Lowdoller Motorsports | 2 Bar MAP Sensor (Reads - 14.7 PSI to +14.7 PSI) PN: 899002

Lowdoller Motorsports 2 Bar MAP Sensor – -14.7 PSI to +14.7 PSI

Part Number: 899002

Accurately monitor manifold pressure, vacuum or crankcase pressure with the Lowdoller Motorsports 2 Bar MAP Sensor, designed for naturally aspirated, nitrous-assisted and motorsport data-acquisition applications.

With a measurement range from -14.7 PSI to +14.7 PSI, this sensor is ideal for combinations that require accurate vacuum and low-boost pressure data rather than the extended range of a conventional high-boost MAP sensor. It is also particularly useful for monitoring crankcase pressure and vacuum on engines fitted with vacuum-pump or pan-vac systems.

The sensor provides a standard 0.5V to 4.5V analogue output, making it compatible with a wide range of EFI systems, digital dashes and data loggers. Its heavy-duty stainless-steel body and 1/8" NPT thread provide a durable and straightforward installation in demanding race environments.

Features & Benefits

• 2 Bar MAP sensor
• Measures from -14.7 PSI vacuum to +14.7 PSI pressure
• Ideal for naturally aspirated and nitrous-assisted engines
• Excellent for crankcase pressure and vacuum monitoring
• Suitable for vacuum-pump and pan-vac applications
• Standard 0.5V to 4.5V analogue output
• Compatible with EFI and data-logging systems
• Heavy-duty stainless-steel body
• Compact 1/8" NPT threaded connection
• Suitable for demanding motorsport environments
• Allows accurate monitoring of both vacuum and positive pressure
• Supplied with GT150 connector components

Technical Specifications

• Product Type: MAP / Pressure Sensor
• Brand: Lowdoller Motorsports
• Part Number: 899002
• Pressure Range: -14.7 PSI to +14.7 PSI
• Sensor Rating: 2 Bar
• Signal Output: 0.5V to 4.5V
• Pressure Connection: 1/8" NPT
• Body Material: Stainless Steel
• Application: Universal Motorsport Pressure & Vacuum Monitoring

What’s Included

• 1 × Lowdoller Motorsports 2 Bar MAP sensor
• 1 × GT150 Packard connector
• Connector pins
• Connector grommets

Note: Pre-wired cable is sold separately.

Applications

• Naturally aspirated performance engines
• Nitrous-assisted engine combinations
• Intake manifold pressure monitoring
• Engine vacuum monitoring
• Crankcase pressure monitoring
• Crankcase vacuum monitoring
• Vacuum-pump systems
• Pan-vac systems
• EFI installations
• Digital dash systems
• Race-car data acquisition

Ideal for Crankcase Pressure Monitoring

Crankcase pressure is an important but often overlooked data channel in a performance engine.

Monitoring crankcase pressure can help identify issues with ring seal, excessive blow-by, vacuum-pump performance and crankcase ventilation. On engines using a vacuum pump, this sensor allows both vacuum and positive crankcase pressure to be recorded throughout a run.

The -14.7 to +14.7 PSI range provides excellent resolution around atmospheric pressure, making it particularly well suited to this type of monitoring. Lowdoller specifically lists crankcase pressure sensing with a vacuum pump as one of the sensor’s intended uses.

EFI & Data-Logger Compatibility

The sensor’s standard 0.5V to 4.5V output allows integration with compatible analogue inputs on most motorsport electronics systems. Lowdoller states the sensor is compatible with EFI and data-logging systems.

Typical installations may include:

• Haltech
• FuelTech
• Holley EFI
• Racepak
• Motec
• Link ECU
• ECU Master
• Other compatible EFI, dash and data-acquisition systems

The receiving system must be configured with the correct -14.7 PSI to +14.7 PSI calibration to provide accurate readings.

Important Installation Notes

The sensor uses a 1/8" NPT pressure connection and should be installed into a suitable pressure port, sensor manifold or remote-mounted line.

For crankcase monitoring, position the pressure pickup where it accurately represents crankcase conditions while protecting the sensor from excessive oil contamination and vibration.

Always configure the ECU or data logger with the correct sensor calibration before relying on recorded pressure data.

Why Choose Lowdoller Motorsports Sensors?

Lowdoller Motorsports produces practical data-acquisition products specifically for racers who want reliable information without unnecessary complexity.

Their pressure, temperature and position sensors provide motorsport-friendly outputs and mounting options, making it easier to add meaningful data channels to an existing EFI or logging system.

Why Buy From Prime Speedworks

Prime Speedworks supplies Lowdoller Motorsports sensors, brackets, wiring and data-acquisition components to racers, performance workshops and race teams throughout Australia.

Whether you're monitoring manifold pressure, crankcase vacuum, transmission pressure or complete vehicle data, Prime Speedworks can help match the appropriate Lowdoller sensors and supporting components to your ECU or data-logging system.