Haltech E6X Manual Win Version - Manual (Page 148)

E6X Manual
148
For Example a 4-cylinder engine with a 24-tooth wheel on the cam and a corresponding home
would have the following setup values:
Trigger Angle: 65° (10° to 100° as required)
Trigger Type: Multi-tooth
Total Teeth: 24
Tooth Offset: 2 (1 to Total Teeth)
With these set-up values, when the home signal occurs the ECU will start counting the trigger
teeth (24-tooth wheel), when it reaches the tooth offset it will operate as a standard trigger.
The position of the remaining triggers is determined by taking the number of teeth in the
trigger wheel (24) divided by the number of cylinders (4). This number (6) is the number of
teeth that is counted between triggers.
In this case the triggers will occur at the following teeth: 2,8,14,20. Each trigger occurs 65°
(Trigger Angle) BTDC of the current cylinder and will perform ignition based on this angle.
Due to the high frequency of multi-tooth signals the maximum Rpm to which the ECU will
operate is 10,500 rpm. This rpm value is based on the above-mentioned 24-tooth trigger.
Trigger Setup page configuration for Multitooth trigger wheel
Trigger
Angle
Setting
Set to
Motronic
Tooth
Offset
Setting
Teeth
Number
Setting
(Full engine cycle)