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-   Suspension, Brakes, Drivetrain (https://www.miataturbo.net/suspension-brakes-drivetrain-49/)
-   -   I know Xidas are king, but what if you just want a slight improvement over stock? (https://www.miataturbo.net/suspension-brakes-drivetrain-49/i-know-xidas-king-but-what-if-you-just-want-slight-improvement-over-stock-102697/)

MindfulMoose 04-24-2020 07:41 PM

I know Xidas are king, but what if you just want a slight improvement over stock?
 
TLDR: I dont need the best or even almost the best. I just want a 1" drop with the same or better comfort and handling as stock
I've been doing my research for a while and read through a ton of threads on here, the "other" forum and the subreddit. Its clear this forum is more knowledgeable. My 1997 NA8 is currently stock. Its a street/canyon car on daily driver duty and is in need of new shocks.

This is what I have gathered thus far. You can skip this bullet list. People here understandably dont take kindly to those who havent done research, so I'd just like to prove I have put in the time:
  • Xidas - These are supposedly the holy grail, but are very expensive. Most people say they're worth it because they ride well on roads and handle well on the track.
  • FCM - Nearly as good or equal to Xidas, but you have to jump through hoops and pay a fee for the privilege of spending even more money on them (I think?). "Just buy Xidas"
  • Feal 441 - Theres like 3 different versions. Sounds like its a bit below Xida and FCM, but a good value. "Why not save and just buy Xidas?"
  • Rebuilt bilsteins from that 9000 page thread - Best bang for your buck if you actually like the end result. From reading the thread it sounds a bit finnicky to get it right, source the bilsteins, and in most cases they're good on the track but harsh on the road. Doesnt sound like its for me unless I somehow missed something, but I dont think I did.
  • FM V-maxx - These are garbage and I think they're rebranded racelands. Apparently the only reason people ever like these is that they havent had a real setup
  • Meisterr - Basically the same as FM v-maxx, just with annoying forum marketing.
  • Koni Yellows - Were great back in the day when there werent a ton of options, not so good these days even for the price
  • Tokico Illumina - People say they're a good value, but you cant get them anymore so it doesnt matter
  • Tein Flex - Not particularly good, better to save the money and get a better setup, but apparently a good value for what it is.
  • Raceland - Lol

You'd think knowing all that I'd be able to decide for myself, but I dont take my car to circuit tracks. Its a fun weekend canyon car that serves as a daily. I really just want something that is at least as comfortable as stock, maybe slightly less, but a handling improvement over stock with a 1" drop. Doesnt have to be a huge improvement. I really just need to replace the shocks. I actually liked the stock suspension, but I dont want to buy anything used and the aftermarket OEM-like replacements allegedly suck. Xidas of course are the answer, I can even afford them, but the truth is I just dont want to put $2,2000 suspension on a $4000 car. I know I can resell them for most of their value, I know they're the best, but I just dont need the best. I'm not competing like a lot of you guys are, and I'm not doing track days. I'd probably use them to 40% of their potential, I already have a money-pit track car that isnt my miata, and to be honest I think the dollar:fun ratio of $2,200 could be better spent on other things in my specific situation.

I really appreciate any insight you guys have.

matrussell122 04-24-2020 08:30 PM

Penske (the real gold standard)>xida triple>feal 442>xida race (the affordable premium)>feal 441>diy bilstein (the one you want)

MindfulMoose 04-24-2020 08:44 PM


Originally Posted by matrussell122 (Post 1568357)
Penske (the real gold standard)>xida triple>feal 442>xida race (the affordable premium)>feal 441>diy bilstein (the one you want)

I'm actually leaning toward the Feals. I'm just not sure which version of the 441 is the one people like.
Theres all of these:
"Feal Suspension 441+ Road Race Monotube Coilovers" for $1749
"Feal Suspension 441 Monotube Coilovers" for $1285
"Goodwin Racing Spec Feal Suspension 441 Road Race Coilovers" for $1299

I think the $1285 set are the ones I want. Near my budget and claim to be ideal for street use, but googling didnt return anyone on this forum talking about that version specifically.


I read through that Bilstein thread and pretty much everyone who uses them says they're good on the track, but very uncomfortable for daily use, and honestly I dont think I want to scour the internet for used bilsteins, source various parts from a ton of places, and put forth the effort. I'd rather just spend more money. Time is what I'm lacking most these days.




matrussell122 04-24-2020 08:48 PM

It's all in setup. Bilstein can be great on the street. They do 90% of what the xida will do for far less money. If I was you I'd go that path until either xida race or 442s

LeoNA 04-24-2020 10:20 PM

What tires are you using or plan to use? Are sure you want a full 1" drop? That would be 6" pinch weld to 5". What other suspension mods are you planning? What are you comfortable spending?

