Hey all, I thought I had it figured out with the whole coilover choice and decided to stick with Jic FLT-A2 and was close to buying a set, that is untill some of the members told me about the quality of the suspension and the customer service that comes from the Jic USA team and how the whole thing is just 2 much trouble...so now I am looking for some feedback from all of you on the matter...

Anyone have with the setup above please share and anyone with other setups like Zeal, Tanabe, Cuzco, Tein, HKS, Kei Office and etc...Please share the prices, options and personal responces on your setups and such....

I am personally looking for suspension that is tough, flexible, "rebuildable"(hope there will be no need), that can be abused and yet retain streetability, and separate ride height and spring pre load setup...Thanks...

 

Tein Flex or Zeal Function B6. Those are really your only options that meet the criteria you listed above as well as having reasonable to good spring rates. Give Rishie/Dana at Auto RnD a call.

 

I love my zeal B6's If you have crappy roads go with the street springs i have the hard springs and they are fine for where i live when driving around town but go somewhere with crappy roads like seattle or just on I-5 going thru seattle and life sucks. like rynberg said call rishie at auto RnD he's ARD T2 on the forum he'll give you a good deal

 

Thanks guys for the referrals. Zeals are top notch quality and offer the services one should look for when purchasing a coilover system.

Here are options from our site of what we offer: Still adding more stuff, more updates coming

http://www.autornd.com/catalog/index...a&filter_id=13

We're moving over to the Function Xs and X series completely now. So in order to receive a B6 coilover it must be ordered by Sept 15, fyi.

Please take a look at our site for more info. As a forum member you will receive special pricing. The website pricing is already at 5% below MSRP.

Thanks, Rishie

 

Hey Rishie, check your PMs...my car's finally back from Rick's.

 

Teins.....

 

Agreed Teins

 

Why were u switching to the X series and Tein...explain which setup and why u chose it...Thanks...

And what is so different with the inverted shock in front...

 

I have Zeal B6 and they are great for me. I have street spring rate spring and they are good for S.CA road but a little bit soft for autocrossing.

BC

 

Does anyone have actual pics of the either ZEAL B6 or TEIN Flex for the FD, "ctuall picture of the coilovers for the FD"

and how much did you guys buy your setups for...and again...what is so special about the inverted shock idea...Thanks...

 

For Double Wishbone suspensions like the FD you should not find inverted dampers. This is typically for Macpherson Strut applications like the FC and several nissans.

With Regards to the Coilover differences I'll list what I know to not be "relative". In order to compare certain things like ride quality, handling, etc... one will need to establish well described baselines for comparison. Without them the information will not yield positive results.

The first major differenece between the B6 and the Flex is that the

Flex = Twin Tube Damper
B6 = Monotube Damper

Flex = 10kg/8kg
B6 = 9kg/8kg or 11kg/10kg

Zeal uses a higher quality spring as well which will yield a better ride quality than that of other brands running the same spring rates. Chromoly Plated. DIV Piston - to separate Gas and Oil, prevents cavitation and the SWOOSH sound, PVS dial = adjuster with window in it so you can see your setting.

All Zeal Coilovers have shock dynos we keep on file in the event valving wants to be changed or modified.

The B6 has a chromoly plating, is totally custom valvable should your desires change for the future.

The most important thing to ask yourself is what functions you have for the vehicle now and in the future, as well as how long you expect to keep the vehicle.

There are many other advantages to a monotube damper over the conventional twin tube dampers. If you are unfamiliar with them please mention it and i will briefly explain a few of them.

 

This is for a NSX but similar to the FD. Externally they basically look the same:

B6 with Basic Springs. Now comes with X coil spring.


PVS Dial:


X Coil Spring Picture on coilover:


I have a spring dyno somewhere of the new X coil showing how it remains very linear from minimal stroke compression almost all the way to coil bind. I'll look for it later.

Rishie

 

Thanks alot man, i am somewhat new to the whole idea of coilovers and cant say i know all the tech specs yet, but i know quite a bit, and for whole comparison of the twin vs mono tube, heard mono is metter and none of the noise...and what is the difference with the x coils, is it cuz they are more linear(better quality), and from what i have researched so faar 10kg 8kg is the optimal spring rate on the linear spring setup but i seem to want to go with the B6 but 9kg 8kg, how does that differ in term of handling and performance...and what is so special about 16 vs 6 ways of shock adjustment isnt it the same, just wider travel...correct me please...and for the subject of what my needs are:

I live is a semi good road area, speed bumps, some roads have slight tears and holes, and sudden elevations due to repavement...thats for the street, as for performance i like drifting and autocross and sometimes drag for fun, solo, so just want to able to do all sworts, flexible setups is what i want, will B6 make it happen I am planning to keep the car hopefully for a long while...unless someone totals it...Thanks...

