MaxxECU RACE H2O – Waterproof Professional Standalone ECU

The MaxxECU RACE H2O is a high-end, water-protected standalone engine management system (IP67) designed for professional motorsport, extreme performance builds, and applications requiring reliable operation in wet or harsh environments. Based on the MaxxECU PRO platform, it uses the powerful and user-friendly MTune software to provide advanced engine control for demanding builds.

With support for 3 to 12 cylinder 4-stroke engines, sequential injection, wasted spark setups, and extensive sensor and output capabilities, the MaxxECU RACE H2O is perfect for racing, marine, and high-performance street projects.

Core Features

• Waterprotected (IP67) for reliable operation in harsh environments
• Compatible with 3–12 cylinder 4-stroke engines
• Sequential control up to 8 cylinders (up to 12 in wasted spark)
• Built-in wideband lambda controller (Bosch LSU 4.2 or LSU 4.9)
• 2 trigger inputs (VR or digital, automatic trigger level detection)
• 2 knock sensor inputs
• 2 extra temperature sensor inputs
• 6 extra 0–5V analog inputs
• 4 extra digital inputs (VR / Hall or switches)
• 8 EGT inputs (Type-K / Type-N, up to 1200°C / 2200°F via separate harness)
• 8 peak-and-hold injector outputs
• 8 ignition outputs
• 9 low-side driving outputs for advanced functions
• 2 high-side +12V driving outputs
• 4 motor outputs for advanced control

Designed for Extreme Applications

The RACE H2O ECU is engineered for high-performance and motorsport applications where maximum reliability and control are essential. Its water-protected design makes it suitable for marine, wet track, or challenging weather environments, without compromising the advanced functionality of the MaxxECU PRO system.

Available Versions

Option 1 – MaxxECU RACE H2O (ECU Only)

Waterproof ECU unit supplied without connectors or accessories. Ideal for professional installations or custom wiring projects.

Maxx ID: 1895

Option 2 – MaxxECU RACE H2O PREMIUM (LSU 4.2)

Complete package including ECU, wiring harnesses, accessories, and a Bosch LSU 4.2 wideband lambda sensor. Perfect for professional race or extreme performance builds requiring a waterproof solution.

Maxx ID: 1897

Option 3 – MaxxECU RACE H2O PREMIUM (LSU 4.9)

Supplied with ECU, wiring harnesses, accessories, and a Bosch LSU 4.9 wideband lambda sensor. Recommended for newer engines or builds requiring LSU 4.9 compatibility in wet or extreme environments.

Maxx ID: 2252

Why Choose MaxxECU RACE H2O?

• Waterproof (IP67) standalone ECU for professional builds
• Supports engines from 3 to 12 cylinders
• Advanced sequential injection, wasted spark, and knock control
• Extensive sensor and output capability for motorsport and marine use
• High reliability in wet or challenging environments

For professional racing, marine, or extreme performance projects, the MaxxECU RACE H2O provides the ultimate combination of control, flexibility, and waterproof durability.