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Autronica SM4 User Manual

Autronica SM4
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SM4 Manual by MRM-Racing V3.0
67
Engine Cycles:
Options - 4 Stroke or 2 stroke engine.
Overall fuel calibration Multiplier:
OVERALL FUEL MULT = 8.112 * D / I
D = Cylinder volume (in c.c)
I = Injector flow rate(in c.c/minute) @ operating pressure.
This value is used to get the numbers in the main fuel table within the 0 to
200 range. e.g:- If this value is too small you may need numbers bigger
then 200 in the fuel table. This value is only for this purpose and can be
changed from the calculated value on startup to get the engine running,
rather than changing the main fuel table numbers.
Comp Ratio:
Compression ratio of the engine.
Clear Flood TPS:
Clear flooding throttle limit.
Amount of throttle opening required beyond which no fuel is injected during
cranking. Default=90.0
Stoic A/F Ratio:
Stoichiometric air fuel ratio.
The exact air-fuel ratio to completely combust a fuel. Used by CLC (Closed Loop
Control) Default=Petrol engines 14.7.
Ignition Setup
Ignition Ouputs:
When creating custom firing order/angles, start with the closest type from list
and then modify in advanced. For firing order changes, modify "Start at
Event" in advanced mode only.
NOTE: See "I/P Analogs, I/P Baro". When manifold sensor not connected
to the manifold OR you have a seperate baro sensor, set "Baro update" to
"Sensor" else use the "Baro press estimate".
NOTE: If changed the fuel pressure then can compensate this number by
multiplying by Square_Root(Last_fuel_press/New_fuel_press)

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Autronica SM4 Specifications

General IconGeneral
BrandAutronica
ModelSM4
CategoryControl Unit
LanguageEnglish