Xray T1R Raycer, Set-Up Book

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R Re ea arr A An nttii--R Ro ollll B Ba arr
If you are driving on a high traction
surface and the car is understeering,
use the optional rear anti-roll bar
(#30 3400). This decreases rear
chassis roll and rear traction, giving
more steering.
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FFuunnccttiioonniinngg
1. First, be sure you have adjusted
the downstops equally on both
sides.
2. Place the car on the flat board
and disconnect the shocks.
3. Lift up the rear right wheel very
slowly. When the rear left wheel
starts to lift off the surface, note how
far the rear right wheel has been
lifted.
4. Do the same thing on the other
side. Lift up the rear left wheel very
slowly. When the rear right wheel
starts to lift off the surface, note how
far the rear left wheel has been
lifted.
5. When properly adjusted, both
wheels should start to move up at
the same lifted position of the other
wheel. If this is not the case, then
the anti-roll bar needs to be
adjusted.
6. Make sure the wire is not
tweaked. If it is, correct it by
carefully bending it straight.
7. If the wire is straight, try to
decrease or increase the height of
the pivot link on one of sides by
adjusting the distance of the pivot
balls. Adjust it little by little until
both wheels move up at the same
lifted distance.
CHECKING FOR TWEAK
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. Now that the suspension geometry set-up has
been completed, you must check for suspension tweak before you
reconnect the anti-roll bars (optional).
Perform these initial steps:
1. Place the car on a flat reference surface.
2. Make sure that both front and rear anti-roll bars are disconnected.
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Lift and drop the front end of the car a few centimeters to let the
suspension settle. Place a sharp tool underneath the chassis at its middle
point, and lift the front end.
If one front wheel lifts before the other, the rear of the car is tweaked. Adjust
the preload on the REAR springs until
both front wheels lift at the same
time.
If, for example, the front right wheel
lifts earlier, you must increase the
preload on the rear left spring, and
decrease the preload on the rear
right spring.
You must adjust both rear springs,
otherwise you will change the
camber settings.
Reconnect the rear anti-roll bar, and
check for tweak again by lifting the
front end of the car. If again one
front wheel lifts before the other, the
rear anti-roll bar may be tweaked.
Check the rear anti-roll bar with
both shocks disconnected from the
arms and with the chassis
suspended on blocks. Make sure
that the downstop adjustments are
set equally. Then adjust the length
of one or both rear anti-roll bar
push rods until both front wheels lift
Chassis Setup Chassis Setup
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