FT500 SFI / FT500LITE SFI
21
Engine settings
Ignition output
Ignition 3/5
Falling edge (Spark
)
PRO
Rising edge (Honda Distributor)
Rising edge (
- duty 50%)
MSD
Falling edge (SparkPRO):
Select this option when using FuelTech
SparkPRO, M&W ignition, smart coils (integrated igniter, such as GM LS
coils). This mode has dwell control enabled. It’s important to know the
dwell requirements or “charge time” of your particular ignition coil(s).
• Rising edge (MSD duty 50%):
select this option when using MSD,
Crane, Mallory or other capacitive discharge ignitions (CDI). This mode
has a fixed 50% duty cycle signal.
• Rising edge (Honda Distributor):
this option must only be selected
when using Honda distributor with stock igniter (the one that’s
integrated to the distributor). This mode has dwell control enabled.
Select this option only when using Honda OEM igniter and distributor.
Ignition cut
Ignition 4/6
Ignition cut
Maximum level
RPM progression range
90
%
200
RPM
The ignition cut maximum level is the percentage of ignition events
that will be cut to limit the engine RPM.
The RPM progression range acts like a smoothing for the ignition cut.
Example: rev limiter at 8000rpm, RPM progression range at 200rpm.
From 8000rpm the ignition cut level will gradually increase until it
reaches 90% cut at 8200rpm.
Percentages less than 90% may not keep the engine under the rev
limiter. Bigger RPM progression range tend to stabilize more smoothly
the rev limiter, but allows the RPM to pass the RPM set as rev limiter.
These numbers are valid to all kinds of ignition cut, with the exception
of time based compensations (time based RPM and driveshaft RPM/
wheel speed) and 2-step. These features have their own parameters.
7.3 Ignition
This menu sets everything related to the ignition control mode and
there is a “Default” mode (configurable through the ECU or PC) and a
“Custom” mode (configurable only through the PC). When the ignition
is set as “Disabled”, timing maps are unavailable and only the fuel
control is enabled. Gray outputs are free to be set up as injectors or
auxiliary outputs
.
Disabled
Enabled
Custom
Default
Ignition 1/5
This selection opens
all ignition setup
parameters
Default:
this mode makes available the options that are commonly
used for the majority of engines, with standard firing order tables and
configurations.
Custom:
this mode enables all the options related to the ignition
control, as customizable firing orders and angles, etc. When using
this mode, ignition configuration can only be done through a PC with
FTManager Software.
Ignition Mode
Select if the ignition will be controlled in sequential (cam sync sensor
needed) or wasted spark modes or if a distributor will be used for
that control. There is also the wasted spark mode, where the coils
work in pairs.
Ignition mode
Ignition 2/5
Single coil
Double coil
Wasted spark
Distributor
Sequential
The option “distributor” means that the spark distribution will actually
be done by a distributor, with a single coil, regardless of the number
of cylinders. Only the ignition output #1 (gray #1) will be used to
control the ignition coil, the others are disabled.
Ignition output
select the ignition output edge/mode.
