Screen 7A
BOOST START INCREASE
This screen sets the boost pressure required to start injection through
the nozzle. This should be set at a boost that just above normal driving.
IF you hit 5 psig leaving a stop light normally, set this to 7 psig.
Screen 7B
BOOST START DECREASE
This screen sets the boost required to start injection.
Screen 7C
BOOST FULL INCREASE
This screen sets the boost full point when maximum injection through the
nozzle will be reached. In most applications, this should be set at a boost
achieved at WOT in hard driving.
Screen 7D
BOOST FULL DECREASE
This screen sets the boost full point when maximum injection through the
nozzle will be reached.
Screen 8A
PW/BOOST CONTROL INC
This screen adjusts the balance between boost and PW based injection.
Pressing button 2 will increase the PW importance and decrease the
boost importance by 1%. If it is set at 50/50, then PW and boost are
weighted equally to determine how much to inject at any given time. The
weighting can be adjusted in 1% increments. 50/50 is often a good
starting point.
Boost Start
Increase---------
Boost Start
Decrease-------------
Boost Full
Increase--------------
Boost Full
Decrease-------------
PW/Boost Control
50/50 Inc-------
Screen 8B
PW/BOOST CONTROL DEC
This screen will decrease the importance of PW while increasing the
importance of boost in 1% increments as you press button 2. Decreasing
the weight of boost is useful for quick spooling turbos or positive
displacement superchargers in EFI applications. (See Screen 8A)
Screen 9
POWER MODE
Set this screen to Boost
Screen 10A/B/C/D
POWER set points
Note Power Mode is used with MPG-MAX systems only.
Tuning Examples:
To properly tune the Stage 3 Controller you
must first find your baseline Fuel Injector
Pulse Width and Boost Ratings.
For Naturally Aspirated motors:
The injection START point should be approximately 5%
higher than your cruising Fuel Injector Pulse Width
(PW).
The injection FULL point should be approximately 5%
lower than your Wide Open Throttle (WOT) PW.
For Turbo/Supercharged Applications:
The injection START point should be approximately 3-
5PSI higher than your cruising or ¼ throttle boost.
PW/Boost Control
50/50 Dec------
Power Mode Boost
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