Anyone had experience with these springs? I just installed them on my Z for a moderate drop. Looks NICE! It's about a 10 mm avg. drop. I shouldn't have to worry about buying additional aftermarket suspension components. Input?

It was either these or the Hotchkis. I chose the Espelir because they are better quality than the Hotchkis.

I'm on Volk Progressive ME 9.5/10.5 +22, 245/35/19 (f, face I), 275/35/19 (r, face II). No rubbing either which is outstanding.

 

I'm not sure if they are the ACTIVE GTs, they're red though.

 

how are they better quality

 

i have them, I like them.

 

great ......can mr suspension from the world of handeling explain how there better it might make me not get the tvs system thats why lol.

 

Although I am not mr suspension, I know why I chose these over the TVS (Hotchkiss Sport) springs
1. Wanted stiffer springs front / rear to go with Nismo sways / Tokico D-specs
2. Both sides of car are the same height with Espelirs. ( some people have uneven rear height with the Hotchkiss springs.
3. 10mm drop (I drive the car on a daily basis, this was the most I was willing to drop, both for drivability issues and alignment/tire wear issues) Hotchkiss drop 15mm front / 19mm rear.

I am still tuning my suspension in (the D-specs), but so far I am very happy. I did ride for a week or so with just the rears, that was a nice combo also with the stock front springs.

 

I guess I don't really know why they are better in quality over the Hotchkis. I may have heard it from someone and it stuck with me. I do know however that they are less of a drop than the Hotchkis. My Z is a daily driver as well.

As for sway bars, doesn't the Z already have some? Because I'm never going to race my Z at the track, I'm thinking I won't need any aftermarket sway bars. I think the stock ones are good enough.

I did not know about uneven wear with the Hotchkis springs.

Gringott, do you happen to know how much higher of a spring rate the Espelirs have over the Hotchkis? I looked on the internet for specs, but I'm having trouble. Thanks man. Good to know others are riding on Espelirs too.

 

Granted stiffer spring rates alone do not make a daily driver unbearable,but it is definetly a important factor.The 2 statements just seem to contradict each other in a way.Just seems to me if your in there changing out the springs put it down more than 10mm,the 350z has plenty of suspension travel so the lowering amount of the Hotchkis springs is perfect.I hate the slammed look and totally agree with keeping the lowering to a degree so the alignment can still be set to within spec.The Hotchkis springs are right there at the limit so the factory spec are still achievable.Also lots of people on here have confirmed the ride is just as good if not better than the stock springs.I'm not flaming here just trying to point out a few things.

 

i have the espelir active GT on my ZR as well. mine is definately lowered more than 10mm avg...but i'm happy w/ the ride quality and looks of my car. alignment shows everything is w/in specs except for front camber which is off by -0.3.

 

I believe I have made a mistake. I think I have the Active Super Down springs from Espelir. Stupid me, I don't even know what I put on. I got confused because I thought the Active GTs were the red colored ones and the blue colored ones were the super downs. Oh well, looks nice either way. I've only been riding on these for a couple days now, but no complaints so far. Everything is tight and firm, just the way a sports car should be, yet not uncomfortable like a slammed vehicle. All is good. Springs are great!

 

Wow are those the ones that state a 10mm drop?maybe they meant 10mm from the ground. Cause that looks pretty low,and extremely sexy .How much did the ride quality change coming from stock to those,and what are the spring rates.

 

Perhaps I am confusing you, but what I meant was-
I wanted a stiffer ride, hopefully better handling, and minimum lowering.
The daily driver reference was to being too low. If I could have found springs that didn't lower at all, that is what I would have used. The 10mm is more than enough, I have to be more careful now of driveways etc than before. The Hotchkiss would have been my second choice, but I also didn't like how it leveled the car. Changed the stance, in a way.

 

I am in the same boat. I will probably go this route later on.

 

yup, it's suppose to be about 10mm...but it's more like 20mm in the front, 35mm in the rear. maybe it's the added weight of the roadster. it's a bit low for my taste, but it looks nice and i only have problems on really steep driveways. i feel that the ride is as good if not better than stock. u'll have to check their website for spring rate...i have the ESG055.

 

Im having a toss up between the espelir, Tein S Techs and hotchkis right now. I dont need the lowering I just want a stiffer ride. I am running the eibach pro set and I love them, but I am tired of scrapping speed bumps and such.

 

Not that I know anything extensive about suspension, but I think the Hotchkis are the softest. I think the Espelir are the stiffest. Tein in the middle. I don't know, I'm pulling stuff out of my bung hole.

On the same topic, do you guys know why stiffer springs wear out the stock shocks, and why? I've been trying to get answers on why stiffer springs wear out stock shocks faster. Doesn't the stiffer springs take most of the abuse and leave less for the shocks? Thanks.

 

yeah I know the hotchkis are clos eto the same spring rate as the stock springs so they are the bottom of my list. I am just looking for less of a drop so I added them to the list. RSR makes really good springs also, but I am not willing to pay that much for them. So I guess I am down to

Tein S Techs and Espelir for now. Unless a sponsor comes through with a good deal on RSR springs.

 

okay i made another mistake. i do have the espelir active gt, the one advertised as a 10mm drop both front and rear. I was told that the 10mm is incorrect. they are actually more, like 1/2". either way, they look great and feel great. the super downs are not sold in the us, only in japan.

 

You did kinda come up short on the driveability reasons in your original post.I do agree with you I do not want to deal with inclines and speed bumps with being to low.Sometimes its even hard to find an alignment rack to get up on if you drop to low.There are alot of different variables when shopping for springs to take into account and sounds like you did your homework and found everything you were looking for.I'm ordering the TVS 1 kit tonight,so I hope my homework pays off as good as yours.

 

You can get RSR springs right now for $199 shipped, making that choice not to far from the best net price for the Espelir's.

I get the point of wanting higher peak rates, but when the deal comes in the form of progressive springs, their's no way I'll take that liability on performance and at the limit behavior for the sake of the higher peak rates. Just where my line in the sand is drawn.

G35 sedan 6mt
Koni coilover front 448lbs
Koni shock rear 342lbs
Hotchkis front bar set to med
350EVO rear bar set to med
Crawford plen
Custom TD injen
HF cats
K&N panel
Rogue short shifter
Enkei RPM2
BfGoodrich KD
245/40-18
265/40-18