Speedhut 2-5/8″ AEM 8.5-18 Air/Fuel Wide Band Gauge (L25-WB3-LEG)

Description

The Speedhut 2-5/8″ AEM 8.5-18 Air/Fuel Wide Band Gauge (L25-WB3-LEG) is a dedicated display unit designed to provide accurate and real-time monitoring of your engine’s air-to-fuel ratio. This gauge interfaces seamlessly with an external AEM Inline wideband controller (not included) to deliver precise readings essential for performance tuning and engine diagnostics. Its clear 2 5/8″ display allows for easy observation of AFR values ranging from 8.5 (rich) to 18 (lean). Installation is straightforward, requiring a 2.67″ (68mm) mounting hole. The gauge features LED illumination for enhanced visibility. Included with the gauge are the necessary wiring harnesses for power, lighting, and tachometer signal (for LED lighting). Please note that this gauge does not have a built-in warning light; users must rely on the digital readout for AFR monitoring. The gauge operates on an input signal of 0.5 volts to 4.5 volts, which corresponds to the 8.5-18 AFR range outputted by the AEM Inline controller.

KEY FEATURES AND BENEFITS:

• Accurate AFR Monitoring: Provides precise air/fuel ratio readings from 8.5 to 18, crucial for optimizing engine performance and efficiency.
• AEM Inline Compatibility: Specifically designed to work with AEM Inline wideband controllers, ensuring seamless integration and reliable data.
• Clear Visual Display: The 2 5/8″ gauge offers an easy-to-read digital display of the current air/fuel ratio.
• LED Illumination: Features LED lighting for excellent visibility under various lighting conditions.
• Easy Installation: Designed for mounting in a standard 2.67″ (68mm) gauge opening.
• Included Wiring Harnesses: Comes with the necessary harnesses for power, lighting, and tachometer signal (for LED lighting), simplifying the wiring process.

SPECIFICATIONS:

• Gauge Type: Air/Fuel Gauge
• Gauge Subtype: Air/Fuel Wideband Gauge
• Controller Compatibility: AEM Inline
• Range: 8.5 – 18 AFR
• Size: 2 5/8 inch
• Hole Size: 2.67 inches (68mm)
• Warning Light: No
• Input Signal: 0.5 volts to 4.5 volts
• 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

HOW TO USE:

1. Mount the Gauge: Locate a suitable 2.67″ (68mm) opening in your vehicle’s dashboard or instrument panel and securely mount the Speedhut gauge.
2. Connect the Power and Lighting Harness: Connect the 3 ft Power & Lighting Harness to a suitable 12V power source and ground in your vehicle. This harness will power the gauge’s operation and LED illumination.
3. Connect the Tachometer Harness (for LED): Connect the 8 ft Tachometer Harness to a suitable tachometer signal source if you wish the LED lighting to react to engine RPM (this is optional and solely for visual effect).
4. Interface with AEM Inline Controller: Ensure your AEM Inline wideband controller is properly installed with its wideband oxygen sensor in the exhaust system. Connect the analog output signal from the AEM Inline controller (which outputs 0.5V-4.5V corresponding to 8.5-18 AFR) to the input of the Speedhut gauge. Refer to the wiring diagrams for both the Speedhut gauge and the AEM Inline controller for correct connections.
5. Verify Operation: Once all connections are made, start your vehicle and confirm that the gauge powers on and displays the air/fuel ratio readings from the AEM Inline controller.

BENEFITS OF USING THE SPEEDHUT 2-5/8″ AEM 8.5-18 AIR/FUEL WIDE BAND GAUGE (L25-WB3-LEG):

• Performance Tuning: By monitoring the air/fuel ratio, you can make precise adjustments to your engine’s fuel delivery for optimal power and torque output.
• Fuel Efficiency: Maintaining the correct air/fuel mixture can lead to improved fuel economy.
• Engine Safety: Real-time AFR monitoring allows you to identify and address potentially harmful lean or rich conditions that could damage your engine.
• Diagnostics: Observing AFR readings can help diagnose various engine-related issues.
• Compatibility: Designed specifically to work with AEM Inline controllers, ensuring reliable and accurate data display.

FEATURES:

• Dedicated display for AEM Inline wideband controllers.
• Displays a broad air/fuel ratio range from 8.5 to 18.
• Standard 2 5/8″ (66.7mm) gauge size for versatile mounting options.
• Requires a 2.67″ (68mm) diameter mounting hole.
• Operates on an input voltage range of 0.5V to 4.5V from the controller.
• Features vibrant LED backlighting for enhanced readability.
• Includes an 8 ft tachometer signal harness for optional LED lighting effects.
• Comes with a 3 ft power and main lighting harness for straightforward electrical connections.
• Provides real-time feedback on the engine’s combustion mixture.
• Contributes to informed tuning decisions and engine health monitoring.