Microscopías

16.2.1 Number of Stages (1-4)

This parameter sets the number of power adder stages that will be used.

16.2.2 TPS Enable Threshold (%)

This parameter sets the minimum TPS reading required for the power adder functions to begin (and continue).

16.2.3 Activation RPM (>)

This parameter sets the minimum RPM required for the power adder functions to become active.

16.2.4 De-Activation RPM (<)

This parameter sets the minimum RPM required for the power adder functions to remain active.

NOTE - Once engine RPM exceeds the “Activation RPM (>)” setting, the RPM requirement for Power Adder mode activation is satisfied. If RPM drops below “De-Activation RPM (<)”, the power adder mode will be deactivated.

16.2.5 PA Fuel Table options

These radio buttons determine how the Power Adder Fuel Tables are used.

● PA Fuel Tables OFF - This means the ECU ignores the Power Adder Fuel Tables so that power adder stages

can be used to affect timing only.

● PA Fuel Tables Exclusive - This means once the power adder enable conditions are met, the ECU will not use

the Base Fuel Table to determine the amount of fuel to inject. Instead, it will rely solely on the Power Adder Fuel Tables. In this mode, the Power Adder Fuel Tables MUST be programmed to include enough fuel for regular engine running plus the extra fuel required to satisfy the needs of the power adder.

● PA Fuel Tables Additive - This means once the power adder enable conditions are met, the ECU will continue to

use the Base Fuel Table to determine the amount of fuel to inject. But it will now add the amount of fuel

programmed into the Power Adder Fuel Tables over and above Base Fuel. In this mode, the Power Adder Fuel Tables would be programmed to just include the extra fuel required to satisfy the needs of the power adder.

16.2.6 Enviro Correction Inhibit

The ECU normally makes fueling adjustments to compensate for changing air temperature, coolant temperature and barometric pressure. When this option is selected, and the power adder enable conditions are met, these fuel

adjustments are disabled. Caution should be exercised if selecting this option. With the fuel adjustments disabled, the same calibration file may run differently from location to location, from day to day, or even from hour to hour depending on ambient conditions. While using this option, the user will have to manually compensate for changing ambient conditions by making other changes to the calibration file.

16.2.7 PA Hold/Force Max. Stage

This feature has two very different functions attached to it which are the Power Adder Hold and the Force Max. Stage. Both can be very useful while using the Power Adder functions.

● Power Adder Hold – This is the function used when the radio button found in the Power Adder

Global Parameters screen is left unchecked. This is used to pause the power adder timer. Wiring the pink wire found on pin E of the POWAD connector to a button is usually the best way to apply this function. The other side of the button needs to be wired to ground so that when you apply the button the function is applied as the input is grounded. This function is explained in more detail below in the Power Adder Hold section.

● Force Max. Stage - When the radio button is checked in the Power Adder Global Parameters

screen, it changes the function of the Power Adder Hold input to the Force Max. Stage mode.

Instead of pausing the power adder timer, this will immediately advance the power adder functions to the highest programmed stage. That is, if the “Number of Stages (1-4)” parameter is set to 3, and the Power Adder Hold input is grounded, again usually through a button wired to a ground, the fuel enrichment, timing retard and target A/F ratio that have been set for the 3rd stage will be used. This is handy for the bracket racer that likes to use nitrous to race the finish line.

16.3 1st through 4th Stage Parameters

Each of the power adder stages allow for changes to fueling and ignition timing. Each stage has a separate setup window for these functions.

16.3.1 Delay (Sec.)

There is no Delay (Sec.) parameter in the 1st Stage Parameters window. When the power adder enable conditions are met, Stage 1 is activated immediately and the power adder timer is started. For Stages 2, 3 and 4, the Delay (Sec.) parameter determines when each succeeding stage will start. These times are cumulative from the time when the power adder timer began. In other words, they represent the elapsed time from when the 1^st Stage (or in some cases, the 2^nd Stage) has started - not the time after the previous stage started.

For example, assume the 2nd stage delay is set to 2 seconds and the 3rd stage delay is set to 3 seconds. Once the power adder enable conditions are met, Stage 1 will activate. Stage 2 will activate 2 seconds after Stage 1. And Stage 3 will activate 1 second after Stage 2 (or 3 total seconds after Stage 1).

16.3.2 Supplemental Enrichment (%)

With each stage, the user has the option to increase the amount of fuel being injected by a set percentage. This feature can be used in addition to or in place of the Power Adder Fuel Tables. A positive number adds fuel. A negative number reduces fuel. For example, enter 10 to add 10% more fuel.

16.3.3 Target A/F Ratio

With each stage, the user specifies the desired air/fuel ratio. This setting overrides the A/F Ratio Table normally used by the ECU to determine the desired ratio.

16.3.4 Closed Loop Inhibit

With each stage, the user has the option to disable closed loop fuel control. When this option is selected, the ECU will inject the amount of fuel programmed into the various fuel tables without attempting to achieve any certain air/fuel ratio.

Closed loop mode is globally enabled in the Closed Loop Parameters screen. If it is not enabled there, this setting has no effect.

16.3.5 Timing Retard (*)

With each stage, the user has the option to retard ignition timing by a set amount. These values are total degrees of retard from base timing - not an additional amount to retard relative to the previous stage.

For example, assume the 1st stage has Timing Retard set to 10* and that the 2nd stage needs to be retarded an additional 6* - for a total retard of 16*. In this case, the 2nd stage Timing Retard would be set to 16* (the total retard) - not 6* (the change from the 1st stage).

16.3.6 Fixed Timing

With each stage, the user has the option to specify the exact amount of ignition timing to be used. When this option is selected, the ignition timing will be fixed at the value entered in the Timing Retard (*)

parameter. The only exception is if the PA Ramp Retard feature is being used. In which case, the timing may temporarily be retarded from the user specified fixed timing.