Speedhut 2-5/8″ 4K RPM Shift-light Tachometer (R25-TC1-REV)

The Speedhut 2-5/8″ 4K RPM Shift-light Tachometer (R25-TC1-REV) is a precision instrument designed to provide accurate engine speed readings for a wide range of vehicles. Featuring a clear 4,000 RPM scale and an integrated shift light, this tachometer helps drivers optimize their gear changes for improved performance and efficiency. Its 2 5/8 inch size ensures it can fit into common gauge mounting locations, and its compatibility with standard spark plug ignition systems across 1 to 12 cylinders makes it a versatile choice for many applications. The included mounting ring and wiring harnesses simplify the installation process, allowing you to quickly and easily add this essential monitoring tool to your vehicle.

KEY FEATURES AND BENEFITS:

• Accurate RPM Measurement: Provides precise readings of your engine’s revolutions per minute up to 4,000 RPM, allowing for informed driving decisions.
• Integrated Shift Light: A built-in, adjustable shift light visually cues the driver to shift at the optimal RPM, maximizing acceleration and preventing engine over-revving.
• Wide Compatibility: Designed for use with standard spark plug ignition systems and compatible with engines having 1 to 12 cylinders, offering broad application across various vehicles.
• Convenient Size: The 2 5/8 inch gauge diameter is a popular and practical size that fits into many standard gauge pods and dashboard locations.
• Complete Installation Kit: Ships with an 8 ft tachometer harness and a 3 ft power & lighting harness, ensuring you have the necessary wiring for installation.
• Mounting Hardware Included: Comes with a gauge mounting ring, simplifying the installation process and providing a secure fit.

SPECIFICATIONS:

• Gauge Type: Tachometer
• Standard or Metric: Metric, Standard (refers to physical dimensions)
• Tachometer Signal Type: Standard spark plug ignition systems
• Compatibility: 1-12 cylinder engines
• Range: 0-4,000 RPM
• Size: 2 5/8 inch (66.675 mm)
• Hole Size: 2.67 inches (68 mm)
• Internal Shift Light: Yes
• Gauge Mounting Ring: Included
• Ships With: 8 ft Tachometer Harness (1 Wire 2 Pin Connector), 3 ft Power & Lighting Harness

HOW TO USE:

1. Mount the Gauge: Locate a suitable 2 5/8 inch (68mm) opening in your dashboard or gauge pod. Secure the tachometer in place using the included mounting ring.
2. Connect the Power Harness: Connect the 3 ft Power & Lighting Harness to a 12V power source (ignition switched is recommended), ground, and your vehicle’s lighting circuit (if you want the gauge to illuminate with your headlights).
3. Connect the Tachometer Signal Harness: Connect the 8 ft Tachometer Harness to a suitable tachometer signal source, typically a negative (-) terminal of the ignition coil or a designated tachometer output from your vehicle’s ECU (refer to your vehicle’s wiring diagram).
4. Ground the Tachometer: Ensure a good ground connection for both harnesses to the vehicle’s chassis.
5. Set the Shift Light (if applicable): Some models may have an adjustment mechanism (refer to the specific product manual if available) to set the desired RPM at which the shift light will activate. This is often done via a small dial or programming sequence.
6. Test the Gauge: Start your engine and observe the tachometer reading to ensure it is functioning correctly and displaying the RPM accurately. Verify that the shift light illuminates at the set RPM (if adjusted).

BENEFITS OF USING THE SPEEDHUT 2-5/8″ 4K RPM SHIFT-LIGHT TACHOMETER (R25-TC1-REV):

• Accurate RPM readings allow for better engine management, helping prevent over-revving and potential damage.
• The integrated shift light helps optimize gear changes for improved acceleration and potentially better fuel efficiency.
• Clear and easy-to-read display enhances driver awareness and control during performance or regular driving.
• Broad engine compatibility makes it suitable for various vehicles from daily drivers to performance builds.
• Installation is made easy with included wiring harnesses and mounting hardware, providing a hassle-free upgrade path.

FEATURES:

• Clear 4,000 RPM Sweep: Offers an easily readable scale for monitoring engine speed within its operational range.
• Integrated Visual Shift Indicator: Provides an immediate visual cue when the preset optimal shift point is reached.
• Broad Engine Compatibility: Designed to function correctly with engines having anywhere from one to twelve cylinders.
• Direct Spark Plug Signal Input: Specifically engineered to read signals from standard spark plug ignition systems.
• Industry-Standard Gauge Size: The 2 5/8 inch diameter allows for straightforward integration into many aftermarket gauge setups.
• Included Wiring Solutions: Comes with dedicated harnesses for both signal input and power/lighting connections.
• Secure Mounting System: The provided mounting ring ensures the gauge is firmly held in place.