XFCK030 X-6 Cubed Conversion Kit Manual V1.0

K 030 X – 6 Cubed
Instruction Manual v1.0
Tuning Section Page 51
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Increase pack with #3’s and 25 wt
Decrease pack with #1’s and 35 wt
and all three shocks would feel very similar on the bench (static damping). Increased
pack is good over smooth tracks and very good for big jumps with flat landings; it also
carries more corner speed. If your car is bottoming out hard landing jumps, try
increasing pack in the rear. Less pack is good for bumpy sections, as the suspension
can soak up high speed movement better.
Suspension travel is controlled by adding limiters inside and outside of the shock.
Limiting inside the shock (where the oil goes) reduces the amount of downtravel in the
suspension: how far down the arms can go. More downtravel (fewer limiters inside) is
better for rough tracks, as it goes over bumps and lands jumps better. Less downtravel
(more limiters) makes the car corner flatter, change directions quicker, and prevents
traction rolls, all at the expense of rough-track handling. In the rear, make sure you limit
downtravel enough that the CVAs cannot pop out of the outdrives; especially when
using the inside shock hole on the rear arm the X – 6 Cubed has quite a bit of travel.
Limiting uptravel (adding spacers outside the shock body) is rarely used, usually only in
the rear to prevent the CVA bone from hitting the outdrive.
Finally, we discuss shock mounting. Changing the bottom shock mounts affects quite a
lot: the further inside the shock is mounted on the arm the softer the suspension feels
(because the wheel has longer lever arm on the shock) and the more travel you have.
To keep downtravel the same, it’s generally recommended to add .060” (1.5mm) of
spacers inside the shock for every hole you move in on the arm (and take out spacers
when you move out, obviously). Running the front shock on the inside hole will add low
speed steering at the expense of stability. The more in the rear shock is mounted, the
“safer” the car will feel around the track: it’s softer and soaks up bumps better. Moving
the rear shocks out on the arm will add steering and is generally recommended for high
traction, smoother tracks.
The upper shock mounts are much easier: the shocktowers holes are designed in an
arc so that the suspension travel doesn’t change as much. Inclined shocks (mounted in
on the tower) have a progressive feel to them. They’re smoother around the track and
provide more side bite. Vertical shocks have more forward bite and are better over
jumps.