SHOCK PRELOAD/RIDE HEIGHT ADJUSTMENT
The Warhead EVO shocks have threaded preload adjusters
on them. This means by threading the collars down, you will
change the ride height. By threading the collars up, you
decrease the ride height. Make sure the preload is the same
from one side to the other.
SHOCK POSITION (UP AND DOWN)
Position the shocks up or down to set the general ride
height. For racing, it’s best to have a low ride height. Use the
upper holes holes in the tower and lower holes in the arms
to lower the ride height for racing.
FRONT SHOCK ADJUSTMENT (IN AND OUT)
Moving the tops of the shocks out will increase steering
resulting in quicker reaction. Moving the tops of the shocks
in will result in slower steering reaction, but will be smoother
over bumps. Mounting the bottoms of the shocks in the
inside holes will give more slow speed steering but will take
away some high speed steering.
REAR SHOCK ADJUSTMENT (IN AND OUT)
Moving the tops of the shocks in will result in more traction
in the corners and will be smoother over the bumps. Moving
the tops of the shocks out will give the truck more steering
and handle large jumps better.
SHOCK OILS AND SHOCK SPRINGS
Many different combinations can be used between the shock
oils and shock springs. Some basic guidelines when setting up
the Warhead EVO are that if the rear end is stiff it will give the
truck more steering and have less rear traction. Stiffening the
front will result in less steering and more rear traction.
Changing the position of the threaded shock pre-load
adjusters results in ride-height change only. It does not
change the spring tension. Optional springs are available to
tune your Warhead EVO. See our website (www.duratrax.com)
for a complete listing of optional parts.
Thinner shock oil makes the shocks react faster which works
well on rough tracks, but makes the truck less stable and
may cause the truck to bottom out over large jumps. Thicker
shock oil makes the truck smoother over large jumps and in
straights, but less reactive over rough sections. The Warhead
EVO comes with 30 wt. oil in the shocks.
DIFFERENTIAL OIL/GREASE
The Warhead EVO comes with sealed differentials filled with
medium grease. You can tune the truck by changing the
oil/grease either heavier or lighter.
• For loose track conditions, use a lighter oil/grease. For
high traction conditions, use a thicker oil/grease.
• For more pull in the corners, use a thicker oil in the front
than in the rear.
• To reduce steering and increase overall forward traction,
use a thicker oil in the rear than in the front.
ACKERMAN
There are two ways to adjust ackerman on the Warhead EVO.
One way is by moving the steering tie rod on the knuckle. If
you use the front hole, you will have more ackerman
resulting in more initial turn in. By positioning the steering tie
rod in the rear hole, you will have less ackerman and a more
consistent feel.
The other way of adjusting ackerman is on the steering drag
link. By positioning the steering tie rod forward on the drag link,
you get less ackerman resulting in a smooth, consistent feel in
the corners. By positioning the tie rod back, you get more
ackerman resulting in more initial steering in the corners.
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