The Apexi AVC-R is a highly versatile turbo boost controller which allows remapping of the boost curve for Rpm in different gears.
Main Menu (main menu selection)
Monitor Mode: Allows monitoring of up to 4 channels at one time. Also allows tracing of AVC-R monitor functions.
Setting Mode: There are three setting modes: A, B, or OFF. A total of two boost settings are available with the AVC-R. Selecting OFF will turn off all boost control
 
Etc. Mode: The etc menu is used for configuring the variables that allow the AVC-R to properly control boost. (I.e. # of cylinders, speed sensor type, throttle sensor type, gear judge, etc.)
 
Monitor Mode: 1,2,3,4 Channel
Up to four data channels can be selected for monitoring:
 

Up to four data channels can be selected for monitoring:

Intake Manifold Vacuum/Boost Pressure
Engine RPM
Vehicle Speed
Throttle Position
AVC-R Solenoid Valve Duty Cycle
Injector Duty Cycle (if connected)
 

Up to four of these parameters can be monitored in three different ways:

Numerical
Analog Meter
Graph Display
 

 

If monitored numerically, the user can see a peak hold value for the chosen parameter by pressing the up key.
If monitored in analog meter mode, up to two meters can be displayed at one time. By pressing the up key, the analog meters will hold the peak value. If under 3 or 4 channel mode, only the first two channels will be displayed.
If monitored in graphic display mode, the AVC-R can start "sampling" or memorizing data channels by pressing the up key. The memorized graph can then be replayed by pressing the right key. Anytime during replay by pressing the right key again, the display can be paused. To review any part of the memorized graph, the user can push the left key during replaying. Anytime during backwards replay, the left key can be pressed to pause the display.
If monitoring one channel, then the last 60 seconds can be replayed.
If monitoring two channels, then the last 30 seconds can be replayed.
If monitoring three channels, then the last 20 seconds can be replayed.
If monitoring four channels, then the last 15 seconds can be replayed.

 

Monitor Mode (2D Trace Mode)
Boost
Speed
Throttle
Solenoid Duty
Injector Duty
The 2D Trace Mode displays one user-selected parameter versus engine RPM. The horizontal scale being engine RPM and the vertical scale being the user-selected parameter. There are three ways to view the 2D Trace. One way is a simple cursor that floats around the screen showing what the user-selected value is. The second way to view the graph is with a 10 point floating trail to show the trend of the user-selected value. The third way is to view with a "Ghost Map" trace. The "Ghost Map" shows wherever the cursor has been and does not clear until the user clears the screen.
Setting Mode: (setting [A] / setting [B] / OFF)
The AVC-R has 2 preset boost levels, A and B. For example, channel A can be used for a low boost level and channel B can be used for a high boost level. The user can then effectively switch between low and high boost modes. All adjustments made under the A mode will be only for the A mode. Likewise, all adjustments made under the B mode will be only for the B mode. If OFF is selected, the AVC-R's solenoid valve will be deactivated and boost levels will be regulated by the wastegate alone.
Setting Mode (Boost / Duty
This mode allows setting of the target boost pressure and solenoid duty cycle. Both boost and solenoid duty are adjustable by user-selectable RPM points. After this mode is set, when the boost is stable and throttle position is over 85% the unit will begin self-learning the solenoid valve duty cycle. Self-learning will determine the optimum solenoid valve duty cycles for your particular engine.
Setting Mode (scramble boost)
By adding an optional momentary switch, the boost pressure can be increased or decreased for a certain amount of time. The user can also choose to increase or decrease solenoid duty cycle to make the additional amount of boost come in very quickly or progressively. This feature can help traction-limited vehicles.
Setting Mode (Ne-Point)
This menu allows adjustment of engine RPM points to control boost pressure and solenoid duty cycles. The user can adjust eight points between 1500 and 9500 rpm in 500-rpm increments.
Setting Mode (F/B Speed)
If unstable boost or boost drop occurs during boost control, the Feedback Speed setting may require adjustment. The feedback speeds are adjustable by gear. The higher the value, the faster the AVC-R will try to adjust the boost. However, if the value is too high, oscillation can occur. If the injector signal is used rather than engine rpm, we recommend that this function be turned off in every gear. Select the "X" value to turn off the Feedback Speed setting.
Setting Mode (learn-gear)
This allows the user to either activate or deactivate the gear-based learning. If the injector signal is used rather than engine rpm, we recommend that this function be turned off in every gear. Select the "X" value to turn off the Feedback Speed setting.
Setting Mode (start duty)
This mode is used for adding or subtracting solenoid duty cycle when boost control first starts in each gear. This allows an extreme fine tunability to the boost curve. Use the start duty setting and lower the value when the boost pressure overshoots (when actual boost pressure is higher than desired), or raise the value when you would like the boost pressure to intentionally overshoot. Higher Start Duty values will make the boost pressure levels higher.
 
Etc. Mode:
Etc. Mode (car select)

This mode allows the user to select the number of cylinders, the vehicle speed pulse type, and throttle sensor type. All Japanese vehicles in America use a four-pulse speed sensor trigger. Most Japanese vehicles use an ascending type (arrow pointing to the upper right hand corner) throttle position sensor. If you are unsure of what type of throttle position sensor your vehicle has, you can check the Etc. Mode (sensor check) screen. If your throttle sensor voltage goes from 0-5V when going from closed to open, then your throttle position sensor is an ascending type. If your throttle sensor voltage goes from 5-0V when going from closed to open, then your throttle position sensor is a descending type. If your vehicle does not use a throttle position sensor, then use the "**" selection.

Etc. Mode (gear judge)

In order for the AVC-R to identify gears, a Gear Judge value must be entered per gear. This value is engine RPM divided by Vehicle Speed. In order for the gear determined functions to work properly, the Gear Judge values must be entered. If the injector signal is connected to the AVC-R rather than the engine rpm signal, then the Gear Judge does not need to be set.
 

Etc. Mode (Grph Scale)
This mode allows the setting of the maximum and minimum values to be displayed under the Monitor Mode's graph display mode, analog meter mode, and 2D Trace mode. The user can select the following scales:
Pr: Intake Pressure -760mmHg~0mmHg
-760mmHg~+1.0kg/cm²
-760mmHg~+2.0kg/cm²
-760mmHg~+3.0kg/cm²
Ne: Engine RPM 0rpm~6000rpm
0rpm~7000rpm
0rpm~8000rpm
0rpm~9000rpm
0rpm~10000rpm
Sp: Vehicle Speed
 
0-180km/h
0-240km/h
0-300km/h
0-360km/h
Etc. Mode (sensor check)
This mode will check the voltage of the pressure sensor, throttle sensor, and scramble switch on/off. This is to check if all connections have been properly connected after installation. Also if there is improper operation, this screen can be viewed to determine if any connections or sensors are bad.
Etc. Mode (VFD bright)
This mode allows brightness adjustment of the VFD (Vacuum Florescent Display).
Etc. Mode (Initialize)
This will restore all data to factory default settings. All previously saved data will be lost. To initialize data, select YES and push the [NEXT] key. Then turn the ignition switch OFF and then ON again. All data will be initialized.
 

 

 

TKO