Description
Nissan S14 Silvia 200SX inverted (95-99) BC Racing RM coilover kit 10/8 kg/mm
The BC Racing RM coilover kit S14 (part number D-14-RM-MA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Nissan Silvia, 200SX and 240SX on the S14 platform, model years 1995 to 1999. The spring rate is 10 kg/mm front and 8 kg/mm rear.
It is BC Racing’s inverted kit. BC Racing lists this part number for the S14. If you have an S15, please contact us before ordering and we will check whether the kit fits.
The RM series is made for track days, hill climbs and tarmac rally. On the MacPherson front axle there is an inverted monotube damper, which is stiffer against bending forces under high cornering loads. On the multi-link rear axle, BC Racing uses an upright monotube with a linear piston.
The spring rate is 10/8 kg/mm. You adjust the damping in 30 clicks, with compression and rebound adjusted together.
Key benefits
- Inverted dampers at the front: a stiffer strut on the MacPherson front axle.
- Digressive piston: firm control of body roll, supple over fast bumps.
- 30-click adjustment: compression and rebound together, quick to adjust for each event.
- Fully synthetic oil: with an ultra-high viscosity index, stable when hot.
- Camber plate at the front: standard on the RM; rubber or original top mounts remain at the rear.
- Spring rate 10/8 kg/mm: firm and balanced for track use.
- Keen price for an inverted kit: step into the world of inverted dampers without reservoirs.
- Rebuildable: the kit can be rebuilt.
Suitable for
Nissan Silvia, 200SX and 240SX on the S14 platform, model years 1995 to 1999
BC Racing lists this kit for the S14. If you drive an S15, please contact us before ordering.
- Track days and track use
- Hill climbs and tarmac rally
- Drivers looking for stiffer struts without an external reservoir
Technical specifications
- Manufacturer: BC Racing
- Part number: D-14-RM-MA
- Series: RM, inverted
- Spring rate front/rear: 10/8 kg/mm
- Damper design: inverted monotube on MacPherson, upright monotube with linear piston on non-MacPherson, digressive
- Damping: 30 clicks, compression and rebound simultaneously
- Ride height: infinitely adjustable via the damper body
- Top mounts: camber plate or pillowball top mount at the front, rubber or original top mount at the rear (code MA)
- 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 track-focused series is not covered by the warranty
Fitting and delivery
The kit is vehicle-specific and replaces the original struts. After fitting, set the ride height, check that the wheels do not touch anywhere at full steering lock and then have the car aligned. BC Racing advises periodic greasing of the RM series and recommends it less for road use than the BR, DS, ER or ZX. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is not in stock, you can still order and we will keep you informed.
The RM brings the stiffness of an inverted damper to the S14, without the weight and hoses of an external reservoir.
Why choose this RM coilover kit S14?
Because it closes the gap between the BR and DS kits and the expensive reservoir kits. You get the advantages of an inverted front strut and digressive damping, with the simplicity of one adjustment knob per damper. A logical choice for an S14 that is regularly on track.
BC Racing coilover kits for the Nissan S14
Overview of the BC Racing series for the Nissan S14 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 | D-14-BR-RA | 6/4 | 30 clicks, linear | Road with the occasional track day |
| DS | D-14-DS-DA | 6/4 | 30 clicks, digressive | Track-focused, sporty road use |
| RM (this kit) | D-14-RM-MA, inverted | 10/8 | 30 clicks, digressive, synthetic oil | Track days, hill climbs, tarmac rally |
| ER | D-14-ER, camber/caster top mounts | 10/8 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ER | D-14-ER | 9/5 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| HM | D-14-HM | 12/6 | 2-way, 30 clicks per direction, external reservoir | Serious track use |
| ZX | D-14-ZX | 6/4 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drift |
| ZR | D-14-ZR | 10/8 | 3-way (20/12/30 clicks), external reservoir | Competitive motorsport |
Frequently asked questions
What is the difference between the BC Racing RM and DS for the Nissan S14?
The RM coilover kit S14 uses an inverted damper at the front, which makes the strut stiffer under high cornering loads, and comes with camber plates as standard on suitable kits. Both have a digressive piston and 30 clicks.
Why is the BC Racing RM coilover kit S14 called an inverted kit?
Because the damper is mounted upside down: with an inverted damper, the wide damper body is at the top and the piston rod at the bottom. That makes the strut stiffer against lateral forces.
Does the BC Racing RM coilover kit D-14-RM-MA also fit the Nissan S15?
That has not been confirmed: BC Racing lists this kit for the S14. If you have an S15, please contact us before ordering and we will find out whether the kit fits.
What is the delivery time of this BC Racing RM coilover kit for the Nissan S14?
The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If it is out of stock, you can still order 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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