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MODEL 4809
owners manual
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Introduction ™ 3 Before You Thank you for purchasing the Traxxas Nitro 4-Tec 3.3 all-wheel-drive Proceed Traxxas Support nitro supercar. The Nitro 4-Tec 3.3 was designed to deliver extreme ® Traxxas support is with you every step of the way. power for expert drivers. It is the most powerful Ready-To-Race all- 4 Safety wheel-drive nitro supercar ever conceived. The incredible TRX 3.3 Refer to the next page to find out how to contact Precautions Racing Engine is bigger, faster, and puts out a who
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Before You Proceed Carefully read and follow all instructions in this and any accompanying Warnings, helpful hints, & cross-references Traxxas materials to prevent serious damage to your Nitro 4-Tec 3.3. Failure to Throughout this manual, you’ll notice warnings and helpful hints 1100 Klein Road follow these instructions will be considered abuse and/or neglect. Plano, Texas 75074 identified by the icons below. Be sure to read them! Phone: 972-265-8000 Toll-free 1-888-TRAXXAS WARNING! NOT A TOY! R
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Safety Precautions All of us at Traxxas want you to safely enjoy your new Nitro 4-Tec 3.3. Do not operate your Nitro 4-Tec at night, or anytime your line of sight to Operate your Nitro 4-Tec sensibly and with care, and it will be exciting, All instructions and the model may be obstructed or impaired in any way. safe, and fun for you and those around you. Failure to operate your Nitro precautions outlined in 4-Tec in a safe and responsible manner may result in property damage this manual should
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Tools, Supplies, and Required Equipment Your Nitro 4-Tec 3.3 comes with a set of specialty metric tools. You’ll need to purchase other items, available from your hobby dealer, to operate and maintain your model. Supplied Tools and Equipment For more information on radio system batteries, see Use the Right Batteries on page 11. A peak-detecting charger, Glow plug and such as the TRX Power Turnbuckle wrenches U-joint wrench 4-way wrench wheel nut wrench Charger (part #3030X), is recommended for b
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Anatomy of Your Nitro 4-Tec 3.3 Chassis (lower) TRX 3.3 Racing Engine Pressure Antenna Servo Steering Tie Rod see pg. 18 for details Line Mount Saver Bellcrank (Turnbuckle) Pipe Receiver Front Camber Link Header Hanger Racing Tires (Turnbuckle) Pipe Crystal EZ-Start Access Motor Front Bumper Plate Shock Tower Body Mount EZ-Start Plug Rear Differential Air Drive Belt Fuel Line Filter Body Pulley Mount Center Bearing Drive Belt Block Shock Rear Front (Oil Damper) Suspension Arm Throttle/Brake S
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Quick Start: Getting up to Speed The following guide is an overview of the procedures for getting your Nitro 4-Tec 3.3 running, from opening the box to breaking in and tuning your engine. Refer to the pages indicated for details on each step. Look for the Quick Start logo on the bottom corners of Quick Start pages. The Quick Start Guide is not intended to replace 1. Read the safety precautions on page 4 10. Check servo operation • See page 16 the full operating For your own safety, understan
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Decorating Installing your Nitro 4-Tec 3.3 Body Applying The Decals Installing The Body Mounts The main decals have already been The body mount parts are located Installing Front Body Mounts applied to your Nitro 4-Tec. The extra in a separate bag with your decals provided are die-cut for easy instructions. The front body mount Foam Bumper removal. Use a hobby knife to lift the posts attach to the front bumper with 3x10mm countersunk cap corner of a decal and remove it from screws. Slide the f
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The Traxxas TQ Radio System Your Nitro 4-Tec (model 4809) is equipped with the TQ Radio System. The TQ is a 2-channel system that provides high-power output up to a quarter mile and control for two servos. The Nitro 4-Tec makes use of two channels for throttle/brake and steering. TQ Transmitter Nitro 4-Tec 3.3 Wiring Diagram 4-Cell Battery Throttle Neutral Adjust Antenna Holder Steering Wheel Throttle Trim Steering Trim On/Off Switch Steering Servo Antenna Throttle Servo Throttle Trigger Batter
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The Traxxas TQ Radio System Radio System Terminology NiCad - Abbreviation for nickel-cadmium. The original rechargeable Please take a moment to familiarize yourself with these radio-system Learn terms related to the hobby pack, NiCad batteries have very high current handling, high terms. They will be used throughout this manual. TRX 3.3 Racing Engine capacity, and can last up to 1000 charging cycles. Good charging beginning on page 19. procedures are required to reduce the possibility of develop
