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Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing.


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Old 06-27-2022, 08:00 PM   #1
949 Racing
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Xida Coilovers - 949 Racing



GT86 / GR86
Now shipping!

https://949racing.com/xida-coilover-86.aspx
Features
Inverted monotube front
Monotube rear
Double digressive pistons
Super wide damping range
Built in camber adjustment on strut flange, -5° with our camber plates
Single adjuster for compression and rebound
Increased bump travel over OEM
Adjustable strut flange height to fine tune bump travel tire clearance
Fixed length damper bodies for maximum oil, nitrogen volume and shock travel
Dampers made by Tractive Suspension, Netherlands. Pro motorsport supplier for IMSA & FIA teams, BMW, Pagani, KTM, Dallara and others.
3 year warranty

Kits ship complete
Swift main springs
Swift helper springs
Billet coaxial rear mounts
Billet Coaxial Camber plates
Dust boots
Torrington thrust bearings
Proprietary Delrin spring couplers

Our alignment and setup FAQ

Recommended spring rates
Street, 225-245 tires. 280 or higher TW
GT86 250/200
GR86 250/250

Track/auto-x 255/40/17 200TW, small to medium wing
500/500

Track 265/35/18 40-200TW on 10" wheels, big wing
600/600

Click the link, call or email for more info

Long development thread if you want to nerd out on that sort of thing https://www.ft86club.com/forums/showthread.php?t=136911

Build thread and in car videos from our project car https://www.ft86club.com/forums/showthread.php?t=131052
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Old 06-29-2022, 06:43 PM   #2
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GR with Xida on Touring Springs (250/250). This is about 140mm ride height. Most cars will be able to get down to about 130mm on Touring and 120-125 on 500/500 or 600/600 Race.

Wheels are 17x9 +48 Gen 4 6UL. We stopped making these wheels in 2017 and they are sold out. Working on Gen 5 wheels for early next year.
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Old 06-30-2022, 01:36 PM   #3
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Originally Posted by 949 Racing View Post
GR with Xida on Touring Springs (250/250). This is about 140mm ride height. Most cars will be able to get down to about 130mm on Touring and 120-125 on 500/500 or 600/600 Race.

Wheels are 17x9 +48 Gen 4 6UL. We stopped making these wheels in 2017 and they are sold out. Working on Gen 5 wheels for early next year.
949: That looks great. A couple of questions. What is your measurement of the OEM ride height? How does the ride quality compare to OEM and B6 (OEM springs)?

Thanks.
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Old 06-30-2022, 02:28 PM   #4
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Originally Posted by Capt Spaulding View Post
949: That looks great. A couple of questions. What is your measurement of the OEM ride height? How does the ride quality compare to OEM and B6 (OEM springs)?

Thanks.
Pinch weld height, OEM jacking points with 25" tall tire. I'd also point out that how low you run the car is not limited by Xidas. They are designed specifically for the car, fronts have adjustable strut flanges. You 'll be able to use every last mm of space before the tire starting hitting the tub. The lighter the car and stiffer the spring, the lower you can run. We often get questions about that from folks coming from China/Taiwan made 2 piece coilovers with limited travel. That's simply not an issue with 1 piece shocks that are the correct length.

Touring springs (250/250) absorb everything far better than OEM. All harshness gone. The overall ride is a tad firmer due to the slightly higher spring rates. Big difference between Xidas and Bilsteins is the response to small pavement imperfections. The Bilsteins don't move much until a bigger bump is hit. So the car often quivers and jiggles over most pavement. That's gone with Xidas. The B6 work well on bumps that aren't sharp edged but will still run out of damping when the car is pushed hard. So they have a relatively narrow window where they work well.

Even with 500/500 Race rates, the ride is never harsh. That ride quality and versatility is really what Xidas are all about and why they are the gold standard in the Miata world.
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Old 06-30-2022, 03:03 PM   #5
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Why different spring rates (touring pack) between GT and GR86?
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Old 06-30-2022, 04:16 PM   #6
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Why different spring rates (touring pack) between GT and GR86?
Total weight, weight distribution and motion ratio differences. They're different cars.
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Old 06-30-2022, 04:32 PM   #7
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Total weight, weight distribution and motion ratio differences. They're different cars.
I thought older ones got lower rear MR, that’s why I expected higher rear or even rates.

How much total travel front and rear?
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Old 06-30-2022, 04:39 PM   #8
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Originally Posted by marco_mc22 View Post
I thought older ones got lower rear MR, that’s why I expected higher rear or even rates.

How much total travel front and rear?
Have you visited the website link we posted yet?
More specs there, including stroke 145/115 and everything else
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Old 06-30-2022, 04:57 PM   #9
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Have you visited the website link we posted yet?
More specs there, including stroke 145/115 and everything else
Damn I’ve missed the FAQ

“Be open minded, be willing to experiment, look at your data, test”

Great words
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Old 07-01-2022, 10:24 PM   #10
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GT86 250/200
GR86 250/250
Is this F/R or R/F?
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Old 07-01-2022, 10:34 PM   #11
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Originally Posted by timurrrr View Post
Is this F/R or R/F?
Sorry

GT86
250 front/200 rear
500/500

GR86
250/250
500/500

Those are our recommended spring packs. As with any of the Xidas we offer for other platforms, you can opt for other rates. Call or email us and we'll go into more detail for any given project to customize if needed.
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Old 07-06-2022, 10:02 AM   #12
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Thanks for your continued support with this platform.

I will be installing a set of your camber plates on my Feal 441+'s this weekend.
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Old 07-06-2022, 10:53 AM   #13
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I'm eyeing a set of these for when I go to Street Touring Whatever as soon as the new car is competitive in a class.

Those that I've talked to in STR, have been much happier with a stiffer rear spring (50 - 100 lbs more) at autox.
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Old 07-08-2022, 08:41 PM   #14
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Shop video with some extra info about Xidas. Let us know if you have any questions!

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