Haltech Nexus R5 ECU + Universal V8 Terminated Harness

Haltech Nexus R5 ECU + Universal V8 Terminated Harness

The Haltech Nexus R5 is the flagship VCU (Vehicle Control Unit) from Haltech — integrating the functionality of a power distribution module, advanced engine management system, dual-channel wideband controller, and powerful data logger into one cutting-edge device. Paired with a Universal V8 Terminated Harness, this system is designed for seamless integration with a wide variety of GM, Ford, and Chrysler V8 engines.

Nexus R5 VCU Key Features

• Power Outputs:
  • 4 x 25A (continuous) push-pull PWM outputs (5 kHz) for injectors, coils, transbrake, fans, fuel pumps
  • 12 x 8A high-side outputs (200 Hz low-speed PWM) for sensors, nitrous solenoids, etc.
  • 18 x Peak/Hold injector drivers – usable as low-side outputs
  • 12 x Low-current ignition outputs – also usable as low-side drivers
  • 8 x Low-side PWM outputs (DPOs)
  • 4 x Push-pull / H-bridge 8A PWM outputs — ideal for drive-by-wire throttle control
• Inputs & Sensors:
  • 23 x 0–5V analog inputs with redundancy and optional 5V pullup
  • Trigger and home inputs with adjustable thresholds, differential support, and glitch filters
  • 10 x Synchronous pulsed inputs — suitable for cam sensors, frequency sensors, 0–5V analog inputs
• Integrated Wideband: 2 onboard wideband controllers supporting NTK and LSU4.9 sensors
• CAN Integration: 3 x CAN bus ports with configurable termination

Universal V8 Terminated Harness

The included Terminated Engine Harness is engineered to plug directly into the Nexus R5 and supports the majority of small and big block V8 engines from GM, Ford, and Chrysler. It offers a clean and organized wiring solution, significantly reducing installation time and error.

• Harness Compatibility: Directly connects to Nexus R5
• Engine Support: GM, Ford, Chrysler V8s — both small and big block
• Note: Injection, Ignition, and Alternator Sub-Harnesses sold separately

Injector & Ignition Breakout Options

• Injector Breakouts:
  • HT-186000 – V8 Primary Injector EV1
  • HT-186001 – V8 Secondary Injector EV1
  • HT-186002 – V8 Primary Injector USCAR
  • HT-186003 – V8 Secondary Injector USCAR
• Ignition Breakouts:
  • HT-186060 – Nexus V8 GM/Chrysler IGN1A
  • HT-186061 – Nexus V8 Ford IGN1A
• Alternator Breakouts: Sold separately — model specific

Performance & Compatibility

Whether you're building a street machine, a purpose-built drag car, or a high-tech restomod, the Haltech Nexus R5 and Universal V8 Terminated Harness offers unparalleled control, flexibility, and reliability. Its modular design and powerful onboard processing capabilities set the benchmark for modern vehicle control units.