I need help finding a suspension setup for my car. I know pretty much helpless when it comes to struts and pick out the right ones.

Currently i am looking into the D2 coilovers but don't know if they are right for me.
Does anyone have any experience with these coilovers?

My car is basically a 2g daily driver. It sees the drag strip once a week and the occasional highspeed highway runs. Gets scary when your boucing up and down at 150

Is this overkill for my current driving habits?
what other options would you recommend?

Thanks

it's funny because i have like a dozen customers running these right now (just 2g DSM's) and no one has done a review on here. No one has complained and we have gotten rave reviews but no one has posted anything. I'll try to contact some of them and get them to post.

They are great coilovers, from street to track use, they give you complete control over your suspension with adjustable shock bodies and all. Ofcourse coming from a vendor it might not mean so much so i will try to get folks to review them as soon as i can.

a good buddy of mine purchased a set of D2's for his GST spyder. Since he doesnt post much i'll let you know of his impression to me. He is very happy with the adjustability, i believe they are 36 way adjustable. He said he can set it to whatever he wants and as of now has a powerful stance yet smooth for the street. Exactly what he was looking for and he can set it to stiffer when he needs to.(i.e. drag racing, auto-x, etc.) I think he has the standard springs which come with the d2's but i heard martin(speed factor) can mix em up to your liking. I just set up my springs and shocks recently but only cuz i had things laying around my garage. As soon as my turbo-setup is complete, i will be purchasing a set of these D2 coilovers. Also, i'll let my friend know of this thread so you can have a first hand review.

Also if someone is going to post a review make sure along with impressions we get tech info such as spring rates and the like.

i'm glad these are starting to get out there. I have quite a few out and i'm trying to get folks to review them so you guys can all see the benefits to this setup. Getting them has been kind of a PITA but we should have a god amount of both 1g and 2g available in a couple of days. last time we got a dozens sets in they went in about 4 days so please do let us know when you are ready so that we can get you taken care of.

Again, you can select your spring rate. We even have some folks going with crazy 7/13 combos for drag racing. craziness, absolute craziness.

I have ordered about 2 weeks ago and should receive them in the next few days as martin tells me I've ordered them with 9kg/mm front and 7 kg/mm rear spring rates. I cant wait to first lose stock wheel gap and 2nd to have a fully adjustable suspension setup for the track. (maybe more the other way around )

I will make sure to write a clear,full and comprehensible review as soon as I have them installed.

PM me if there's somethin special you'd like to see in the review in case I dont think of including it...

Phil

So theres not too much feedback out there on these coilovers.

Guess i'll have to wait until Phil does his write up.
I basically want to know if they are noisey going over bumps, how hard or easy it is to adjust height, and your overall impression on them including costs.

Thanks for the replies

well i have recieved mine for about two weeks now, but i havent had time to put them in yet.... i have the regular spring rates that they come with which is 11kg/mm in the front and i believe 9 in the rear.... i am not sure when i will be putting this bad boys in since my car is down for a motor rebuild... to me theres no sense on putting them on especially when my car is sitting out in the driveway... but when i get them in the car i would definately will post up a review on them.... but right now all i can say is the quality of this coilovers are amazing especially for the money they are just great you can t beat it.....

