Disable

Disables any cut method from activating upon a torque reduction request.

Ignition

Ignition Outputs will be cut to limit engine torque. This is the more common method.

Injection

Injection Outputs will be cut to limit engine torque.

Axis selection and changing values

This table is intended to be used with the load (Load - Normalised Air Mass Flow) set as the first/x (left to right) axis and RPM as the second/y (bottom to top) axis, though these axes are user configurable to use any ECU channel (such as Manifold Pressure, Mass Air Flow, Throttle Position etc). Changing the axis values can be accomplished by pressing F3 when the table is selected, then either editing an existing value or adding a new value. Note that if you edit an axis site value, the overall table values will be adjusted so that the shape of the table is unchanged.

Tuning

The purpose of this table is for mapping engine torque. This is the torque that the engine could theoretically produce based on air flow alone.

This is a necessity for some Automatic Transmissions, ABS systems and Traction Control systems. In some applications, a rough estimate of these values may be required to be entered into this table before the engine tuning can begin. If the load axis is Load - Normalised Air Mass Flow, the torque map should be smooth and roughly linear. If the load axis is anything else, the map will not be linear. At low load and low engine speed there will be considerably less torque generated by the engine. The Engine Torque Table should never have a negative value in it.

The Engine Torque table should be tuned before the Retard or Cut Percentage tables. Ensure your dyno is calculating engine torque appropriately. If tuning on a chassis dyno: set wheel size; final drive ratio; and gear ratio appropriately. This table cannot be accurately road tuned.

After a rough configuration of these values, the engine can be tuned. Once engine tuning is complete, accurate values for torque can be found using a dynamometer and entered into the table.

Axis selection and changing values

This table is intended to be used with either Torque Reduction Total (Nm) or Torque Reduction Percentage as one axis, though both axes are user configurable to use any ECU channel. Changing the axis values can be accomplished by pressing F3 when the table is selected, then either editing an existing value or adding a new value. Note that if you edit an axis site value, the overall table values will be adjusted so that the shape of the table is unchanged.

Tuning

The purpose of this table is to outline the ignition timing retard applied after a torque reduction or limit request is received, in order to achieve the percentage or total reduction required. When the Transmission Control Module (TCM) or ABS unit transmits a torque reduction request for a certain percentage reduction, the ignition timing will be retarded by the amount set under that particular condition in the Ignition Correction Table. Ignition retard gives smoother engine running and is therefore recommended for smaller torque reductions.

Use the Temporary Torque Reduction or Temporary Torque Limit (outlined further below) to cause a torque reduction to take place, then tune the Retard and Cut Percentage tables so that the dyno measured engine torque is reduced by the same amount as commanded by the temporary torque reduction.

Axis selection and changing values

This table is intended to be used with either Torque Reduction Total (Nm) or Torque Reduction Percentage as one axis, though both axes are user configurable to use any ECU channel. Changing the axis values can be accomplished by pressing F3 when the table is selected, then either editing an existing value or adding a new value. Note that if you edit an axis site value, the overall table values will be adjusted so that the shape of the table is unchanged. Up to 3D mapping is available with the Table.

Tuning

The purpose of this table is to outline the Cylinder Cut Percentage applied after a torque reduction or limit request is received, in order to achieve the percentage or total reduction required. The default tuning is set such that only ignition correction is used for low torque reduction requests, and Cylinder Cut Percentage will only be used for larger requests, such as during a traction control event.

Use the Temporary Torque Reduction or Temporary Torque Limit (outlined further below) to cause a torque reduction to take place, then tune the Retard and Cut Percentage tables so that the dyno measured engine torque is reduced by the same amount as commanded by the temporary torque reduction.

Temporary Torque Reduction

Temporarily requests a torque reduction. This allows the tuner to temporarily send a torque reduction request in order to tune the Torque Reduction Retard and Cut Percentage tables. This value resets to 0.0 Nm each time the ECU is restarted. This temporary reduction is always active, and so the default value is 0 so that nothing is applied when not in use.

Temporary Torque Limit

Temporarily requests a torque limit. This allows the tuner to temporarily send a torque limit request in order to tune the Torque Reduction Retard and Cut Percentage tables.This value resets to 3000.0 Nm each time the ECU is restarted. This temporary torque limit is always active, and so the default value is 3000.0 Nm as this is out of range for most applications, and so nothing is applied when not in use.