FT500 SFI / FT500LITE SFI
66
Other functions
19.3 Deceleration cut-off
This function cuts-off fuel every time the throttle is not being pressed
and the engine is above the chosen RPM.
A standard RPM of 2000rpm is recommended. Setting a very low
RPM may cause the engine to turn off involuntarily during deceleration
The “Cut-off Delay for TPS=0%” parameter is the time (in seconds)
delay before fuel is actually cut-off after releasing the throttle. Such
delay exists to avoid the engine to instantly become lean when the
throttle is released. It also rapidly cools the combustion chamber
without being excessive, and avoids situations in which the cut-off
might oscillate, especially when the throttle is lightly pressed. A
standard delay of 0.5s is suggested.
Cut delay
Deceleration cut-off
Cut when
=0
TPS
and above:
0,5
s
2500
RPM
Disabled
Enabled
19.4 Revolution limiter
This function is very important for engine protection, limiting the RPM
with two different options of cut-off:
Fuel Injection:
the fuel injection is cut-off instantly, as the ignition is
still operating. It is a very smooth and clean cut-off. Recommended
only for naturally aspirated engines, it is the standard setting in vehicles
with original injection systems.
Ignition:
the engine ignition is cut-off when the configured RPM
is reached. It is recommended for high-power engines, especially
turbocharged ones, being the most efficient and safe option.
Disabled
Enabled
Revolution limiter
Fuel injection
Ignition
Rev limiter
7000
RPM
19.5 Shift Light
When the engine reaches the RPM set in this parameter, the screen
will display a blinking message (“SHIFT”) indicating that gear must
be shifted.
To switch an external shift light, it is necessary to configure an auxiliary
output at the “Input and Output Setup” menu. If no auxiliary output has
been configured as Shift Light, the message “Output not configured!”
will be displayed. Even so, it is possible to set the Shift Light RPM
on the screen
Shift light 1/3
None
Blue 5: Avaliable
Blue 6: Avaliable
Blue 7: Avaliable
Output selection
Test output:
Test
Disabled
Enabled
Shift light 2/3
Single value
Each gear
RPM settings
Output options
Dashboard
Output pin
Shift light 3/3
Turn on shift light
with RPM above
8000
RPM
19.6 Cooling fans 1 and 2
This FT500 / FT500LITE can control up to two cooling fans on different
temperatures.
There’s an option that allows one of the fans to be activated when
A/C is turned on. As these fans may draw considerable load, a fuel
compensation is also available.
To test the fan output, just click on the “Test output” button. If it doesn’t
work, check the install or test another output.
Through FTManager, the output configuration is done in the “Sensors
and calibration” menu - Outputs.
