Speedhut 2-5/8″ Spartan 10-20 Air/Fuel Gauge w/ Warning (R25-WB4-REV)

The Speedhut 2-5/8″ Spartan 10-20 Air/Fuel Gauge w/ Warning (R25-WB4-REV) provides precise monitoring of your engine’s air-to-fuel ratio. This crucial information allows for accurate tuning and performance optimization, helping to ensure your engine operates within safe and efficient parameters. Designed for compatibility with the Spartan Lambda Controller, this gauge offers a clear and reliable display of your engine’s fuel mixture across a wide 10-20 AFR range. The integrated warning light provides an immediate visual alert if the air/fuel ratio deviates from a user-defined safe zone, helping to prevent potential engine damage. With its standard 2 5/8 inch size (68mm mounting hole), this gauge is a versatile addition to any performance monitoring setup.

KEY FEATURES AND BENEFITS:

• Accurate Wideband Measurement: Provides precise air/fuel ratio readings across a wide 10-20 range, essential for optimal engine tuning.
• Spartan Lambda Controller Compatibility: Specifically engineered to work seamlessly with the Spartan Lambda Controller for reliable data acquisition.
• Integrated Warning System: Features a configurable warning light to alert the driver of potentially harmful lean or rich conditions.
• Standard Size: The 2 5/8 inch (68mm) size ensures easy integration into most gauge pods and mounting solutions.
• Metric and Standard Units: Displays readings in standard Air/Fuel Ratio (AFR) units and is also capable of displaying Lambda values.
• Easy Installation: Comes with necessary wiring harnesses for straightforward connection to power, lighting, and the Spartan Lambda Controller.

SPECIFICATIONS:

• Gauge Type: Air/Fuel Wideband Gauge
• Range: 10-20 AFR
• Size: 2 5/8 inch (68mm)
• Hole Size: 2.67 inches (68mm)
• Input Voltage: Designed for a 0-volt to 5-volt input signal from the Spartan Lambda Controller
• Warning Light: Yes
• Ships With:
• 8 ft Tachometer Harness – for LED Lit Gauges (1 Wire 2 Pin Connector)
• 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
• AF/WB Throttle Position Harness (LED Lite Gauges)

HOW TO USE:

1. Mount the Gauge: Secure the 2-5/8″ Spartan Air/Fuel Wideband Gauge in a suitable location using the appropriate gauge pod or mounting solution, ensuring the 2.67-inch (68mm) hole size is accommodated.
2. Connect the Power and Lighting Harness: Attach the 3 ft Power & Lighting Harness to a suitable power source (typically 12V switched) and ground in your vehicle’s electrical system. Connect the lighting wires to your preferred illumination circuit.
3. Connect to the Spartan Lambda Controller: Use the 8 ft Tachometer Harness to connect the signal output from your Spartan Lambda Controller to the input terminals on the back of the Speedhut gauge. Ensure proper wiring according to the gauge’s wiring diagram and the Spartan Lambda Controller’s instructions.
4. Connect the Warning Light (Optional): If desired, connect the warning light output wire to an external indicator or utilize the integrated warning light on the gauge itself by configuring the warning threshold according to the gauge’s instructions.
5. Connect the Throttle Position Harness (If Applicable): The AF/WB Throttle Position Harness may be used for future expansion or specific applications with compatible devices. Refer to additional documentation for its specific use.
6. Calibrate (If Necessary): Some wideband systems may require calibration. Refer to the instructions for your Spartan Lambda Controller and the Speedhut gauge to perform any necessary calibration procedures.
7. Monitor Readings: Once properly installed and connected, the gauge will display the real-time air/fuel ratio of your engine. Observe these readings during various driving conditions to understand your engine’s performance.
8. Set Warning Threshold: If using the warning light feature, consult the gauge’s instructions on how to set the desired upper and lower limits for your air/fuel ratio. The warning light will activate if the readings go outside of these set points.

BENEFITS OF USING THE SPEEDHUT 2-5/8″ SPARTAN 10-20 AIR/FUEL GAUGE W/ WARNING (R25-WB4-REV):

• Provides critical insights into your engine’s combustion process for precise tuning.
• Helps improve power, fuel efficiency, and overall engine health.
• Prevents engine damage by avoiding excessively lean or rich fuel conditions.
• Immediate alerts through an integrated warning system enable timely adjustments.
• Ensures accurate data collection when used with the Spartan Lambda Controller.
• Ideal for performance enthusiasts seeking optimal engine performance and reliability.

FEATURES:

• Real-time Air/Fuel Ratio Display: Provides instantaneous feedback on the engine’s fuel mixture.
• Wide 10-20 AFR Measurement Range: Covers the full spectrum of typical engine operating conditions.
• Specifically Calibrated for Spartan Lambda Controller Input: Ensures accurate and direct communication.
• Configurable High/Low Warning Indicator: Allows users to set custom alert thresholds for optimal engine safety.
• Backlit LED Display: Offers excellent visibility in various lighting conditions.
• Industry-Standard 2 5/8″ (68mm) Mounting Diameter: Facilitates easy integration into existing gauge setups.
• Supports Standard AFR and Lambda Readings: Provides flexibility in data interpretation.