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Traxxas Nitro 4-Tec 3.3 48077 Owner's Manual

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MODEL 48077
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Summary of Contents for Traxxas Nitro 4-Tec 3.3 48077

  • Page 1 MODEL 48077 owner s manual ’...
  • Page 2 Radio Frequency (RF) Exposure Information The radiated output power of the Traxxas LP Device is below the Industry Canada (IC) radio frequency exposure limits. The antenna for this transmitter must not be co-located with any other transmitters except in accordance with FCC and Industry Canada multi-transmitter procedures. Co-location means having a separation distance of less than 20 cm between transmitting antennas.

  • Page 3: Before You Proceed

    Traxxas service needs. Maintenance and replacement ProGraphix are trademarks or identified by the icons below. Be sure to read them! parts may be purchased directly from Traxxas by phone or online registered trademarks of Traxxas. at BuyTraxxas.com. You can save time, along with shipping...

  • Page 4: Safety Precautions

    2 3 3+ 4 5 All of us at Traxxas want you to safely enjoy your new Nitro 4-Tec. Operate • Do not kink the antenna wire. Kinks in the antenna wire will reduce range. your Nitro 4-Tec sensibly and with care, and it will be exciting, safe, and •...

  • Page 5: Tools, Supplies, And Required Equipment

    R/C toolbox: • Safety glasses • Traxxas Ultra Premium Tire Glue, Part #6468 (CA glue) • Hobby knife • Side cutters and/or needle nose pliers Foam air filter oil and Extra •...
  • Page 6 ANATOMY OF THE NITRO 4-TEC 3.3 Chassis (lower) TRX 3.3 Racing Engine Pressure Antenna Servo Steering Tie Rod Line Mount Saver Bellcrank (Turnbuckle) see pg. 15 for details Pipe Front Camber Link Receiver Header Racing Tires Hanger (Turnbuckle) Pipe EZ-Start Motor Front Bumper Plate...

  • Page 7: Quick Start: Getting Up To Speed

    QUICK START: GETTING UP TO SPEED The following guide is an overview of the procedures for getting your Nitro 4-Tec 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 the 1.

  • Page 8: Radio System

    NiMH - Abbreviation for nickel-metal hydride. Rechargeable NiMH batteries offer high current handling, and much greater resistance Your model includes the latest Traxxas TQi 2.4GHz transmitter with To prevent loss of radio range to the “memory” effect. NiMH batteries generally allow higher Traxxas Link ™...

  • Page 9: Transmitter And Receiver

    RADIO SYSTEM Your model is equipped with the TQi 2.4 GHz transmitter with Traxxas Link Model Memory. The transmitter has two channels for controlling your throttle and steering. The receiver inside the model has 5 output channels. Your model is equipped with two If the power indicator doesn’t...

  • Page 10: Installing Transmitter Batteries

    Traxxas’ integrated TRX Power System is the easiest way to add the power and economy of rechargeable batteries to your Nitro 4-Tec. Consult your hobby dealer for purchasing information.
  • Page 11 TRAXXAS TQ RADIO SYSTEM RADIO SYSTEM CONTROLS red indicating a failure to link. If you miss it, simply turn off the transmitter and start over. Remember, always turn the TQi transmitter on first and • Always have the transmitter and receiver turned on before you off last to avoid damage to start the engine.
  • Page 12 TRAXXAS TQ RADIO SYSTEM USING THE RADIO SYSTEM Throttle The TQi Radio System has been pre-adjusted at the factory. The When the engine is running, adjustment should be checked before running the model, in case of do not use the throttle trim movement during shipping.

  • Page 13: Setting Up The Antenna

    TRAXXAS TQ RADIO SYSTEM Steering Sensitivity (Exponential) or on tracks that favor sweeping turns where gentle steering inputs The Multi-Function knob on the TQi transmitter has been are required. The ranges are exaggerated for illustrative purposes. To prevent loss of radio range...

