Xray NT1 Instruction Manual

Page 1

Page 2

BEFORE YOU START

The NT1 is a high-competition, high-quality, 1/10-scale nitro car intended for persons aged 16 years and older with previous experience building and operating RC model racing cars. This is not a toy; it is a precision racing model. This model racing car is not intended for use by beginners, inexperienced customers, or by children without direct supervision of a responsible, knowledgeable adult. If you do not fulfill these requirements, please return the kit in unused and unassembled form back to the shop where you have purchased it.

Before building and operating your NT1, YOU MUST read through all of the operating instructions and instruction manual and fully understand them to get the maximum enjoyment and prevent unnecessary damage.

Read carefully and fully understand the instructions before beginning assembly. Make sure you review this entire manual, the included set-up book, and examine all details carefully. If for some reason you decide the NT1 is not what you wanted or expected, do not continue any further. Your hobby dealer cannot accept your NT1 kit for return or exchange after it has been partially or fully assembled.

Contents of the box may differ from pictures. In line with our policy of continuous product development, the exact specifications of the kit may vary without prior notice.

SAFETY PRECAUTIONS

WARNING: This product contains a chemical known to the state of California to cause cancer and birth defects or other reproductive harm. CAUTION: CANCER HAZARD Wash thoroughly after using. DO NOT use product while eating, drinking or using tobacco products. May cause chronic effects to gastrointestinal tract, CNS, kidneys, and blood. MAY CAUSE BIRTH DEFECTS.

When building, using and/or operating this model always wear protective glasses and gloves.

Take appropriate safety precautions prior to operating this model. You are responsible for this model‘s assembly and safe operation! Please read the instruction manual before building and operating this model and follow all safety precautions. Always keep the instruction manual at hand for quick reference, even after completing the assembly. Use only genuine and original authentic XRAY parts for maximum performance.

Using any third party parts on this model will void guaranty immediately. Improper operation may cause personal and/or property damage. XRAY and its distributors have no control over damage resulting from shipping, improper construction, or improper usage. XRAY assumes and accepts no responsibility for personal and/or property damages resulting from the use of improper building materials, equipment and operations. By purchasing any item produced by XRAY, the buyer expressly warrants that he/she is in compliance with all applicable federal, state and local laws and regulation regarding the purchase, ownership and use of the item. The buyer expressly agrees to indemnify and hold harmless XRAY for all claims resulting directly or indirectly from the purchase, ownership or use of the product. By the act of assembling or operating this product, the user accepts all resulting liability. If the buyer is not prepared to accept this liability, then he/she should return this kit in new, unassembled, and unused condition to the place of purchase.

• Keep the wheels of the model off the ground when checking the operation of the radio equipment.

• Disconnect the battery pack before storing your model.

• When learning to operate your model, go to an area that has no obstacles that can damage your model if your model suffers a collision.

• Remove any sand, mud, dirt, grass or water before putting your model away.

• If the model behaves strangely, immediately stop the model, check and clear the problem.

• To prevent any serious personal injury and/or damage to property, be responsible when operating all remote controlled models.

• The model car is not intended for use on public places and roads or areas where its operation can conflict with or disrupt pedestrian or vehicular traffic.

• Because the model car is controlled by radio, it is subject to radio interference from many sources that are beyond your control. Since radio interference can cause momentary loss of control, always allow a safety margin in all directions around the model in order to prevent collisions.

• Do not use your model:

- Near real cars, animals, or people that are unaware that an RC car is being driven.

- In places where children and people gather

- In residential districts and parks

- In limited indoor spaces

- In wet conditions

- In the street

- In areas where loud noises can disturb others, such as hospitals and residential areas.

- At night or anytime your line of sight to the model may be obstructed or impaired in any way.

To prevent any serious personal injury and/or damage to property, please be responsible when operating all remote controlled models.

IMPORTANT NOTES – GENERAL

• This product is not suitable for children under 16 years of age without the direct supervision of a responsible and knowledgeable adult.

• Carefully read all manufacturers warnings and cautions for any parts used in the construction and use of your model.

• Assemble this kit only in places away from the reach of very small children.

• First-time builders and users should seek advice from people who have building experience in order to assemble the model correctly and to allow the model to reach its performance potential.

• Exercise care when using tools and sharp instruments.

• Take care when building, as some parts may have sharp edges.

• Keep small parts out of reach of small children. Children must not be allowed to put any parts in their mouth, or pull vinyl bag over their head.

• Read and follow instructions supplied with paints and/or cement, if used (not included in kit).

• Immediately after using your model, do NOT touch equipment on the model such as the motor and speed controller, because they generate high temperatures. You may seriously burn yourself seriously touching them.

• Follow the operating instructions for the radio equipment at all times.

• Do not put fingers or any objects inside rotating and moving parts, as this may cause damage or serious injury as your finger, hair, clothes, etc. may get caught.

• Be sure that your operating frequency is clear before turning on or running your model, and never share the same frequency with somebody else at the same time. Ensure that others are aware of the operating frequency you are using and when you are using it.

• Use a transmitter designed for ground use with RC cars. Make sure that no one else is using the same frequency as yours in your operating area. Using the same frequency at the same time, whether it is driving, flying or sailing, can cause loss of control of the RC model, resulting in a serious accident.

• Always turn on your transmitter before you turn on the receiver in the car. Always turn off the receiver before turning your transmitter off.

FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.

CUSTOMER SUPPORT

XRAY Europe

K Výstavisku 6992 91101 Trenčín Slovakia, EUROPE Phone: +421-32-7401100 Fax: +421-32-7401109 Email: info@teamxray.com

We have made every effort to make these instructions as easy to understand as possible. However, if you have any difficulties, problems, or questions, please do not hesitate to contact the XRAY support team at info@ teamxray.com. Also, please visit our Web site at www.teamxray.com to find the latest updates, set-up information, option parts, and many other goodies. We pride ourselves on taking excellent care of our customers.

You can join thousands of XRAY fans and enthusiasts in our online community at: www.teamxray.com

XRAY USA

RC America, 2030 Century Center Blvd #15 Irving, TX 75062 USA Phone: (800) 519-7221 * (214) 744-2400 Fax: (214) 744-2401 Email: xray@rcamerica.com

IMPORTANT NOTES – NITRO ENGINES

• Always test the brakes and the throttle before starting your engine to avoid losing control of the model.

• Make sure the air filter is clean and oiled.

• Never run your engine without an air filter. Your engine can be seriously damaged if dirt and debris get

inside the engine.

• For proper engine break-in, please refer to the manual that came with the engine.

• Do not run near open flames or smoke while running your model or while handling fuel.

• Some parts will be hot after operation. Do not touch the exhaust or the engine until they have cooled. These parts may reach 275°F during operation!

Page 3

IMPORTANT NOTES – ELECTRICAL

• Insulate any exposed electrical wiring (using heat shrink tubing or electrical tape) to prevent dangerous short circuits. Take maximum care in wiring, connecting and insulating cables. Make sure cables are always connected securely. Check connectors for if they become loose. And if so, reconnect them securely. Never use R/C models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in fire. Please have wires repaired at your local hobby shop.

• Low battery power will result in loss of control. Loss of control can occur due to a weak battery in either the transmitter or the receiver. Weak running battery may also result in an out of control car if your car‘s receiver power is supplied by the running battery. Stop operation immediately if the car starts to slow down.

• When not using RC model, always disconnect and remove battery.

• Do not disassemble battery or cut battery cables. If the running battery short-circuits, approximately 300W of electricity can be discharged, leading to fire or burns. Never disassemble battery or cut battery cables.

• Use a recommended charger for the receiver and transmitter batteries and follow the instructions

correctly. Over-charging, incorrect charging, or using inferior chargers can cause the batteries to become dangerously hot. Recharge battery when necessary. Continual recharging may damage battery and, in the worst case, could build up heat leading to fire. If battery becomes extremely hot during recharging, please ask your local hobby shop for check and/or repair and/or replacement.

• Regularly check the charger for potential hazards such as damage to the cable, plug, casing or other defects. Ensure that any damage is rectified before using the charger again. Modifying the charger may cause short-circuit or overcharging leading to a serious accident. Therefore do not modify the charger.

• Always unplug charger when recharging is finished.

• Do not recharge battery while battery is still warm. After use, battery retains heat. Wait until it cools down before charging.

• Do not allow any metal part to short circuit the receiver batteries or other electrical/electronic device on the model.

• Immediately stop running if your RC model gets wet as may cause short circuit.

• Please dispose of batteries responsibly. Never put batteries into fire.

WARRANTY

XRAY guarantees this model kit to be free from defects in both material and workmanship within 30 days of purchase. The total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does not cover any components damaged by use or modification or as a result of wear. Part or parts missing from this kit must be reported within 30 days of purchase. No part or parts will be sent under warranty without proof of purchase. Should you find a defective or missing part, contact the local distributor. Service and customer support will be provided through local hobby store where you have purchased the kit, therefore make sure to purchase any XRAY products at your local hobby store. This model racing car is considered to be a high-performance racing vehicle. As such this vehicle will be used in an extreme range of conditions and situations, all which may cause premature wear or failure of any component. XRAY has no control over usage of vehicles once they leave the dealer, therefore XRAY can only offer warranty against all manufacturer‘s defects in materials, workmanship, and assembly at point of sale and before use. No warranties are expressed or implied that cover damage caused by what is considered normal use, or cover or imply how long any model cars‘ components or electronic components will last before requiring replacement.

Due to the high performance level of this model car you will need to periodically maintain and replace consumable components. Any and all warranty coverage will not cover replacement of any part or component damaged by neglect, abuse, or improper or unreasonable use. This includes but is not limited to damage from crashing, chemical and/or water damage, excessive moisture, improper or no maintenance, or user

modifications which compromise the integrity of components. Warranty will not cover components that are considered consumable on RC vehicles. XRAY does not pay nor refund shipping on any component sent to XRAY or its distributors for warranty. XRAY reserves the right to make the final determination of the warranty status of any component or part.

Limitations of Liability

XRAY makes no other warranties expressed or implied. XRAY shall not be liable for any loss, injury or damages, whether direct, indirect, special, incidental, or consequential, arising from the use, misuse, or abuse of this product and/or any product or accessory required to operate this product. In no case shall XRAY‘s liability excess the monetary value of this product.

Take adequate safety precautions prior to operating this model. You are responsible for this model’s assembly and safe operation.

Disregard of the any of the above cautions may lead to accidents, personal injury, or property damage. XRAY MODEL RACING CARS assumes no responsibility for any injury, damage, or misuse of this product during assembly or operation, nor any addictions that may arise from the use of this product. All rights reserved.

QUALITY CERTIFICATE

XRAY MODEL RACING CARS uses only the highest quality materials, the best compounds for molded parts and the most sophisticated manufacturing processes of TQM (Total Quality Management). We guarantee that all parts of a newly-purchased kit are manufactured with the highest regard to quality. However, due to the many factors inherent in model racecar competition, we cannot guarantee any parts once you start racing the car. Products which have been worn out, abused, neglected or improperly operated will not be covered under warranty. We wish you enjoyment of this high-quality and high-performance RC car and wish you best success on the track!