MindfulMoose 04-24-2020 10:28 PM


Originally Posted by LeoNA (Post 1568374)
What tires are you using or plan to use? Are sure you want a full 1" drop? That would be 6" pinch weld to 5". What other suspension mods are you planning? What are you comfortable spending?

I just fitted the car with 15x8 wheels on 205/50/15 continental extremecontact sport tires. I'm just eyeballing it. Maybe 1" is too much. It just looks like a 4x4 at the moment. Not going for any particular look, I just want it to look like the wheels fit. So maybe half an inch. I really dont know the exact drop I want. Currently no plans to turbo, but I'm trying to set up the car so if that changes in the future I wont have to go sell and re-buy a bunch of crap. Hence the 15x8 wheels.
Here is a photo of the car: https://i.imgur.com/lqqNBFO.jpg

Obviously I'd like to spend the minimum to get what I'm looking for (Improved handling, but as close to stock road comfort as possible), but at the high end I'd like to keep it around $1000. I think $1300 is my hard line. I'm only choosing to go aftermarket because my stock shocks are gone and the aftermarket OEM-like shocks are all crap. My miata isnt my weekend/track/fun-only car. I have a car for that, so I just want to improve it a bit while keeping it as livable as possible. As bad as they apparently are, I almost wonder if Teins would be fine for me since so many people who "dont know any better" like them. I've had high end coilovers on other cars, but never the miata, so maybe I dont know any better either.

vitamin j 04-24-2020 10:48 PM

Don't see Fox on your list. I'm really happy with my Fox.

MindfulMoose 04-24-2020 10:50 PM


Originally Posted by vitamin j (Post 1568377)
Don't see Fox on your list. I'm really happy with my Fox.

The only fox option I know of is the FM Fox setup. I didnt put it on the list because its $2349, and at that price I'd just go with the tried-and-true Xidas. I hear more people using them and praising them than the Fox setup.

andym 04-24-2020 11:02 PM

I don't really see where you said what your budget is. But, assuming the budget is performance per dollar then I would favor the bilstein setup. It would depend on how much performance you want with the tradeoff in comfort. The quick cheap comfy setup for the bilsteins is to run maruha top hats, the b6 or b8 nb shocks, integra 14mm bumpstops cut down to about 40mm, and 350 / 200 inlb springs in 6 inch length and 2.5 inch diameter. If you want more performance and a bit less comfort (but still comfy) 550/350 springs are good to run and about the max those shocks can do when stock.

Should you want to go wild down the road a few years from now you can have Whitener revalve the bilsteins to best suit your needs and make a spring combo recommendation then.

LeoNA 04-24-2020 11:25 PM

Feal street, MeisterR ZetaCRD or MeisterR Sportive. The Feal with a RB (24mm) 15/16 front bar is the best setup in your price range. After that I would go with the Xida Race with 1/4" spacers above the top mount. The ideal ride height would be 5"- 5 3/8".

Goingnowherefast 04-25-2020 01:56 AM

Honestly, I think the Penske's are really going to shake things up. You can buy a set of completely assembled Penske's with eibach springs for ~$1,600 here: https://www.advanced-autosports.com/...31211469242411. It'd be hard to imagine much better value than that.

That being said, I've had the Xidas (800/500 springs), I have FEAL's 441+ (7K/7K) on my current BRZ, and my brother has the DIY Bilsteins (500/350) on his Miata. I have significant seat time on all three setups on track. The 441's are a really good budget minded coilover - make no mistake, these are not in the same league as true motorsport grade coilovers like Xidas, MSC etc. They are nice though in that you can buy custom spring rates directly from FEAL and they have many different valving options that you can request (worth noting they actually use linear valving as opposed to digressive/dual digressive shock valving that you usually see). Also they seem to have a bit better shock travel over some other options like BC, Fortune etc.

In my eyes, this is the Miata coilover tier list:

Xidas/MCS/JRZ/Penske > Penske SM kit > Ohlins > FEAL 442 > FEAL 441+ > DIY Billies > Tein Flex > literal garbage > V-maxx/BC's

matrussell122 04-25-2020 02:07 AM


Originally Posted by Goingnowherefast (Post 1568399)
Honestly, I think the Penske's are really going to shake things up. You can buy a set of completely assembled Penske's with eibach springs for ~$1,600 here: https://www.advanced-autosports.com/...31211469242411. It'd be hard to imagine much better value than that.