Sorry I haven't had a chance to post my opinion of these coilovers. Work has kept me more than a little bit busy. I just recently got in my set of D2's for my GS-T Spyder. I went with the default springrates that they come with(you would have to ask Martin at The Speed Factor for more info regarding those numbers). When I opened the box, the individual struts themselves needed some adjustment to bring them all to an equal overall length. Shock length is adjustable separate of preload adjustment. Then entire lower body of the shock is threaded, with the lower mount having internal threads. To adjust height, you simply loosen the jam nut with the supplied hook spanner(s), and thread the lower mount up or down on the body. I set the height so that the jam nut for the lower mount was 2 1/4" from the lower spring preload adjuster on all 4 of the shocks. The spring preload adjusters however were all within .05" or so of each other. The damping adjusters were all set differently from the factory. It is a single adjustment at the top of the shock itself for rebound and compression.(not individually adjustable..rats ). I went ahead and turned the dampers all the way in to see the range of adjustment you get. From fully seated, to fully turned out is 6 turns total. There are more than 6 possible adjustments for each full turn, leaving you with more than 36 individual damping adjustments. There is a small collar that screws onto the top of the strut shaft with 6 graduated marks on it to give you a ballpark figure of where in the adjustment range you might be. I started 2.5 turns out on all 4 shocks as a baseline figure. Install was fairly straightforward; I was lacking my air tools that week, so I had to use hand tools, but it's nothing too strenous. The difference in length between an OE spring/strut assembly and one of the D2 units is quite noticeable. I worried originally about the shock being too short once it compressed, but then remembered that the rates of the springs are substantially stiffer, so I went ahead and installed them. Fitment was as good as OE. No parts had to be forced or modified to fit. After install, the ride height was about 2 fingers gap in the front, and about the same in the rear. It is 13 5/8" from the center cap to the fender for the number conscious in the front, and 13 3/4" in the rear. The car looks much better in this lowered state, and didn't have the really ridiculous drop associated with some lowering springs. As for ride quality, the car rides better than most lowered cars I have ridden in. Granted, I have never ridden in a car with full coilovers, but the feel isn't too harsh. It doesn't bouce over bumps, but expansion joints on the freeway are a little bit more of a pain in the ass. The only gripe I could make about the shocks, is the lack of down travel as opposed to OE. Potholes can jar the car a bit, but nothing too bad. I did change the damping in the front after a bit of driving, going to 3.5 turns out to stiffen it up slightly. The car does need an alignment however, so I am probably going to get it into the shop this weekend. As a whole however, I recommend these coilovers to anyone on a budget. You can't beat the quality and adjustability for the price I beleive. The Speed Factor is a great outlet for these and any other parts you might want. Martin and everyone there go out of their way to be helpful and assist you. If you have any questions, feel free to PM me or ask away here.

lookin hot eddie. Car looks great with the drop.

The gripes you mentioned are usual with any true coilover setup. The are far more agressive than the usual spring/shock combo. I am very glad to hear you are happy with them. As i mentioned the install is super easy, million times easier than a spring/shock and the results are untouchable.

While they aren't for EVERYONE they are definately for anyone looking to go for quality for a fair price.

Very glad you are happy, enjoy the hell out of them man, it's not every day you get to drive a DSM that can handle

Thank you for the kind words man, means a lot to us.

Marti

PS. Here is some food for thought for anyone who is looking into suspension that may not have the skill or means to do the work themselves.......
With springs and shocks there is a lot of work involved. Most shops will charge at the very least $250 for a spring install, when you factor that into the cost of any descent springs and shocks you will see that the value in a product like this is ideal. You can install it yourself in your drive way with a tire iron and a couple sockets.

Can we take the advertizing down a notch, please. That's what the Vendors forum is for.

- Jtoby

So are mine somewhere in that stack?

1992AWDDSM said:

So are mine somewhere in that stack?

Click to expand...

jtmcinder said:

Can we take the advertizing down a notch, please. That's what the Vendors forum is for.

Click to expand...

Agreed. A question for Martin, since you're selling these and have some hands-on experience: you can swap in different spring rates, but without shock dyno information, we have no idea if the shocks can handle them, or if they need to be revalved (or, alternatively, if they'll require rebuilding after a season of use). Or do you re-valve the shocks when you provide with new springs? (That's a serious question; it wasn't clear above if you or D2 adapt the valving to the new spring rates before shipping them out.) The shocks' capabilities are far more important than the spring rates, IMHO.

Also, out of curiosity: what are the default spring rates? (ie. someone just clicks "gimme now" and gets the box as shipped from D2)

(Sidebar: This is my biggest problem with most coilover "kits": lack of information needed to make an informed purchase. "Trust me, it's awesome, quality with a capital K!" doesn't fly with me. I like numbers, especially ones that I can verify, if I'm feeling ambitious. There's a reason people keep buying GCs and Yellows...known quanities, not a lot of surprises.)

logic said:

Agreed. A question for Martin, since you're selling these and have some hands-on experience: you can swap in different spring rates, but without shock dyno information, we have no idea if the shocks can handle them, or if they need to be revalved (or, alternatively, if they'll require rebuilding after a season of use). Or do you re-valve the shocks when you provide with new springs? (That's a serious question; it wasn't clear above if you or D2 adapt the valving to the new spring rates before shipping them out.) The shocks' capabilities are far more important than the spring rates, IMHO.

Also, out of curiosity: what are the default spring rates? (ie. someone just clicks "gimme now" and gets the box as shipped from D2)

(Sidebar: This is my biggest problem with most coilover "kits": lack of information needed to make an informed purchase. "Trust me, it's awesome, quality with a capital K!" doesn't fly with me. I like numbers, especially ones that I can verify, if I'm feeling ambitious. There's a reason people keep buying GCs and Yellows...known quanities, not a lot of surprises.)

Click to expand...