Please note that raw materials such as aluminum, steel, brass, fibreglass, or carbon fibre may have small scratches on the surface which is a standard characteristic of any raw material. Scratches on the surface of any materials are NOT considered to be material defects.

Products may potentially have small amounts of corrosion on them. This may be caused by variances in weather during different times of the year, humidity in the shop or during shipping, and other contributing factors. Even though we have taken all precautions and protection methods to prevent corrosion, these small amounts of corrosion (if present) are unavoidable and considered to be acceptable.

In line with our policy of continuous product development, the exact specifications of the kit may vary. In the unlikely event of any problems with your new kit, you should contact the model shop where you purchased it, quoting the part number. We do reserve all rights to change any specification without prior notice. All rights reserved.

R/C & BUILDING TIPS

• Make sure all fasteners are properly tightened. Check them periodically.

• Make sure that chassis screws do not protrude from the chassis.

•

For the best performance, it is very important that great care is taken to ensure the free movement of all parts.

• Clean all ball-bearings so they move very easily and freely.

• Tap or pre-thread the plastic parts when threading screws.

• Self-tapping screws cut threads into the parts when being tightened. Do not use excessive force when tightening the self-tapping screws because you may strip out the thread in the plastic. We recommended

you stop tightening a screw when you feel some resistance.

• Ask your local hobby shop for any advice.

Please support your local hobby shop. We at XRAY Model Racing Cars support all local hobby dealers. Therefore we ask you, if at all possible, to purchase XRAY products at your hobby dealer and give them your support like we do. If you have difficulty finding XRAY products, please check out www.teamxray.com to get advice, or contact us via email at info@teamxray.com, or contact the XRAY distributor in your country.

IMPORTANT NOTES – NITRO FUEL

• Handle fuel only outdoors. Never handle nitro fuel indoors, or mix nitro fuel in a place where ventilation is bad.

• Only use nitro fuel for R/C models. Do not use gasoline or kerosene in R/C models as it may cause a fire or explosion, and ruin your engine.

• Nitro fuel is highly inflammable, explosive, and poisonous. Never use fuel indoors or in places with open fires and sources of heat.

• Always keep the fuel container cap tightly shut.

• Always read the warning label on the fuel container for safety information.

• Nitro-powered model engines emit poisonous vapors and gasses. These vapors irritate eyes and can be highly dangerous to your health. We recommend wearing rubber or vinyl gloves to avoid direct contact with nitro fuel.

• Nitro fuel for RC model cars is made of the combination of the methyl alcohol, castor or synthetic oil,

nitro methane etc. The flammability and volatility of these elements is very high, so be very careful during handling and storage of nitro fuel.

• Keep nitro fuel away from open flame, sources of heat, direct sunlight, high temperatures, or near batteries.

• Store fuel in a cool, dry, dark, well-ventilated place, away from heating devices, open flames, direct sunlight, or batteries. Keep nitro fuel away from children.

• Do not leave the fuel in the carburetor or fuel tank when the model is not in use. There is danger that the fuel may leak out.

• Wipe up any spilled fuel with a cloth

• Be aware of spilled or leaking fuel. Fuel leaks can cause fires or explosions.

• Do not dispose of fuel or empty fuel containers in a fire. There is danger of explosion.

Page 4

EQUIPMENT REQUIRED

TOOLS REQUIRED

INCLUDED NOT INCLUDED

SYMBOLS USED

Silicone Shock Oil

Transmitter Steering & Throttle Servos

Receiver & Personal

Transponder

Battery Charger

Wheels & Tires

Starter Box (HUDY #104400)

& Battery Pack

Manifold & Exhaust

Engine

Air Filter & Oil

Tire Truer

(HUDY #102003)

Model R/C Car Fuel

(nitromethane)

Threadlock & CA Glue

Glowplug Igniter

HUDY TOOLS

Reamer (HUDY #107602) (HUDY #107601)

Wrench Glowplug/Clutchnut

(HUDY #107581)

Phillips 3.5mm

Exhaust Spring / Caster Clip Remover

Allen 1.5 / 2.0 / 2.5 / 3.0mm

Pinion Tool Set

(XRAY #339901)

Flywheel Tool

(HUDY #182010)

Pliers

(HUDY #189020)

Side Cutters

(HUDY #189010)

Hobby Knife

One-Way Lube

(HUDY #106231)

Bearing Oil

(HUDY #106230)

Apply cyanoacrylate (CA) glue

Follow Set-Up Book

Part bags used

Assemble left and right sides the same way

Assemble in the specified order

Pay attention here

Assemble as many times as specified (here twice)

Apply thread lock

Number of teeth

Apply oil (may indicate specific type)

Follow tip here

Cut off remaining material

Scale

Ensure smooth non-binding movement

3.0 mm

Turnbuckle Tool 3.0mm

(HUDY #181030)

To ensure that you always have access to the most up-to-date version of the XRAY Set-up Book, XRAY will now be offering only the digital online version at our Web site at www. teamxray.com. By offering this online version instead of including a hardcopy printed version in kits, you will always be assured of having the most up-to-date version.

WHEELBASE

Apply grease

Use pliers

Graphite Grease

(HUDY #106210)

Fibre Tape (HUDY #107870)

Scissors

(HUDY #188990)

Lexan

Paint

Bodyshell

Receiver Battery Pack

DETAIL

Detail view

Assembly view

Page 5

1. FRONT GEAR DIFFERENTIAL & SOLID AXLE

981210

P 2x10

33 5000 FRONT GEAR DIFFERENTIAL - SET 33 5010 COMPOSITE FRONT DIFF. CASE, COVER & 27T BELT PULLEY 33 5027 COMPOSITE TIMING BELT PULLEY 27T 33 5030 DIFF BEVEL & SATELLITE GEARS (2+4) 33 5040 COMPOSITE SOLID AXLE ADAPTER 33 5073 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - LONG - HUDY SPRING STEEL™ (2) 33 5080 DIFF PIN (2) 33 5081 ALU DIFF PIN - HARD COATED (2) (OPTION)

90 3206 HEX SCREW SFH M2x6 (10) 90 3258 HEX SCREW SFH M2.5x8 (10) 96 2051 WASHER S 5x10x0.2 (10) 96 4031 WASHER S 3.5x10x0.2 (10) 96 4050 WASHER S 5x15x0.3 (10) 97 1240 SILICONE O-RING 24x0.7 (10) 97 2050 SILICONE O-RING 5x2 (10) 98 1210 PIN 2x10 (10)

335030

335073

962051

903206

981210

335010 or 335027

335010

972050

964050

903258

971240

964031

335030

335080

335010

335040

972050

O 5x2

964050

S 5x15x0.3

962051

S 5x10x0.2

981210

P 2x10

972050

O 5x2

964050

S 5x15x0.3

962051

S 5x10x0.2

CUTAWAY VIEW

OPTIONAL:

#335100 XRAY Multi Differential - One-Way - Solid - Set

OPTIONAL:

#335180 XRAY Superlight Solid Axle Set - HUDY Spring Steel™

BAG

➊

➋

➌

➍

➎

➏

DETAIL

➎ ➏

➎

➏

STEP

Use tweezers to insert pin

➊

➋

➌

➍

➎

➏

➎

STEP

DETAIL

Page 6

GEAR DIFF ADJUSTMENT

FRONT GEAR DIFFERENTIAL & SOLID AXLE

14.06g

15.66g

TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:

➋

Slowly pour oil into the diff and watch the weight. Add 1.6g of oil into the diff. The approximate weight of the diff including oil is 15.66g.

Push down

Wait approx. 5min

Rotate

#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g

➊ Put the diff (without oil) on the scale and check the weight (approximately 14.06g)

14.06g + 1.6g = 15.66g

OPTIONAL:

#335081 Alu Differential Pin - Hardcoated (2)

964031

S 3.5x10x0.2

Fill differential up to the top of the diff pins. DO NOT fill the diff to the top of the housing.

Remove the nozzle of the bottle to allow easy filling of the diff.

Silicone oil

100.000 cSt

Silicone oil 100.000 cSt

Page 7

FRONT GEAR DIFFERENTIAL & SOLID AXLE

SOLID AXLE

971240

O 24x0.7

903206

SFH M2x6

The front diff can be easily changed into a solid axle. Remove the internal gears and replace with the solid axle locking body. DO NOT add silicone oil inside the housing when making a solid axle.

903258

SFH M2.5x8

981210

P 2x10

972050

O 5x2

964050

S 5x15x0.3

962051

S 5x10x0.2

903258

SFH M2.5x8

Tighten the screws equally but do NOT tighten them completely

Finish tightening in this order

NOTE ORIENTATION

➊

➋

➌

➍ ➎

➊

➋

➌

➍

➎

➊

➋

➌

➍

After disassembling the differential, the large O-ring may have an increased size and may be more difficult to re-install. We recommend either replacing the O-ring or carefully inserting the O-ring in the diff cover.

➊

➋

➌

➍

Page 8

1. REAR GEAR DIFFERENTIAL

CUTAWAY VIEW

Use tweezers to insert pin

33 5030 DIFF BEVEL & SATELLITE GEARS (2+4) 33 5050 REAR GEAR DIFFERENTIAL - SET 33 5060 COMPOSITE REAR DIFF. CASE & COVER 33 5072 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2) 33 5080 DIFF PIN (2) 33 5081 ALU DIFF PIN - HARD COATED (2) (OPTION)

90 3258 HEX SCREW SFH M2.5x8 (10) 96 2051 WASHER S 5x10x0.2 (10) 96 4031 WASHER S 3.5x10x0.2 (10) 96 4050 WASHER S 5x15x0.3 (10) 97 1240 SILICONE O-RING 24x0.7 (10) 97 2050 SILICONE O-RING 5x2 (10) 98 1210 PIN 2x10 (10)

335072

962051

981210

903258

335060

971240

964050

335030

964031

335030

972050

335060

335080

981210

P 2x10

972050

O 5x2

964050

S 5x15x0.3

962051

S 5x10x0.2

981210

P 2x10

972050

O 5x2

964050

S 5x15x0.3

962051

S 5x10x0.2

BAG

➊

➋

➌

➍

➎

➏

➎

➏

➊

➋

➌

➍

➎

➏

DETAIL

➎ ➏

STEP

➎

DETAIL

Page 9

REAR GEAR DIFFERENTIAL

GEAR DIFF ADJUSTMENT

14.62g

16.22g

TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:

➋

Slowly pour oil into the diff and watch the weight. Add 1.6g of oil into the diff. The approximate weight of the diff including oil is 16.22g.

#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g

➊ Put the diff (without oil) on the scale and check the weight (approximately 14.62g)

14.62g + 1.6g = 16.22g

Wait approx. 5min

Rotate

Push down

Fill differential up to the top of the diff pins. DO NOT fill the diff to the top of the housing.

Remove the nozzle of the bottle to allow easy filling of the diff.

