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Power Arc Ignition Development System
(Version 2)
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Ignition Development System
The Ignition Development System
is a software/hardware based ignition
development system which can be used to create custom ignition systems for
1,2,H-D,3,4,6 and 8 cylinder engines. Both 2 and 4 cycle engines are supported. The system uses a precision optical pickup
and a stainless steel rotor. The Ignition Development system
employs the patented optical counting system with the ability
to accurately place up to three separate sparks (with 2-10 transitions) at different crank angles to create a highly stable adjustable multi-spark ignition system
(other patents are pending). The same rotor may be used for all engine
types and can be mounted on the crankshaft or the camshaft. High voltage
distribution can be done by a distributor cap or it can be distributorless (coil
based). Each spark's timing can be independently adjusted directly via the
graphical interface. There are two configurable input sensors than can be either
analog or digital. There are two RPM based outputs
(some models)
with separate on and off RPM values that
can be different for each sensor state. Virtually any tachometer can be used on
any engine. The number of engine starts is recorded
as well as whether or not after engine start the engine ever exceeded a preset
Maximum desired RPM level.
Programming Different Models
Power Arc IDS ignitions are available
in 5 different models. The CP-2, VP-2 and VP-4 ignitions can be directly
re-programmed with the PLC (Program Link Cable). The C-1 and C-2 ignitions require
the use of a pin bed (wholesale only) to be re-programmed . All ignitions have
been pre-programmed at the factory to a default ignition curve. The curve
is based on the type of adaptor or distributor the ignition was shipped with and
corresponds to a specific engine or vehicle type. See
wiring diagrams for additional information about each model.
Program Features
Timing Curve (graph)- Each timing curve has up to 10 transitions of timing with
adjustable coil
saturation (coil on/energized time) and up to 3 sparks per compression stroke. Each curve
has an adjustable Rev. limit, 2 RPM activated switches (some models), and a text box for
notes. When a new curve has been created with the new curve wizard a series
of nodes or points are present with lines plotted between them. These
nodes can be clicked on and dragged or adjusted to the desired position.
The red horizontal line represents the coil on or saturation line and can be
adjusted in 10° increments. Please be
aware that the maximum coil on time is limited by the software depending on the
type of engine that the ignition is being developed for. Too much coil on time
will overheat the coil potentially damaging it, and eventually weakening the
spark output. Insufficient coil on time will create a weak spark all the time.
At low RPM very little coil on time in degrees of crank are required while at
higher RPM more coil on time is required.
The remaining horizontal plot lines are for sparks. Up to three sparks can be generated in a compression stroke. Click and drag these sparks to their desired locations. There must be at least 5 degrees of spread between each spark. There are really no guidelines for placement of these sparks. They vary according to engine type, fuel type, RPM etc. You are going to have to experiment since these types of capabilities (individual adjustment of multiple sparks) have never previously existed.
All node values can also be adjusted by double clicking them and entering the desired value in the corresponding text box. The vertical dashed red line represents the Rev. limit value.
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Menu Items File New Open Save Save As Program Ignition Print Graph Last Opened 1 2 3 4 |
| Config Serial Port Change Distribution Type Change Rotor Position Upgrade Firmware Adjust Sensor Adjust Fallback RPM |
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Help Help Topics About Dialog |
| About Sensors and Ignition Curves- A drop down list can be selected to display various
ignition curves based on the sensor state. There is one unique advance curve available for each sensor state. There can be up to four different sensor states and thus four different advance curve
graphs.
If None is selected as one of the sensors only 2 curves are available and
if None is selected for both sensors you will only have 1 curve. The
sensor state can be changed by double clicking the
sensor in the Status Box or by going to Config - Adjust Sensor. Some ignitions have only 1 sensor input others may have no sensor inputs.
