The
Haltech
Boost
Control
Solenoid
allows
the
user
to
map
boost
pressure
levels
on
turbocharged
vehicles
through
the
engine
management
system.
Haltech
uses
a
highly
durable
short
stroke
solenoid
to
increase
durability,
longevity
and
of
course
accuracy
of
the
valve.
A
high
force
spring
return
is
used
to
produce
swift
valve
closing
and
to
prevent
valves
"blowing"
open
under
high
boost
applications.
Valve
movement
control
(Duty
Cycle)
map
is
accessed
via
the
ECU
programming
software.
Raising
the
duty
cycle
increases
boost
pressure,
while
lowering
the
duty
cycle
will
reduce
boost
pressure.
The
boost
control
feature
allows
boost
response
adjustment
for
varying
turbo
sizes.
Depending
on
the
ECU
being
used
some
people
may
want
to
utilise
the
gear
based
boost
control
feature,
this
allows
separate
boost
levels
to
be
set
at
every
RPM
in
every
gear.
One
of
the
latest
features
is
also
the
implementation
of
closed
loop
boost
control
where
all
that
needs
to
be
done
is
tell
the
ECU
exactly
what
boost
to
run
at
each
RPM
and
the
computer
computes
the
opening
duty
cycle
of
the
boost
control
solenoid
automatically,
this
feature
accounts
for
changes
in
air
temperature,
barometric
pressure,
intercooler
heatsoak
and
any
other
unexpected
factors
that
may
effect
inlet
air
temperature
and
pressures.
With
the
continual
improvement
and
innovation
consistently
going
into
all
of
Haltech
ECU's
in
the
area
of
boost
control
its
hard
to
imagine
how
your
turbocharged
engine
ever
lived
without
a
Haltech
boost
control
solenoid!