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Front toe-in is adjusted with the steering rods that connect the servo saver
to the steering blocks. Making the steering rods longer will create more
toe-in, while making them shorter will create more toe-out. Be sure to
adjust both steering rods in equal amounts to reach the desired toe angle.

Measure front toe-in using the Hudy Set-Up System.

Initial Setting:

Front toe-in: 0° (front wheels are parallel)

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Rear toe-in is adjusted by adding or removing clips between the bulkheads
and the rear lower suspension pin holders (at the BACK of the bulkheads).
This angles the rear lower arms forward or backward. The initial rear toe-
in setting is 3°.

To change rear toe-in, loosen the screws that hold the rear lower suspension
pin holders (at the BACK of the bulkheads) to the bulkheads. Then, slide a
clip onto the screw, between the holder and the bulkhead. The thicker the
clip, the more rear toe-in. Tighten the screw to secure the pin holders.

Make sure you add the same thickness of clip to both left and right sides.

The following table indicates the effect of adding rear toe-in clips.

Chassis Setup 

The C-hub blocks that hold the 
steering blocks have a specific 
amount of caster molded into them. 

Initial Setting:
Front caster: 3

°

, left and right

Note: The anti-dive setting impacts the caster
setting. To get the true caster setting, add the value of caster block to the
front anti-dive value. For example, if you have 3° caster block and set 3°
anti-dive, the overall caster setting is 6° caster.

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To change the caster 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 different C-hub blocks of different caster angles and
different compounds:

TOE-IN & TOE-OUT

Toe-in is the angle of the wheels as looked at from directly above the car.

When the wheels are parallel the toe-in is 0°. When the front of the wheels
are pointing away from each other, that is called toe-out. When the front of
the wheels are pointing in towards each other, that is called toe-in.

Toe-in is used to stabilize the car, but at the cost of traction. If the car is
oversteering (the rear end loses traction before the front end) extra front toe-
in may reduce oversteer, but it also decreases steering. If the car is
understeering (the front end loses traction before the rear end) extra front
toe-our (or extra rear toe-in) may help, but this makes on-power cornering
more difficult.

Front toe-in makes the car easier to drive by improving stability during
acceleration, and gives a slight increase in steering exiting corners. Front toe-
out increases steering when entering corners, but makes the car slightly more
difficult to drive.

Perform these initial steps:

1.  Remove wheels.

2.  Put the car on the Hudy Set-Up System.

3. Turn the radio and receiver on, and turn the wheels left and right to let the

steering set into the neutral position.

4. Press down the suspension of the car a few times to let the suspension settle.

Chassis Setup 

25

26

TOE OUT

TOE IN

TOE OUT

TOE IN

FRONT C-HUB BLOCKS,

COMPOSITE

3° RIGHT 

SOFT

# 302281

3° LEFT

SOFT

# 302283

6° RIGHT 

SOFT

# 302285

6° LEFT

SOFT

# 302287

3° RIGHT

MEDIUM

# 302282

3° LEFT

MEDIUM

# 302284

6° RIGHT 

MEDIUM

# 302286

6° LEFT 

MEDIUM

# 302288

FRONT C-HUB BLOCKS, 

ALU

0° RIGHT+LEFT HARD

# 302275

3° RIGHT

HARD 

# 302276

3° LEFT

HARD

# 302277

6° RIGHT

HARD 

# 302278

6° LEFT

HARD 

# 302279

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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