MCS 3WR
The MCS 3W damper is a triple-adjustable damper with external reservoirs which allow for adjustment of the gas pressure in the damper. High speed compression, low speed compression, and rebound damping forces are independently adjustable with the compression adjusters located on the reservoir head and the rebound adjuster located on the shaft-end.
High Speed Compression damping forces are controlled by a large blow-off valve located directly on the reservoir main piston for the most precise and accurate damping control, and not a needle valve with a smaller effective adjustment range before the needle is too far out of the orifice to influence flow.
Low Speed Compression damping forces are controlled through orifices located at the compression main piston assembly in the reservoir head and allow for precise hydraulic control of damper oil.
Rebound damping forces are controlled through orifices located at the main piston assembly in the damper body and allow for precise hydraulic control of damper oil through the main piston. Utilizing orifices introduces the ability to have a wide operating range, avoiding pesky re-valves, consistency in damping adjustment per click, and virtually eliminates fatigue with usage.
Gas pressure can be adjusted through a schrader valve located at the end of the remote reservoir, allowing you to increase or decrease the overall support to the vehicle. Reservoir pressure can be adjusted between 100 – 275 PSI to help support the platform in fast cornering that generate large loads or allow more weight transfer to generate more traction in low grip scenarios.
These dampers are packed with technical features but with an elegantly clean execution. The monotube design is very stable with more oil capacity and better heat dissipation than twin tube dampers. Large shafts give extremely high, low-friction side-load support unmatched by shocks inverted and converted for strut applications. The large main piston gives quick, accurate damper response and the divider piston separates oil and gas, eliminating cavitation which often causes noise and sloppiness.
Remote reservoirs give superior fluid temperature control and are available (or standard depending on application) with Staubli dry-breaks for easy installation.

Adjustability
The MCS 3W damper is a triple-adjustable damper with an adjustment range of 18 clicks of high speed compression, 10 clicks of low speed compression, and 18 settings of rebound. Application specific valving covers a wide range of spring rates and eliminates the need to constantly revalve every time you want to increase or decrease your spring rate. MCS has engineered its adjustment mechanisms so each click can be felt, but never feels like you’ve gone too far. 3W dampers are built standard with a linear piston and a digressive piston option is available.

18 Clicks of High Speed Compression Adjustment
High Speed Compression damping is easily manipulated on the 3W damper. With 18 clicks of high speed compression control, the user can easily introduce more platform to the vehicle by manipulating damping forces in high speed shaft movements (4 inches per second of velocity and beyond) to make better use of their mechanical contact patch, resulting in faster lap times.

10 Clicks of Low Speed Compression Adjustment
Low Speed Compression damping is easily manipulated on the 3W damper. With 10 clicks of low speed compression control, the user can easily manipulate the pitch and roll of the vehicle in low speed shaft movements (0-4 inches per second in velocity).

18 Clicks of Rebound Adjustment
With 18 clicks of rebound adjustment, the user can easily introduce more spring control or change the balance of the car.

Gas Pressure Adjustment
Schrader valves are fitted on the ends of the reservoirs. This introduces a valuable tuning tool – the ability to increase or decrease the nitrogen pressure in your damper, allowing you to increase or decrease the overall support to the vehicle. Reservoir pressure can be adjusted between 100 – 275 PSI to help support the platform in fast cornering that generates large loads or to allow more weight transfer to generate more traction in low grip scenarios.
MCS 3 Way
Low Speed Compression Adjuster Knob
Connected to the internal compression adjustment mechanism. Allows user to change low speed compression damping forces easily.

Low Speed Compression Adjuster Knob
Connected to the internal compression adjustment mechanism. Allows user to change low speed compression damping forces easily.
High Speed Compression Adjuster Knob
Connected to the internal compression adjustment mechanism. Allows user to change high speed compression damping forces easily.
Low Speed Compression Orifice
Contains proprietary internal adjustment mechanism for low speed compression damping forces.
Main Piston Assembly
Contains proprietary internal adjustment mechanism for high speed compression damping forces.
Dividing Piston
Separates the gas cavity from the oil cavity.
Schrader Valve
Make gas pressure changes easily with a shock tool.
Rebound Adjustment Mechanism
Proprietary adjustment mechanism to manipulate rebound damping forces.
Main Piston Assembly
Generates overall valving range. Valving can be manipulated by changing the non-preloaded shim stack configuration on the compression and rebound sides of the piston.
Shaft Guide
Creates additional lateral support on shaft-end side of shaft assembly.
Shaft
Also known as piston rod. Responsible for displacing fluid in the damper body to be controlled by piston assembly and adjustment mechanism. We utilize 22mm diameter shafts for strut and shock applications for remote reservoir systems.
Rebound Adjuster Knob
Connected to the internal rebound adjustment mechanism and allows user to change rebound damping forces easily.
Why Raceshocks?
Applications custom-built to your specific needs.
Car setups and driving styles aren’t the same, so why would the same shocks work for everyone?
They don’t!
Buy your Motion Control Suspension from Raceshocks and we’ll take into consideration driving style, spring rate, vehicle weight, and type of tracks when setting up your car. This ensures you’re getting a custom shock that fits the way you drive.
We can supply any of the MCS products available. Take a look at the full list below. At this time we have only added individual product listings for those cars most popular.
Remember to contact us for Motion Control Suspension (MCS) in the UK.