Porsche Club of America, Club Racing – Rule Change Relating to Spec Boxster Shocks

Due to product supply issues beyond PCA Club Racing’s control, we are forced to find an alternative to the current Spec Boxster damper / shock system. The Club Racing rules committee, SPB class advocate, and National Chair reviewed systems from several vendors for compatibility, performance characteristics, financial impact and serviceability in order to determine a system that will be generally available going forward. The current spec damper system, in its existing specification, will continue to be allowed for competition.

PCA’s goal was to find one that would not provide an immediate competitive advantage to racers who bought the new system, would have excellent customer support, quick serviceability and benefit the class in the long term. After reviewing all aspects and doing some on-track testing, we have decided to go with the system from Motion Control Suspension (MCS).

MCS has been a supporter of Club Racing, they have a proven record of customer support on and off the track and excellent product quality. Their components are made in the USA, are individually serviceable, are available for purchase as individual units, and the performance envelope is very close to what competitors are accustomed to with the existing system.

Current SPB racers can use their existing springs with the new MCS system, those building new cars will have to buy a spring kit designed for the MCS system. 

MCS is also offering a contingency program for the SPB class for racers competing with their system. The MCS Contingency Program information is available at: https://pcaclubracing.org/contingency/mcs-sbp-program/.

More program details are available at: http://motioncontrolsuspension.com/specboxster/.

Here is more info on the MCS shock approved for use in the Spec Boxster Class:

Motion Control Systems MCS 1WNR
The MCS 1WNR damper is a single-adjustable damper with an adjustment range of 18 settings. Built as an “entry-level” (yet still race-capable and winning) damper, MCS 1WNR dampers are upgradable to our other damper systems. The modular design of MCS damper systems use interchangeable parts for an easy upgrades, without the need to invest in a new package. All MCS dampers are fully rebuildable, serviceable and can be custom-valved and upgraded any time.
These dampers are packed with technical features with 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.

The MCS 1WNR damper system rings tremendous value and capability in a clean, easy to install and use package; and for these very reasons, was chosen to be used for NASA Spec E46 and NASA Spec Iron racing series.

The MCS 1WNR damper is a single-adjustable damper with an adjustment range of 18 settings.
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.

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.
1WNR dampers are built standard with a linear piston and a digressive piston option is available.

If you have any questions about this announcement, or are interested in getting a set of MCS dampers for your car (BRracing has installed MCS dampers / shocks on a large variety of track cars, and has found them to be very reliable, easy to service, and predictable.)….give us a call.