Description
Mazda SE3P RX-8 (03-12) BC Racing ZX coilover kit 8/6 kg/mm
The BC Racing ZX coilover kit RX-8 (part number N-05-ZX) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Mazda RX-8 SE3P, model years 2003 to 2012. The spring rate is 8 kg/mm front and 6 kg/mm rear.
The ZX series brings BC Racing’s DS and ER together in a 3-way adjustable kit with an external reservoir. For the RX-8 it is intended for competitive track use, long sessions and demanding drift work.
You adjust low-speed compression in 20 clicks, high-speed compression in 12 clicks and rebound in 30 clicks, each separately. The upright monotube dampers have a dual piston and racing oil with an ultra-high viscosity index, and the damping is digressive. At 8/6 kg/mm the springs are softer than those of the ER kits for the RX-8.
Key benefits
- 3-way adjustable: low-speed and high-speed compression and rebound, each separately.
- External reservoir: for long sessions on track.
- Dual piston, digressive: firm control during slow movements.
- Racing oil: with an ultra-high viscosity index.
- Combination of DS and ER: the technology of two series in one kit.
- Replaceable upper mount: with camber plates; rubber top mounts optional.
- Spring rate 8/6 kg/mm: for the RX-8 SE3P.
- Rebuildable: the dampers can be rebuilt.
Suitable for
Mazda RX-8 SE3P, model years 2003 to 2012. BC Racing lists no exclusions within this generation.
- Competitive track use and long sessions
- Demanding drift work
- Drivers who want to set low-speed and high-speed compression separately
Technical specifications
- Manufacturer: BC Racing
- Part number: N-05-ZX
- Series: ZX, 3-way with external reservoir
- Spring rate front/rear: 8/6 kg/mm
- Damper design: upright monotube with dual piston and external reservoir, digressive
- Damping: 3-way, 20 clicks low-speed compression, 12 clicks high-speed compression and 30 clicks rebound
- Ride height: steplessly adjustable via the damper body
- Top mounts: replaceable upper mount, camber plates on suitable kits, rubber top mounts optional
- Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
- Warranty: 1 year on manufacturing defects; noise from this track-focused series is not covered by the warranty
Fitting and delivery
The kit is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic and making sure the reservoirs sit clear. After setting the ride height, have the wheel alignment adjusted again. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is out of stock, you can still order and we will keep you informed about the delivery date.
The ZX series combines BC Racing’s DS and ER technology in a 3-way adjustable kit with an external reservoir.
Why choose this ZX coilover kit RX-8?
Because for competitive track use and drifting you want to be able to adjust more than just compression and rebound together. With 3-way adjustment you tune how the RX-8 responds to slow and fast wheel movements separately, and the external reservoir is made for long sessions.
BC Racing coilover kits for the Mazda RX-8 SE3P
Overview of the BC Racing series for the Mazda RX-8 SE3P supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.
| Series | Part number | Springs f/r | Damping | Intended for |
|---|---|---|---|---|
| BR | N-05-BR-RS | 8/6 | 30 clicks, linear, rubber top mounts front | Road with the occasional track day |
| DS | N-05-DS-DA | 8/6 | 30 clicks, digressive, pillowball top mounts front | Track-focused, sporty road use |
| DS | N-05-DS-DS | 8/6 | 30 clicks, digressive, rubber top mounts front | Track-focused, sporty road use |
| ER | N-05-ER | 10/7 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ER | N-05-ER | 10/8 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ZX (this kit) | N-05-ZX | 8/6 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drifting |
Frequently asked questions
What is the difference between the BC Racing ZX and ER for the Mazda RX-8?
The ZX is 3-way adjustable, the ER 2-way. The ZX splits compression into 20 clicks low speed and 12 clicks high speed, plus 30 clicks rebound. For the RX-8 the ZX has 8/6 kg/mm springs, the ER 10/7 or 10/8 kg/mm.
Does the BC Racing ZX coilover kit fit every Mazda RX-8 SE3P?
Yes, the kit is made for the RX-8 SE3P, and BC Racing UK lists model years 2003 to 2012 for the ZX series on the RX-8. If you have an RX-8 from 2008 or later, please contact us to be sure and we will check the fitment.
What spring rate does the BC Racing ZX coilover kit RX-8 have?
The ZX coilover kit RX-8 has 8 kg/mm front and 6 kg/mm rear. If you want a different spring rate, contact us; we will look into the options and the delivery time for you.
What is the delivery time of the BC Racing ZX coilover kit for the Mazda RX-8?
The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily sold out, you can still order it and we will let you know when it arrives.
Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.
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