Linear Position Sensor – 1″ – 250mm Travel Length: Between Mounting Holes (Closed) 377mm

Extended Travel Telemetry: Linear Position Sensor (250mm)

In high-performance suspension tuning and long-travel off-road applications, monitoring the full range of mechanical movement is vital for chassis development. The Linear Position Sensor with 250mm Travel is a high-resolution instrument designed to capture extensive linear displacement. Featuring a 377mm distance between mounting holes when closed, this sensor is the definitive choice for measuring deep suspension travel in Trophy Trucks, Ultra4 racers, or high-rake LS-swap drag cars. By providing a continuous 0-5V signal to your standalone ECU integration, this sensor allows the tuner to analyze wheel position with sub-millimeter accuracy.

Engineering Principles: Linear Potentiometer Logic

This sensor operates as a precision voltage divider. As the sensor rod extends through its 250mm stroke, the internal resistive element provides a variable signal that the ECU interprets as a physical distance. This Analogue-to-Digital interface is foundational for fuel map calibration compensations that rely on ride height or aerodynamic load data. The sensor features an IP65 Ingress Protection Rating, meaning it is resistant to the dust and moisture ingress that often compromises standard automotive sensors. This durability is critical for Off-road and 26-inch tire drag builds where the under-chassis environment is hostile and vibration-rich.

Operational Benefits: Advanced Suspension Telemetry

Integrating a 250mm linear sensor with a Haltech Elite or Nexus series ECU enables the implementation of high-tier Traction Control and closed-loop boost control maps. By knowing exactly where the suspension is in its travel, the ECU can identify “unloading” events and proactively adjust power delivery to regain traction. This is essential for detonation protection through load management, as it prevents high-RPM over-revving during suspension-induced loss of grip. For the professional tuner, this sensor provides the data necessary to map the vehicle’s motion ratio and optimize damper valving for specific track surfaces.

Installation and Harness Integration

The 250mm sensor is a universal component that suits all ECUs with a spare AVI (Analogue Voltage Input). For a motorsport-grade harness integration, the sensor includes an opposing connector set. During installation, it is highly recommended to use nylon mounting bolts (not included with this SKU but recommended in the notes) to protect the sensor housing from galvanic corrosion and provide electrical isolation from chassis ground noise. The 377mm closed length must be carefully considered when fabricating mounting tabs to ensure the full 250mm travel is available without the sensor reaching its mechanical stops, which could lead to hardware damage.

Technical Specifications Table

Summary & Includes

The 250mm Linear Position Sensor is the prerequisite for long-stroke chassis telemetry. Includes: 1 x 250mm Sensor and 1 x Opposing Connector Set. Note: Mandatory use of nylon mounting bolts is recommended to ensure long-term sensor reliability and signal purity.