That being said, I've had the Xidas (800/500 springs), I have FEAL's 441+ (7K/7K) on my current BRZ, and my brother has the DIY Bilsteins (500/350) on his Miata. I have significant seat time on all three setups on track. The 441's are a really good budget minded coilover - make no mistake, these are not in the same league as true motorsport grade coilovers like Xidas, MSC etc. They are nice though in that you can buy custom spring rates directly from FEAL and they have many different valving options that you can request (worth noting they actually use linear valving as opposed to digressive/dual digressive shock valving that you usually see). Also they seem to have a bit better shock travel over some other options like BC, Fortune etc.

In my eyes, this is the Miata coilover tier list:

Xidas/MCS/JRZ > Penske SM kit > Ohlins > FEAL 442 > FEAL 441+ > DIY Billies > Tein Flex > literal garbage > V-maxx/BC's

Wrong Penske. These are the king penske not what you linked. .

https://performanceshock.com/index.p...oducts_id=1219

Goingnowherefast 04-25-2020 02:10 AM


Originally Posted by matrussell122 (Post 1568401)
Wrong Penske. These are the king penske not what you linked. .

https://performanceshock.com/index.p...oducts_id=1219

No, I'm specifically talking about the new Penske SM kit that I linked. Obviously those Penske's are in the top tier with the other motorsport grade systems like Xidas, MCS, JRZ etc.

andym 04-25-2020 09:24 AM

We all have a point, but our recommendations all come in at different price points. What does OP want to spend? He stated that he didn't want to drop $2,200 on a $4k car. Are we talking about a budget of $600, $1,200, $1,600.....

turbofan 04-25-2020 10:58 AM

Enjoyed reading the summaries of what you've learned :laugh:

For what you're doing, why not Xida GS? Still the awesome ride/handling balance you're looking for, $1879. That'll get you an inch lower than stock without a problem too.

Outside of that, still the billies. I think there was someone around here selling pre-assembled bilstein kits, was it you @Bronson M ?

concealer404 04-25-2020 12:04 PM

Broke bitch Burger King burger flipper happy meal: Budget bilsteins with 550/350 springs or 450/300 springs.
Home Depot assistant paint department manager flexin': Goodwin Feal 441s
I'm a real boy now and i don't need to have unique brain function slapping meat on table: Xidas in a flavor of your choice

Spaceman Spiff 04-25-2020 12:09 PM


Originally Posted by MindfulMoose (Post 1568378)
The only fox option I know of is the FM Fox setup. I didnt put it on the list because its $2349, and at that price I'd just go with the tried-and-true Xidas. I hear more people using them and praising them than the Fox setup.

Just chiming in to say the same thing as VitaminJ about how much I absolutely love my FM Fox setup. Obviously not the MT.net drink-the-kool-aid-jim option, but just because there aren't as many testimonials doesn't mean that they don't have a lot of merits compared to the Xidas. In a flat out, no driver-mod required sense it's my understanding the Xidas will always eek out that extra 0.1s compared to anything but the ~$1xxxx 2x/3x adjustable custom race shocks, but that's not why I purchased my suspension.

I wanted 99% of that performance, but a large majority of my driving is on the street (and honestly some roads around would be suitable test the Mars2020 rover on) AND I couldn't afford to drop $2000 on a suspension only for that street driving to necessitate a $800+ rebuild or re-seal of the shocks in a ~years (or twos) time. I think the jury is really still out on how much those neoprene(?) shock condoms improve MTBF for the Xidas, but if you search around you'll see a lot of people needing them rebuilt with only mixed street driving thrown in -- which is par for the course for a race shock, but too expensive for my usage.

What I do know is that I've never ridden in a Miata more comfortable and composed over some horrendously rough roads than the Fox (and I'm talking if you go above 20 you will literally be bounced out of your seat kinda bumpy), and, more importantly for me, I also have some sense of the sheer amount of R&D time and money Fox invests into their coatings, o-ring, and dust seal technologies, as they certainly aren't putting shock condoms on their off-road products, and yet they still survive. I'm in no way trying to harp on Tractive here, obviously they're excellent suspension designers and make a wicked fast product, but they simply can't compete with the resources of a publicly traded company that's been building shocks since 1978. Also of high importance to me, I've had nothing but exceedingly excellent customer services experiences with FM at every turn, and I certainly can't say the same for a few other companies in this sector.

Anyway, just my 2 cents. DIY Billies are probably your best bet if you don't find them too harsh.

HarryB 04-25-2020 12:47 PM

Well, Tractive is not exactly new as well... If you live in Europe, I would also give Meisterr a chance. Not Xida good by any means (not even remotely) but not bad for a sub-800 euro setup too.

