Boost Retard
On turbo engines it is often ideal to be able to apply a controlled
amount of ignition retard as the boost pressure increases. This is
important to prevent dangerous detonation which can quickly melt pistons
and destroy an engine.
The POLESTAR Turbo Management System employs an integral
manifold absolute pressure sensor (MAP) which constantly measures the turbo
boost pressure (0-1.5bar, or 0-22psi) boost). The system can then be
configured with between 0 and 5 degrees of ignition retard per PSI of boost
pressure. This value can be configured in 0.25 degree increments for super
accurate engine timing under boost conditions. The calculated retard value
is subtracted from the base advance figure in the engine map. This gives
safe smooth delivery of power from a turbo engine.
This functionality is available in both our fuel injection and ignition
only ECUs.
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