Description
Control board (1 per ECU)
Variable Number Details Analogue 0-5V inputs 11 Each is 0 – 5.5V, 55k input impedance
- 2 x TPS / pedal position
- 6 x pressure – Oil, Fuel, Internal intake MAP, internal exhaust MAP, external intake MAP, external exhaust MAP
- 3 x spare for servo feedback / external inputs
Analogue oxygen sensor inputs 2 Each can be either:
- 0 – 5.5V, 55k input impedance
- 0- 3.3V, 1M input impedance
Temperature inputs 4 Each is 0 – 5.5V, 55k input impedance to ground Each can be:
- Non-biased, eg in piggyback mode. Calibration is in mV
- Biased, calibration is in Ohms. 3 internal pull-ups, 1k5, 2k2, 4k7, automatically selected by the ECU
Manifold air temperature, coolant temperature, oil temperature, fuel temperature
Crank trigger inputs 3
- Selectable 2k2 pullup (on in digital mode, off in reluctor mode)
- Variable voltage trigger threshold from 0 to 65V – either arm input for reluctor or threshold for digital input
- AC coupled zero crossing trigger in reluctor mode
- Variable filtering 1 to 192 µs
- See built-in scope section
Vehicle speed input 1
- Selectable 2k2 pullup
- Variable voltage trigger threshold from 0 to 65V
- Variable filtering 1 to 192 µs
- See built-in scope section
Sensor power and ground
- 5V regulated output for sensors, max 100 mA, current limited (voltage is monitored by ECU)
- Sensor ground connected to ground inside ECU under firmware control to detect external ground loops in the wiring (voltage is monitored by ECU)
Knock inputs 1
- 50 k input impedance
- Sampled at 80 kHz (12-bit resolution, 3.3V peak to peak max voltage),
- Variable second order highpass and lowpass filters
- Selectable start and end of sampling windows (in crank angle)
Wired Outputs 2
- Dedicated outputs for tacho and EFI relay
- Tacho output has inductor to generate back-EMF spike for impulse tachometers.
- EFI relay output can be configured as fuel pump or EFI relay. Switches to ground, current limited to 600 mA
Headphone output 1 Mono output, can be selected as direct knock input or filtered knock input Power sources 3 ECU can be powered by 12V EFI input, ignition switch, or USB (USB for settings / firmware upgrades / log retrieval only; 12V must be applied to read inputs) CAN channels 2
- Up to 1 Mbps
- Internal 120 Ohm terminating resistor can be turned on and off with ECU setting on each channel
USB connection 1
- Standard USB mini AB connector.
- 12 Mbps max speed
- USB appears as mass storage device (USB stick); no drivers are necessary
- Software installer included on mass storage device
Serial connections 4
- All 4 use 4-pin Molex connectors
- 2 x serial in (ground, transmit, receive)
- 1 x serial out (ground, transmit, receive)
- 1 x controller out (ground, transmit, receive and 12V switched, current limited power) – eg for dash, hand controller
Wireless connection 1
- Access point
- 230kbps max speed
- Settings and live data only (no log retrieval due to speed)
Inbuilt sensors
- Microphone
- 3 axis accelerometer
- 3 axis rate gyro
Inbuilt logging 32 MB
- Max 30 hrs @ 10 Hz, 13 channels
- Min 20 mins @ 100 Hz, 125 channels
Exception (fault) detection 16 MB Separate logging memory for storing logs during “exceptions” (sensor / trigger faults etc) Built-in scope 4 channels
- Max sample rate 200 kHz (5µs sample period)
- 1000 samples per screen (min 5ms across the screen)
- Analogue trigger inputs sampled at 40 kHz
Channels include
- Analogue CAS inputs
- Peak detected CAS voltages
- CAS threshold voltages
- Filtered CAS inputs
- Analogue external inputs
- Raw and filtered knock waveforms
- Current engine angle
- Calibrated input values
- Intermediate calculation values
- Output calculated values
Main loop execution speed Variable depending on tuning mode and corrections enabled, 400 Hz nominal
Output Module (1 per ECU)
| Number of injector outputs | 8 |
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| Number of ignition outputs | 8 |
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| Number of aux outputs | 4 |
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Mini Output Module (1 or more per ECU, max 2)
| Number of aux outputs | 6 |
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