Description
The Speedhut 2-5/8″ Boost/Vac Gauge 30inhg-0-30 PSI (R25-BV4-DATZ) is a critical tool for accurately monitoring your vehicle’s forced induction system. Offering precise real-time readings of both vacuum and boost pressure, this gauge allows you to fine-tune your engine for optimal performance. With a user-configurable warning light and easy installation, it’s a go-to solution for diagnosing issues, safeguarding engine health, and maximizing efficiency. Designed to match the Datsun Z interior aesthetic, it brings both form and function to your dashboard.
KEY FEATURES AND BENEFITS:
- Dual function: Simultaneously measures vacuum and boost pressure for comprehensive monitoring.
- Settable warning light: Alerts the driver when pressure readings exceed safe parameters.
- Easy installation: Includes all necessary components such as wiring harnesses, pressure sensor, and hose kit.
- Precision sensor: Uses a 3-wire military-grade transducer for accurate and reliable performance.
- JDM styling: Complements the look of classic Datsun Z series interiors.
SPECIFICATIONS:
- Gauge Type: Boost/Vacuum Gauge
- Pressure Sender Type: 3-Wire Military Grade Transducer (Performance)
- Range: 30 inHg – 0 – 30 PSI
- Size: 2 5/8 inch
- Hole Size: 2.67 inches (68mm)
- Standard or Metric: Standard
- Warning Light: Yes
- Included:
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- Pressure Gauge Wiring Harness (3-Wire Cable)
- Boost/Vac Hose Kit
- Pressure Sensor – 30 PSI
HOW TO USE:
- Mount the Gauge: Locate a suitable 2.67-inch (68mm) diameter hole and secure the gauge with the spin-lock ring.
- Connect the Pressure Sensor: Install the included 30 PSI sensor to a vacuum/boost source on the intake manifold.
- Run the Hoses: Attach the Boost/Vac Hose Kit between the sensor and the gauge, ensuring all fittings are secure.
- Connect the Wiring Harnesses:
- Attach the 3-Wire Pressure Gauge Wiring Harness between the sensor and the gauge terminals.
- Connect the 3 ft Power & Lighting Harness to a 12V switched power source and ground, then to the gauge for power and backlighting.
- Set the Warning Light (Optional): Use the gauge settings to define the boost/vacuum threshold for the warning light.
- Monitor Readings: Start your engine and verify the gauge provides accurate vacuum and boost data during operation.
BENEFITS OF USING THE SPEEDHUT 2-5/8″ BOOST/VAC GAUGE 30INHG-0-30 PSI (R25-BV4-DATZ):
- Allows precise monitoring of your vehicle’s intake pressures, ensuring optimal performance and reliability.
- Helps detect issues such as boost leaks, vacuum leaks, or over-boosting conditions promptly.
- Enables safe operation of turbocharged engines with visual alerts via the warning light.
- Ideal for performance tuning and daily driving confidence.
- Designed to seamlessly match the dashboard aesthetics of Datsun Z series vehicles.
FEATURES:
- Displays both vacuum and boost pressure in real-time.
- Equipped with a precise 3-wire military-grade transducer.
- Includes an adjustable warning light for pressure alerts.
- Styled to enhance the look of classic JDM Datsun Z dashboards.
- Spin-lock mounting system for simple dashboard installation.
- Includes all required components: wiring, hose kit, and sensor.
- Constructed with weather-resistant materials for durability.






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