SM4 Manual
by
MRM-Racing
V3.0
45
When we have configured the boost control, but the regulated boost pressure is very rough, we
can come back to this table and increase the values until we get a smooth pressure curve. But
for now we set it to all zeros.
Boost dynamic compensation table
Now we continue to set the table in the menu
M5 / Boost offset
. Set it up with the same Engine
speed values on X-axis as the previous tables, and with the Y-axis showing both the lowest and
the highest Boost setpoint pressures that we want to regulate. (In our example is is 190 and 250
KPA absolute pressure). Then set all the cells in the table to zero. This is a good starting point.
This table is the equalizer. If we have set the correct
Boost range
earlier, then this is the only
table we need to change values in to get exactly the boost pressure we want.
If we must go back and change the
Boost range
then we must redo this table after that.
Boost offset table
Correct procedure for testing that the boost control regulates to the wanted
Boost setpoint
is to
first check what boost pressure is achieved in first gear.
If the boost control overshoot the wanted pressure in first gear, the engine and the transmission
will not take the same beating as it would do if we where on, for example third gear.
There are two main reasons for this:
•
The engine will feel less load in a lower gear
•
The time spent on boost is significantly less in a low ger than in a higher gear
Содержание SM4
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