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7.4 Fuel injection
Default: This mode makes available the options that are commonly used for
the majority of engines, with standard injection angles and configurations.
Custom: This mode enables all the options related to the fuel control, as
customizable injection angles, etc. When using this mode, fuel injection
configuration can only be done through a PC with FT Manager Software. It is
also possible to customize all the fuel tables and RPM positions, adding
RPM, TPS or MAP points according to the engine needs.
Fuel banks: select primary and secondary (if used) banks control mode.
Multipoint: all the outputs will fire at the same time, as a batch fire.
Semi-sequential: in this mode, injectors are fired once per engine cycle, at 0° and
360°, in pairs, according to the twin cylinders.
In a 4 cylinder engine, cylinders 1 and 4 will be fired at the same time, then
cylinders 2 and 3 at the same time.
Sequential: in this mode, each injector output fires only a single time per engine
cycle (720° on a 4 stroke). This mode is only available when a cam sync sensor is
properly set up.
total flow:
(primary or secondary). This data is used to allow edition of some fuel
tables in lb/h. I.e., four 80lb/h injectors on primary bank have a total flow
of 320lb/h (80 x 4).
Fuel type: select the fuel used on the motor. This information is used to create a better base map.
Fuel injection phase reference: select if the Fuel injection phase angle table will be based on the injectors
opening or closing. The angular distance is the measure between the ignition TDC of each cylinder and the moment the
injector should open or close.
Fuel injector opening: in this option it is only possible to know the angle the injector will open, but, its
closure will vary according to injection time and RPM, this means that, depending on these factors, the fuel injection
may still be occurring even after the intake valve has closed.
Fuel injector closing (default): This is the most commonly used option as the fuel injection always occurs
before the end of the intake cycle, no matter the injection time or RPM.
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