  • Page 14: The Trx 3.3 Racing Engine

    INTRODUCTION The TRX ® 3.3 Racing Engine is the next generation of TRX nitro Traxxas strongly discourages power. The larger displacement and advanced porting generate changing or modifying any class-leading horsepower while still maintaining the TRX Racing part of the TRX 3.3 Racing Engine characteristics of broad, linear power delivery and ease of Engine.
  • Page 15 THE TRX 3.3 RACING ENGINE TRX 3.3 RACING ENGINE ILLUSTRATED Head Protector Nitro 4-Tec’s fuel tank is Air Filter equipped with a built-in Base PowerTune head ™ sintered bronze fuel filter. (Cylinder head) Idle Speed Air Filter Screw Housing EZ-Start Drive Unit EZ-Start Motor Low-Speed Needle High-Speed...

  • Page 16: Terms To Know

    The break-in procedure can be different for Flame-out - Occurs when the engine stops running at high rpm. different makes of engines. Follow the Traxxas directions for break- Usually the fault of an excessively lean fuel mixture or glow in exactly.
  • Page 17 Leaning the mixture - Turning either the high-speed and/or low- to the tank. On a Traxxas model this is done by holding your finger speed needle(s) clockwise to decrease the amount of fuel the over the exhaust tip for one or two seconds while the engine is engine receives.
  • Page 18 • Top Fuel is the only fuel which is 100% certified for use in Traxxas engines. fuel dispensing bottle on When using Traxxas Top Fuel, using higher nitro percentages does •...

  • Page 19: The Air Filter

    5. Oil the foam element with foam filter oil. Use the supplied Traxxas filter oil (part# 5263) or a high-quality, special-purpose foam filter The TRX 3.3 Racing Engine air filter assembly consists of 3 pieces:...
  • Page 20 THE TRX 3.3 RACING ENGINE THE CARBURETOR air is more dense (more air molecules) for a given volume of air and therefore requires more fuel (more fuel molecules) to maintain the See page 27 for more Understanding the Carburetor adjustments information on how air correct air/fuel ratio.
  • Page 21 THE TRX 3.3 RACING ENGINE The engine’s performance is directly linked to the fuel mixture. Richen Richening the fuel mixture increases the amount of fuel in the See Tuning Your TRX 3.3 Water Valve air/fuel mixture ratio and leaning the fuel mixture decreases the Racing Engine on page 26 (Controls Overall Flow) for complete information on...
  • Page 22 THE TRX 3.3 RACING ENGINE THE TRAXXAS EZ-START ELECTRIC STARTING SYSTEM Installing the EZ-Start Battery The Traxxas EZ-Start brings the convenience of push-button electric Using Other Chargers engine starting to your Nitro 4-Tec. The EZ-Start consists of a hand-held 1. Press the tab in the end of the battery Another convenient option control unit and an on-board motorized starter.
  • Page 23 THE TRX 3.3 RACING ENGINE Protection Mode The EZ-Start uses Smart Start technology to monitor the condition ™ When the EZ-Start controller of the system and detect failures. The controller monitors the load is in protection mode, wait being placed on the EZ-Start motor. If the load becomes excessive, at least three minutes before the system shuts off power to the motor to prevent costly damage attempting to start the...
  • Page 24 This type of engine design relies on a very Remember on page 4 for • Keep extra Traxxas glow plugs handy. The break-in process can cause precise running fit between the piston and sleeve for cylinder sealing. other precautions.
  • Page 25 3-second count, hold for 2 more seconds, and then Only use the Traxxas break-in thousand two, and then stop. Repeat this starting and stopping gently apply the brake to stop. Count the five seconds out while procedure.
  • Page 26 THE TRX 3.3 RACING ENGINE Winter Break-in Tips • We do not recommend that you operate your engine below 35° During the break-in process, the piston and sleeve wear into Fahrenheit. If you insist on running your vehicle below 35°F, be aware When tuning for each other to form a precise fit.
  • Page 27 THE TRX 3.3 RACING ENGINE Before you begin tuning, the engine should be warmed up to its normal 2. Bring the vehicle in and pinch closed the fuel line going into the operating temperature and running slightly rich. All final tuning adjustments carburetor (use the engine shut-off clamp).
  • Page 28 Once the engine is tuned, then observe the temperature. Fine-Tuning the Carburetor The Traxxas Link application’s dashboard temperature gauge can aid you After fine-tuning your TRX 3.3 Racing Engine at the end of the break-in in tuning by giving you a relative indication of how your adjustments are procedure, no major adjustments to the fuel mixture are usually necessary.
  • Page 29 These items are available from your hobby dealer. In an effort to caused by drivetrain friction, or over-revving caused by loose or continually upgrade our products, Traxxas reserves the right to make missing parts. improvements and modifications to this model, which may not be reflected in the photographs and specifications printed in this manual.
  • Page 30 0° 0° ADJUSTING YOUR NITRO 4-TEC 3.3 Once you become familiar with driving your Nitro 4-Tec 3.3, you may ALIGNMENT SPECS wish to make adjustments for better driving performance. The Nitro 4-Tec is supplied with soft-compound, race-quality tires. It is important that your Due to the high power output of the TRX 3.3 Racing Engine and the engine is properly tuned and Adjusting the Shift Point...
  • Page 31 ADJUSTING YOUR NITRO 4-TEC 3.3 Toe-in Belt Tension Adjustments Set the steering trim on your transmitter to neutral. Now, adjust your The Nitro 4-Tec’s front and middle drive At no time should the body tie rods so that both wheels are pointing straight ahead and are belts are designed to have a high initial of the model strike the ground or interfere with...
  • Page 32 Spur Gears 1.85 3.15 Moderate acceleration If you have questions or need technical assistance, call Traxxas at 1-888-TRAXXAS (1-888-872-9927) (U.S. residents only) Nitro 4-Tec gear ratios must be changed as 1st and 2nd gear sets in order to maintain compatible gear center distances. The gear ratio chart gives the only four compatible ratio choices.
  • Page 33 • Clean and re-oil the air filter. The instructions for this procedure are You must perform after-run maintenance on your Traxxas consider exchanging your on page 19. We cannot stress enough the value of cleaning your air...
  • Page 34 MAINTAINING AND STORING YOUR NITRO 4-TEC 7. Connect the EZ-Start controller to the model and spin the engine for between the chassis and flywheel. Using 10 seconds. the chassis for leverage, rotate the flywheel Denatured alcohol (available counterclockwise by pressing down on the 8.

