Emtron SL4 ECU

The Emtron SL4 ECU is the perfect ecu for any 1-4 cylinder engine. Emtron SL4 ECU supports 1 – 4 channels of fully sequential Fuel and Ignition making it ideal for 4cyl engines like the K24, 4b11, 4g63, SR20, K20 and more. Every SL ECU features a durable billet aluminum enclosure with 32MB permanent memory built in for on-board logging. Some of our favorite functions for the SL series ECU are the: 4-channel oscilloscope function, DBW control, Knock control using digital filter technology, high speed Ethernet communications and 3-axis G-force sensing.

Emtron General Information:

• Power Supply:
  • Operating Voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V)
  • Operating Current: 290mA at 14.0V (excluding sensor and load currents)
  • Reverse Battery Protection via External Fuse
  • “Smart” battery transient protection
• Operating Temperature
  • Max operating range: -30 to 110°C (-22 to 230°F)
  • Recommended operating range: -30 to 85°C (-22 to 185°F)
• Physical Stats
  • Aluminum 6061 grade CNC billet enclosure
  • Enclosure size 120 mm x 130 mm x 27 mm
  • Weight: 470g
  • Connector system: 68-way Super Seal waterproof connectors with gold plated contacts
  • Pin diameter: 1 mm
  • Current rating: maximum 15A per pin (wire gauge dependent)
  • Connector A: 34 pin Key 2 Super Seal
  • Connector B: 34 pin Key 1 Super Seal
• Internal
  • Dual 100MHz processors
  • 500Mb DDR RAM (0.5Gb)
  • 32MB ECU logging memory. Over 1200 channels available, 1Hz to 500Hz logging rate
  • Oscilloscope 4-channel function with 32MB storage
    • Sampling at 100k samples/second
    • Includes Crank Index and Sync sensor inputs
    • Includes Digital Inputs 1-4
  • On-Board barometric pressure sensor. Range 40 – 115.0 kPa
  • 3-Axis accelerometer. 16-Bit resolution, +2g/+4g/+8g dynamically selectable full-scale

Outputs:

• 4x Port Injector Outputs—high ohm
  • 70V clamping
  • Outputs can be used for ground switching, 6A Continuous, 10A Limit
  • All outputs are short circuit and over current protected
  • No Flywheel diodes (external diode(s) required for VVT control)
• 4x Ignition Outputs
  • Adjustable TTL Ignition drive current (35mA or 70mA)
  • Outputs can be used for ground switching, 1A Continuous, 3A Limit
  • All outputs are short circuit and over current protected
  • No Flywheel diodes (external diode(s) required for VVT control)
• 10x Auxiliary Outputs
  • Variable Valve Timing (VVT) and Variable Valve Timing Electric (VTiE), Drive by Wire (DBW), dual boost control, gearshift solenoids, stepper motor and many more.
  • All outputs have PWM control, maximum frequency = 15 kHz
  • Flywheel diodes integrated into all outputs
  • All outputs are short circuit and over current protected.
  • Low Side Driver Auxiliary 1-4: 4A continuous, 6A peak modulated, 8A limit
  • Low Side Driver Auxiliary 5-8: 2.5A continuous, 4A peak modulated, 5A limit
  • High Side Driver Auxiliary 1-8: High Side 4A continuous, 9A limit
  • Half Bridge Driver Auxiliary 9-10: 5A continuous and 8A limit. Can be used as Low Side, High Side or together in H-bridge configuration for DC motor control (DBW)
• 1x EFI Relay Output
  • Low Side Driver for relay control. Current limited to 200mA
• 1x Shield Output
  • Connection for Trigger and Knock shielded cables. Short to battery protection

Inputs:

• 10x Analog Voltage/Temperature Inputs
  • Fully configurable including custom calibrations
  • Switchable 1k ohm pull-up resistors on ANV 7-10 for temperature inputs (available on 4 channels)
  • Accepts a 0.0 – 5.0V analog input. Resolution is 1.22mV (12-Bit)
• 6x Digital/Speed Inputs/Switched Inputs
  • Frequency range from 0.0Hz up the 30.0kHz on all 6 channels
  • Magnetic and Hall effect sensor compatible on DI 1-4 with programable trigger edge(s)
  • Hall effect sensor only on DI 5-6 with programable trigger edge(s)
  • Independent programable frequency-based arming threshold control, range 0.0 – 12.0V on DI 1-4
  • Fixed frequency-based arming thresholds on DI 5-6. Rising = 1.2V, Falling = 1.0V.
  • Wheel speed, output shaft speed and other frequency-based signals
  • VVT position(s) up to 4 channels available on DI 1- 4.
  • ON/OFF switched inputs: AC request, Launch enable, cruise switch, table control switching etc with arming threshold control, range 0.0 -20.0V
  • Accepts a 0.0 – 20.0V analog input. Resolution is 4.88mV (10-Bit)
  • Switchable 4k7 ohm pull-up resistors on all 6 channels to 10V
• 2x Knock Inputs with configurable Frequency and Gain.
  • Using Bosch digital knock integrated circuit technology
  • Selectable center frequency from 500Hz – 25kHz
  • Selectable bandwidth from 100Hz – 5kHz
  • Selectable digital filter window; Hamming or Blackman
• 1x Dedicated Ignition Switch Input
  • 0 – 20.0V input used for EFI Relay Control. (With input > 4V the EFI Relay output (D9) will switch ON)
• 2x Crank Index and Sync Engine Decoding Inputs
  • Magnetic and Hall effect sensor compatible with programable trigger edge(s)
  • “True” zero crossing detection on magnetic signals for precise engine position decoding.
  • Programmable independent arming threshold control from 0.1V to 12.0V
  • Switchable 4k7 ohm pull-up resistor to 5V
  • OEM patterns supported

Voltages and Grounds:

• 1x ECU Supply Input
  • 15.0A Max (pin limited)
  • 6V – 22.0V Range
  • Supplies ECU power
  • Supplies power to Auxiliary 1-8 High Side Drivers
• 1x Auxiliary 9-10 Supply Input
  • 15.0A Max (pin limited)
  • Power supply for Auxiliary channels 9 -10.
• 1x 5.0V Sensor Supply
  • 5.0V Vref1 output current 250mA
• 1x 8.0V Sensor Supply
  • Output current 400mA
• 2x ECU Main Grounds
  • 15.0A per pin, total 30A
• 1x Sensor 0V Reference
  • Analog Sensor 0V Reference with short to battery protection

Communication:

• 1x high speed Ethernet 100Mbps
• 1x CAN 2.0B 1Mbps/ 6 Channels per node, total 64 messages

Software:

• Emtron’s comprehensive Emtune tuning software is used to connect to the ECU.
  • Microsoft Windows  7 -10 compatible
  • Free License
  • Memory requirements: 0.5GB RAM
  • ECU connection using Ethernet, IPV4 protocol
  • Tuning and data analysis
  • PC and ECU data logging
  • Live pause and data playback
  • Advanced tuning functions
  • Diagnostics
  • Oscilloscope display

All of our Emtron ECU packages are packed with engine protection strategies to keep your engine safe under any condition. With close loop injector flow calculation based off fuel temperature and injectors differential pressure the Emtron ECU is able to deliver SUPER accurate injector control resulting in unmatched performance. Combine this with closed loop fuel, knock control, boost control and flex fuel the Emtron is hard to beat! Emtron also offers Plug and Play applications for a few very popular cars, like seen below, and we at Brewed offer patch harnesses for all most anything else!

Please note: All ECU packages, tuning and E-tuning are for off road motorsports use only! Please check you locals laws and regulations before modifying any vehicle.