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HOW DOES THE
POWER BOOST VALVE WORK?
The Power Boost Valve is a high
performance tuning part which replaces
the original equipment valve (fitted to
the vehicle).
A range of models are available to suit
a wide variety of European cars, which
almost certainly includes yours. We are
continually developing new designs to
expand the number of applications.
We outline the benefits of the Power
Boost Valve by drawing a comparison
evaluation:
Ref: Original Equipment Fuel Pressure
Control Valve
The electric fuel pump supplies fuel at
a high pressure to the fuel rail and
injectors, which is then regulated by a
fuel pressure control valve.
Typically, the regulator is not
adjustable and is pre-set to a 3 bar
maximum pressure. At idle the fuel
pressure valve reduces it by 0.5 bar
approximately to 2.5 bar. When
accelerating quickly from standstill the
fuel pressure increases at a
proportional rate retaining a lean fuel
mixture strength as required by the
E.E.C. for new vehicles. However, the
resultant effects of the standard valve
produce:
-
lethargic throttle response
-
occasional drivability problems at
slow traffic speeds
-
intermediate performance 'flat spots'
when accelerating
By
comparison:
Ref: Power Boost Valve (replacement)
Firstly, this valve has an adjustable
fuel pressure, effected by the movement
of an adjustment screw on the crown of
the unit.
New Power Boost Valves are pre-set with
a maximum fuel pressure of 2.5, 3.0 or
3.5 bar, depending on the vehicle in
question, and similarly (to the original
valve) the fuel pressure is reduced by
0.5 bar approximately at idle. There
the similarities end.
On acceleration from standstill the
Power Boost Valve fuel pressure will
increase at 1.7 times the standard
rate. This will produce a healthy,
strong fuel mixture strength which will
instantly improve the drivability of
your vehicle, providing:-
The
regulator enhances engine performance on
acceleration by enriching the mixture
strength. On constant throttle and
cruise conditions the valve returns to a
normal regulator function.
The Power Boost Valve is simple to
install and in most instances basic
fitting instructions are provided.
These units are mechanical and are
considered maintenance free.
We thank you for your interest in our
products and hope that this bulletin
provides you with enough information to
answer any questions when making a
purchase. |