MSD 7562 Programmable Launch Boost Controller Installation User Manual

Page 2

INSTALLATION INSTRUCTIONS

MSD IGNITION

• 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344

SENSOR

Select the type of Manifold Absolute Pressure (MAP) sensor you will be using.

2 BAR

Up to 30-psia

3-BAR

Up to 45-psia (This is the default setting)

75-PSIA

Up to 75-psia absolute pressure

75-PSIG

Up to 75-psia gauge pressure

PID

These are the tuning functions of the Controller that manage the waste gate response. Proportional
Integral Derivative (PID) provides mathematical adjustments that you program in order to obtain
the optimum response and control of the waste gate. The defaults are 40 for each with a range of
0-255. Testing and tuning through the acquisition files is going to be key in setting the controller
properly. Page 8 goes into more detail in programming these settings.

GAIN
P

This is determined by reviewing the maximum PWM value when boost is
being controlled.

This value is used to correct the long term pressure error based on time.

Increase this value when the PWM is too high or when the boost pressure
overshoots the target pressure.

ENABLE

This setting allows the user to set a target pressure window where the I Gain setting is allowed to correct
a pressure error. The default is set for 1.5-psi and can be programmed from 0 (no I) to 5-psi.

CYLINDER

Select the number of cylinders for your engine. Choose 4, 6 or 8-cylinders. Default is 8.

ACQUIRE

This setting allows you to select how and when the acquisition feature begins recording data.

RPM Set the rpm that the engine must reach to arm the acquisition feature. If this rpm is

not achieved, no data will be recorded.

ARM Select how the acquisition feature is armed prior to beginning to record.

RPM: Set an rpm that the engine must reach in order to arm the Acquisition feature.
If this rpm is not achieved, no data will be recorded. (The Launch wire must be
connected to 12 volts.)
Launch: The Acquisition feature will be armed when the Launch wire (Dark Blue) is
activated, only after the Light Blue wire has been activated.
Off: No data will be recorded.

Mpy: This allows you to multiply the amount of time that data can be acquired.
Twenty seconds multiplied by 2, 4 or 8 for a max aquire time of 160 seconds.

ALERT

Alerts are messages that can be viewed on the screen of the Hand Held Monitor. You can choose
to have the Alerts be displayed or skipped when they are active on single or multiple screens.
The Alert messages at this time include:

LampShort

The remote indicator is shorted or overloading.

PSIOVer

This indicates that the boost pressure is more than 2-psi over the target boost
pressure value for over two seconds. This could be caused from incorrectly
set PID values, a waste gate problem, a line is plugged or inoperative, or the
valves are not wired correctly.

ALERTS PER

Select the number of Alert Messages that will be displayed each time the display is interrupted. The
default is set to 0 to not show any alerts.