Spaceman Spiff 04-25-2020 12:56 PM


Originally Posted by HarryB (Post 1568440)
Well, Tractive is not exactly new as well... If you live in Europe, I would also give Meisterr a chance. Not Xida good by any means (not even remotely) but not bad for a sub-800 euro setup too.

You're absolutley right I could've been more clear. Like I said Tractive obviously makes great products, and from what I remember reading a bunch of WP suspension engineers left after KTM bought them and founded Tractive. There's a reason all the fast people love the Xidas...

But Fox has a $1.67 Billion market cap and brought in $180M in revenue last quarter. When it comes to reliability testing and R&D, no amount of ingenuity is going to fully compete with resources like that.

concealer404 04-25-2020 01:02 PM

I'm not sure i'd be presenting "doesn't need rebuilds!" as a point for Fox. They're a performance/racing shock. They will need rebuilds more often than the Bilstein-sport stuff otherwise referenced. There's big business around rebuilding Fox/King/Icon/Radflo shocks.

Just because people DON'T rebuild them on Miatas as often as Tractive-based stuff so far with a very limited sample size doesn't mean they SHOULDN'T.

matrussell122 04-25-2020 02:29 PM


Originally Posted by concealer404 (Post 1568442)
I'm not sure i'd be presenting "doesn't need rebuilds!" as a point for Fox. They're a performance/racing shock. They will need rebuilds more often than the Bilstein-sport stuff otherwise referenced. There's big business around rebuilding Fox/King/Icon/Radflo shocks.

Just because people DON'T rebuild them on Miatas as often as Tractive-based stuff so far with a very limited sample size doesn't mean they SHOULDN'T.

Miata people dont rebuild stuff because we are a crowd of cheap sum bitches that sould be rebuilding them but arnt.

Spaceman Spiff 04-25-2020 02:47 PM

Great point, I didn't mean to present it in quite that manner, just that a reasonable rebuild interval appears as if it is going to be notably longer than the ~once a season it seems many beating on Xidas are doing. That said there is obviously a much smaller sample size so I could be eating my words in a year. I personally just had a much easier time pulling the trigger on my (admittedly used) set of coilovers because of the faith I had in Fox's R&D and FM's customer service.


concealer404 04-25-2020 02:58 PM

Those rebuilding their Xidas every season would also be rebuilding Fox every season, is what i'm getting at. Race shocks require periodic servicing. The use and care by the end user has a bigger impact on interval than who made the shock.

Not many pointy-end people using the Fox stuff. That's not a knock against it, i haven't used them. Just an observation.

sixshooter 04-26-2020 10:38 AM

As Andy and another pointed out already, the cheap, plush ride option is buying a brand new set of Bilsteins and just keeping the spring rates modest for comfort. You don't need 550/350 if not running slicks on a track. 400/300 or 400/275 depending upon the sways will be super plush for the street and not hit the bumpstops all the time. Spend ~$120 per shock, $35 per spring, and get some cheap adjusters. Done.

jt@namiata.com 04-26-2020 11:02 AM


Originally Posted by Spaceman Spiff (Post 1568435)
Just chiming in to say the same thing as VitaminJ about how much I absolutely love my FM Fox setup.

I am also very happy with mine. It rides awesome both for DD duty and an handful of autox per year. After years of trying different cheaper things like Bilsteins/Koni w/ softer spring rates and Ground Control perches, I finally have something I really enjoy.

emilio700 04-26-2020 12:03 PM


Originally Posted by MindfulMoose (Post 1568351)
I just dont want to put $2,2000 suspension on a $4000 car.

Please state max budget for:
shocks/springs/mounts
sway bars
bushings if applicable

calteg 04-26-2020 05:48 PM


Originally Posted by concealer404 (Post 1568433)
Broke bitch Burger King burger flipper happy meal: Budget bilsteins with 550/350 springs or 450/300 springs.

I must have royally fucked my budget build up somehow. MSM Billies running 500/350 springs and it rides like a goddamn donkey cart. Any imperfection on the street is "grab your kidney belt" time.
I finally sacked up and bought the Xida race setup, it is 1000% without a doubt worth the money.

andym 04-26-2020 05:51 PM


Originally Posted by calteg (Post 1568610)
I must have royally fucked my budget build up somehow. MSM Billies running 500/350 springs and it rides like a goddamn donkey cart. Any imperfection on the street is "grab your kidney belt" time.
I finally sacked up and bought the Xida race setup, it is 1000% without a doubt worth the money.

Did you have extended front and rear top hats? I found that at reasonable ride heights having extended front and rear hats helped on that setup.

