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Autronic SMC is sequential
3D ECU available in three case styles, standard, sealed and water proof.
This is the biggest selling model and is
suitable for most applications.
The Autronic SMC includes harness, air and
water temp sensor, internal map sensor, fuel pump relay, PC data cable,
calibration and data logging software, 100 page manual.
The internal map sensor is available in
1bar absolute or 4.4 bar absolute (50 psi).
Available with high current (low impedance) or low current (high
impedance) injector drivers.
Harness has a connector which plugs into the Ecu, and has a socket for
fuel pump relay, and socket for data cable connection to a IBM compatible
PC or Laptop. The other end of the harness has to be connected as per the
wiring diagram .
L = 150mm (6")
W = 120mm (4 3/4")
H = 35mm (1 3/8"
Overview or Specifications below for more
- Sequential operation for 2 to 8
- 3D fuel and Ignition maps.
- User defined up to 32 RPM and 16 Load
sites = 512 sites.
- Flat Shift (ver 1.19).
- Data Logging.
- Software selectable trigger angle.
- Support for multi-tooth or missing
- Auxiliary outputs other than fuel pump
- 8 cyl engine = 1 (1 PWM output).
- 6 cyl engine = 3 (1 PWM + 2 On/Off)
- 4 cyl engine = 5(1 PWM + 4 On/Off)
- Auxiliary outputs can be defined for
boost control, nitrous oxide, camshaft
- timing, AC, fan control, idle valve
- Available with high current drivers if
- AutoTune option available.
- Optional Water Proof case for marine or
The Autronic SMC Sequential Engine Management System is a compact engine
management control for all engine performance upgrades.
A user friendly "IBM" compatible laptop
program allows the user to select the degree of sophistication required
for each application. This program, in combination with intelligence
within the management system, allows the user to select the finest
calibration detail required to match the application, in absolute minimum
This program provides the means of
interrogating the engine management system enabling speedy diagnosis and
These systems can cater for the requirements of virtually any spark
ignition engine, including the following.
i. High output supercharged or turbocharged engines, with either multi
point and/or center point injection.
ii. Rotary (Wankel) and two stroke engines.
ii. Engines having uneven firing sequences such as 2 and 4 cylinder "V"
configuration motor cycle engines and V6 motor vehicle engines.
IMPORTANT:- Please note that this product is intended for high performance
motor sport applications and compliance with statutory regulations when
used on public roads cannot be guaranteed.
1. a. Eight injector drivers for full sequential operation on engines up
to eight cylinders. May be set for 'semi-sequential' operation on engines
having more than 8 cylinders. e.g:- 12 cylinder engine using 6 groups of 2
b. All injector types catered for (0.9 ohm to 16 ohm coil resistance).
Specify unit fitted with optional high current injector drivers for 0.9
ohm or twin injector applications.
2. User choice of manifold absolute
pressure or throttle position as engine load input. Internal absolute
pressure sensor for simplified installation 0 to 200 kpa (0 to 29.4 PSI)
and 0 to 300 kpa (0 to 44.1 PSI) available from stock. 0 to 450 kpa (0 to
66.1 PSI) available on request.
3. Single coil distributor, twin coil
distributor or muilticoil distributor-less ignition configurations are
possible on most engines.
4. Fitted with environmentally sealed
connector the standard unit is splash proof. Units are available with
double environmental sealing for use in the most arduous of applications (e.g:-
rally, off-road and marine).
5. Auxiliary output function that can be
used for any of the following:
i. Closed loop (feedback), boost control for turbocharged engines with rpm
and temperature dependent calibration characteristic.
ii. Closed loop (feedback) idle speed control.
iii. Control of engine cooling fan.
iv. Programmable on/off control for solenoid or relay driving that
operates according to engine speed and load (eg:- can be used for gear
shift control or light, over rev indicator, inlet camshaft timing
selection or control of a supplementary electric fuel pump that augments
mechanical fuel pump delivery at low engine rpm only).
v. Fuel used pulse output to electric or electro-mechanical counter with
resolution of 0.1 liter (or use with trip computer).
vi. Or even more sophisticated control function such as servo control of
auxiliary butterfly for turbocharged applications requiring precise
throttle control and minimum turbo lag.
6. Exhaust oxygen sensor input for sensing
air/fuel ratio. Connect either a Bosch narrow band O2 sensor or for more
demanding applications a Bosch wide band O2 sensor and Autronic Analyzer.
