Now that there is a variety of coilover systems to choose from, does anyone know enough about these to give some type of comparison?

Alot of people like nismo, but no height adjustability??

Currently available:
Nismo
HKS
Veilside
Cusco
TEIN
JIC

I want something that isnt rediculously stiff, but will perform better than stock and have height adjustability.

Suggestions?

 

The Nismo is not a coilover, just spring and shock.... If you do a search you will find the spring rates for all you listed with the exception of the Veilside. I believe all the coilovers also include the upper pillow ball mount (for the front).

The JIC (FLT-A2 I believe, and more of a track setup) is the stiffest, Tein is close, the HKS (LS) is the softest, the HKS Hyper II's are pretty close to the Tein's as far as spring rating.

If you want something that is adjustable and not too stiff try the HKS LS's or the Tein w/EDFC....

 

Anybody have more in depth info on the Cusco Zero 2 and Zero 2-R in English????

 

https://my350z.com/forum/showthread....o+and+coilover

https://my350z.com/forum/showthread....o+and+coilover

Here is some more Cusco info... basically one is adjustable, the others not.

 

Spring rates are listed eh. All I see are metric KG numbers. I'd love to see a unified listing for the top 5 coilovers and what the stock spring rates are, would especially love if said list was in LBS.

In any event, what is the conversion formula to convert KG to LBS. I tried a site that offered a conversion system, but the results made NO sense what so ever.

Does anyone have stock spring rate info?

 

1 KG = 2.205 Inches

 

Ok, that's a start, thanks. But with say, the Teins your running. They are 10kgf/mm front and rear. What is the formula to figure out how many lbs their spring rates are. Ok ok, I realize that Tein is a bad example to bring up cause their web site does tell you in lbs, next to the metric figure.

But I need to know how to do the formula for all the other makers. Once I know, I'll develope a data base for every single spring and coilover system I can get info on (H&R will NOT reveal spring rates so can't do them) and do a post showing spring rates in lbs. I have a set of 350Z springs and if no one know's the stock spring rates, I gotta send them off one of these days to be tested to find out the stock spring rate.

 

As soon as I get my Zero 2 I will post a review. They left Japan last month on a container shipment.

thanks,
Greg

 

To convert Kg/mm to lbs/inch multiply by 11.52.

Ex. 10Kg/mm x 11.52 = 115.2lbs/in.

Here's the conversion if you are interested

1 kg/mm x 25.4 mm/1 inch x 1 lb/2.205 kg = 11.51927 lb/in

 

veilside suspension is made by Kei Office, so i'm sure it's pretty good too.

 

Just multiply by 56.

10k X 56 = 560lbs

Stock 347lbs front 419lbs rear

Cusco z1/z2
(9k)504,(10k)560,(11k)616,(127)672 front & (7K)392lbs rear
NISMO 448lbs linear front and 504lbs rear progressive
Tein Basic 504lbs front and rear
Tein CS 392lbs front and rear
Tein Flex 671lbs front and rear
Jic FLA-2 350Z 560lbs front 672lbs rear
Jic FLA-2RS 350Z & G35 coupe 869lbs front 1008lbs rear
HKS hipermax LS 350Z 448lbs front and rear
HKS hipermax II 504lbs front and rear
Tanabe PRO S-0C rates unknown
VeilSide Standard Coilovers 350Z rates unknown
VeilSide Pro Sports Coilover 350Z rates unknown

I got some that list from another post.

Murray

 

got the HKS and love them...hypermax 2 version
height and dampening adj...

 

Are they a good stiff ness? As in not too stiff?

How much did you pay?

Murray

 

very nice ride when you adjust em down, and can also be stiff...personally i run medium all around. with setting @ <12 feels better thn stock.

paid ~1500

 

Ive got the HKS LS+ which have adjustable height and dampening. Im not sure what the spring rates are cuz everything is in japanese

Using the medium dampening setting (15 out of 30), I can tell you the overall ride is very similar to stock, but the handling is much better.

 

DJK...where did you pick up the LS+ coilovers?

i didn't think that they were out yet.

chad

 

I got mine through Sprewell Racing in San Gabriel, CA. Their phone number is 626 309-1771, ask for Frank.

You can check out some pics of them installed on my car in this thread:

https://my350z.com/forum/showthread....threadid=54224

 

I have the TEIN Flex with EDFC. I love this setup. The coilovers aren't as stiff as some others like the JIC but I have learned that too stiff isn't that great for traction on a faster surface autocross track. I learned this through driving practice and the instant adjustment by the EDFC made my life a helluva lot easier by easily being able to play with suspension settings...that rear strut bar would make manual adjustment a bear.

 

Whoa, the HKS LS dampeners cannot be adjusted, you must be talking about the hipermax II, big diff between the LS the the II's. The valving between the two systems is quite different, on the soft side or luxury biased for the LS. Of course the LS systems "springs" can be adjusted.

 

Sidenote on the flex rates vs the Jics.
F/R spring rates
672*/672*
*original kits were 560/560, most product reviews are based
on the 560/560 rates, buyer beware if your using these
review's to make a purchase decision.
Front to rear spring rate balance change VS OEM
350Z/G35 Coupe +94% front +60% rear (34% transfer to front)

Now same comparison for the Jic's
560lbs front 672lbs rear
balance VS OEM changes to:
350Z/G35Coupe +65% front +60% rear (transfers 5% to front)

Guess which setup I'd rather have, the one that moves less roll stiffness to the front, a lot less. Sway bars are to fine tune, not to overcome that kind of mismatch.