Is This The Fastest 86 In The World?

Blake Jones, The Speedhunters

“This car is really amazing now”

Beau “The Show” Yates, Drift Australia Champion

“This is the best the car has ever been by a long way”

Nik “The Spartan” Kalis, NSW Time Attack Champion

SL4

Emtron’s SL4 is a wire in ECU with extreme flexibility. This ECU will support  4 Channels of fuel and 4 Channels fully sequential Ignition.  Every SL4 is housed in a durable billet Aluminium enclosure and includes up to 16Mb permanent memory for on board logging and oscilloscope function, DBW control, digital Knock control, Ethernet communications to name a few.

ECU Pinout Scheme:

Specifications:

1.0 General

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

Operating Temperature

  • ECU Internal Temperature
    • Max Operating Range: -30 to 110°C (-22 to 230°F)
    • Recommended Operating Range: -30 to 85°C (-22 to 185°F)

Physical

  • 6061 grade aluminum 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
    • 1 x 34 pin Key 1 Super Seal
    • 1 x 34 pin Key 2 Super Seal

Internal

  • Dual 100MHz Processors
  • 500Mb DDR RAM (0.5Gb)
  • 16MB ECU logging Memory
    • Over 700 channels available
    • 1Hz to 500Hz logging rate
  • 4 channel Oscilloscope function
    • Sampling at 500k samples/second
    • Includes Crank and Cam sensors inputs
    • Includes Digital Inputs 1-2
  • On-Board Barometric Pressure Sensor.
    • Range 40 – 115.0 kPa
  • 3-Axis Accelerometer
    • 16 Bit Resolution
    • +2g/+4g/+8g dynamically selectable full-scale
    • Output Data Rate 500Hz
2.0 Outputs

4x 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

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

10 x Auxiliary Outputs

  • Variable Valve Timing, Drive by Wire, Boost control, Stepper motor and many more.
  • All Outputs have PWM Control, maximum frequency = 15 kHz
  • All Outputs are short circuit and over current protected
    • Low Side Drivers:
    • Auxiliary 1-4: Low Side 4A continuous, 6A peak modulated, 8A Limit
    • Auxiliary 5-8: Low Side 2.5A Continuous, 4A peak modulated , 5A Limit
    • High Side Drivers:
    • Auxiliary 1-8: High Side 4A Continuous, 9A Limit
    • Half Bridge Drivers
    • Auxiliary 9-10: Half Bridge 5A Continuous and 8A limit. Can be used as Low Side, High side or together for DC motor control (DBW)

1x Dedicated EFI Main Relay Output

  • Provides a relay ground. 100mA Limit

1x Analog Output

  • Voltage range 0 – 5.0V, Output current 100mA
3.0 Inputs

10x Analog voltage/temperature Inputs

  • Fully configurable including custom calibrations
  • Switchable pull-up resistors on ANV 7-10.
  • Resolution is 1.22mV (12 Bit).

6x Digital/speed/Switched Inputs.

  • Frequency range from 0.0Hz up the 30kHz.
  • Wheel speed, VVT position and other frequency based signals.
  • On/Off switched inputs; air-con request, table control switching
  • Accepts a 0.0 – 20.0V analog input.
  • Switchable pull-up resistors on all 6 channels.

1x Knock Inputs with configurable Frequency and Gain.

  • Using Bosch, Digital Knock Integrated Circuit Technology
  • Selectable Frequency from 500Hz – 25kHz
  • Selectable Bandwidth from 100Hz – 5kHz

1x Dedicated Ignition Switch Input

  • 6.0 – 20.0V input used for EFI Relay Control.
4.0 Voltage Supplies

1x ECU Supply Input

  • 6V – 22.0V Range
  • Supplies ECU power
  • Supplies Aux 1-8 High Side Drivers

1x Auxiliary 9-10 Supply Input

  • Power Supply for Auxiliary Channels 9 -10. (See SL Series Power Distribution Wiring – A18.pdf for more information on how this should be wired)

1x 5.0V Supply Outputs

  • 5V Engine 250mA

1x 8.0V CAS Output

  • Output Current 400mA
5.0 Communications
  • 1x Ethernet 100Mbps
  • 1x CAN 2.0B 1Mbps/ 6 Channels per node