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at the same time. There might happen that the wire is tweaked and
therefore the suspension with connected anti-roll bars is tweaked as well.
Carefully straighten the wire, and then check for tweak again. Both wheels
must start lifting up at the same time.

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Lift and drop the rear 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 rear end. If one rear wheel lifts before the other, the front of the car is
tweaked.

Adjust the preload on the FRONT springs until both rear wheels lift at the

same time. 

If, for example, the rear right wheel lifts earlier, you must increase the
preload on the front left spring, and decrease the preload on the front right
spring.

You must adjust both front springs, otherwise you will change the camber
settings.

Reconnect the front anti-roll bar, and
check for tweak again by lifting the
rear end of the car. If again one
front wheel lifts before the other, the
front anti-roll bar may be tweaked.
Check the front 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 front anti-roll bar push
rods until both rear wheels lift at the
same time. There might happen that
the wire is tweaked and therefore
the suspension with connected anti-
roll bars is tweaked as well.
Carefully straighten the wire, and
then check for tweak again. Both
wheels must start lifting up at the
same time.

34

33

Chassis Setup 

For advanced balancing, you can
use Hudy’s Chassis Balancing Tool 
(Hudy #10 7880), a simple, easy to
use balancing tool. The chassis has
two small holes on the underside
front and rear, along the centerline.
To check the chassis left/right
balance, place the two balance tools on a flat stable surface, and then
place the chassis on the tips of the tools; the points fit into the chassis’s
centerline balancing holes. Steady the chassis with your hand, and tilt it so
it is level. When you let go of the chassis, the chassis may fall to one side
or the other side. If it does this, it is not balanced. If the chassis stays level
without falling to one side, it is balanced.

CHASSIS WEIGHTS

Hudy offers the following additional balancing weights: 
#30 9820 Additional Weights for Chassis Balancing (front - 2 pcs)  
#30 9830 Additional Weights for Chassis Balancing (rear - 6 pcs)  
These round weights can be used almost anywhere on the chassis.

If you need to load the front suspension, or simply add central mass to the
car, you can use the following:
#30 9850 Additional Flat Weights for Chassis Balancing (center - 3 pcs)  

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Chassis weight adjustment depends on the type of the track. If the track
has more left corners, put more load on the left side. If the track has more
right corners, put more weight on the right side.

The chassis has several locations at which you can secure balancing
weights.

Front of Chassis

The front of the chassis does not have holes to which weights can be
attached with screws. If you want to add weights to the front of the chassis,
you can attach them with double-sided servo tape. You can also drill small
holes in the chassis so you can attach the weights with screws.

Center of Chassis

The chassis has a central channel
into which you can attach the flat
center weights from the bottom with
screws. When possible, we strongly
recommend mounting the flat center
weights using this method, as it
keeps the weight central and at the
lowest possible CG.

Attach the flat center weight with the tapered end towards the rear of the
car.

Chassis Balancing

Summary of Contents for T1R Raycer

Page 1: ......

Page 2: ...l it can be difficult to apply this knowledge because of the inherent complexity in the setup process itself Your new T1R touring car with fully independent suspension was designed to have optimum per...

Page 3: ...ection servo reverse on the transmitter and re center the servo horn on the steering servo if necessary Next examine the car s servo saver Use the steering link adjustment between the servo horn and t...

Page 4: ...Rollout is a more precise way to set your car s gearing because it takes into account tire diameter gear ratio and transmission ratio Rollout is defined as the distance a vehicle moves forward per re...

Page 5: ...pulley to slip between the two outdrives C Ch he ec ck kiin ng g t th he e D Diif ff fe er re en nt tiia all A Ac ct tiio on n Remove the wrenches from the diff outdrive slots Hold the pulley stationa...

Page 6: ...PULLEY available option To be able to adjust the over steer under steer balance we suggest using the 305500 Main Layshaft With Adjustable One Way The one way pulley allows the front wheels to spin in...

Page 7: ...2 Final Adjustments S St tiif ff fe er r s sp pr riin ng gs s Makes the car more responsive The car reacts faster to steering inputs Stiff springs are suited for tight high traction tracks that aren t...

Page 8: ...helps control how quickly the shock compresses or rebounds L Le es ss s p piis st to on ns s o op pe en n Harder damping reacts like using thicker shock oil M Mo or re e p piis st to on ns s o op pe...

Page 9: ...bodies with a sloped nose A body with high downforce will provide higher traction through the turns However high downforce usually comes at the expense of drag so the car may not be the fastest on a l...

Page 10: ...k on the body to create more rear downforce Some wings even allow you to change their angle or use different canards side plates Most bodies typically come with a rear wing and some aftermarket wings...

Page 11: ...used to achieve better steering through the corners When setting up your steering it is very important that turning radii are the same when the car is turning either left or right Put the car on a Hud...

Page 12: ...anti dive the overall caster setting is 6 caster Chassis Setup When adjusting the steering servo adjust the steering so the steering blocks do not turn the maximum amount If they do decrease steering...

Page 13: ...s straight line stability but makes the car harder to turn into a corner It also makes the car more stable through bumpy track conditions Chassis Setup CAMBER Camber is the angle of the wheels relativ...

Page 14: ...er angle you must change the front C hub blocks to those with a different caster angle When changing the C hubs you must use left and right C hubs that have the same caster angle XRAY offers several d...

Page 15: ...and 4mm clips You can also use the 1mm clips but keep in mind that the sum of all clips used must always total 9mm L Le es ss s s sp pa ac ce er rs s iin n f fr ro on nt t o of f r re ea ar r a ar rm...

Page 16: ...ase 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 heigh...

Page 17: ...anced 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...

Page 18: ...all holes on the underside front and rear along the centerline To check the chassis left right balance place the two balance tools on a flat stable surface and then place the chassis on the tips of th...

Page 19: ...which should immediately be replaced Excess play indicates that a pivot pin holder is worn Check for the correct orientation of the plastic suspension holders They should be in the same direction SHOC...

Page 20: ...Be especially sure that the bearings in the steering blocks and rear uprights as well as the bearings supporting the ball diffs are perfectly clean and rotate freely Check all the bearings including t...

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