Description

The Speedhut 4" Cobra 8K RPM Tachometer (L4-TC3-COB) is an essential instrument for monitoring your engine’s performance. Designed with precision in mind, this 4-inch gauge provides accurate real-time RPM readings up to 8,000, allowing you to optimize your engine’s capabilities. Its compatibility with standard spark plug ignition systems across 1 to 12 cylinders makes it a versatile tool for a wide range of vehicles. The included mounting ring ensures straightforward installation, and the provided wiring harnesses simplify the connection process.

KEY FEATURES AND BENEFITS:

• Precise RPM Monitoring: Delivers accurate and instantaneous readings of your engine’s revolutions per minute, crucial for performance optimization.
• Broad Engine Compatibility: Functions seamlessly with engines utilizing standard spark plug ignition systems, ranging from 1 to 12 cylinders.
• Wide RPM Range: Displays engine speeds up to 8,000 RPM, suitable for various engine types and driving conditions.
• Easy Installation: Comes with an included gauge mounting ring and wiring harnesses, facilitating a simple and secure setup.
• Robust Design: Engineered for reliability, ensuring consistent pointer precision even under demanding conditions.
• Versatile Signal Compatibility: Calibrated to work effectively with any engine and tach signal exceeding one volt.

SPECIFICATIONS:

• Gauge Type: Tachometer
• Compatibility: 1-12 cylinder engines with standard spark plug ignition systems.
• Range: 0-8,000 RPM
• Size: 4 inches (diameter)
• Hole Size: 3.95 inches (100mm)
• Internal Shift Light: No
• Included:
  • 8 ft Tachometer Harness – for LED Lit Gauges (1 Wire 2 Pin Connector)
  • 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
  • Gauge Mounting Ring

HOW TO USE:

1. Mount the Gauge: Choose a suitable location on your dashboard or instrument panel and drill a 3.95-inch (100mm) diameter hole. Secure the tachometer using the included mounting ring.
2. Connect the Power Harness: Connect the 3 ft Power & Lighting Harness to a suitable power source in your vehicle (typically 12V), ensuring proper polarity (positive and ground). This harness also powers the LED illumination.
3. Connect the Tachometer Signal Harness: Connect the 8 ft Tachometer Harness to the tachometer signal wire from your engine’s ignition system (usually from the negative side of the ignition coil or a designated tach output from the ECU).
4. Connect the LED Lighting: Ensure the 1 Wire 2 Pin Connector of the Tachometer Harness is properly connected to the gauge for the LED backlighting to function.
5. Verify Connections: Double-check all wiring connections to ensure they are secure and correct.
6. Test the Gauge: Start your engine and observe the tachometer’s reading to confirm it is functioning correctly and displaying the engine’s RPM.

BENEFITS OF USING THE SPEEDHUT 4" COBRA 8K RPM TACHOMETER (L4-TC3-COB):

• Enables precise monitoring of engine rotational speed for optimal performance and fuel efficiency.
• Helps prevent engine damage from over-revving by providing accurate RPM feedback.
• Supports better control and responsiveness under various driving conditions.
• Essential for tuning and performance adjustments in racing or enthusiast applications.
• Simple installation makes it easy to integrate into your existing instrumentation setup.

FEATURES:

• Displays engine speed in Revolutions Per Minute (RPM) up to a maximum of 8,000.
• Designed for direct compatibility with standard spark plug ignition systems.
• Suitable for a wide array of engines with cylinder counts ranging from 1 to 12.
• Features a 4-inch diameter gauge face for clear and easy readability.
• Requires a 3.95-inch (100mm) mounting hole for a secure fit in your dashboard.
• LED backlighting ensures excellent visibility during both day and night driving conditions.
• Includes all necessary wiring harnesses for power, lighting, and RPM signal connection.
• Comes with a mounting ring to facilitate a clean and professional installation.
• Engineered for accurate pointer movement, providing reliable RPM readings.
• Compatible with tachometer signals exceeding one volt from the engine.