Description

The Speedhut 4" 10K RPM Shift-light Tachometer (R4-TC4-DATZ) is an essential instrument for monitoring your engine’s performance. This 4-inch gauge provides accurate real-time RPM readings up to 10,000, allowing you to maximize your engine’s power and efficiency. Featuring intensely bright internal shift lights, it enhances performance monitoring by providing clear visual cues for optimal gear changes. Calibrated to work seamlessly with any gas engine utilizing a standard spark plug ignition system with a tach signal over one volt, this tachometer is compatible with 1 to 12 cylinder engines. Its robust construction and straightforward installation process make it a valuable tool for achieving peak engine responsiveness.

KEY FEATURES AND BENEFITS:

• Provides precise RPM readings up to 10,000 for accurate engine monitoring.
• Features intensely bright internal shift lights for improved performance driving.
• Calibration Range: Offers calibration from 1/2 pulse to 6 pulses per revolution for versatile shift light settings.
• Pointer Accuracy: Ensures pointer precision even in demanding driving conditions.
• Engine Compatibility: Works with any gas engine and tach signal over one volt.
• Ignition System: Compatible with 1-12 cylinder engines using standard spark plug ignition systems.
• Designed with a rugged build for long-lasting performance.
• Offers easy installation.
• Helps in achieving peak engine efficiency and responsiveness.
• Mounting Ring: Includes a gauge mounting ring for simplified setup.

SPECIFICATIONS:

• Measurement System: Standard
• Gauge Type: Tachometer
• Tachometer Signal Type: Standard spark plug ignition systems
• Compatibility: 1-12 cylinder
• Range: 10K RPM
• Size: 4 inch
• Hole Size: 3.95 inches (100mm)
• Internal Shift Light: Yes
• Gauge Mounting Ring: Included
• Ships With:
  • 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
  • 8 ft Tachometer Harness – for LED Lit Gauges (1 Wire 2 Pin Connector)

HOW TO USE:

1. Mount the Gauge: Locate a suitable position on your dashboard or mounting panel and create a 3.95-inch (100mm) diameter hole. Secure the tachometer using the included mounting ring.
2. Connect the Power and Lighting Harness: Connect the 3 ft Power & Lighting Harness to a suitable power source (typically a switched 12V source) and ground in your vehicle. This harness will also power the gauge’s internal lighting.
3. Connect the Tachometer Signal Harness: Connect the 8 ft Tachometer Harness to the RPM signal output from your vehicle’s ignition system. This is usually a wire coming from the negative side of the coil or the ECU, depending on your vehicle. Ensure a secure connection.
4. Ground the Tachometer Signal Harness: Connect the ground wire from the 8 ft Tachometer Harness to a reliable ground point on your vehicle’s chassis.
5. Calibrate the Shift Light (Optional): If desired, calibrate the internal shift light according to your engine’s optimal shift points. This often involves setting the number of pulses per revolution based on your engine type (refer to your vehicle’s service manual or Speedhut’s instructions if available).
6. Test the Gauge: Start your engine and observe the tachometer’s readings to ensure proper functionality and accuracy. Verify that the shift light activates at the set RPM.

BENEFITS OF USING THE SPEEDHUT 4" 10K RPM SHIFT-LIGHT TACHOMETER (R4-TC4-DATZ):

• The precise RPM readings allow you to stay within the optimal power band, leading to improved acceleration and efficiency.
• The integrated, bright shift light offers immediate visual cues for timely gear changes, especially useful in racing or performance scenarios.
• Its compatibility with a wide range of gasoline engines and standard ignition systems makes it a versatile upgrade for most vehicles.
• The rugged construction ensures long-term reliability, even in demanding driving conditions.
• Installation is simple, allowing quick deployment of the tachometer’s benefits without complex wiring or setup.

FEATURES:

• Real-Time Engine Speed Display: Shows the current RPM of your engine with accuracy.
• Adjustable Shift Point Indication: Internal lights signal the ideal moment to shift gears.
• Broad Engine Compatibility: Functions with 1 to 12 cylinder gasoline engines.
• Spark Plug Ignition System Integration: Designed for standard ignition signal input.
• Compact 4-Inch Diameter: Fits easily into most gauge setups.
• Included Mounting Hardware: Comes with a ring for secure installation.
• Wiring Harnesses Provided: Includes necessary cables for power, lighting, and RPM signal connection.
• Durable Construction: Built to withstand typical automotive environments.