Silicone oil

60.000 cSt

Silicone oil 60.000 cSt

964031

S 3.5x10x0.2

OPTIONAL:

#335081 Alu Differential Pin - Hardcoated (2)

Page 10

REAR GEAR DIFFERENTIAL

DETAIL

971240

O 24x0.7

903258

SFH M2.5x8

Tighten the screws equally but do

NOT tighten them completely

Finish tightening in this order

➊

➋

➌

➍

Page 11

2. REAR SUSPENSION

REAR ANTI-ROLL BARS

333470 2.0 MM WIRE STANDARD 333472 2.2 MM WIRE OPTION 333474 2.4 MM WIRE OPTION 333476 2.6 MM WIRE OPTION

PIVOT BALLS

337250 STEEL STANDARD 337251 ALU OPTION 337255 TITAN OPTION

WHEEL HUBS

335250 STANDARD 335251 OFFSET -0.75MM OPTION 335252 OFFSET +0.75MM OPTION

29 6530-O ALU NUT M3 - ORANGE (10) 30 3122-O ALU SHIM 3x6x1.0MM - ORANGE (10) 30 3123-O ALU SHIM 3x6x2.0MM - ORANGE (10) 30 3141-O ALU SHIM 3x5x1.0MM - ORANGE (10) 30 3241 BALL UNIVERSAL 5.8 MM HEX (4) 33 1107 CHASSIS 3MM - CNC MACHINED - SWISS 7075 T6 33 2070 COMPOSITE ADJUST. BALL-BEARING HUB (4) 33 2316 COMPOSITE SUSP. ECCENTRIC BUSHING (4) 33 2630 ADJ. TURNBUCKLE L/R 25 MM - HUDY SPRING STEEL™ (2) 33 2660 COMPOSITE STEERING & SERVO BALL JOINT 5.8 MM (4+2) 33 3015 ALU LOWER BULKHEAD REAR RIGHT - SWISS 7075 T6 33 3025 ALU LOWER BULKHEAD REAR LEFT - SWISS 7075 T6 33 3035 ALU UPPER CLAMP REAR (L+R) - SWISS 7075 T6 33 3062 GRAPHITE ROLL-CENTER BRIDGE 33 3082 GRAPHITE SHOCK TOWER REAR 3 MM 33 3110 COMPOSITE SUSPENSION ARM REAR LOWER - V2 33 3130 COMPOSITE REAR UPPER CAMBER LINK BALL JOINT 5.8 MM (4) 33 3240 BALL UNIVERSAL 5.8 MM HEX (4) 33 3311 COMPOSITE UPRIGHT REAR FOR AERO DISC 33 3461 COMPOSITE ANTI-ROLL BAR BALL JOINT 4.9 MM - V2 (4) 33 3470 ANTI-ROLL BAR FOR BALL-BEARINGS - REAR 2.0 MM 33 3710 ALU LOWER 2-PIECE REAR SUSPENSION HOLDER (1) 33 3720 ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - REAR - RR 33 4010 ALU BRAKE STAND - SWISS 7075 T6 33 4020 ALU FRONT MIDDLE SHAFT HOLDER - SWISS 7075 T6 33 4041 BRAKE CAM POST - STEEL 33 4052 COMPOSITE BRAKE UPPER PLATE 33 4070 COMPOSITE 6x13x5 BALL-BEARING HUB (2) 33 4110 VENTILATED BRAKE DISK - LASER CUT - PRECISION-GROUND 33 4120 HARDENED STEEL BRAKE PAD - LASER CUT (2) 33 4130 BRAKE PAD FERODO (2)

33 4140-O BRAKE DISK ADAPTER - ALU 7075 T6 - ORANGE 33 5050 REAR GEAR DIFFERENTIAL - SET 33 5210 DRIVE AXLE - HUDY SPRING STEEL™ 33 5250 ALU WHEEL HUB 12MM - BLACK (2) 33 5320 DRIVE SHAFT - 60 MM - HUDY SPRING STEEL™ 33 5450 PUR-REFINFORCED DRIVE BELT REAR 5.5 x 177 MM 33 5510 2-SPEED SHAFT - V2 33 5810 COMPOSITE BELT PULLEY 20T - 2-SPEED-CENTER 33 7250 STEEL PIVOT BALL 8.4 MM (2) 33 7252 ALU ADJUSTING NUT M10x1 (4) (OPTION) 33 7253 COMPOSITE ADJUSTING NUT M10x1 WITH BALL CUP (4) 33 7310 REAR LOWER INNER PIVOT PIN (2) 34 3481-K ALU CUTTED ANTI-ROLL BAR COLLAR - BLACK (2) 36 2650 BALL END 4.9MM WITH THREAD 6MM (2) 90 1303 HEX SCREW SB M3x3 (10) 90 1304 HEX SCREW SB M3x4 (10) 90 1308 HEX SCREW SB M3x8 (10) 90 1316 HEX SCREW SB M3x16 (10) 90 1406 HEX SCREW SB M4x6 (10) 90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 2320 HEX SCREW SH M3x20 (10) 90 3306 HEX SCREW SFH M3x6 (10) 90 3308 HEX SCREW SFH M3x8 (10) 93 0508 BALL-BEARING 5x8x2.5 RUBBER SEALED (2) 94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2) 94 0613 HIGH-SPEED BALL-BEARING 6x13x5 RUBBER SEALED (2) 94 1016 HIGH-SPEED BALL-BEARING 10x16x4 RUBBER SEALED (2) 96 5070 E-CLIP 7 (10) 98 1208 PIN 2x8 (10) 98 1210 PIN 2x10 (10)

BAG

331107

903306

902308

337310

333710

903308

334020

903308

332630

333015

902306

333470

901304

333461

303241

901308

903308

333025

333130

335320

335210

941016

337253

335250

303122-O

941016

335810

334140-O

334110

334120

334010

334052

903308

981208

332070

333240

901308

333130

981210

901316

333311

902308

902306

333082

901303

940508

334041

940508

902308

902320

296530-O

334130

901303

930508

343481-K

362650

902308

332660

902306

333062

333035

941016

337250

901303

303123-O

333240

333110

334070

335050

965070

901406

335510

335450

940613

332316

333720

903308

332316

303141-O

Page 12

REAR SUSPENSION

903308

SFH M3x8

902308

SH M3x8

BEARING OIL

NOTE

ORIENTATION

NOTE ORIENTATION

Both bushings must be in same position

OPTIONAL:

#335451 High-Performance Kevlar® Drive Belt Rear 5.5x177mm - V2

941016

BB 10x16x4

TO LOOSEN REAR BELT: Rotate both rear nylon hubs in arrow direction A

REAR BELT TENSION ADJUSTMENT

L=R

TO TIGHTEN REAR BELT: Rotate both rear nylon hubs in arrow direction B

INITIAL POSITION

902306

SH M3x6

NOTE

ORIENTATION

DETAIL

DETAIL DETAIL

Page 13

ROLL CENTER ADJUSTMENT

REAR DOWNSTOP

ADJUSTMENT

REAR SUSPENSION

902308

SH M3x8

901308

SB M3x8

1.6mm

2.5mm

REAR ARMS

LEFT REAR ARM

RIGHT REAR ARM

LEFT REAR ARM

RIGHT REAR ARM

-0.5mm

1.6mm

2.5mm

Use (-0.5mm) suspension

holders for initial assembly.

REAR ROLL CENTER INSERT POSITIONS

-1.5mm -0.5mm +0.5mm +1.5mm

INITIAL SETTING

NOTE ORIENTATION

OPTIONAL:

#333111 Composite Suspension Arm, Rear Lower - Hard

It is extremely important that the arms move freely on the pivot pins. If they do not, use the #107633 HUDY Arm Reamer to slightly resize the holes in the arms.

902306

SH M3x6

3x6

3x8

903306

SFH M3x6

903308

SFH M3x8

Page 14

REAR SUSPENSION

930508

BB 5x8x2.5

303241

BALL 5.8

BEARING OIL

BEARING WITH STEEL COVERS

902308

SH M3x8

REAR ANTI-ROLL BARS

333470 2.0 MM WIRE STANDARD 333472 2.2 MM WIRE OPTION 333474 2.4 MM WIRE OPTION 333476 2.6 MM WIRE OPTION

6mm THREAD

27mm

2x 2x

2.0mm

DETAIL

Page 15

REAR CAMBER ADJUSTMENT

REAR ANTI-ROLL BAR

ADJUSTMENT

REAR SUSPENSION

Set the bar into the center, remove the play in the

bushings, and tighten the setscrews fully.

VIEW

CENTER

NOTE ORIENTATION

Tighten composite hex nuts using HUDY tool #107581

➊

➋

➌

➍

BEARING OIL

6mm

INITIAL SETTING

901303

SB M3x3

PIVOT BALLS

337250 STEEL STANDARD 337251 ALU OPTION 337255 TITAN OPTION

WHEEL HUBS

335250 STANDARD 335251 OFFSET -0.75MM OPTION 335252 OFFSET +0.75MM OPTION

DETAIL

333240

BALL 5.8

901303

SB M3x3

901304

SB M3x4

CUTAWAY VIEW

During initial assembly, tighten each composite hex nut until the pivot ball starts to bind, then loosen slightly. Verify that the pivot balls move freely.

Pivot balls must move freely.

48.8mm

Follow the TECH TIP on page 43 to install the pivot balls

90° angle difference between the ball joints

Use ball joints WITH DOT

941016

BB 10x16x4

901316

SB M3x16

981210

P 2x10

When the bars are set, verify that both sides move at the same time. If they do, the bars are set up correctly. If not, make sure that both downstops are the same and that the bar wire is flat.

If the sides still does not

move at the same time,

adjust the length of the

bar holders.

3x4

3x3

OPTIONAL:

#337252 Alu nut #337254 Composite cup

➊

➋

➌

Page 16

REAR SUSPENSION

NOTE ORIENTATION

NOTE ORIENTATION Hole on outer side.

OPTIONAL:

#334131 Glued Brake Pad Set - Ultra-Efficient (2)

902306

SH M3x6

303122-O

SHIM 3x6x1

296530-O

N M3

303141-O

SHIM 3x5x1

303123-O

SHIM 3x6x2

Ensure that both suspension assemblies move freely.

Ensure that both suspension

assemblies move freely.