IanIsInTheGarage 04-27-2020 01:31 PM

DO NOT go with Feal. Unless you like getting coilovers showing up with bent rods and zero packaging. Then those butt holes tried to charge me a restocking fee and to fix their shipping mistake they wanted me to wait for them to rebuild their crap. Goodwin saved the day big time for me that day. I ended up with Ohlins $2400 or something. If your just wanting 1in drop and stock feel; i'd say bypass coilover and get a nice shock/spring combo. Use the rest of money for tires.

concealer404 04-28-2020 12:18 PM

That.... doesn't match my FEAL experiences. But that does suck. :(


matrussell122 04-28-2020 01:46 PM

I too feel that my Feal coilovers are sweet. Very happy with them.

Scaxx 04-28-2020 04:28 PM


Originally Posted by matrussell122 (Post 1568875)
I too feel that my Feal coilovers are sweet. Very happy with them.

With all the driving you've been doing on them? :p

matrussell122 04-28-2020 04:30 PM


Originally Posted by Scaxx (Post 1568891)
With all the driving you've been doing on them? :p


Shhhhhh they dont know that.

concealer404 04-28-2020 04:30 PM

I heard those Feals have records under their belt. They speak for themselves.

matrussell122 04-28-2020 05:03 PM


Originally Posted by concealer404 (Post 1568893)
I heard those Feals have records under their belt. They speak for themselves.

My specific coilovers have been raced and set many track racords......

Rallas 04-29-2020 08:11 AM

Spend all the money that you possibly can or wait a while and save more money for the best setup you are willing to pay for. It is not worth spending a few hundred less thinking that you are OK with some reduced level of performance. Especially since you daily the car, you need to spend even more money to have improved performance and relatively comfortable ride quality. Cheaper solutions "feel" like higher performance to the untrained street driver, but ride quality sucks. I went through several cheap shock options during my college and younger years (AGX and Raceland), eventually I spent the money for two revisions of Bilstein revalves (first revalve was way to harsh for 90% street driven car). I could have paid for XIDA's (at that time) compared to the cost of my two revalves. For comfort you need shock travel, so lowering too much without extended travel top hats, especially on NA top hats, will only lead to terrible ride quality and bad performance. DIY bilstein setups require you to figure out a lot of things like spring rates, spring heights, helper springs, ride height, bump stops ect. Lots of crap to screw up and ruin the ride quality or performance, even if it is a good shock. Off the shelf options like XIDA figure all these things out for you and give you something that works out of the box without guessing/tuning, that's why they can charge what they charge and most options are worth the $$$.

My dad has a 99 and we have tried Koni yellows as well as the current FM-Vmaxx adjustables. Either of these options were good compromise options.Good performers with reasonable ride comfort. They will not work as great on track as my Bilstein setup, but work great for the occasional track day use. I would not recommend anything less than a Koni yellow or V-Maxx.

Not shock related, but for a mainly street driven car and occasional mountain spirited driving I really recommend the most comfortable shock, mild springs like FM, but add the stiffest sway bar. I did this on my wife's old 97 and it resulted in a very comfortable ride, but lots of fun when you hit the twisties. Not the best on track, but great for a car that will likely never spend much time on track.

sixshooter 04-29-2020 12:44 PM

Slightly better than stock? Put Bilsteins under your stock hardware and springs.

MindfulMoose 04-29-2020 07:08 PM

Ahhh, crap. My email alerts stopped for this thread. Sorry guys. I thought I put my budget in the OP but I must have edited it out on accident when I updated it. I'd like to keep it around $1000, but I think $1300 is my hard limit for coils. I dont mind spending $1300 on coils and then having to go buy bushings and sway bar(s). I'll spend whatever is necessary on "supporting" mods for the coils.

I read through the thread and when you consider budget, it seems the answer is between Feals and DIY bilsteins. You guys like the Fox but its just way too up there in price.

I've also heard a few problems about fitment on the feals. You can find a couple of threads where they arrived in bad shape or didnt fit properly for some reason, but I'm not too worried about that since it seems pretty uncommon. I'm most likely going to wind up going with the Feals at this point. The DIY Bilsteins may technically be the best value option, but I honestly just dont want the headache of parts hunting. I want to place an order and be done. My garage has too many other headaches and I like the miata being a stress free car for me.

matrussell122 04-29-2020 10:26 PM

If you get deals you want he road race which is out of your budget. That leaves the diy beilstein. So just do that. It's good and you will be happy with both the budget and performance.

borka 04-29-2020 10:51 PM

I personally really like my bc racing br series coilovers.
Had an older setup with 8k/6k spring and it was nice and comfy on the street and decent track performance.

Then got 4 new shocks from bc with 12k/8k springs and now it's great on track, stiffer on street, but still a good ride.

