Efi Technology R4 Ecu

The R4 ECU is a fully sequential 4 cylinder engine control system designed for 4 cylinder applications and V twin motorcycles. The enclosure is extruded 6061 aluminium that is environmentally sealed and features an Autosport 55 pin main connector.

The system is configured with 4 high impedance injector drivers and 4 direct coil drive outputs. Ignitor type coils can also be driven directly.

Main communications is via wireless Bluetooth interface or a high speed USB port. External data loggers or dash displays can be interfaced via a current loop or CAN bus output.

Features

The R4 ECU has the following features:-

• 4 Injector drivers
• 4 Ignition outputs
• Wastegate Control
• 16 Analog inputs (0-5v)
• 4 Digital inputs
• 2 Switch inputs
• Dual lambda (0-5v)
• 1 PWM outputs
• Stepper Motor (IAC)
• Airshift output
• Auxilliary output

Software

The R4 supports 3D Fuel, Spark and Phase maps with 40 rpm sites and 20 load sites all user programmable. The ECU can store 2 complete maps that can be switched on the fly. The ECU has a beacon input for recording laptimes and track mapping.

The R4 ECU hosts a full line of control strategies as standard for racing applications including: Closed loop lambda, Boost Control, Drive by Wire, Vanos Control, Pit Limiter, Traction Control, Paddle Shift, Engine Protection, Self Diagnostics and more.

Operational