OPTIONAL:

#335305 CVD Rear Drive Shaft - Set - HUDY Spring Steel™ (1)

OPTIONAL:

#335321 Alu Rear Drive Shaft - Alu 7075 T6

INITIAL SETTING

3.2mm

7.5mm

3mm

902320

SH M3x20

STEEL

PAD

STEEL

PAD

FIBRE

PAD

NOTE ORIENTATION

FIBRE PADS FACE TOGETHER

HOLE - OVAL

HOLE - ROUND

Roughen steel plates with sandpaper before gluing fibre pads

3x5x1mm

2mm

1mm

BEARING OIL

940508

BB 5x8x2.5

940613

BB 6x13x5

903308

SFH M3x8

6x13x5

5x8x2.5

3x8

DETAIL

Page 17

REAR SUSPENSION

965070

C 7

➊

➋

NOTE ORIENTATION

OPTIONAL:

#334141 Alu Lightweight Brake Disk Adapter - Swiss 7075 T6

OPTIONAL:

#335511 2-Speed Shaft - Lightweight

901406

SB M4x6

➌

Tighten setscrew

onto flat spot

➊

➋

➍

STEP DETAIL

BEARING OIL

Pin must protrude equally

on both sides of camshaft

940508

BB 5x8x2.5

981208

P 2x8

902308

SH M3x8

901303

SB M3x3

DETAIL

Page 18

3. REAR TRANSMISSION

OPTIONAL:

#335731-O Alu Lightweight Locating Collar - Orange (2)

33 5522 ALU SMALL CARRIER FOR 2-SPEED GEAR (2nd) + BALL-BEARING - ALU 7075 T6 33 5530 DRIVE FLANGE WITH ONE-WAY BEARING - ALU 7075 T6 33 5541 COMPOSITE SMALL 2-SPEED GEAR BOX SHOE - SET 33 5554 COMPOSITE 2-SPEED GEAR 54T (2nd) - V3 33 5559 COMPOSITE 2-SPEED GEAR 59T (1st) 33 5571 ADAPTER SMALL 2-SPEED 33 5590 HEX SCREW SFH M3x6 - GRINDED (3) 33 5583 SPRING FOR SMALL GEAR BOX - MEDIUM-HARD (2) 33 5800 COMPOSITE BELT PULLEY COVER SET

33 5828 COMPOSITE BELT PULLEY 18T - 2-SPEED-SIDE

90 1303 HEX SCREW SB M3x3 (10) 90 3306 HEX SCREW SFH M3x6 (10) 90 8260 HEX SCREW SOCKET HEAD CAP M2.5x10 (10) 96 5050 E-CLIP 5 (10) 98 1210 PIN 2x10 (10) 98 1212 PIN 2x12 (10) 98 3404 ROLLER PIN 4x4 MM (2)

981212

P 2x12

965050

C 5

BAG

➊

➋

➌

➍

➎

➌

STEP DETAIL

➊

965050

335828

901303

335800

981210

335541

908260

335522

903306

335559

981212

335800

908260

335583

335590

335554

335530

965050

335571

983404

NOTE ORIENTATION

2-SPEED GEARS

335553 53T (2ND) OPTION 335554 54T (2ND) STANDARD 335555 55T (2ND) OPTION 335557 57T (1ST) OPTION 335558 58T (1ST) OPTION 335559 59T (1ST) STANDARD 335560 60T (1ST) OPTION

335653 GRAPHITE 53T (2ND) OPTION 335654 GRAPHITE 54T (2ND) OPTION 335655 GRAPHITE 55T (2ND) OPTION 335657 GRAPHITE 57T (1ST) OPTION 335658 GRAPHITE 58T (1ST) OPTION 335659 GRAPHITE 59T (1ST) OPTION 335660 GRAPHITE 60T (1ST) OPTION

DETAIL

Page 19

TRANSMISSION

ADJUSTMENT

REAR TRANSMISSION

DETAIL

901303

SB M3x3

908260

SCH M2.5x10

983404

RP 4x4

335590

SFH M3x6 GRINDED

903306

SFH M3x6

965050

C 5

981210

P 2x10

➊

➋

➌

➍

➎

NOTE ORIENTATION

➊

➋

➌

➍

➎

NOTE ORIENTATION

SHIFT-POINT SCREW

SHOE-GAP SETSCREW

Adjust the shoe gap according to the Set-Up Book

IMPORTANT!

ONE WAY LUBE

BEARING OIL

Use HUDY Reamer #107600 to slightly chamfer the edges on all 3 holes for screws

OPTIONAL:

#335531-O Alu Lightweight Drive Flange w/ 1-way Bearing - Orange

NOTE ORIENTATION

Setscrews must NOT protrude

Top of screw head

should be level with

hole bottom edge

Do not overtighten gap-setting setscrews. Only tighten until roller pins contact the center hub.

Page 20

4. FRONT SUSPENSION

30 3123-O ALU SHIM 3x6x2.0MM - ORANGE (10) 30 3454 BALL JOINT 4.9MM - OPEN (4) 30 5231 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 33 2015 ALU LOWER BULKHEAD FRONT RIGHT - SWISS 7075 T6 33 2025 ALU LOWER BULKHEAD FRONT LEFT - SWISS 7075 T6 33 2035 ALU UPPER CLAMP FRONT (L+R) - SWISS 7075 T6 33 2070 COMPOSITE ADJUST. BALL-BEARING HUB (4) 33 2083 GRAPHITE SHOCK TOWER FRONT 2.5MM 33 2112 COMPOSITE SUSPENSION ARM FRONT LOWER FOR WIRE ANTI-ROLL BAR 33 2132 COMPOSITE SUSPENSION ARM FRONT UPPER WITH HOLE 33 2170 COMPOSITE SUSPENSION ARM BACKSTOP (2) 33 2212 COMPOSITE STEERING BLOCK RIGHT FOR AERO DISC 33 2222 COMPOSITE STEERING BLOCK LEFT FOR AERO DISC 33 2290 GRAPHITE EXTENSION FOR STEERING BLOCK (2) 33 2316 COMPOSITE SUSP. ECCENTRIC BUSHING (2+2) 33 2380 COMPOSITE CASTER CLIPS (2) 33 2411 COMPOSITE FRONT ANTI-ROLL BAR HOLDER & ECCENTRIC W/O UPSTOP (2+2) 33 2440 ANTI-ROLL BAR FRONT FEMALE - HUDY SPRING STEEL™ 33 2450 ANTI-ROLL BAR FRONT MALE - HUDY SPRING STEEL™ 33 2476 ANTI-ROLL BAR FRONT 2.6 MM 33 2710 ALU LOWER 2-PIECE FRONT SUSPENSION HOLDER (1) 33 2730 ALU UPPER ARM HOLDER RIGHT - SWISS 7075 T6 - SET 33 2740 ALU UPPER ARM HOLDER LEFT - SWISS 7075 T6 - SET 33 3452 ALU ANTI-ROLL BAR PIVOT BALL 4.9 MM (2) 33 5000 FRONT GEAR DIFFERENTIAL - SET 33 5215 CVD AXLE - SUPER LIGHT - HUDY SPRING STEEL™ 33 5225 CVD DRIVE SHAFT - FRONT - HUDY SPRING STEEL™

33 5250 ALU WHEEL HUB 12MM - BLACK (2) 33 5430 PUR-REINFORCED DRIVE BELT FRONT 5 x 186 MM 33 7211 FRONT LOWER INNER PIVOT PIN (2) 33 7221 FRONT UPPER PIVOT PIN WITH FLAT SPOT (2) 33 7250 STEEL PIVOT BALL 8.4 MM (2) 33 7252 ALU ADJUSTING NUT M10x1 (4) (OPTION) 33 7253 COMPOSITE ADJUSTING NUT M10x1 WITH BALL CUP (4) 34 3481-K ALU CUTTED ANTI-ROLL BAR COLLAR - BLACK (2)

90 1302 HEX SCREW SB M3x2.5 (10) 90 1303 HEX SCREW SB M3x3 (10) 90 1306 HEX SCREW SB M3x6 (10) 90 1308 HEX SCREW SB M3x8 (10) 90 1310 HEX SCREW SB M3x10 (10) 90 1410 HEX SCREW SB M4x10 (10) 90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2312 HEX SCREW SH M3x12 (10) 90 2314 HEX SCREW SH M3x14 (10) 90 3305 HEX SCREW SFH M3x5 (10) 90 3308 HEX SCREW SFH M3x8 (10) 93 0508 BALL-BEARING 5x8x2.5 (2) 94 1016 HIGH-SPEED BALL-BEARING 10x16x4 RUBBER SEALED (2) 98 0210 PIN 2x10 (10) 98 1210 PIN 2x10 (10)

BAG

FRONT ANTI-ROLL BARS

332472 2.2 MM WIRE OPTION 332474 2.4 MM WIRE OPTION 332476 2.6 MM WIRE STANDARD 332478 2.8 MM WIRE OPTION

332441 FEMALE 0.7MM BLADE TYPE OPTION 332451 MALE 0.7MM BLADE TYPE OPTION

WHEEL HUBS

335250 STANDARD 335251 OFFSET -0.75MM OPTION 335252 OFFSET +0.75MM OPTION

PIVOT BALLS

337250 STEEL STANDARD 337251 ALU OPTION 337255 TITAN OPTION

332740

332025

902312

337221

337211

332710

332132

903308

903305

902306

332083

930508

332476

343481-K

901303

303454

980210

981210

335225

941016

332710

903305

332222

901308

902314

903308

332112

303123-O

902308

332290

335250

335000

941016

332070

901410

332170

901303

333452

303454

901302

305231

335215

332411

332450

337250

941016

337253

901303

332411

901308

335430

332730

332035

332015

332212

903305

332035

902308

901306

332380

332316

332112

901310

902310

332440

NOTE

ORIENTATION

DETAIL

2.7mm

902312

SH M3x12

903308

SFH M3x8

901410

SB M4x10

THREAD LOCK

Page 21

FRONT ANTI-ROLL BAR

ADJUSTMENT

DOWNSTOP ADJUSTMENT

FRONT SUSPENSION

Alu shim 3x6x2mm

COMPOSITE SHIM

3x7x2mm

COMPOSITE SHIM

3x7x2mm

NOTE ORIENTATION

Rearward Arm Position (B) (INITIAL SETTING) Shim in front of arm

DETAIL

The NT1 kit comes with both types of front anti-roll bars; blade-style or wire. Decide which anti-roll bar to use.

Pre-thread mount with the set-screw

After anti-roll bar is inserted, install and tighten the set-screw

OPTIONAL:

#332401-O Downstop Independent Alu Front Anti-Roll Bar - Orange

Forward Arm Position (A) Shim behind arm

ALTERNATIVE 1 (BLADE ANTI-ROLL BAR)

is recommended for long, fast tracks when maximum cornering speed is needed. With the blade anti-roll bar, the car will not dive in the corners and will maintain maximum speed. Follow the “Alternative 1“ assembly steps (starting on page 25).

is recommended for smaller, technical tracks when fast direction changes and side weight changes are needed. Follow the “Alternative 2“ assembly later in this section; do not assemble the blade bar as described immediately below.

Blade anti-roll bar (Alternative 1)

Wire anti-roll bar (Alternative 2)

The position of the front arm directly inﬂuences the steering Ackermann (angle of the steering linkages). When the arm is moved to rearward position (shim in front of the arm), the angle of the steering linkages changes and gives less Ackermann. By decreasing the Ackermann, the car gets more turn-in & increased steering at corner exit, but less cornering speed. The Ackermann can be changed by Ackermann inserts (see page 30, step 1).

IMPORTANT!

Forward arm position

REARWARD

ARM POSITION

DETAIL

DETAILDETAIL

DETAIL

901310

SB M3x10

901308

SB M3x8

902314

SH M3x14

Do not insert ball into cup too deeply or bars will bind during operation

Each anti-roll bar blade has a hex hole at its end. Use a 1.5mm hex wrench to adjust the blades.

