Xray NT1 Set-Up Book

20
TWEAK
COMBATING TWEAK
If your car is tweaked, there are several things you can check or adjust.
Check these areas in the following order:
• Chassis fl atness
• Downstop settings
• Shock length and damping
• Binding parts
• Shock spring preload
• Anti-roll bars
CHASSIS FLATNESS
A twisted chassis will certainly cause a car to become tweaked. Since the chassis is the central attachment point for all suspension components,
a twisted chassis will render all other suspension settings as unbalanced.
To check for a twisted chassis, remove the wheels and disconnect the springs. Place the chassis on a perfectly fl at surface (such as
the HUDY Set-Up Board) and see if the chassis rocks from side to side. Even a small amount of twisting will result in a tweaked car.
DOWNSTOP SETTINGS
Check downstop settings to make sure they are equal on the left and right sides of the car. For more information on downstops, see “Downstops.”
SHOCK LENGTH AND DAMPING
Check shock lengths and damping to make sure they are equal on the left and right sides of the car. You typically adjust shock length by tightening
or loosening the lower pivot on the shock rod. Damping adjustment varies depending on the type of shock absorber.
BINDING PARTS
Make sure that all suspension components move freely without binding; this includes suspension arms and pins, pivotballs, ball cups, etc.
#333420
2.0 mm
#333422
2.2 mm
#333424
2.4 mm
#333426
2.6 mm
SOFT STIFF
ANTI-ROLL BARS
ADJUSTING THE REAR ANTI-ROLL BAR
Adjust the rear anti-roll bar by moving the linkage upper pivotball on the bar:
• SOFTER rear anti-roll bar: Move the linkage upper pivotball
outward towards the end of the bar.
• STIFFER rear anti-roll bar: Move the linkage upper pivotball
inward away from the end of the bar.
You may also adjust the rear anti-roll bar stiffness by using rear anti-roll bar wires of
different thickness:
• SOFTER rear anti-roll bar: Thinner wire
• STIFFER rear anti-roll bar: Thicker wire
A “tweaked” car is an unbalanced car, and has a tendency to pull to one side under
acceleration or braking. Tweak is caused by an uneven wheel-load on one particular axle.
You should check for suspension tweak after you have set up the suspension settings.
The method of tweak correction described here requires the use of a perfectly fl at reference
surface (such as the HUDY Set-up Board). However, for advanced tweak measurement and
correct we recommend using the professional HUDY Tweak Station, which includes detailed
explanations about tweak correction.

Xray NT1 Specifications

General

Brand	Xray
Model	NT1
Category	Motorized Toy Car
Language	English