The low cost narrow band sensor requires no interface adapters or
expensive air/fuel ratio meters, and offers moderate accuracy and
tolerance to leaded fuels. This function can be used to monitor air/fuel
ratio during engine tuning or can be used for feedback control of air/fuel
ratio for applications requiring exhaust catalytic conversion (feature
available on request).
7. Diagnostic/Error indicator of sensor or
ECU fault conditions with memory for detection of intermittent fault
conditions. An external light may also be connected for remote indication
of abnormal operation.
8. Precise spark advance control strategy
for both static and dynamic operating conditions.
9. Unique calibration strategy allows
accurate control of fuel delivery under both acceleration and
10. User selectable spark and fuel
delivery strategy for abnormal engine operation conditions to minimize
possibility of engine damage whilst still maintaining engine operation.. (eg:-
over heated or over boosted).
11. Comprehensive limp-home functions with
user selectable default settings that ensure engine operation can continue
after sensor failure has occurred.
12. Full compensation of engine control
parameters for engine operation at any altitude (fuel delivery, ignition
timing and boost pressure).
13. Adaptive learning (with memory) to
minimize the number of user setups required and to provide optimal control
of air/fuel ratio, boost pressure and idle stability.
14. Rev limiter with soft characteristic
that uses a combination of fuel delivery and spark control.
15. Fuel pump safety shutoff. Pump stops 3
to 4 seconds after the engine stops.
16. Unit is ultra light weight/compact yet
has sufficient drive capacity for high power continuous duty applications.
(one unit OK for all applications from motor cycle to large capacity twin
17. Optional interface unit to allow
sequential operation without the need for separate crank/camshaft sensors
or special multi-sensor distributor.
Sensors 1. Ignition input Hall effect, (Also available for direct
connection to magnetic reluctor type pick-ups).
2. No. 1 cylinder reference. (Also available for direct connection to
magnetic reluctor type pickups).
3. Barometric pressure. (Internal to ECU).
4. Manifold pressure. (Internal to ECU).
5. Throttle position.
6. Intake air temperature.
7. Engine coolant temperature.
8. Exhaust oxygen. (or optional Wide Range Air/Fuel Ratio Sensor).
9. Idle mixture trim. (Internal to ECU and screwdriver adjustable from
Main 1. 8 off injector driver. (Optional 2 injectors per driver).
2. Ignition output.
Open collector output to any of the following:
1. Single coil high energy ignitions: Bosch 7 pin, Mitsubishi 3 pin.
2. Autronic Capacitor Discharge Ignition.
3. MSD 6A etc..
(4 outputs are available allowing multi coil distrubtor-less ignition for
applications on engines up to 8 cylinders).
Auxiliary 1. Fuel pump/injector fuel shut
off safety relay.
2. Multifunction on/off or pulse width modulation output for either:
i. Engine cooling fan relay.
ii. Idle speed actuator. (Variable duty cycle single pole type, eg:-
iii. Turbocharger wastegate control valve. (SEM, most OEM types or
Autronic low or high capacity).
iv. Turbocharger auxiliary butterfly control motor.
v. General purpose duty cycle output with user define characteristic.
vi Fuel used pulse output. (for trip computer functi
1. Communications with "IBM" compatible computer for calibration, fault
| Intel 16 bit running @
| 6.2V to 23V DC
+/- 24V (5 min)
+/- 80V alternator load dump (0.5 sec).
+/- 1000V inductive spike (10 usec)
@ Engine idle
@ Max Engine Load
| < 1 Amp.
< 16 Amp (less depending on injector type and number.
| - 40 deg C.
+ 85 deg C.
|Engine Cylinder Number
Number of cylinders
| 1, 2, 3,
4, 5, 6, 7, 8, 10, 12, 14 and 16
0 to 30,000 RPM
0 to 16,000 RPM
0 to 15,000 RPM
| Engines up to 4
Engines up to 5 to 8 cylinders.
Engines 10 to 16 cylinders.
| 0.7 msec.
+/- < (10 usec + 1%)
| 0 to 720 deg (crank
+/- < (1.4 deg + 0.3 msec).
| 0 to 45 deg (crank
+/- 0.2 deg (crank angle).
0.5 deg (crank angle).
|Fuel Delivery and
No. Load sites
No. RPM sites
| 16 (max). Both
Load and RPM sites
32 (max). are freely selectable.
L * W * H
| 157 * 122 * 35 mm
180 * 128 * 35 mm (overall, including mounts & connector)
|| 0.5 kg
| 36 way 'AMP' water and
dust proof socket