4.5mm

Ensure that the suspension arms move freely. Ensure that the eccentric holders move freely.

When the bar is set, verify that both sides move at the same time. If they do, the bars are set up correctly. If not, make sure that both downstops are the same. If the arms still do not move at the same time, gently loosen the screw which holds eccentric bushing and rotate the bushing until the arms move at the same time. Retighten the screws fully.

OPTIONAL:

#332113 Suspension Arm Front Lower for Wire Anti-Roll Bar - Hard

1.5mm

303123-O

SHIM 3x6x2

903305

SFH M3x5

FRONT BLADE ANTI-ROLL BARS

332441 FEMALE 0.7MM BLADE TYPE OPTION 332451 MALE 0.7MM BLADE TYPE OPTION

Page 22

FRONT SUSPENSION

902308

SH M3x8

NOTE ORIENTATION

TO LOOSEN FRONT BELT: Rotate both front nylon hubs in arrow direction A

FRONT BELT TENSION ADJUSTMENT

L=R

TO TIGHTEN FRONT BELT: Rotate both front nylon hubs in arrow direction B

INITIAL POSITION

DETAIL

941016

BB 10x16x4

902306

SH M3x6

➊

➋

➌

Both bushings must be in same position

OPTIONAL:

#335431 High-Performance Kevlar® Drive Belt Front 5.0x186mm - V2

Both bushings must be in same position

NOTE ORIENTATION

BEARING OIL

NOTE ORIENTATION

DETAIL

THREAD LOCK

Page 23

FRONT ROLL CENTER

ADJUSTMENT

FRONT SUSPENSION

NOTE ORIENTATION

Tighten composite hex nuts using HUDY tool #107581

STEP DETAIL

NOTE ORIENTATION

➊

➋

➌

➍

➎

0.6mm

1mm

1.6mm

Pivot balls must move freely. During initial assembly, tighten each composite hex nut until the pivot ball starts to bind, then loosen slightly. Verify that the pivot balls move freely.

Use the composite ball cup #337254 from

BAG

Use (+0.5mm) suspension holders for initial assembly

OPTIONAL:

#332133 Composite Suspension Arm Front Upper with Hole - Hard

OPTIONAL:

332213 Composite Steering Block 1° Kingpin Right for Aero Disc 332223 Composite Steering Block 1° Kingpin Left for Aero Disc (Recomended to use for more steering)

Left and right arms

are identical

Do not tighten fully. This screw will be tightened after assembling the radio plate (see page 33).

FRONT ROLL CENTER INSERT POSITIONS

-1.5mm -0.5mm +0.5mm +1.5mm

INITIAL SETTING

902310

SH M3x10

901306

SB M3x6

OPTIONAL:

#337252 Alu Nut #337254 Composite Cup

PIVOT BALLS

337250 STEEL STANDARD 337251 ALU OPTION 337255 TITAN OPTION

DETAIL DETAIL

DETAIL

THREAD LOCK

Page 24

FRONT WHEELBASE &

CAMBER ADJUSTMENT

FRONT SUSPENSION

➊

➋

➌

➍

➎

GREASE

STEP DETAIL Tighten the screw fully when the pin is installed

➎

THREAD LOCK

➊

➋

➌

DETAIL

941016

BB 10x16x4

902308

SH M3x8

981210

P 2x10

980210

P 2x10

STEERING BLOCK

Ensure that the front suspension moves freely

4.3mm

3.7mm

STEERING BLOCK

901302

SB M3x2.5

901303

SB M3x3

BEARING OIL

NOTE ORIENTATION

MARKED "L"

MARKED "R"

WHEEL HUBS

335250 STANDARD 335251 OFFSET -0.75MM OPTION 335252 OFFSET +0.75MM OPTION

DETAIL

Page 25

FRONT SUSPENSION

Rearward Arm Position (B) (INITIAL SETTING) Shim in front of arm

Forward Arm Position (A) Shim behind arm

901308

SB M3x8

27mm

ALTERNATIVE 2 (WIRE ANTI-ROLL BAR)

1:1

Alu shim 3x6x2mm

COMPOSITE SHIM

3x7x2mm

COMPOSITE SHIM

3x7x2mm

DETAIL

Forward arm position

REARWARD

ARM POSITION

DETAIL DETAIL

IMPORTANT!

9013010

SB M3x10

902314

SH M3x14

303123-O

SHIM 3x6x2

1.5mm

FRONT ANTI-ROLL BARS

332472 2.2 MM WIRE OPTION 332474 2.4 MM WIRE OPTION 332476 2.6 MM WIRE STANDARD 332478 2.8 MM WIRE OPTION

BEARING OIL

BEARING WITH STEEL COVERS

BEARING OIL

903305

SFH M3x5

930508

BB 5x8x2.5

Page 26

FRONT SUSPENSION

901303

SB M3x3

0mm

Wire should be ﬂush with end of pivot ball.

The alu ball end must be parallel with the upper arm in order to prevent the ball end from touching the upper arm when the suspension is lifted up.

NOTE ORIENTATION

Set the bar into the center, remove the play in the

bushings, and tighten the set-screws fully.

VIEW

CENTER

When the bars are set, verify that both sides move at the same time. If they do, the bars are set up correctly. If not, make sure that both downstops are the same and that the bar wire is ﬂat. If the sides still do not move at the same time, adjust the length of the bar holders.

DETAIL

Page 27

5. FRONT TRANSMISSION

DETAIL

➊

➋

➌

➍

➎

➏

33 3071 BELT TENSIONER SET 33 5441 PUR-REINFORCED DRIVE BELT SIDE 4.5 x 390 MM 33 5712 FRONT MIDDLE SHAFT - HUDY SPRING STEEL™ - LIGHTWEIGHT 33 5722-O ALU FRONT MIDDLE SHAFT HOLDER - ORANGE 33 5790 COMPOSITE BALL-BEARING BUSHING FOR MIDDLE SHAFT (2) 33 5800 COMPOSITE BELT PULLEY COVER SET 33 5859 COMPOSITE BELT PULLEY 19T - MID-CENTER 33 5885 COMPOSITE BELT PULLEY 25T - MID-SIDE 33 5886 COMPOSITE BELT PULLEY 26T - MID-SIDE 33 6230 COMPOSITE RADIO PLATE MOUNTS (1+1) 33 6231-O ALU RADIO PLATE MOUNTS (L+R) - SWISS 7075 T6 - ORANGE (OPTION)

940613

BB 6x13x5

965050

C 5

981212

P 2x12

BAG

CUTAWAY VIEW

NOTE ORIENTATION

902312

965050

335885 335886

981212

940613

335790

335722-0

335859

940613

335800

965050

336230

333071

950510

335441

333071

335800

345732-O

335712

903308

335790

962060

903308

333071

903308

336250

903306

336271

903308

336230

BEARING OIL

962060

SHIM 6x8x0.5

33 6250 COMPOSITE BATTERY MOUNT L+R (2) 33 6271 COMPOSITE BATTERY PLATE HOLDER 34 5732-O ALU MIDDLE SHAFT LOCATING COLLAR - SHORT - LIGHTWEIGHT - ORANGE 90 2312 HEX SCREW SH M3x12 (10) 90 3306 HEX SCREW SFH M3x6 (10) 90 3308 HEX SCREW SFH M3x8 (10) 94 0613 HIGH-SPEED BALL-BEARING 6x13x5 RUBBER SEALED (2) 95 0510 BALL-BEARING FR85ZZ 5x10x4 FLANGED (2) 96 2060 WASHER S 6x8x0.5 (10) 96 5050 E-CLIP 5 (10) 98 1212 PIN 2x12 (10)

Page 28

➌

➋

➊

NOTE

ORIENTATION

TO ADJUST THE BELT TENSIONER

1. Loosen upper screw

2. Move belt tensioner as needed

3. Re-tighten the screw

3x6

3x8

DETAIL

903306

SFH M3x6

903308

SFH M3x8

903308

SFH M3x8

903308

SFH M3x8

902312

SH M3x12

950510

BB 5x10x4

NOTE

ORIENTATION

FRONT TRANSMISSION

OPTIONAL:

#336231-O Alu Radio Plate Mounts (L+R) - Swiss 7075 T6 - Orange

OPTIONAL:

#335442 High-Performance Kevlar® Drive Belt Side 4.5x396mm - V2

THREAD LOCK

Page 29

6. STEERING

30 3241 PIVOT BALL UNIVERSAL 5.8 MM WITH HEX (4) 33 2500 SERVO SAVER COMPLETE SET 33 2510 COMPOSITE SERVO SAVER 33 2540 ALU SERVO SAVER ADJUSTABLE NUT 33 2561 SERVO SAVER SPRING C=14 33 2610 ADJ. TURNBUCKLE L/R 42 MM - HUDY SPRING STEEL™ (2) 33 2660 COMPOSITE STEERING & SERVO BALL JOINT 5.8 MM (4+2)

90 1310

HEX SCREW SFH M3x10 (10) 90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 3308 HEX SCREW SFH M3x8 (10) 94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2) 97 0100 O-RING 10 x 1.5 (10)

303241

940508

332500

332510

901310

332510

332610

332660

303241

902306

332561

332540

970100

940508

332500

903308

332660

303241

902306

902308

332510

332610

332660

970100

O 10x1.5

➋

➌

➍

➎

➏

2.8mm

5mm

INITIAL PRELOAD

BAG

➊

9013010

SB M3x10

Tightening the nut makes the servo saver work harder. A harder servo saver gives the car better in-corner steering and steering response. However, a hard servo saver increases the risk of breaking the servo in serious crashes.

70.3mm

Follow the TECH TIP on page 43 to install the pivot balls

70.3mm

STEP DETAIL

➊

Page 30

STEERING

ACKERMANN ADJUSTMENT

902308

SH M3x8

940508

BB 5x8x2.5

903308

SFH M3x8

902306

SH M3x6

There are two different Ackermann inserts labeled AD and CB. You can insert each of the Ackermann inserts in two different orientations which will result in the different Ackermann settings. Note the orientation of the mounting positions.

➊

ACKERMANN SETTINGS

➋

➌

➍

INITIAL

SETTING

INITIAL SETTING

BEARING OIL

NOTE ORIENTATION

NOTE

ORIENTATION

BUMPSTEER SETTING

The new NT1 has decreased bumpsteer by 4mm compared to the previous version.

The thickness of shims changes the angles of the steering linkage. When no shims are used, the car has maximum steering response and in-corner steering. By adding shims, the car becomes less responsive, but easier to drive.

