Manual

Haltech E11/E8 Instruction Manual

Settings

Cam Input Settings

• Edge - Selects if the signal triggers off the falling or rising edge. Changing edges will require a reset.

• Cam Trigger Angle - The angle between TDC and when the intake cam is at its most retarded

position.

• RPM Filter Start - The RPM at which the software filtering done by the ECU begins.

• Min Angle - When the software filtering starts any angle that the ECU sees below this value is

considered erroneous.

• Max Angle - When the software filtering starts any angle that the ECU sees above this value is

considered erroneous.

Cam Output Settings

• VCT Frequency - Frequency at which the variable cam timing solenoid runs at.

• Steady Cam Pos DC - This value is the duty cycle that will keep the cam in a fixed position. Will be

somewhere around the 50% point. This value is best set when the engine is up at operating

temperatures.

• Min Duty - The minimum duty the controller will output to the VCT solenoid. Generally 10% less

then the ‘Steady Cam Pos DC’. I.e. if the ‘Steady Cam Pos DC’ is equal to 45% then the ‘Min Duty’

will equal 35%.

• Max Duty - The maximum duty the controller will output to the VCT solenoid. Generally 10% more

then the ‘Steady Cam Pos DC’. I.e. if the ‘Steady Cam Pos DC’ is equal to 45% then the ‘Max Duty’

will equal 55%.

• Deadband - Area around the target cam angle which the controller stops controlling. E.g. target cam

angle = 10deg, deadband = 1deg, therefore if the cam angle falls between 9deg and 11deg then the

variable cam controller will ignore any changes in cam angle and considered it to be controlled.

• Min Coolant Temp - The minimum coolant temp that the variable cam timing controller will work.

Below this the output duty cycle will be zero.

• Max RPM - The maximum RPM that the variable cam timing controller will work. Above this RPM

the output duty cycle will always be zero.

• Max Cam Angle - Any value in the ‘VCT Cam Angle Map’ that goes above this will be clamped by

the output to this value.

Default Settings

Cam Input Settings:

• Edge Vehicle Dependent

• Trigger Angle Vehicle Dependent

• RPM Filter Start 3000 RPM

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