Description
BMW 3 SERIES SEDAN E30 (51MM STRUT) (WELD IN) (82-91) BC Racing DS Series Coilovers | 5.5/8KG.MM
The BC Racing DS Series Coilovers for BMW 3 SERIES SEDAN E30 (51MM STRUT) (WELD IN) (82-91) deliver precision suspension tuning with a 5.5/8KG.MM spring rate, engineered to enhance handling and ride quality on classic E30 platforms. These coilovers feature a weld-in design compatible with 51mm struts, providing adjustable damping and ride height for enthusiasts seeking improved performance and control. Built to exacting standards by BC Racing, this suspension system combines reliability with the responsiveness demanded by serious E30 drivers.
BC Racing DS Series Coilovers
The BC Racing DS Coilover system is built with digressive valving, offering the same great benefits of the BR Series and is considered a perfect choice for those looking for track-biased coilovers. The digressive piston design produces a non-linear damping curve — allowing higher low-speed damping to control body roll through cornering, acceleration and braking, while providing reduced high-speed damping to allow the wheel to travel when running kerbs, preventing the impact from transmitting fully into the shell and retaining car balance.
Key Features
- Digressive piston and damping curve
- Satin chrome finished shock body
- 30 clicks of simultaneous rebound and compression adjustment
- Ride height adjustment separate to spring preload
- Monotube damper design
- Pillowball top mounts (depending on model)
- Bearing mounted upper spring platform
- Camber adjustable top mounts (depending on model)
- Tapered bottom mount locking collar to prevent collar working loose
- Custom spring rates available
- All spare parts available with low lead times
- Dust boot to protect damper seals
- 1 year manufacturer warranty
Digressive Piston Valving
Unlike a conventional linear piston, the DS digressive design increases damping force at low piston velocities — the range associated with body roll, pitch and dive during driven inputs — while reducing damping force at high piston velocities, such as when a wheel travels over a kerb. This keeps the car stable during cornering loads while allowing impacts to be absorbed without upsetting the chassis balance.
Kit Specifications
- Fitment: BMW 3 SERIES SEDAN E30 (51MM STRUT) (WELD IN) (82-91)
- Spring Rate: 5.5/8KG.MM
- 30-Way Combined Damping Adjustment
- Monotube Damper Design
- Full Ride Height Adjustment (via Bottom Mount)
- Adjustable Spring Platforms for Corner Weighting
- Tapered Bottom Mount Locking Collar
- Custom Spring Rates Available
- All Spare Parts Available
- 1 Year Manufacturer Warranty
Fitment Data
| Make | Bmw |
| Model | 3 Series |
| Chassis | SEDAN E30 (51MM STRUT) (WELD IN) (82-91) |
| Series | DS |
| Spring Rate | 5.5/8KG.MM |
| Part Number | I-07-DS-DA |