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Author Topic: Another coilover thread  (Read 9584 times)
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Fourth Gear
Posts: 308

« on: October 02, 2015, 09:51:10 PM »

I am finally going get coilovers for the Mazdaspeed Miata.  Was in a car wreck 4 years ago, which failed to kill me or the car, going to mediation next week and will probably have a check before the end of the year.  If my impression of insurance companies is accurate, I will get a check on New Year's Eve, and I want to put a chunk of that dough toward suspension.

This is my daily driver, currently with stock suspension, right down to the boat anchor wheels.  It will continue to be driven in a spirited fashion on the street, autocrossed on street tires, worn on said boat anchors, probably 10 times a year.  Will not do any track time except for the odd parade lap, not putting a roll bar in it.  My buddy has an EG Civic that will be a B18 swapped track whore we can share for that sort of thing, down the road a bit.

I have been sort of agonizing over what to buy, Fat Cat, Xida or the Fox setup from FM that is coming soon.   These are all within about $500 or so of each other, so I consider them to be the same ball park.  In the past, I was thinking V Maxx or Tein, but what the heck, I am worth stepping up to the top shelf stuff.  With the extra weight from the turbo and associated gear, the car is a little heavier than the average NB, so will probably go with higher than average rate front springs, like 700/350 to 400-front/rear.  Bump stops will of course be replaced.  Will probably keep the stock sway bars for now, though I suspect I will change out the end links.  The balance should be pretty good with the stock bars and higher front spring rates, and this will be easy enough to change if it turns out I don't like it.

I am sort of leaning toward Fox, but of course am still on the fence.  How far out in left field am I on my thought process?

“If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower.”

Mark Donahue
Fifth Gear
Posts: 1653

« Reply #1 on: October 02, 2015, 10:58:57 PM »

I got the Teins and I personally love them and adjust them all the time just to try different things out.
But I don't AutoX. So if you really do AutoX then I would opt for the FatCats.
Fox looks interesting but I don't know anyone who uses them so its a crapshoot.
For the price of Xida/Ohlins: I would have to do a lot of AutoX to justify the price.

Previous MSM: 2004 TI; FM LE; Falken FK452s

Current MSM: GT Mica;
SUSPENSION/TRANSMISSION: 215/45/17 Pilot Super Sports; Tein Street Advance Coilovers; FM Happy Meal Level 1 System; GarageStar door bushings; MR short shifter
ENGINE: FM Wiseco Pistons; Carrillo A rods; ARP studs; ATI Super Damper; Mazdaspeed competition motor mounts; oversized intake valves, oversized Inconel exhaust valves, ACL Race bearings , FM valve springs; 700CC Deatschwerks injectors:  NGK plugs; Magnecor 8.5s .
PERFORMANCE UPGRADES: Upgraded Blouche turbo, FM Intake, FM full Exhaust, FM Intercooler
ECU: Hydra 2.7
MISCELLANEOUS:  Autometer Boost Gauge; Audiovox CCS-100 cruise control, Motorcraft transmission fluid, Mobil 1 differential fluid, Castrol Platinum Synthetic Motor oil.

WHP: 256 @ 6141 rpm
TORQUE (lb/ft): 267.0 @ 4105 rpm
BOOST (PSI): 15.46 @ 4120 rpm
                     14.00 @ 3750 rpm

My MSM: Street...with attitude. Smiley
Forceful Driver
Fifth Gear
Posts: 2933

Soviet Stig

« Reply #2 on: October 02, 2015, 11:03:17 PM »

BC/Megan/Tein/D2/Insert generic coilover name here IMO are all kind of the same league of decent coilovers that are not optimized for the chassis.

VMAXX is an example of a cheap coilover that has been re-worked to be more fitting for the Miata with valving and spring rates.

FCM/XIDA/AFCO (when they were made) are specially made for Miatas, sometimes even for a specific single Miata, and will give you generally better performance than the above mentioned units.

I'm kind of in the same boat with my suspension which is OK but definitely has room to grow.

I am interested in seeing what the FOX setup does but until it's out and thoroughly tested I'm not spending my money to be a tester. FOX makes great off-road shocks and bike forks I know that. As much as I love FM, I won't buy into everything they have by default.

XIDA seems to be the ultimate in Miata handling. You can get the FOX with custom springs and valving but cost wise, might be up to XIDA territory.

« Last Edit: October 02, 2015, 11:13:54 PM by 04TitaniumGrayPhilly » Logged

2004 Mazdaspeed Miata #2373 - 328whp and 308wtq/ 2500lbs
ARTech, EFR6258, XIDA, Maxxis RC-1, 3.63 R&P
Fifth Gear
Posts: 560

« Reply #3 on: October 03, 2015, 12:09:34 AM »

Motion Control Systems has an excellent system for miatas as well.