I did pickup a set of xida race 700/400 and will be installing them soon. We will see what difference I might notice.

k24madness 04-30-2020 11:06 AM

While admittedly not up to date on all the options my go to shock for performance daily driver has always been the Bilstein. The big question for the Miata will be how well off the shelf billys perform with your spring rates.

I understand and agree with not going overboard on a cheap daily driver. While difficult to reconcile on paper you'd be hard pressed to find another area of improvement that would have as great of an impact on your enjoyment of the car. Food for thought as you take the plunge.

Schroedinger 04-30-2020 11:26 AM

Buy cheap, buy twice. That said, if you are going to buy cheap- NB Bilsteins (NOT the NA ones, which have completely different valving), Flyin Miata springs, NB top hats, FCM bump stops. This setup was 85% as good as my Xida GS setup for street driving, and not too shabby on the track. That said, the GS setup was definitely worth the money.

z31maniac 04-30-2020 11:56 AM


Originally Posted by concealer404 (Post 1568433)
Broke bitch Burger King burger flipper happy meal: Budget bilsteins with 550/350 springs or 450/300 springs.
Home Depot assistant paint department manager flexin': Goodwin Feal 441s
I'm a real boy now and i don't need to have unique brain function slapping meat on table: Xidas in a flavor of your choice

Let's be fair, XIDAs as great as they are......had 800/500 on my NA. Are still pretty inexpensive.

The new-to-me NC has MCS DA remotes.

concealer404 04-30-2020 12:18 PM


Originally Posted by z31maniac (Post 1569076)
Let's be fair, XIDAs as great as they are......had 800/500 on my NA. Are still pretty inexpensive.

The new-to-me NC has MCS DA remotes.

Agree. I have Singles on my car, with a set of Triples waiting to go on.

Because doin' it for the Gram.

matrussell122 04-30-2020 12:21 PM


Originally Posted by concealer404 (Post 1569081)
Agree. I have Singles on my car, with a set of Triples waiting to go on.

Because doin' it for the Gram.

Youll be able to hard park so hard at cars and coffee

concealer404 04-30-2020 12:23 PM

Yeah i just wish the hoses were longer so i could mount the canisters in the engine bay to floss with my hood up.

Lincoln Logs 04-30-2020 01:48 PM


Originally Posted by Schroedinger (Post 1569071)
Buy cheap, buy twice. That said, if you are going to buy cheap- NB Bilsteins (NOT the NA ones, which have completely different valving), Flyin Miata springs, NB top hats, FCM bump stops. This setup was 85% as good as my Xida GS setup for street driving, and not too shabby on the track. That said, the GS setup was definitely worth the money.

I've had just about every shock except Fox on my car. I vote either cheap Bilsteins, Xida GS or Xida Race. Pick what fits your budget and goals. The other choices are just not as good, and I loath doing things more than once now. On my GT86, I went with MCS...they are good but I wish there were Xidas available when I purchased.

matrussell122 04-30-2020 01:52 PM

It's alright one day you can have engine bay flex to . Just like one day my car will run.


https://cimg4.ibsrv.net/gimg/www.mia...dd851ae850.jpg


z31maniac 04-30-2020 02:37 PM


Originally Posted by Lincoln Logs (Post 1569104)
I've had just about every shock except Fox on my car. I vote either cheap Bilsteins, Xida GS or Xida Race. Pick what fits your budget and goals. The other choices are just not as good, and I loath doing things more than once now. On my GT86, I went with MCS...they are good but I wish there were Xidas available when I purchased.

I'm curious what you think XIDA specific shocks for the Twins would do better than your MCS setup? Price? Is damping at the front or rear not what you expected, is the spring rate where it needs to be, tires performing as they should as far as temperatures and stuff? Honestly asking out of curiosity, not trying to be a jerk or play a gotcha.

I just ask because for the average driver, the few % difference between a XIDA or a triple-adjustable Penske.........most aren't going to be able to discern the difference.

Lincoln Logs 04-30-2020 03:21 PM


Originally Posted by z31maniac (Post 1569115)
I'm curious what you think XIDA specific shocks for the Twins would do better than your MCS setup? Price? Is damping at the front or rear not what you expected, is the spring rate where it needs to be, tires performing as they should as far as temperatures and stuff? Honestly asking out of curiosity, not trying to be a jerk or play a gotcha.

I just ask because for the average driver, the few % difference between a XIDA or a triple-adjustable Penske.........most aren't going to be able to discern the difference.

