Speedhut 2-5/8" Boost/Vac Gauge 30inhg-0-30 PSI (R25-BV4-DATZ)
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.
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
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
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.
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.
Product identification
- Brand: Speedhut
- Model / MPN: R25-BV4-DATZ