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The Traxxas TQ Radio System Installing Transmitter Batteries Your TQ transmitter uses 8 AA batteries. The battery compartment is Use the Right Batteries located in the base of the transmitter. Your transmitter uses AA batteries. Use new alkaline batteries, or rechargeable batteries such as NiCad or NiMH (Nickel Metal Hydride) batteries in your transmitter. Make sure rechargeable batteries are 4. Turn on the transmitter and check the power indicator for a fully charged according to solid red lig
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The Traxxas TQ Radio System Installing the Receiver Batteries 4. Install the battery holder into the car If you use rechargeable The radio receiver in your Nitro 4-Tec uses 4 AA batteries. The receiver and secure it to the top plate with the batteries in your receiver, battery holder is located underneath the top plate, just to the right of be aware that when they reusable zip-tie. Make sure the battery the fuel tank. begin to lose their charge, holder is secure in the model and will not the
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The Traxxas TQ Radio System Setting up the Antenna Antenna Tip You must install the antenna mast (tube) before you operate your Spray a little window Nitro 4-Tec. You’ll find the plastic antenna tube and tip in the bag cleaner on the antenna with your manuals and documentation. wire to make it easier Antenna Sleeve to push through the antenna tube. 1. Locate the black antenna wire that exits the receiver cover. The receiver cover is located between the fuel tank and the tuned pipe. The antenn
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T H G I R N R U T The Traxxas TQ Radio System There are two settings available: TQ Radio System Controls Steering 50/50: Allows equal travel for both acceleration and braking. 70/30: Allows more throttle travel (70%) and less brake travel (30%). 50/50 is the required setting for Nitro 4-Tec with the TRX 3.3 Racing Engine. Electronic Throttle Trim The electronic throttle trim located on the face of the transmitter adjusts the neutral (center) point of the throttle servo when the servo is at re
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The Traxxas TQ Radio System Always have the transmitter and receiver turned on before you start TQ Radio System Rules the engine. Never turn the radio system off while the engine is Each time you prepare to run your Nitro 4-Tec, Channel 1 Remember, always turn the running. The on/off switch in the model only turns the receiver on you must clear your frequency to be sure no Brown TQ transmitter on first and and off. It does not turn off the engine. one else in the area is using the same channel
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The Traxxas TQ Radio System Using the TQ Radio System 7. Once adjustments are made, turn off the receiver on your Nitro 4-Tec, The TQ Radio System was pre-adjusted at the factory. The adjustment When the engine is running, followed by the hand-held transmitter. should be checked before running the model, in case of movement do not use the throttle trim on the transmitter to adjust during shipping. Here’s how: Throttle the engine idle speed. Always use the idle speed 1. Fully extend the chrome an
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™ The TRX 3.3 Racing Engine Introduction The TRX 3.3 Racing Engine is the next generation of TRX nitro power. Traxxas strongly The larger displacement and advanced porting generate class-leading discourages changing or horsepower while still maintaining the TRX Racing Engine characteristics of modifying any part of the TRX 3.3 Racing Engine. Old broad, linear power delivery and ease of tuning. Focused engineering and tech tips and tricks that rigorous testing have yielded unprecedented power an
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The TRX 3.3 Racing Engine TRX 3.3 Racing Engine Illustrated Air Filter Head Protector Base ™ PowerTune head (Cylinder head) Idle Speed Air Filter Screw Housing EZ-Start Drive Unit EZ-Start Motor Low-Speed Needle High-Speed Needle Throttle Arm Fuel Intake Engine Mount Air Intake Crankcase Carburetor Flywheel Clutch Bell Crankshaft Glow Plug Wire EZ-Start EZ-Start Plug Controller Positive Wire Ground Wire Pressure Line Negative Wire Fuel Line Engine Shut-off Clamp Header Tuned Pipe Fuel Tank 18 N
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The TRX 3.3 Racing Engine Crankcase - The engine’s “body” that contains all of the running Terms to Know mechanical components. You’ll find these Nitro R/C engine terms throughout this section Crankshaft - The main shaft of the engine that holds the of the manual. reciprocating assembly. Cooling fins - The cooling fins are milled into the cylinder head and .15 - .15 or “15” refers to the displacement of the engine. The TRX 2.5 crankcase and cause heat to be drawn away from the engine. Heat is
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The TRX 3.3 Racing Engine Glow plug driver - This tool clips onto the glow plug and supplies the Port - Ports are openings in the sleeve that allow atomized fuel to enter required voltage to light the glow plug element. It is also called an the combustion chamber and burned exhaust gases to exit. The shape igniter. EZ-Start equipped engines do not require this separate tool. and location of the ports are a large factor in controlling the engine Header - The aluminum tube that connects the exhaus