  • Page 35: Tq I Advanced Tuning Guide

    Connecting mode The TQi radio system automatically keeps track of what vehicles it has bound a paired device. to and what settings were used for each--up to 30 models total! Traxxas Link Slow blue See above for information on pairing Pairing mode (0.5 sec on / 0.5 sec off)
  • Page 36 Many When the Multi-Function knob is set to device and the Traxxas Link application. All the features described racers set Dual Rate so they have only as much steering throw as...
  • Page 37 Press SET to delete the model. Press and hold MENU to Setting Lock turn them on and drive. With Traxxas Link Model Memory, return to driving mode. Once you’ve adjusted all of these settings the way you like...
  • Page 38 3. Press SET. The red LED will blink in single intervals to indicate Steering Dual Rate has been selected. Model Locking Unlock Press Traxxas Link Press 4. Press MENU twice. The red LED will blink three times repeatedly to One Blink Green One Blink Red Four Blinks Green indicate Steering Percentage has been selected.
  • Page 39 ADVANCED TUNING GUIDE Set Multi-Function knob for STEERING Press/hold MENU Press SET Press SET to confirm Press/hold MENU MENU TREE FORMULAS SENSITIVITY (Expo) green LED blinks red LED blinks green LED blinks (x8) returns to driving mode To select functions and make adjustments to the TQi transmitter without Set Multi-Function referencing the menu tree, turn your transmitter on, find the function in the knob for THROTTLE...
  • Page 40 ’ MODEL 48077 6200 TRAXXAS WAY MCKINNEY TEXAS 75070 1-888-TRAXXAS 140408 KC2075-R00...

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