RECOMMENDED BUMPSTEER SETTING:

• when spec (big, hard tires) are used: no shims

• when softer tires or tires with additive are used: 4mm thick shim

DETAIL

➎

DETAIL

Page 31

7. FUEL TANK & ELECTRONICS

30 1324 FRONT BODY MOUNT SET +2MM HEIGHT 30 3241 BALL UNIVERSAL 5.8 MM HEX (4) 30 6310 ANTENNA TUBE (2) 30 9402 BODY CLIP FOR 6MM BODY POST (4) 33 2660 COMPOSITE STEERING & SERVO BALL JOINT 5.8 MM (4+2) 33 6000 COMPOSITE RECEIVER CASE - V2 33 6113 GRAPHITE RADIO PLATE - MULTI-FLEX™ 33 6120 COMPOSITE STEERING SERVO HOLDER - SET 33 6181 ALU RADIO PLATE MULTI-FLEX™ BUSHING - FLEX (2) 33 6182 ALU RADIO PLATE MULTI-FLEX™ BUSHING - FIXED (2)

33 6183 ALU RADIO PLATE MULTI-FLEX™ BUSHING (2) 33 6151 COMPOSITE BATTERY PLATE 33 6191 COMPOSITE ROLL-OVER BAR WITH EYELET 33 6200 STEERING SERVO ARMS - SET 33 8602 FUEL TANK 75CC - SET - V3 33 8685 FUEL TANK MOUNTING GROMMET (3) 37 1345 COMPOSITE SHIM FOR BODY POST (2) 90 1312 HEX SCREW SB M3x12 (10) 90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10)

90 2310 HEX SCREW SH M3x10 (10) 90 2312 HEX SCREW SH M3x12 (10) 90 2316 HEX SCREW SH M3x16 (10) 90 3306 HEX SCREW SFH M3x6 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 5258 SCREW PHILLIPS 2.5x8 (10) 90 7206 SCREW PHILLIPS M2x6 (10) 91 1312 HEX SCREW FL. SH M3x12 (10) 97 1035 SILICONE O-RING 3.5x2 (10) 98 1212 PIN 2x12 (10)

911312

SHF M3x12

903308

SFH M3x8

BAG

Ensure that bar is square with radio plate

Radio plate

CUTAWAY VIEW

Use 3mm lowering shims ONLY when using optional micro-size receiver battery pack

Install insert ONLY if fuel capacity is over the limit

905258

2.5x8

OPTION ONLY

CUTAWAY VIEW

3x8

3x12

3x10

371345

981212

902306

336191

902310

336183

336182

336181

903308

911312

902312

Throttle Servo (not included)

Servo Screw (not included)

336120

971035

338685

338602

902308

336000

902316

336120

303241

902308

306310

336000

336151

Receiver Battery (not included)

903308

Personal Transponder

(not included)

902306

336113

301324

309402

Steering Servo (not included)

336120

303241

336200

905258

338602

332660

901312

903306

907206

IMPORTANT!

Tighten the screws gently to make sure that the O-ring does not bind. The purpose of the O-rings is to create movement of the fuel tank in all directions.

971035

O 3.5x2

Page 32

FUEL TANK & ELECTRONICS

903308

SFH M3x8

901312

SB M3x12

902308

SH M3x8

902316

SH M3x16

Servo

grommet

Servo screw

Servo grommet

902306

SH M3x6

902312

SH M3x12

36mm

Follow the TECH TIP on page 43 to install the pivot balls

➊

➋

➌

➍

➎

➏

➊

➋

➌

➍

1.5mm

➊

➋

NOTE

ORIENTATION

➌

thin

thick

Use different servo shims

depending on your steering servo.

E=2.5mm D=1.5mm C=1mm

Use appropriate inserts for your servo, to ensure the

servo has minimal play (movement) in the servo holder.

Note the 90° angle difference

between the ball joints

3x8

3x16

3x6

3x12

3x8

981212

P 2x12

HUDY ALU SERVO HORNS

#293491 23T KO Propo, Airtronics, JR, Sanwa (OPTION)

#293492 24T Hitec (OPTION)

#293493 25T Futaba (OPTION)

Use appropriate servo arm:

K - (23T) H - (24T) F - (25T)

For more in-corner steering and better steering response, aluminum servo horns may be used.

DETAIL

Page 33

FUEL TANK & ELECTRONICS

ALU RADIO PLATE MULTI-FLEX™ BUSHINGS

ALU RADIO PLATE MULTI-FLEX™ BUSHING

RADIO PLATE MULTI-FLEX™

FLEX

NO FLEX FLEX

FIXED

When using ﬁxed bushing, tighten fully.

The ﬁxed setting is recommended for high-traction conditions.

INITIAL SETTING

When using the ﬂex bushing, tighten the screw fully and then loosen 1/8 of a turn to allow the the top deck to ﬂex.

The ﬂex setting is recommended for low-traction tracks to generate more traction.

DETAIL

3x6

3x10

Recommended for softer tires or tires with additive to improve stability and make the car easier to drive.

Recommended for spec hard tires to improve in-corner steering.

90°~95°

2.0mm

OPTIONAL:

#336091 Graphite Brace for Flex Radio Plate 2.5mm

902306

SH M3x6

902310

SH M3x10

Attach steering linkage to servo saver.

TIGHTEN FULLY

NT1 has the option to set the flex setting also by tightening and untightening the screws that connects the radio plate with the upper arm holder. By removing one of the 2 set of screws, in-corner steering is improved.

IMPORTANT

Remove only 1 screw per side: either the front or the rear screw. Repeat for the other side. Never drive with all four screws removed.

Servo arm must be perpendicular to linkage

when servo is in neutral.

When the bushing is used, the ﬂex of the radio plate around the servo saver is deactivated.

When the bushing is not used, the ﬂex of the radio plate around the servo saver is activated.

Use the screw to tight the servo saver.

DETAIL

Page 34

FUEL TANK & ELECTRONICS

DETAIL

902306

SH M3x6

902308

SH M3x8

907206

SP M2x6

903306

SFH M3x6

3x6

➊

➋

➌

Use an appropriate receiver battery pack.

The NT1 accommodates standard 5-cell receiver packs or optional micro-size packs.

Use tape to mount the receiver battery pack to the lower holder.

The battery holder has a direct effect on chassis flex and car weight.

Use the graphite battery plate to slightly stiffen the chassis flex for better stability.

Use the brass battery plate to stiffen the chassis flex and increase weight. Recommended for high-traction tracks or soft tires (or tires with additive) to eliminate traction roll and make the car easier to drive.

OPTIONAL:

#336155 - Graphite Battery Plate - V2 #336156 - Brass Battery Plate for LiPo Batteries - V2

Antenna

3x8

2x6

Personal Transponder

(not included)

Receiver (not included)

Battery (not included)

Route servo and transponder leads into box and seal with silicone sealant

If the receiver box has 2 different-size openings for cable entry (narrow and wider), cut away the tab for the appropriate opening to allow the cables to fit properly.

Page 35

8. ENGINE & CLUTCH

BAG

33 8502 XCA (XRAY CENTRIFUGAL-AXIAL) CLUTCH SET - REVERSE 33 8513 XCA CLUTCHBELL - HIGH DYNAMIC - HUDY STEEL 33 8516 XCA ALU 7075 T6 HARD COATED PINION GEAR - 16T (1ST) 33 8521 XCA ALU 7075 T6 HARD COATED PINION GEAR - 21T (2ND) 33 8533 FLYWHEEL REVERSE - FLAT - ALU 7075 T6 - HARDCOATED - 32MM 33 8540 FLYWHEEL COLLAR 7MM - NOVAROSSI (OPTION) 33 8541 FLYWHEEL COLLAR 6MM - PICCO (OPTION) 33 8550 FLYWHEEL NUT - HUDY SPRING STEEL™ 33 8556 CLUTCH BELL BUSHING - HUDY SPRING STEEL™ 33 8561 CLUTCH FLYWEIGHT SET - HIGH DYNAMIC 33 8572 ALU CLUTCH DISK - CONICAL - SWISS 7075 T6 33 8577 CLUTCH SHOE - HIGH DYNAMIC - YELLOW 33 8581 CLUTCH SPRING - MEDIUM 33 8584 SHIM 5x7x0.2 (10) 33 8585 SHIM 5x7x0.3 (10) 33 8586 SHIM 5x7x0.5 (10) 33 8590 CLUTCH SPRING CUP - ALU 7075 T6

33 8594 CLUTCH PRELOAD ADJ. NUT - HUDY SPRING STEEL™ 33 8710 ALU ENGINE MOUNT (2) 33 8720 ALU STAND FOR ENGINE MOUNT (2) 33 8732 EXHAUST MOUNTING WIRE - EXTRA-LONG

35 9050 CLUTCH BELL BALL-BEARING MR105ZZ 5x10x4 (2)

90 2306 HEX SCREW SH M3x6 (10) 90 3310 HEX SCREW SFH M3x10 (10) 90 8310 HEX SCREW SOCKET HEAD CAP M3x10 (10) 90 8316 HEX SCREW SOCKET HEAD CAP M3x16 (10) 93 0150 CARBIDE BALL-BEARING AXIAL F5-10 5x10x4 WITH GROOVE 94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2) 96 4073 WASHER S 7x10x0.2 (10) 96 4074 WASHER S 7x10x0.3 (10) 96 4075 WASHER S 7x10x0.5 (10)

Screw (not included)

Mufﬂer (not included)

Manifold (not included)

338732

338516

338513

338581

338577

338561

338533

338540 or 338541 (not included)

338584 338585 338586

908316

338710

903310

908310

Engine (not included)

908310

338720

902306

338556

338521

338594

338590

338572

338550

964073 964074 964075

940508

359050

930150

1ST PINION GEARS

338515 XCA HARDCOATED PINION GEAR - 15T (1st) OPTION 338516 XCA HARDCOATED PINION GEAR 16T (1st) STANDARD 338517 XCA HARDCOATED PINION GEAR - 17T (1st) OPTION 338518 XCA HARDCOATED PINION GEAR - 18T (1st) OPTION

2ST PINION GEARS

338520 XCA HARDCOATED PINION GEAR - 20T (2nd) OPTION 338521 XCA HARDCOATED PINION GEAR 21T (2nd) STANDARD 338522 XCA HARDCOATED PINION GEAR - 22T (2nd) OPTION 338523 XCA HARDCOATED PINION GEAR - 23T (2nd) OPTION 338524 XCA HARDCOATED PINION GEAR - 24T (2nd) OPTION

CLUTCH SPRINGS

338580 SOFT OPTION 338581 MEDIUM STANDARD 348541 ULTRA-STABILE OPTION 338583 CONICAL WASHER SET OPTION

Page 36

ENGINE & CLUTCH

Tighten the clutch nut using

HUDY tool #107581

Use the ﬂywheel collar that comes with your engine, or use optional XRAY collars:

#338540 – XRAY ﬂywheel collar for Ø6mm crankshafts #338541 – XRAY ﬂywheel collar for Ø7mm crankshafts

The ﬂywheel collar must stay inside the ﬂywheel.

If the ﬂywheel collar is too long – if it is ﬂush with the ﬂywheel or protrudes slightly – remove a small amount of material from the end, or use an XRAY collar.

Hold the ﬂywheel using HUDY Flywheel Tool #182010

Shim (for adjusting ﬂywheel distance)

964073

S 7x10x0.2

964074

S 7x10x0.3

964075

S 7x10x0.5

CORRECT

INCORRECT

Flywheel

CUT

Clutch weights are machined as 1 piece, with thin ﬁlm connecting the pieces together. You need to cut the connecting ﬁlm to separate the 3 shoes.

