The Emtron SL8 is a wire-in engine control unit for builds up to 8 cylinders. It carries the same I/O count as the SL6 but with 8× injector and ignition outputs, making it the natural choice for V8 builds, rotary applications, and any engine requiring more output channels. Like all SL series units, it runs the Emtune tuning platform over Ethernet and is housed in a billet aluminium enclosure.
Specifications
| Property | Value |
|---|---|
| SKU | 1912-082 |
| Cylinders | Up to 8 |
| ECU type | Wire-in |
| Processors | Dual 100 MHz |
| RAM | 500 MB DDR |
| Logging memory | 32 MB |
| Logging channels | 1200+, 1 Hz–500 Hz |
| Accelerometer | 3-axis 16-bit, ±2/4/8g selectable |
| Barometric sensor | On-board, 40–115 kPa |
| Oscilloscope | 4-channel, 32 MB storage, 100k samples/second |
| Injector outputs | 8× port injector, 6A continuous |
| Ignition outputs | 8× |
| Auxiliary outputs | 10× (PWM, max 15 kHz) |
| Analog inputs | 10× (0–5 V) |
| Digital inputs | 8× (up to 30 kHz); DI 7/8 shared with IGN 7/8 — 6× available on full 8-cyl sequential ignition |
| Knock inputs | 2× (500 Hz–25 kHz, Bosch digital IC) |
| Crank/sync inputs | 2× |
| Ethernet | 1× 100 Mbps (Emtune tuning) |
| CAN bus | 2× CAN 2.0B 1 Mbps, 6 ch/node, 128 messages |
| Operating voltage | 6.0–22.0 V DC |
| Operating temperature | −30 to 110°C max; −30 to 85°C recommended |
| Dimensions | 120 × 130 × 27 mm |
| Weight | 470 g |
| Enclosure | Billet aluminium 6061 CNC |
Engine Management Features
- Variable Valve Timing (VVT) and Variable Valve Timing Electric (VTiE)
- Drive by Wire (DBW) throttle control
- Dual boost control
- Gearshift control
- Flex fuel / ethanol content
- Launch control and traction control
- Wideband lambda via CAN (requires separate controller — see below)
Lambda Controller
The SL8 does not have a direct wideband lambda input. Use a CAN-connected controller:
- Emtron ELC1 CAN Lambda Controller — single channel
- Emtron ELC2 CAN Lambda Controller — dual channel (recommended for V8 builds)
Accessories
- Emtron SL ECU Connector Kit — mating connector set for the SL8 harness
- Ethernet RJ45 Socket, Unterminated 2 m — loom-integrated panel socket for Ethernet tuning (preferred)
- Emtron ECU Tuning Cable — Ethernet patch cable for laptop connection (alternative)
- Emtron ED7 Display — CAN-connected dash display
SL Series Comparison
| Model | Cylinders | CAN buses |
|---|---|---|
| SL4 | 4 | 1× |
| SL6 | 6 | 2× |
| SL8 | 8 | 2× |
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