I completely understand what you are saying about the lack of imformation. Let me try to answer this as well as i can......

1. spring rate/valving: The D2's are ok with the factory spec valving to withing 1-2kg difference from factory spec rates. When they have higher differences they are revavled which is why those take about a week more to get due to air mail delivery time.

2. Default Rates:If you order through the buy it now they are 9/7 for the 1g and 11/9 for the 2g. We are woring on uploading a new site with the ability to plug in the numebrs you want but in the mean time people are just calling to customize.

3. The units are rebuildable.

Hopefully that answers your questions. I do apologize if it seems like i'm whoring the thread. Not what was inteneded. If anyone has any questions please just e-mail me by going to my profile so that the thread maintains it's "info and review" status.

thanks for the space.

Do those have upper pillowball mounts?

Almost every Asian supplier says you can alter the springs by +/- 2 kg. That still is not enough. To be useful, I'd like some numbers, such as the compression and rebound at a range of speeds and at a range of settings. (These are available for TEIN Flex, if you know where to look.) My experience with Asian shocks that adjust compression and rebound simultaneously is that they end up with way too much compression when cranked up to have suffiecient rebound. Even when you get the default rates, they often need to be revalved for autocrossing. (This is also true of Flexes.) At a minimum, I'd like to know what they change when they revalve for higher rates: do they increase damping in both directions, only increase rebound, or raise the rebound while dropping the compression?

- Jtoby

I ordered 9/6 kg springs for my 2g.
A bit lower rates than std. D2's, but still much more than the "lowering springs" that I am tolerating now. We'll see how they work.
I hope mine are also in the picture above.

cait sith said:

Do those have upper pillowball mounts?

Click to expand...

the 1g kits come with front camber plate pillow ball mounts, the 2g comes with a standard upper mount but can be used with just about any aftermarket pillow ball kits. (Tein, etc...)

jtmcinder-I want to double check some info before i post anything so give me a few hours and i will see how much detailed information i can get you about how they adjust for various spring rates.

I just received my D2 coilovers 5 minutes ago! (Thanks Martin! everything worked out great and customs were a joke!!! ) I'll have them installed and adjusted on april 6th. Then I will be able to write my review for it. From what I can see for now, those coilovers look like top quality!

Whoa I'm still shaking i'm too excited...

Lol... The UPS guy knows be by name and asked me how I was today and if everything was goin fine... gotta love those situations

With this shipment in, there's only my B&M shifter and buishings to come in and all my winter groceries will be home. Now the installation begins!

Cya!

-Phil

QCV8eater said:

I just received my D2 coilovers 5 minutes ago! (Thanks Martin! everything worked out great and customs were a joke!!! ) I'll have them installed and adjusted on april 6th. Then I will be able to write my review for it. From what I can see for now, those coilovers look like top quality!

Whoa I'm still shaking i'm too excited...

Lol... The UPS guy knows be by name and asked me how I was today and if everything was goin fine... gotta love those situations

With this shipment in, there's only my B&M shifter and buishings to come in and all my winter groceries will be home. Now the installation begins!

Cya!

-Phil

Click to expand...

Phil,

Glad you like them. I can't even tell you how much of a PITA it was getting them airmailed in. Customs agents alone cost us ridiculous amounts. Anyway, i know you will love them. Enjoy.

Marti

Ordered mine Feb 23rd and I still don't have a tracking number.

1992AWDDSM said:

Ordered mine Feb 23rd and I still don't have a tracking number.

Click to expand...

Thats what happend to me as well. I ordered them for an early birthday present...for myself , on feb. 25, and just got them on Mar. 17. A bit longer than Martin said , but thats ok, I can understand the customs trouble and timeframe.

I am just installing them today, and came into a bit of a mishap. When i was measuring for the ride height off the Tokico HP suspension, i didnt take into consideration the stiffness of the D2 springs and adjusted the height to match the Tokicos. WRONG . When i put the front back on the ground, it looked like i was goin' muddin or something. I guess i should have just stuck with measuring the actual ride height, not the shock body .

One question for anyone who has them or Martin. Can the shock height be adjusted without having to remove or loosen the lower suspension fork? Meaning, can you just loosen both the coilover sleeve and shock body sleeve, and spin the shock body like that with no load on them.

I should have these ready to go by tonight, so I'll have some reviews in the coming days.

prostreetdsmx1 said:

jtmcinder-I want to double check some info before i post anything so give me a few hours and i will see how much detailed information i can get you about how they adjust for various spring rates.

Click to expand...

How about raising the signal-to-noise ratio?

- Jtoby