PS
Can u shoot me a PM with the price for the B6 shipped to 20109 while i got you reading my post...lol

 

B6 will definitely make it happen. Shooting you a price right now.

Thanks, Rishie

 

Thanks man...checking funds...lol

Still need answers on ^^^^....

Thanks...anyone...

 

Ok so regarding the number of detents of adjustment, more doesn't mean better. The Zeals have a very broad damping range and because there are fewer increments of adjustment you will feel a noticeable difference between each setting. This may not be the case with a Tein, JIC, or HKS because the detents are so close together. For the lamen a 6 way adjustable damper is plenty to acheive positive results and in fact might be easier to setup.

With regards to the spring quality, yes it is more linear for longer periods of time so the damper valving can be matched better to result in better ride quality as well as providing more consistent feedback and response while driving aggressively.

Zeals will allow for a very good balance, in 9/8 setup this is a good compromise for your varying functions.

To compare Twin tube vs. Monotube:

Here's a link to some info I posted a while ago with references to where i got the info as well:

double-tube shock absorber:
An older design of hydraulic shock absorber using two concentric tubes, one serving as the working cylinder, the other as the reservoir.

single-tube shock absorber:
A common type of shock absorber with the working cylinder and reservoir contained in one tube.

http://www.eotb.ca/offroadtech/shocks/5.htm

This link will give a brief description and illustration of the monotube advantage.

http://www.iluvmyrx7.com/3rdgen/how...sion_tuning.pdf

Excerpt taken from doc above:
"Lets move on to shocks. Shocks are the 2nd thing most important in a suspension,
next to the tires. Tuning them correctly is almost as important as the kind of shocks you
have. There are two types of shocks. The first is the twin-tube low pressure shock. This
shock (standard Konis are twin tubes), as its name suggests, uses an inner and outer tube.
The inner tube has a piston and chamber filled with oil, while the outer tube has low
pressure gas (usually nitrogen) in it. The nitrogen compresses as the shock compresses to
allow movement of the hydraulic oil. The second type of shock is a monotube shock.
This shock has only one tube but usually with two pistons. One connected to the shock
shaft, and the other piston serving as the gas/oil boundary. As the shock is compressed,
the main piston moves oil against the 2nd piston which compresses the nitrogen chamber.
In both types of shocks, washers stacked upon one another are used to control the oil flow
through the pistons, thereby varying the amount of damping force the shock is putting
out. Monotube shocks (Koni 28/30 series, Penske, JRZ, Ohlin, Bilstein) are almost
exclusively used in professional racing. This is because the monotube shock has
advantages. These include a larger diameter piston (thereby being more sensitive to small
suspension displacements), better heat dissipation (the inner tube/gas interface on the
twin-tube shock is not a great heat conductor), and very little cavitation (when air gets
mixed in with oil, causing foaming or aeration)."

Rishie

 

Thanks...alot....^^^

 

I found a good clearer picture of the PVS dial. This is off a set of Zeal B2's we have for the FD we're clearing out. Check out our Vendor Subforum:

 

The reason to go with a monotube shock is that for a given body diameter the monotube can hold a larger piston, making the shock more responsive. The monotube also cools better since the oil is in direct contact with the exterior of the shock.

 

Thanks Damon for chiming in.

As Damon mentioned you will have a larger volume of fluid displacement because of the "monotube" aspect. It's not a tube within a tube, therefore the piston within the tube can be larger.

There are also heat and cavitation advantages as well which both Damon and I have explained above.

Rishie

 

Thanks giys you are awsome...

 

I have the Cusco Zero-2s. Quality is top notch.

http://www.napsusa.com/cgi-bin/napsu.../se=Mazda.html

 

I looked at those a while back...no idea...does anyone have feedback on the Zero-II...did anyone heard anything of them...

 

Has Cusco begun overhauling or valving services in the US yet? This would be a great thing to find out.

 

Interesting, price is high, must be decent, but than again its Cusco...brand name...

Anyone has these...feedback...