FT500 SFI / FT500LITE SFI
61
Ignition tables adjust
18.4 Engine temperature compensation
This map represents a compensation on the advance or retard angle
applied to the main RPM map based on engine temperature variation.
It is a very important feature and it brings significant improvement on
drivability, especially while operating cold engines, when advanced
ignition timing is necessary in order to have a correct response from
the engine. It is also essential for engine protection, as it retards the
ignition timing when the engine reaches high temperatures.
Engine temp. compensation
-10 °C
+3,0
º
18.5 Intake air temperature compensation
This map represents a timing compensation applied to the main RPM
timing map based on intake air temperature variation.
Intake Air Temp. compensation
-10 °C
5,0
º
18.6 Rotary timing split
This menu is only shown when controlling Rotary engines. This is the
timing split between Leading and Trailing spark plugs.
Rotary timing split
4000
RPM
3000
0,00
°
+
-
+15,5
+30,0
+29,9
-0,30
bar
-0,70
4250
-0,1
-29,9
-30,0
-15,5
+0,1
0,0
18.7 Individual cylinder trim
Set a timing compensation to each ignition output on a table that
relates engine RPM with individual cylinder trim compensation. The
timing compensation is done individualy to each cylinder according
to the engine RPM and it comes from the flow differences, heating
dissipation capacity or even cylinder position.
Individual cylinder trim
4000
RPM
3000
3
°
+
-
+15,5
+30,0
+29,9
2
Cylinders
1
4250
-0,1
-29,9
-30,0
-15,5
+0,1
0
18.8 Rotor compensation
Available only when controlling Rotary engines, this is an individual
rotor ignition trim.
Rotary timing split
4000
RPM
3000
0,00
°
+
-
+15,5
+30,0
+29,9
-0,30
bar
-0,70
4250
-0,1
-29,9
-30,0
-15,5
+0,1
0,0
18.9 Timing limits
Configure in this menu the maximum and minimum ignition timing
limits, so the engine won’t run in any situation with too much retard
or advanced ignition timing. No other function will be able to apply
timing beyond these limits. This is a safety feature to prevent an
inappropriate timing, considering all the functions that may enable a
timing compensation (mainly drag race time based features).