrade to stiffer springs. I am ordering my Wavetrac dif on Monday. This may also change the handling some.

My springs are 13k front and 10k rear. You are running taller and heavier tires so that will make difference as well. The you are going to notice a that you are more connected and you may need to stiffen up the front as you will have more push for the rear. I made my change after getting the diff as well.

I think I'm at 15 clicks front but only 8 rear. I find the rear has a much "firmer" feel to it than the front. I have some truly sh*tty roads here and I can't run the rear dampers much firmer and still have a comfortable ride. On normal roads it wouldn't be an issue. I actually have thought about lowering the spring rate in the rear.

Yeah, the interstate I drive to work on is horrible. I have been stiffening up due to the higher speeds and bumps. I get a small bounce. I have got that cleared up now. The faster I would go, the more I noticed it. The ride is still way more comfortable than the Nismo suspension. My goal is to improve the ride and improve the handling at the same time. This has been tough. So far so good. I have been driving some of my favorite corners. So far the handling has improved.