System 2d shown above
ERL's latest generation of water-injection equipment. The
main function of these systems is to suppress detonation caused
by high temperature and pressure developed within the combustion
chamber when the effective compression ratio has been taken
beyond the auto-ignition point by either a turbo or a supercharger.
Water, with its high latent heat content, is extremely effective
for controlling not only the onset of detonation but also
the production of oxides of nitrogen in the modern leanburn
engines. ERL's latest products are designed with great care
to ensure each system meets the highest standards of both
electronic and mechanical reliability.
THE CONCEPT of
injecting water into the internal combustion engine has been
around for over 50 years. But the desire to extract more power
from the standard production engine has increased at a neck-breaking
speed. ERL has just revived this old principle, applying the
latest techniques in both electronic and mechanical engineering
to take water injection into the next millennium.
Is water injection new?: No.
Water injection was used during WWII to surpress detonation in fighter
aircraft and increase their service ceiling.
WATER? Water exists mainly in a liquid
state because that is its most stable inter-molecular structure.
When we apply heat energy to it, its molecules begin to expand:
a great deal of heat is absorbed during this process owing to water's
specific heat capacity - approximately 4.2kJ/(kg.K). When the water
changes from the liquid to gas state, large amount of heat energy
is consumed in sustaining the process. The latent heat of evaporation
is 2256kJ/kg, approximately six times more than gasoline!
Does the water "burn" in the engine?:
No. The water simply converts from a vapor to a gaseous state which
absorbs huge amounts of heat, due to the energy required to transform
SO WHAT? Because of its huge specific-
and latent- heat capacity, water is the perfect liquid for regulating
excess heat under certain engine-operating conditions, for example
induction charge air cooling; but its biggest contribution is inside
the combustion chamber where, under excessive loading, pre-ignition
and detonation can otherwise occur. Such abnormal combustion is
particularly common in force induction engines, where exhaust temperature
can exceed 1600°C in a rotary engine!
Will water injection increase my horsepower?:
Yes, but not directly. Water injection works to eliminate detonation,
also known as knock. The big gains come from the ability to increase
boost as well as the full ignition advance allowed by the ECU when
it does not detect knock. While the cooling of the intake charge
will produce some power increases, those increases are cancelled
by the charge space occupied by the water vapor. In other words,
there is slightly less room for air and fuel. However, by using
up to 40 percent alcohol with the water, additional cooling takes
place before the turbo, and the alcohol works as a fuel in the charge.
This results in an increase in power.
TURBO-CARS are easily upgraded in
performance just by adjusting the boost pressure and upgrading the
engine management system; but the hidden drawback of this solution
is that even more fuel is being dumped -- as a coolant! -- to compensate
for standard engine-cooling arrangements (inside the engine bay
your fast-road car has more-or-less the same radiators and cooling
fans as the family car next door). But as you upgrade your power-upgrade,
you will get to the point where the fuel becomes so rich, and the
flame is burning so slowly, that power is being lost rather than
HELP! Help is indeed at hand! The
ERL Aquamist system, using sophisticated electronics to process
engine-data, injects a precisely-metered quantity of coolant: not
gasoline, but water, six times more effective, and freely available!
(sometimes cut with alcohol) We eliminate fuel-dumping, leaving
your air/fuel ratio unaffected, enabling maximum power to be extracted
from the engine. To ensure that each rotor receives exactly the
same dosage, we deliver the coolant in a fine mist: not only does
Aquamist reduce the risk of damage ... it steam-cleans your engine
with every rotation.
THERE'S MORE ... The Aquamist system
offers a full range of diagnostic features, enabling you to detect
blocked nozzles, cut water-pipes, and all sorts of other smashing
things. If track record and expertise is what you want, don't wait
for your favorite racing driver to tell you about Aquamist on TV:
it might be too late ...
FOR THE MONTH
OF DECEMBER ONLY!! TAKE AN ADDITIONAL 10% OFF LISTED PRICE
1s consists of an ERL high-pressure electro-magnetic
water pump, adjustable pressure switch, plus all the necessary
hardware to form the basis of a starter kit. Download
1s fitting tips (750Kb)
2c Designed for use with third party Engine Management
System. The kit provides all the necessary hardware to interface
with the PWM output signal.
2d Latest addition for 2003 - Full 3-D water injection
system without programming! It keeps track of the fuel flow
and inject water with a fixed w/f ratio, change jet for different
2s A fully-mappable water-injection system, pre-pressurized
system, equipped with diagnostic circuitry, able to detect
blocked water-jet and abnormal operation problems. Download
1s fitting tips (750Kb)
Dash Display System Dash-board
Display for monitoring water flow, user define warning levels
for controlling external boost controller to reduce boost
when abnormal water flow is detected.