The biggest things are more stroke, ride height and being able to get reasonable camber (-3ish) without camber plates. The valving of the MCS shocks is linear, so that has it's own flavor in how the car drives but the shocks themselves are quality. They make the AST5100 I had on the car feel like a dumpster fire and they handle very well on a bumpy autocross lot with 450lb springs F/R. Comfort on the street is acceptable although my Miata with Xida Race (800/500) and a big tubular front bar still rides better on the street in some ways. Particularly over quick sharp hits which the digressive valving just handles better. Over big bumps I'd say it is a draw. Another thing I've noticed with the MCS is the adjustment is a lot more subtle than the Xida. I know that it is common for race shocks to have a more narrow adjustment range and that the Xida intentionally have a wider range/sweep, this is not a knock on the MCS as they work fine for my application. I also opted for the 1 way adjustable non-remote MCS because these are capable of being upgraded to two-way remotes in the future if I want.

The 86 platform is a lot like the Miata and the rear shocks are really short even from the factory. The MCS application for the GT86 was developed in large part by Vorshlag. They opted to split the shocks into two versions, a shorter model for the low boi autocross crowd and another that was stock class compatible. I went with the shorter shock and it is hard to get a reasonable ride height out of them. I am running it a little more than 1" lower than stock (13.5" from the hub to fender) and the car struggles getting in and out of driveways everywhere. It's bad enough I do not take the car places if I know the driveways are troublesome.

This is a photo of the car as it sits today. Raise the car too much and it is going to be outside the sweet spot of bump/droop with the shock length. 949 are the only people I know of that fret over every little detail when it comes to suspension and want to make their product as good as possible, I can't say the same for everyone else out there. From what I've seen them share on the forums about the GT86 Xida, they will have more bump travel front and rear which is a good thing and you can run the car at a reasonable ride height. Additionally, the geometry in the front of this car goes really wonky if you go too low. So it makes the ride height you run that much more important.

https://live.staticflickr.com/65535/...6562ed25_k.jpg

Here are a few notes comparing the stock shocks to the MCS. I didn't take measurements of my AST5100s before I sold them but I do have a photo comparing the rear shocks.

Stock struts/shocks with TRD bump stops (shorter than OEM and intended for TRD lowering springs)

Front Strut
148mm total travel
97mm travel with bump stop
51mm bump stop length

Rear Shock
124mm total travel
90mm travel with bump stop
34mm bump stop length

MCS Struts/Shocks (you do not run bump stops)
Front Travel - 108mm
Rear Travel - 102mm

AST5100 rear shock with stock top hat next to MCS short rear shock with Vorshlag coaxial top hat.

https://live.staticflickr.com/65535/...cf4c7b90_k.jpg

Camber plates are a big expense and add a serious amount of NVH to the platform. NVH wise, it's really noticeable on the freeway with grooved concrete sections. It isn't the end of the world, but the car is otherwise a really nice place to be and if I could get rid of the NVH I would but I need the cambers for autocross. I also spent a lot of money on Vorshlag's camber plates and rear top hats with my shocks and they left a lot to be desired. The press fit radial bearings in the spring perches all had different measurements varying 1-5mm in height. Is that a big deal? Probably not but given how much I spent, I was expecting precision not good enough.

I'm mostly salty about their response on that subject and how it was handled. Another issue is camber plates on this platform are all over the place. Every company has a different stack height and most eat into your precious bump travel in the front. My notes show that Vorshlag is one of the better choices when it comes to stack height. Another great design element, /s, of the rear top hats is the top of the shocks contact the inside of the upper spring perch at max travel. They machined those too thick so I run a really slim packard in there to prevent metal on metal contact.

Another challenge with the GT86 suspension design is swaybar endlink interference at race negative camber. Both the AST and MCS have endlink contact at the bottom of the strut if you want more than -3* of camber. The MCS can't even utilize the slotted upper strut bolt without everything contacting. With my Vorshlag camber plates I have a max of ~ -3.3 camber and it still isn't enough even with a less sticky tire like the NT-01. On a RE-71r or A052 at autocross I'm guessing it wants north of -4*. In short, there are a lot of little details that add up to something that I would like a solution for. I see that in the Xida for the GT86 and appreciate the time spent on development to get them right. I would rather throw money at a product than spending my own time doing that.

To answer your last question, I think the average driver would notice a difference between those shocks and they would have a worse time on the 3-way Penskes compared to the Xida. The more adjustments you can make, the more rope you have to hang yourself. Most folks can't even describe handling problems accurately let alone understand what changes need to be made to compensate. Hell, adjusting a 1-way coilover is more adjustment than most want to make. Less is more until you can drive the wheels off what you have but having a good shock under you sure as heck makes it easier to learn what to do.

doward 04-30-2020 04:38 PM

The easy button none of us want to admit to is the ~400/260lb FM Vmaxx Xtreme. You get an application specific fixed length shock, properly configured spring stroke with helpers and even adjustable damping. You can get them with the higher rate ~500/340 Track Pack springs if desired.

