The BC Racing HM series of coilover suspension kits combine inverted Mono-tube dampers with independent bump and rebound damping adjustment and external oil reservoirs making them perfect for track use as they allow for more precise damping adjustment with more consistent damping even in race conditions. They also provide height adjustment which is obtained via the bottom mount rather than the spring platform, this allows for full damper travel at any ride height.
- 30 click independent bump and rebound damper adjustment via two separate knob adjusters to optimise handling characteristics
- Inverted Monotube damper design improves rigidity, reduces un-sprung weight and reduces heat transfer to the oil which all improve damper performance
- Height adjustment via bottom mount to retain full damper travel
- Fully rebuildable damper units
- Adjustable spring platforms for corner weight adjustments
- External oil reservoir allows for increased oil capacity, reducing the temperatures and keeping the damping rate more consistent even in race conditions.
- Pillowball aluminium top mounts with spherical bearings are supplied with some applications. These eliminate flex in the top mount and provide a more positive steering feel. Camber adjustment is included on some vehicles.
- Dampers are finished in black chromed steel for superior corrosion resistance and long lasting great looks
BC Racing HM series coilovers are designed for optimum damper control for precise vehicle handling. They are ideal for competition or the most demanding track day use and will improve the handling of any vehicle. The dampers offer independent bump and rebound adjustment which allows you to dial in the handling characteristics far more than can be achieved with combined bump/rebound adjustment. It allows you to maximise grip and traction by tailoring how the car rolls onto the front tyres during braking and also how it responds as you come off the brakes and start to accelerate. The HM series dampers also use an external oil reservoir which allows for an increased oil capacity which helps keep the oil temperature cooler and provides more consistent damping performance throughout the duration of a race. The dampers are an inverted monotube design which have the benefit of reducing un-sprung weight which further improves handling and they also reduce flex for better steering response. Please note that it is not possible to fit inverted dampers to the rear of some vehicles, these applications will be supplied with a traditional style damper. The coil springs are manufactured from the highest quality cold wound steel to retain the original rate and length so you can be sure of 'as new' performance every time.
The amazing features don't stop there, to prevent any possibility of the ride height altering due to vibrations BC Racing have produced a patented concave lower locking collar which seats into a corresponding bevel on the bottom mount. This vastly increases the locking surface area keeping the height just where you set it. Another innovative addition is a bearing mounted upper spring platform. This minimises the friction between the spring and the platform eliminating spring binding which can effect handling but also improves steering feel.
HM series coilover kits are supplied with aluminium 'Pillowball' top mounts which greatly improve handling and response by eliminating the play associated with OEM rubber top mounts. Some versions of the Pillowball mounts also allow for camber adjustment which is ideal for optimising suspension geometry to obtain the best handling for road or track. Please see the vehicle check box once you have entered your vehicle details for information as to what type of top mounts are supplied for your application.
Sold as a complete vehicle set of springs and dampers. Please note: Some kits may only include front coilovers (e.g cars with torsion bar rear suspension). Also on some vehicles it is not possible to fit coilovers on the rear so in these cases a separate damper and spring are supplied with an adjustable height platform for the spring.
Image is for illustration purpose only, actual product may differ.