OPTIONAL:

#338578 Clutch Shoe - High-Dynamic - Red

10~11mm

9.2 +0.1mm

Adjust with spring preload collar

Adjust with shims behind ﬂywheel

NOTE ORIENTATION

INITIAL POSITION FOR FLYWHEEL PINS

TECH TIP FOR EXTRA BOTTOM-END POWER

For extra bottom-end power, thread a M3x4 setscrew (#901304) into each clutch ﬂyweight as shown. The setscrew will add more weight to the end of the ﬂyweight which will cause the ﬂyweight to open harder, giving more bottom-end power. This is recommended for high-traction tracks where bottom-end power is required.

After inserting the setscrew, some excess material may come out of the hole. REMOVE this excess material with a knife.

CUTAWAY VIEW

IMPORTANT!

Install setscrew into free (non-pivot) end of ﬂyweight.

(#901304 not included)

M3x4

➊

➋

➌

➍

➎

➏

TECH TIP FOR NT1 CLUTCH SHOE

To ensure that the NT1 clutch shoe works properly and for a long time, it is very important to run in the clutch shoe.

Please follow these run-in steps to help ensure proper clutch operation:

Install clutch according to this Instruction Manual.

Check that the spring preload is not too much; for run-in process use less preload.

When you start the engine, the clutch should start to engage under low RPM. If the clutch engages only under high RPM, stop the engine and loosen the spring preload collar. Repeat until the clutch engages under low RPM.

Run in the clutch shoe on the track, or on the starter box if you have only limited time. (We recommend running it in on the track.)

Run in the clutch shoe for 1 tank of fuel using a soft preload setting, and then after that slightly tighten the spring preload. DO NOT run in the clutch shoe under high RPM.

Continue this process until the clutch shoe is properly run in; this will be indicated by a dark and glossy surface colour on the top of the clutch shoe.

DETAIL

Page 37

ENGINE & CLUTCH

These shims are used to adjust clutchbell endplay.

ENDPLAY SHIMS

CLUTCH GAP SHIMS

These shims are used to adjust clutch gap.

To measure the clutch gap (0.6~0.7mm) you can also use HUDY Flywheel Tool #182010

DO NOT INSTALL this bearing when setting clutch gap.

INSTALL this bearing when setting endplay.

ø10mm

ø5.2mm

ø9.8mm

ø5.0mm

Degrease this bearing with standard bearing cleaner, and then lubricate with light bearing oil.

IMPORTANT

BEARING OIL

GRAPHITE

GREASE

338584

S 5x7x0.2

338585

S 5x7x0.3

338586

S 5x7x0.5

930150

BA 5x10

930508

BB 5x10x4

359050

BB 5x10x4

908316

SCH M3x16

5x10x4

5x8x2.5

➊

➋

NOTE ORIENTATION

To tighten the 23T pinion gear use the optional #339901 XRAY NT1 Pinion Tool (20~23T; 15~18T).

To tighten the 18T pinion gear use the optional #339901 XRAY NT1 Pinion Tool (20~23T; 15~18T).

Pull the clutchbell away from the clutch shoe and measure distance B as indicated.

Measure endplay with this bearing installed

Pull

Install the clutchbell, outer ball-bearing (small), and thrust-bearing assembly on the engine crankshaft. DO NOT install the inner ballbearing or internal shims.

Push the clutchbell onto the clutch shoe and measure distance A as indicated.

Push

The clutch gap is A - B; the correct gap is 0.6-0.7mm

If the clutch gap is greater than this, you can easily calculate the thickness of shims required to set correct gap: Thickness of shims required (in mm) = A-B-0.7

Apply shims on crankshaft to set endplay to 0.05-0.15mm

(1) ADJUSTING THE CLUTCH GAP

➊

➋

➌

(2) ADJUSTING THE ENDPLAY

Insert CLUTCH GAP SHIMS here

For example, using the values A=5.5mm, B=4.5mm Shim thickness = 5.5-4.5-0.7=0.3mm

Place shims on the small collar, outside the thrustbearing assembly.

Insert ENDPLAY SHIMS here (approximately 0.7~1.0mm)

Page 38

THREAD LOCK (screw not included)

THREAD LOCK

Attach manifold to engine using appropriate springs

903310

SFH M3x10

908310

SCH M3x10

902306

SH M3x6

ENGINE & CLUTCH

The engine should be installed on the split mounts as follows:

STEP 1: Attach lower mounts to chassis.

STEP 2: Attach upper mounts to lower mounts.

STEP 3: Attach engine to upper mounts.

STEP 4: Loosen lower mount screws, adjust gear mesh, and then

retighten lower mount screws.

After the gear mesh is initially set, you can remove the engine AND upper mounts as one assembly by removing the screws holding the upper mounts to the lower mounts. When re-installing the engine, you will not have to re-adjust the gear mesh.

THREAD LOCK

all screws

THREAD LOCK

all screws

➊

Adjust gear mesh so there is minimal play between the gears.

Too tight gear mesh will put excessive strain on all parts and damage the parts.

Too loose gear mesh may result in stripped gears.

OPTIONAL:

#338713 Alu Monoblock Engine Mount

Reinforces the chassis flex around the engine area for improved steering.

RECOMMENDED FOR MEDIUM-HIGH TRACTION TRACKS

OPTIONAL:

#338716 Brass 1-Piece Engine Mount:

Reinforces the chassis flex around the engine area and moves the weight balance more to the rear for even more steering and rotation of the car.

RECOMMENDED FOR HIGH-TRACTION TRACKS

DETAIL

Page 39

30 1321 COMPOSITE BRACE FOR BUMPER (2) 30 1323 FRONT BODY MOUNT SET +1MM HEIGHT 30 1333 REAR BODY MOUNT SET +1MM HEIGHT 30 2663 COMPOSITE BALL JOINT 4.9MM - OPEN (8) 33 1200 COMPOSITE BUMPER 33 1201 COMPOSITE WIDE BUMPER (OPTION) 33 1212 COMPOSITE UPPER HOLDER FOR BUMPER 33 1221 FOAM BUMPER - HARD - V2 (OPTION)

903308

SFH M3x8

903310

SFH M3x10

960030

N M3

3x10

3x8

BAG

9. CARB LINKAGE & BODYMOUNTS

33 1222 FOAM BUMPER FOR ANTI-ROLL BAR 33 2630 ADJ. TURNBUCKLE L/R 25 MM - HUDY SPRING STEEL™ (2) 33 6400 THROTTLE SYSTEM SET 33 6401 BRAKE SYSTEM SET 35 8950 SILICONE TUBING 1M (2.4 x 5.5MM) 35 8951 SIL. TUBING 1M (2.4 x 5.5MM) YELLOW (OPTION) 36 2650 BALL END 4.9MM WITH THREAD 6MM (2) 36 2651 BALL END 4.9MM WITH THREAD 8MM (2)

90 1303 HEX SCREW SB M3x3 (10) 90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 3310 HEX SCREW SFH M3x10 (10) 96 0030 NUT M3 (10) 98 1212 PIN 2x12 (10)

902306

332630

903308

902308

331222

981212

302663

336400

901303

902310

901303

336400

902310

981212

358950

336401

336400

362650

362651

331212

301323

301333

960030

301321

331200

903308

903310

336400

336401

Servo Screw (not included)

336400

902308

336401

OPTIONAL:

#301351-O Alu Adjustable Body Post Stop (2)

OPTIONAL:

#331201 Composite Wide Bumper

The wider front bumper is used without the foam bumper.

The wider front bumper improves steering, but may allow more front damage under hard crashes.

FRONT BODY MOUNTS

301322 0mm STANDARD 301323 +1mm STANDARD 301324 +2mm OPTION

FRONT BODY MOUNTS

301322 0mm STANDARD 301323 +1mm STANDARD 301324 +2mm OPTION

REAR BODY MOUNTS

301332 0mm STANDARD 301333 +1mm STANDARD 301334 +2mm OPTION

Page 40

NOTE ORIENTATION

981212

P 2x12

902308

SH M3x8

903308

SFH M3x8

901303

SB M3x3

902310

SH M3x10

902306

SH M3x6

Screw from servo

6mm THREAD

8mm THREAD

Insert rod through hole in brake arm. Bend rod to proper shape.

OPTIONAL:

#331216 Graphite Upper Holder for Bumper 2.5mm

OPTIONAL:

#331221 Foam Bumper for Anti-Roll Bar - Hard - V2

OPTIONAL:

#334061-O Alu Brake Post Arm - Swiss 7075 T6 - Orange

CARB LINKAGE & BODYMOUNTS

Approx.15mm

Do not overtighten screws; pivots must rotate freely

Thread

HUDY ALU SERVO HORNS

#293494 23T KO Propo, Airtronics, JR, Sanwa (OPTION) #293495 24T Hitec (OPTION) #293496 25T Futaba (OPTION)

Use appropriate servo arm:

K - (23T) H - (24T) F - (25T)

6.3mm

IMPORTANT:

It is important to have the exact length of the linkage. Too long or too short link will cause the chassis bend and unwanted tweak problems. To check that the legth is correct, composite balls must move freely.

6mm THREAD

8mm THREAD

REAR BODY MOUNTS

301332 0mm STANDARD 301333 +1mm STANDARD 301334 +2mm OPTION

THREAD LOCK

Page 41

1.0

1.1

1.2

1.0

1.1

1.2

1.0

1.1

1.2

1.0

1.1

1.2

INITIAL SETTING

SHOCK OIL

972030

O 3x2

10. SHOCK ABSORBERS

BAG

308331

308352-O

308091

303241

965023

308036

338061

338021

REAR - LONG

FRONT - SHORT

308040-O

DO NOT USE CROSSED PARTS

970121

338296

338185

972030

308331

308316

308081

308327-O

308036

303241 BALL UNIVERSAL 5.8 MM HEX (4) 308036 COMPOSITE NON-ADJUSTABLE PISTONS - DELRIN - V4 308040-O SHOCK ADJ. NUT ALU + O-RING - ORANGE (4) 308081 SHOCK ABSORBER MEMBRANE - LOW (4) 308091 SHOCK FOAM INSERTS - LOW (4) 308316 COMPOSITE SHOCK BALL JOINT - OPEN (4) 308327-O ALU CAP FOR XRAY SHOCK BODY - ORANGE (2) 308331 COMPOSITE FRAME SHOCK PARTS 4-STEP - SHORT 308352-O ALU SHOCK CAP-NUT WITH HOLE - ORANGE (2)

338001-O ALU SHOCK ABSORBER-SET - ORANGE (2) 338021 ALU SHOCK BODY (2) 338061 HARDENED SHOCK SHAFT (2) 338185 SPRING-SET D=1.8 (33 LB) LIGHT-PURPLE - MEDIUM-MEDIUM HARD - FRONT (2) 338296 SPRING-SET D=1.7 (28 LB) VIOLET - MEDIUM - REAR (2)

965023 E-CLIP 2.3 (10) 970121 O-RING 12.1x1.6 (10) 972030 SILICONE O-RING 3x2 (10)

965023

C 2.3

SHOCK OIL

NOTE

ORIENTATION

FRONT SPRINGS

338182 PROGRESSIVE C=4.0-5.6 OPTION 338183 C=4.6 DARK-BLUE OPTION 338184 C=5.0 VIOLET OPTION 338185 C=5.4 LIGHT-PURPLE STANDARD 338186 C=5.8 PURPLE OPTION 338187 C=6.3 LIGHT-RED OPTION

REAR SPRINGS

338281 PROGRESSIVE C=3.7-4.7 OPTION 338286 C=3.6 DARK-BLUE OPTION 338296 C=4.0 VIOLET STANDARD 338287 C=4.5 LIGHT-PURPLE OPTION 338297 C=5.0 PURPLE OPTION 338288 C=5.6 LIGHT-RED OPTION

DETAIL

Page 42

CORRECT

INCORRECT

Fully extend the piston rod so the piston is at the bottom of the shock body.