I've built myself two sets of diy billies and my new daily came with a set already installed. They need quite a bit more secret saucing than the MT hivemind will admit, hence the 900 page thread. Extended hats, upper spring perches, particular lower perches or custom machined grooves, etc, and then they are only 'happy' up to about 500lb in the front, IMO. The sweet spot is lower than that for street ride quality.
My current set has extended mounts f&r with 'just' 500/350 and my 900/500 Gen2 Xida Race ride significantly better.

borka 04-30-2020 04:47 PM

Vmaxxxx is garbage, I had them. Ride like crap on the street and not much better on the track.

My bc coilovers are not top of the line buy most standards here, but they blow vmaxxx away. Much more composed ride and well valved.

Its impossiimpoto buy suspension by looking at a spec sheet and features. Only way is to try for yourself or rely on other people's experiences.


doward 04-30-2020 05:08 PM


Originally Posted by borka (Post 1569144)
Vmaxxxx is garbage, I had them. Ride like crap on the street and not much better on the track.

The <$500 eBay mass-market Vmaxx crap(I agree with you) shares little with the $939 FM Vmaxx Xtreme. The proprietary FM variant is quite good, and has more rear stroke and a better spring rate stagger than OTS BC/Feal/Fortune/Stance stuff.



Lincoln Logs 04-30-2020 06:00 PM


Originally Posted by doward (Post 1569142)
The easy button none of us want to admit to is the ~400/260lb FM Vmaxx Xtreme. You get an application specific fixed length shock, properly configured spring stroke with helpers and even adjustable damping. You can get them with the higher rate ~500/340 Track Pack springs if desired.

This right here. I'd also like to point out even my "baller" MCS did not come with springs that had the correct length or spring stroke, helpers, bump stops, Torrington bearings, thrust sheets or anything else fancy. That is all on the end user who has already spent nearly $4000 for single adjustable coilovers, let that sink in. The more I think about it the more I wish I could have just bought Xidas for substantially less and gotten a complete package. All of the details add up and they do matter.

emilio700 04-30-2020 06:31 PM

Vmaxx xxtreme NA/NB

https://www.topmiata.com/product/v-m...rs-kit-for-na/
$569 shipped from China

Or direct from Netherlands https://www.v-maxx.com/en/products/c...r-kits/2306906
similar shock as FM xxtreme but different spring rates, valving and a few other details. 2.5" so you could always scrounge ebay for alternates.
Also the FM end link it appears https://www.v-maxx.com/en/accessorie...r-1-kit-1-axle

Front
4" x 112# (2kg)
5.5" x 392# (7kg)
Rear
4" x 112# (2kg)
6.7" x 336# (6kg)
https://cimg5.ibsrv.net/gimg/www.mia...f6e2fd812d.jpg

msmola2002 04-30-2020 06:57 PM

Vmaxx aren't bad, I guess, they hit a price point of assembled gear between total crap and Race spec stuff, in line with DIY billies, but turn key for someone who doesn't want to have to do the hard work.

They aren't tecnas or anything, but they are ok.

concealer404 04-30-2020 07:00 PM


Originally Posted by emilio700 (Post 1569154)
Vmaxx xxtreme NA/NB

https://www.topmiata.com/product/v-m...rs-kit-for-na/
$569 shipped from China

Or direct from Netherlands https://www.v-maxx.com/en/products/c...r-kits/2306906
similar shock as FM xxtreme but different spring rates, valving and a few other details. 2.5" so you could always scrounge ebay for alternates.
Also the FM end link it appears https://www.v-maxx.com/en/accessorie...r-1-kit-1-axle

Front
4" x 112# (2kg)
5.5" x 392# (7kg)
Rear
4" x 112# (2kg)
6.7" x 336# (6kg)
https://cimg5.ibsrv.net/gimg/www.mia...f6e2fd812d.jpg


Looks a lot like Tecnas with red springs.

Chilicharger665 04-30-2020 07:20 PM

I had the FM Vmaxx XXtremo's or whatever they are called on my old 01. It was super bouncy on the track. I didn't like them on the street or the track.

shuiend 04-30-2020 08:04 PM


Originally Posted by concealer404 (Post 1569157)
Looks a lot like Tecnas with red springs.

I don't believe Tecnas had the little knob at the top with 9-76 different adjustments.

matrussell122 04-30-2020 08:55 PM

Do we know when supermiata is releasing their techna's?

https://cimg6.ibsrv.net/gimg/www.mia...9868b8dba2.jpg


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