Depo Racing 52mm Boost/Vacuum Gauge - WA Series
Professional boost and vacuum monitoring with integrated sensor for turbocharged and naturally aspirated applications. The Depo Racing WA5201B provides real-time boost pressure and manifold vacuum readings in both BAR and PSI, essential for tuning and diagnosing forced induction systems.
Key Features:
Japanese Stepper Motor Movement: Precision stepper motor delivers accurate, smooth needle response that tracks boost and vacuum pressure changes in real-time without lag or hesitation.
Dual Scale Display (BAR/PSI): Reads both boost pressure and vacuum on a single gauge face, allowing you to monitor manifold pressure across the complete operating range from idle vacuum through full boost.
White & Amber LED Backlighting: High-contrast white dial face with warm amber LED illumination provides excellent visibility day and night. Classic styling integrates seamlessly with both modern and vintage dashboard aesthetics.
Integrated Pressure Sensor: Complete kit includes electronic pressure sensor and all necessary wiring - no separate sensor purchase required. Plug-and-play installation simplifies setup.
Opening Ceremony & Self-Calibration: Full needle sweep on startup with automatic zero-point calibration ensures consistent accuracy regardless of altitude or atmospheric pressure changes.
Mounting Cup Included: Professional gauge pod mount allows for secure installation in standard 52mm gauge panels or custom dashboard fabrication.
Technical Specifications:
Gauge Diameter: 52mm (2 1/16")
Display Scales: BAR and PSI (dual scale)
Measurement Range: Vacuum to positive boost pressure
Display Type: Analogue with stepper motor
Face Color: White
Backlighting: White & Amber LED
Sensor: Electronic pressure transducer (included)
Power Supply: 12V DC
Included: Gauge, pressure sensor, mounting cup, wiring harness
Why Boost & Vacuum Monitoring Matters:
Turbocharged engines require constant boost monitoring to verify the turbo system is delivering commanded pressure levels and to detect boost leaks, wastegate problems, or compressor surge. Vacuum readings reveal engine health - low vacuum indicates worn rings, valve problems, or intake leaks. Combined boost/vacuum gauges provide complete manifold pressure monitoring from idle through wide-open throttle, essential for tuning, diagnostics, and performance verification.
Boost Monitoring: Verify your tune is delivering correct boost levels across the RPM range. Detect boost leaks, wastegate creep, and compressor efficiency issues before they cause expensive engine damage.
Vacuum Monitoring: Healthy engines show 18-22 inHg vacuum at idle. Lower readings indicate mechanical problems like worn piston rings, valve seal leaks, or intake manifold leaks that need attention.
Essential instrumentation for South African turbocharged builds, naturally aspirated performance engines, and engine diagnostics.