Not sure if you have seen this head to head comparison with Gen2 Xidas:

2004 TI Gray MSM:  Production number: 2209 Production date: 2004-03-30

ECU: MSPNP-Pro, Tuned by KO Racing and Adrenaline Racing
Current output: 205 whp, 214 1b/ft torque @ 11 psi.

Roll Bar: Boss Frog Clearview with harness bar

Fuel: DW300 fuel pump, Fuel injector clinic 775cc injectors

Gauges: Autometer Ultra Lite II: boost/vac, full sweep water temp , full sweep oil temp

Engine: Flyin Miata CAI, FMII elbow with GM IAT,  Flyin Miata downpipe and exhaust, Skunk2 throttle body, FMII cold side piping.  FM oil return check valve, AWR/Mazdacomp hybrid motor mount system, Stock MSM Coils, MagnaCore plug wires

Drivetrain: MiataRoadster Short Shifter, ACT HD Clutch, ACT StreetLite Flywheel,  Energy Suspension Poly Differential mounts,

Suspension: Xida CS coilovers 550F/350R, Racing Beat Endlinks, Racing Beat 1.125 tubular front sway, factory rear sway, Bauer extended lower ball joints, R-package tie rod ends

Wheels/Tires/Brakes : Gen 4 6ULs 15x8, Yokohama AD08 205 50 15, Street Pad: Carbotech 1521, Track: Cobalt Friction XR2/XR4, Powerstop slotted rotors

Cooling: AC delete, Flyin Miata Intecooler, Flyin Miata Crossflow radiator, Spal stage II fans, 90:10 water: coolant+ water wetter, Flyin Miata Oil Cooler

Seats/harness/safety: Marrad LX1,  Schroth Profi II 6pt harness, Hans

Alpine CDE-SXM145BT CD Receiver Single DIN,  Alpine door speakers and tweeters.   Sirius/XM enabled with rear deck antenna.  

Fluids: Differential: Amsoil SVG, Transmission: Amsoil MTG, Motor: Amsoil Dominator 10W30 track,  Mobil1 0W40 Street.  WIX or Mobil 1 extended performance oil filter
Second Gear
Posts: 50

« Reply #4 on: October 27, 2015, 11:06:20 PM »

I'm in the same boat.  My car is near 100k miles and the Bilsteins feel a bit tired.  The bushings are definitely getting noisy and loose.  I'm thinking of getting Xidas, but this may be overkill for an occasional autocross and primary daily driver.  Any opinions on the softer 550/350 spring rates versus the standard 700/400?  I rode in a friends NA converted to NB suspension with 700/400 Xidas set firm, and it felt slightly firm but livable for street driving.
Fourth Gear
Posts: 254

« Reply #5 on: October 28, 2015, 01:55:31 AM »

I'm one of the ones that pre-ordered the Fox setup from FM. Being that Fox actually sent their people to FM's location to help develop a suspension specifically for the Miata, I don't think it will disappoint! The problem is, FM had to push back the ship date until the end of this month (last I checked), and they're only getting like 20 sets for this first shipment. So depending on how many people are already on the waiting list, it may be a while before you get a set. According to FM, I'm number 5 on the list! But being this late in the year, and the weather is starting to turn, I'm not sure how long it's going to be before I get it all installed, let alone on the road for an actual testing.

2004 TI #3021. Purchased Oct. 2014 with 56k miles.

Engine: FM 2 kit with Hydra 2.7, 700cc injectors, and full 3" exhaust.
FM Crossflow radiator w/stage 2 airflow kit.
Suspension: Fox Racing with FM sway bars.
Wheels: 15x8 Enkei PF01s running 215/50 BFG G-force Sports.
Misc: Custom Speedhut boost gauge in place of stock oil pressure gauge. Temp gauge mod. ScanGaugeII. Blue instrument panel lights. Eclipse dash vents.

Definitely a work in progress!
First Gear
Posts: 46

« Reply #6 on: November 05, 2015, 01:37:54 AM »

I just got a call from Flying Miata - my Fox coil overs are ready to ship!!
And I'm just a bit excited.... I see dollars flying away this month - but I'm worth it.
Mabe I should have bought 25 pairs of shoes... Nah

Fourth Gear
Posts: 308

« Reply #7 on: November 26, 2015, 04:33:19 PM »

I ended up with Canyonfive's used FCM setup.  Just what I wanted to buy, saved a ton of dough and did not have to wait for it.  Putting it on tomorrow

“If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower.”

Mark Donahue
Fourth Gear
Posts: 308

« Reply #8 on: February 07, 2016, 04:01:24 AM »

tomorrow turned into a few months later, it is a long story you don't want to hear

I am a bit shocked that 600 lb/in front and 375 lb/in rear springs and an inch and a half lower actually rides better than the stock setup.  I guess it should not surprise me a custom suspension setup for a car just like mine would be better, but I did not realize the stock setup was so bad.

“If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower.”

Mark Donahue
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