Be sure to adjust the curve nodes and fill in any other values such as the Rev.
limit for all sensor states. Sensor 1- Digital sensor 1 can have either a grounded (tied to negative of the battery) or ungrounded state (not tied to negative of the battery). When the status field says "Digital" it means that sensor 1 is configured as a digital sensor. Analog sensor values are limited to a range of 0-4 Volts in 1/10 volt increments. The voltage in the sensor 1 status field represents the transition point between the activation of the two advance curve graphs created for Sensor 1. One graph for cases when the voltage is greater than or equal ( > ) to the transition voltage and one when the voltage is less ( < ) than the spark advance transition voltage. A value of NONE means that sensor 1 is not being used. Sensor 2- Digital sensor 2 can have either a grounded (tied to negative of the battery) or ungrounded state (not tied to negative of the battery). When the status field says "Digital" it means that sensor 2 is configured as a digital sensor. Analog sensor values are limited to a range of 0-4 Volts in 1/10 volt increments. The voltage in the sensor 2 status field represents the transition point between the activation of the two advance curve graphs created for Sensor 2. One graph for cases when the voltage is greater than or equal ( > ) to the transition voltage and one when the voltage is less ( < ) than the spark advance transition voltage. A value of NONE means that sensor 2 is not being used. |
Pick a Sensor State. There is a unique ignition curve for each sensor state. ![]() |
Rev. Limit- The RPM value that the engine is
limited to. There can be a unique value for each sensor state. Be sure to
place values in all sensor states if desired. The RPM value can be adjusted
by dragging the red dotted vertical line on the graph or by entering a value
into the Rev. limit text box. The vertical Rev. limit line will not be
visible until a value is entered into the Rev. limit text box. Values
must be in 50 RPM increments from 50 - 12,500 RPM. A value of Zero
means there is no Rev. Limit. Warning- Do not lower the value below
factory specifications. Do not limit the
engine RPM below recommended factory/OEM settings. This could impair or
reduce a vehicles ability to make emergency maneuvers. If
you wish to monitor how many times a pre-desired maximum RPM was exceeded
(such as during engine break in) RPM Switch 1 (Start)-
Rpm value at which RPM switch 1 is activated or turned on. There can be a unique value for each sensor state. Be sure to place values in all sensor states if desired. Values must be in 50 RPM increments from 50 - 12,500 RPM. The
output grounds when activated (tied to negative). Not all ignitions have RPM switch outputs. |
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Status Fields
![]() Double clicking on the corresponding status box allows you to change the settings (No. of cylinders, Engine type and Ignition Name/Model can not be changed). No. of Cylinders- Indicates the number of cylinders the engine has. 1,2,3,4,6,8 or H-D (Harley-Davidson). This setting can not be changed except by making a new curve. H.V. Distr.- Indicates whether high voltage distribution by the spark plug wires is done with a distributor cap (Distrib.) or by coil (Coil). Distribution by coil requires two High Voltage outputs per cylinder for each coil used. Rotor Pos.- Indicates whether the rotor is attached to the Cam or the Crank (location of the pickup sensor) indicating Cam or Crank speed. Tach Type- A wide variety of tachometers may be used 1,2,H-D,3,4,6 and 8 cylinder tachometers can be used regardless of the engine type the ignition is configured for. Tach Type represents the type of tachometer that is connected to the ignition. The value represents the number of pulses per cam revolution for four cycle engines. The one and three cylinder tachometers put out the same number of pulses regardless of rotor mount position.
Curve Fallback- The separation in RPM between the engagement of a new spark advance (engine accelerating) and the disengagement of that spark advance (engine decelerating). For instance if the Fallback RPM was set at
200 RPM and a curve change was set to occur at
2000 RPM then the spark advance would change during acceleration at 2000 RPM and change back to the previous spark advance during deceleration at 1800 RPM. Graph nodes are limited in the RPM axis to the fallback value plus 50 RPM. Ignition Name/Model- Shows the name or model of ignition for which the curve was created. This setting can not be changed except by making a new curve. |