Hold the shock upright and slightly overﬁll the shock body with shock oil.

Let the oil settle and allow air bubbles to rise to the top. Slowly move the piston up and down until no more air bubbles appear. Add shock oil as necessary.

Pull the piston rod most of the way out of the shock body. Let the shock rest for 5 minutes to allow the air bubbles to escape.

➊

➋

➌

➍

SHOCK OIL

➊

➋

After you insert the membrane ensure that it sits properly all around the alu cup properly.

CUTAWAY VIEW

When installing the shock cap assembly on the shock body, some oil will leak out... this is normal.

Fully tighten the cap and clean off any excess oil.

After the shock is assembled, the shock rod will push itself out of the shock body fairly quickly.

Follow the next procedure to adjust the rebound.

SHOCK FILLING

4x 4x 4x

SHOCK ABSORBERS

970121

O 12.1x1.6

Be careful not to cross-thread the collar on the shock body.

1~2mm

Page 43

AFTER THE SHOCK IS ASSEMBLED YOU HAVE TO SET THE SHOCK REBOUND.

➊

Release the shock cap by 2-3 turns.

➋

Push the shock shaft fully up. For the first time the extra oil will release through the hole in the alu cap-nut.

➌

Tighten the shock cup. When tightening the shock cap, extra oil will again release through the hole in the alu

cap - nut. When tightening, the shock shaft will push out from the shock body.

RELEASE 2-3 turns

TIGHTEN

FULLY

REBOUND CHECK

It is very important to push the shock shaft into the shock body slowly otherwise air can come into the shock body which would create bubles.

100% rebound - repeat step 2 and 3 two - three times 75% rebound - repeat step 2 and 3 until the shock shaft will push out 75% of its length 50% rebound - repeat step 2 and 3 until the shock shaft will push out 50% of its length 25% rebound - repeat step 2 and 3 until the shock shaft will push out 25% of its length 0% rebound - repeat step 2 and 3 until the shock shaft will push out 0% of its length

If the shock shaft does not rebound enough, you will have to refill the shock with shock oil, and then repeat the bleeding and rebound adjustment procedure.

REBOUND ADJUSTMENT

➊ ➋ ➌

SHOCK DAMPING

SPRING RATE SELECTION

➊

➋

➌

➍

Follow this tech tip to properly install pivot balls into the top pivot and bottom ball joint.

Parts needed:

• M3 x 16 SH screw

• M3 shim

Note that the composite parts have two sides, noticeable around the pivot ball hole: one side has a shiny ﬁnish, the other side has a regular ﬁnish.

Install pivot balls into top pivot or lower ball joint as shown, on the proper sides.

Note that the lower pivot ball has an extra shoulder.

Remove screw and shim

SHINY FINISH SIDE

Ensure pivot balls move freely

SHINY FINISH SIDE

SEE TECH TIP

SHOCK LENGTH ADJUSTMENT:

It is VERY important that all shocks are equal length. Fully extend the shock absorber and measure the end-to-end length; we recommend using digital calipers to give an accurate measurement. If a shock absorber is shorter or longer than others, adjust the shock length by tightening or loosening the ball joint on the shock rod.

Tighten screw until pivot ball snaps into place

SHINY FINISH SIDE

LONGER SPRINGS

SHORTER SPRINGS

TECH TIP

SHOCK ABSORBERS

0% 50%

75%

100%

25%

OPTIONAL:

#308031-O Alu XRAY Shock Spring Retaining Collar - Orange (4)

Page 44

SHOCK POSITION

ADJUSTMENT

30 3123-O ALU SHOCK ABSORBER-SET - ORANGE (2) 30 9402 BODY CLIP FOR 6MM BODY POST (4)

33 8001-O ALU SHOCK ABSORBER-SET - ORANGE (2)

90 2306 HEX SCREW SH M3x6 (10) 90 2308 HEX SCREW SH M3x8 (10) 96 0240 NUT M4 WITH SERRATED FLANGE (10)

FINAL ASSEMBLY

902308

SH M3x8

FRONT SHOCKS

(SHORTER SPRINGS)

2mm

902308

309402

902306

338001-O

303123-O

960240

309402

960240

Wheels (not included)

INITIAL POSITION

303123-O

SHIM 3x6x2

Page 45

SHOCK POSITION

ADJUSTMENT

FINAL ASSEMBLY

902306

SH M3x6

960240

N M4

REAR SHOCKS (LONGER SPRINGS)

REAR TIRES (WIDE)

FRONT TIRES (NARROW)

OPTIONAL #335270

OPTIONAL #335370

TIRES NOT INCLUDED

INITIAL POSITION

SHOCK TOWER

NOTE ORIENTATION

ARM

Cut 2 pieces of silicone tubing and install as follows: SILICONE TUBE MARKED AS RED = FROM MUFFLER TO FUEL TANK CAP

SILICONE TUBE MARKED AS BLUE = FROM FUEL TANK TO CARBURETOR

OPTIONAL:

#335270 Graphite Aerodynamic Disk - FRONT Front aerodynamic disc: impoves steering

#335370 Graphite Aerodynamic Disk - REAR Rear aerodynamic disc: improves stability and traction

Page 46

CARB LINKAGE ADJUSTMENT

Turn on transmitter and receiver and set the throttle servo trim to the neutral position.

Adjust the idle adjustment screw on the carburetor to open approx. 0.5-1mm.

Adjust both collars on the carb and brake linkages accordingly. The carb linkage must have approximately

0.5mm of preload on the spring at neutral.

DO NOT ADJUST while the engine is running.

With the engine NOT RUNNING but the receiver turned ON, apply full throttle at the transmitter.

Adjust the transmitter‘s throttle servo high-end point so that the servo horn fully opens the carburetor when the transmitter‘s throttle control (e.g., throttle trigger) is at 95% of full throttle. The servo should not have excessive strain when at full throttle, or throttle/carb damage will result.

If the transmitter does not have throttle high-end point adjustment, adjust the throttle linkage pivot position on the servo horn until full throttle is obtained.

Adjust the composite collar on the brake linkage so the brakes work smoothly.

If the brakes apply too much or not enough, adjust the collar accordingly. If your transmitter has throttle servo lowend point adjustment (or brake adjustment), use that to set the appropriate amount of throttle servo horn throw.

NEUTRAL (IDLE)

FULL THROTTLE

BRAKE

Approx. 0.5mm

IDLE ADJUSTMENT SCREW Do not allow carburetor to close to less than 0.5mm.

Approx. 0.5-1mm

Engine idling

BRAKE ADJUSTING COLLAR

Page 47

TRACK CONDITION

TRACK TRACTION

TECHNICAL

MIXED

BUMPY

MEDIUM

SMOOTH

FAST

LOW MEDIUM

HIGH

SET-UP SHEET

FRONT CAMBER

REAR

CAMBER

WHEELBASE

RIDE HEIGHT

DOWNSTOP

-1

-2

-3

MEASURE UNDER

REAR UPRIGHT

#107712

#107702

#107712

MEASURE UNDER STEERING BLOCK

TOE IN

TOE

CAMBER

LEFT = RIGHT

ROLL

CENTER

ROLL

CENTER

-1

-2

-3

TRACK WIDTH

PINION

SPUR

RATIO

231924

GEARING

PULLEY

BODY

TOE OUT

LAPS

BEST LAP TIME

FINAL POSITION

sec

QUALIFYING POSITION

RIGHT

LEFT

RIGHT

LEFT

AERO DISK

YES

AERO DISK

YES

BRACE

YES

SHIM

FRONT ARM

2 31

ACKERMANN

POSITION

UPPER ARM POSITION

0.6

0.501.0

1.5

1.6

SHIMS BEHIND ARM

BUMP

STEER SHIM

NARROW WIDE

BUMPER

COMMENTS

UPPER

SHIMS UNDER SHOCK

LOWER

RACE

TRACK

COUNTRY

CITY

DATE

NAME

TEMPERATURE /

°F or °C

AIR TRACK

WING HEIGHT

WING POSITION

WING SIDE PLATES

WING

CHASSIS WEIGHT BALANCE

OFFSET

/mm

+0.75

-0.75

STEERING

BLOCK

1 DEGREE

STANDARD

UPPER SHOCK

POSITION

ACKERMANN

STANDARD

OTHER

FRONT ARM

ROLL CENTER

POSITION

REAR

BALANCE

BRASS

GRAPHITE

NONE

FRONT

BALANCE

BRASS

GRAPHITE

NONE

BATTERIES HOLDER

BRASS

GRAPHITE

COMPOSITE

PLUG

ENGINE

HEAD CLEARANCE

MUFFLER

MANIFOLD

CARB. DIA

FUEL

ENGINE

/mm

FLYWHEEL

CLUTCH SHOE

BRAKE PAD

CLUTCH

SPRING

CLUTCH / BRAKE

STANDARD

CLUTCH FLYWEIGHTS

STANDARD

CLEARANCE

ADJ. NUT

/mm

CAMBER LINK LOCATION

OFFSET

/mm

+0.75

-0.75

STANDARD

OTHER

REAR ARM

FLEX

SETTING

FIXED FLEX

ONE WAY DIFFERENTIAL

YES

SOLID ONE WAY DIFF.

SOLID AXLE

YES

SOLID AXLE

YES

GEAR DIFF. OIL

DIFF

cSt

SPRING

REBOUND

OIL

YES NO

YES

FOAM INSERTS

SHOCKS

PISTONS

cSt

HOLES

1.0

1.1

1.2

1.0

1.1

1.2

WIRE

MANUFACTURER

DIAMETER

5 MIN. WEAR

RUBBER TIRES

TIRES

RIGHT

LEFT

RIGHT

LEFT

SHORE

/degr.

SHIM

FLEX

SETTING

FIXED FLEX

BLADE

STANDARD

ANTI-ROLL BAR

0.7

0°

30°

45°

60°

90°

BRACE

YES

FLEX

BALANCE

FRONT

UPPER ARM

OTHER

STANDARD

OTHEROTHER

ENGINE MOUNT

STANDARD

MONOBLOCK

BRASS

Page 48

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