Description

The Speedhut 3-3/8" 10K RPM Shift-light Tachometer (R3-TC4-REV) is an essential instrument for drivers seeking accurate engine speed monitoring and improved performance. Featuring intensely bright internal shift lights, this tachometer provides clear visual cues for optimal gear changes, allowing you to maximize your engine’s power output. It is calibrated to work seamlessly with any gas engine that utilizes a standard spark plug ignition system and produces a tach signal over one volt. Its robust construction and user-friendly installation make it a valuable tool for achieving peak engine efficiency and responsiveness in various driving conditions.

KEY FEATURES AND BENEFITS:

• Provides precise real-time RPM readings: Up to 10,000 RPM.
• Features integrated, highly visible shift lights: For enhanced performance driving.
• Offers broad compatibility: Works with 1 to 12 cylinder engines using standard spark plug ignition systems.
• Simple to install: Includes mounting ring and wiring harnesses.
• Calibratable pulse range: From 1/2 pulse to 6 pulses per revolution.
• Engineered for accuracy: Maintains pointer precision even in demanding conditions.

SPECIFICATIONS:

• Gauge Type: Tachometer
• Range: 0 – 10,000 RPM
• Size: 3 3/8 inch (85.725 mm)
• Hole Size: 3.3 inches (84 mm)
• Shift Light: Internal
• Compatibility: 1-12 Cylinder Standard Spark Plug Ignition Systems
• Included: 8 ft Tachometer Harness (1 Wire 2 Pin Connector),
  3 ft Power & Lighting Harness

HOW TO USE:

1. Mount the Gauge: Secure the tachometer in a suitable location on your dashboard using the included mounting ring. Ensure the 3.3" (84mm) hole is prepared for installation.
2. Connect the Power and Lighting Harness: Connect the 3 ft Power & Lighting Harness to a suitable power source in your vehicle, typically a 12V accessory or ignition wire, and to a ground point. This harness also powers the internal lighting.
3. Connect the Tachometer Signal Harness: One end connects to the 2-pin connector on the back of the tachometer. The other connects to the tachometer signal output from your vehicle’s ignition system—typically from the negative (-) side of the ignition coil or the ECU’s tach output.
4. Calibration (If Necessary): Adjust the tachometer according to your engine’s pulse per revolution requirement (1/2 to 6). Refer to the user manual for step-by-step calibration instructions.
5. Test the Functionality: Start the engine and observe the tachometer’s RPM reading. Ensure the shift light activates at the desired RPM.

BENEFITS OF USING THE SPEEDHUT 3-3/8" 10K RPM SHIFT-LIGHT TACHOMETER (R3-TC4-REV):

• Improved Shift Timing: The internal shift light ensures accurate gear changes, enhancing performance.
• Accurate Engine Monitoring: Helps avoid over-revving and potential damage by offering real-time RPM data.
• Enhanced Driving Experience: Enables better control, especially during high-performance driving.
• Versatile Compatibility: Works with a wide variety of gasoline engines from 1 to 12 cylinders.
• Easy Installation: Comes with all necessary components for a straightforward setup.

FEATURES:

• Bright internal LED shift lights: Provide immediate visual alerts.
• Precise stepper motor movement: Ensures accurate needle readings.
• Wide 10,000 RPM range: Accommodates various engine types.
• Standard 3 3/8" (85.725 mm) size: Fits most aftermarket gauge pods.
• Designed for use with spark plug ignition systems: For compatibility across many vehicle types.
• Includes wiring harnesses: Provides power, lighting, and RPM signal input.
• Comes with a mounting ring: Ensures secure installation.