Shock Valving:

We have all the common valving combinations for all types of cars for dirt and pavement racing. We also do custom valvings to suit your needs.

Shock Manual:

With every set of Super Shox we include a manual that has a guide for setting the adjusters and gas pressure based on track conditions and dyno sheets for your shocks. The manual also includes directions on how to set gas pressure and maintaining the shocks.

Tech Support:

While we are working to get more tech info up on this page give us a call and we will gladly help you to get the most out of your Super Shox.

847-548-SHOX (7469) e-mail briang@supershox.com

Gas Pressure:

There are significant advantages to a gas over oil shock as in the case with Super Shox. Super Shox are built to maximize those advantages, to get the most from your Super Shox you need to understand how gas pressure works.

Internally in the shock there is a floating piston that separates the oil from the gas. The gas pressure is used to pressurize the floating piston to prevent cavitation. Gas pressure results in rod pressure, which is the amount of force across the area of the shaft. Rod pressure is what the car has to overcome to make initial movement. Shocks are always in motion and always changing direction so there is continual starting and stopping of the shock.

On a tacky or rough track it is best to have high pressure (70# to 100#) to keep the car stable. When the track gets slick it is best to have low pressure (25# to 40#) in the rear shocks to allow the suspension to make initial movement easier which will give the tires more grip. The low pressures only apply to the double adjustable. In the case of standard or single adjustable contact Super Shox for the minimum pressure you can use.

To get a better understanding of the effects of gas pressure take a shock and set it at 100#, then try to compress the shock by only applying enough force to make the shock move. This can also be done on a scale to see the amount of force it takes to move the shock. Then set the same shock at 25# and do the same test and you will feel a big difference between the two settings.

Gas pressure does not change the valving it only changes the rod pressure which is similar to changing spring rate.

Common Gas Pressure Adjustments for Sprint Cars:

Gas Charging:

Gas pressure should be checked on a regular basis before each race. In the shock manual there are recommended pressure settings for each corner of the car based on track conditions.

To check the gas pressures attach the filling tool to Schrader valve by hand tightening the hex nut. When tight turn the T-handle clockwise to compress the valve core. The gauge will now show how much pressure is in the shock. The filling tool uses 3 lbs. of pressure to fill up so the actual reading is 3 lbs. less than what was in the shock before attaching the filling tool.

To add pressure remove the purple cap and use the air chuck on the hose add 20 lbs or more pressure than needed. Put the purple cap back on and turn it in until it begins to compress the valve core this will bleed off the excess pressure. When the pressure is set turn the T-handle counter clockwise to close the valve core and then remove the filling tool. As you begin to remove the filling tool you will hear gas pressure release, this is the gas that was in the filling tool not the shock.

Caution: A common mistake is to remove the filling tool before closing the valve core if this happens you will loose all pressure in the shock!

Gas pressure can be set with the shock extended or on the car. The recommendations in the manual are for setting the pressure on the car. If you prefer to set the pressure extended use 15 lbs more than what the manual recommends.

After using the reccomeded settings from the manual you will learn what pressures best suit your car, driver and track conditions.

Filling Tool