What to expect from your JounceShock-

The JounceShock is the core of a secondary suspension system
that dramatically increases the capacity of your vehicle's suspension.
Most systems are designed such that the JounceShocks do not engage the suspension
of your vehicle at ride height. Therefore the system does not usually alter
the ride height or on-road ride quality of your vehicle. When you have a heavy
payload or take your vehicle off-road, your suspension will compress more and
engage the JounceShocks. When the suspension engages the JounceShocks, you may
hear the initial contact. This is normal and is an indication that the JounceShocks
are being applied. As the vehicle is driven off-road you will notice a couple
of performance gains. First, as you drive the vehicle over rough terrain you
will notice that it never feels as though the vehicle is bottoming. Also, you
will realize that the vehicle moves up and down less, Gross Vehicle Motion Control,
as it is called. These are changes caused by the characteristic exponential
air spring curve and the critical damping of the JounceShock units. These changes
significantly enhance the ability of the vehicle, the durability of the vehicle,
and the comfort level of the occupants. This added capacity can be misleading
and care should be taken to learn the new limits of your vehicle without damage
to the vehicle itself.

How a JounceShock works-

When the suspension compresses it drives the shaft of the JounceShock into the
JounceShock body. The shaft compresses the nitrogen volume and since the nitrogen
is in a closed cylinder, the nitrogen pressure increases dramatically as it
compresses. This gives a smooth exponential increase in force (like an air spring)
instead of the force spike that occurs when typical suspension systems bottom
out. The valving inside the JounceShock is designed such that after the JounceShock
has compressed the suspension falls away faster than the JounceShock can extend.
Therefore all of the energy that was put into compressing the JounceShock is
dissipated by the valving rather than pushing the suspension back out. This
is a key factor in why the JounceShocks are so effective for high energy absorption
and vehicle control.

Additional Information