The DevilsOwn™ DVS4 Kit was designed and built to pack as much usability and customisability into a package as possible but keep it affordable. It’s designed for users who either want to start with the simplest of systems but have the potential to upgrade with as little hassle as possible or have a full-blown system adding cooling and fuelling with progressive maps and failsafe’s all rolled into one.

We listened to feedback from users, tuners, and distributors to find a system that would work for everyone.

Controller features:

LED Display.
Wide Ranging input voltage 10v to 30v.
Inbuilt Power Filter.
Stable 5v output.
Intelligent Processor Control.
Supports 0 to 60psi (0 to 4bar) via internal MAP sensor
Supports up to 80 psi (5.5bar) external MAP sensor.
Can use AFM or TPS as Signal Voltage input.
Supports:-

2 Valves - Check Valve - Solenoid - Pulse Solenoid - Race Valve
2 Tanks with Different Methanol Mixes
2 Pumps
2 Failsafe’s

Failsafe Pressure Switch or Pressure Sensor
Detects:

Low Pressure:
Running Out of Fluid.
Popped Off Pipe.
Significant Leaks.
Kinked Line.
Pump Issue.
Blockages:
Block/Failed Check valve, Solenoid, Pulse Solenoid or Race Valve.
Blocked Filter.
Blocked Nozzle.

Internal Relay

Common, Normal Open and Normally Closed Connections.

Fluid Level Indicator

Passive Float Switch (Hole Required to be cut in tank).
Active Sensor (No Hole required and can be easily moved if required).

The controller has an in built 4 bar MAP sensor. Find an accessible vacuum line that and cut it in 1/2. The supplied Tee for ¼” hose, your vacuum lines maybe another size and you will need to supply your own Tee. These can be purchases at any local hardware store. Route the silicon hose so that it is free from any sharp edges and connect to the controller boost input and secure with a cable tie. The system can use an External map sensor, and the signal wire is connected to the white cable on the controller power harness.

The harness has been designed and manufactured to fit a standard model with plenty of cable to make it so that that cable may be cut rather than extended and reduce the number of connections required. This is to minimise points of failure as most faults caused within DevilsOwn™ Methanol/Alcohol Injection Systems are caused by electrical/wiring faults and are outside of our control.

Harnesses are available to run additional functionality:-

Module 2 - Valve only Harness

Has connections to control a second solenoid, pulse solenoid or race valve and failsafe pressure switch.

Module 2 - Full Harness

Has all the connections to run a second system completely independently of Module 1.

Introduction

Water injection systems prevent or suppress detonation. It works by spraying an extremely fine mist direct into the intake manifold at a pre selected boost pressure or in the case of naturally aspirated engines, a pre selected RPM.

Alcohol/methanol injection doesn't do the same things as NOS does. None of the same dangers. It is acting as an intercooler enhancer and octane booster. It can lower the cylinder temps or exhaust gasses by 300 degrees and makes 95 octane fuel basically look like 112 octane.

Fuel accounts for 70% of engine cooling and FACT Water absorbs SIX times more heat than fuel and evaporates instantly inside the intake manifold taking with it a great deal of heat, so you can imagine the massive cooling effect of water injection.

Ever noticed how well your car goes on a cold wet/damp evening well here's an interesting fact: on a rainy day, 1Kg of air at 25C contains about 33ml of water. A typical 2 litre turbo engine consumes over 200cc of water per minute at 6000rpm on a rainy day at 1 bar boost. That's not far off the quantities water injection normally operates at.

As we approach high tuning levels we will experience a considerable increase in cylinder pressure and temperature, but at the same time more power. Since we cannot raise the melting point of the pistons, we must find a way to control and keep the engine components from overheating. Having six times the latent heat of fuel and huge expansion rate from liquid to gas (single molecule of water – not droplets) water is the ideal substance to inject as a coolant. Having absorbed and dealt with the destructive heat, the by-product (superheated steam at x1400 volume increase) becomes an active partner in adding force to the downward pistons, Water is converting the extra heat energy for wheel power. Without water, the excessive heat must be transferred to the cooling system and lost into the atmosphere. Since the quantity of water injected is relative small compared to injecting some six times the amount of fuel to arrive at the same cooling property. To all intent and purposes, we are not advising anyone to go this far but the possibility is there and achievable. In most cases, one can venture into the extreme gently. Since water is free, it costs nothing to continue your quest for a highly efficient engine that produce far more power than the fuel dumping method.

HOW MUCH CAN AIR TEMP EFFECT PERFORMANCE YOU ASK???

From the table below, you will note that air at 0C contains almost 30% more oxygen per given volume, than air at 77C.

Air Temperature
Air Density
% increase of oxygen

77C
0.9950 kg/m^3

40C
1.113 kg/m^3
+ 12% oxygen

27C
1.1614 kg/m^3
+ 17% oxygen

0C
1.2763 kg/m^3
+ 28% oxygen

So if your car is tuned for say 12.0:1 fuel mixture (rich) for maximum power and the air going into your engine is at 77C, you might make say 241bhp @ wheels. Now if you could get that intake air down to 0C and still have your engine tuned at 12.0:1 fuel mixture, you will make 30% more power based simply on oxygen levels in the air = 241bhp @ wheels x 1.3 = 314bhp @ wheels. That’s a massive 73bhp increase!!! Now obviously, unless your using dry ice somewhere along your intake path, you won’t get the air to 0C, but that is just to give you an indication of the true effects of air temps and their relation to power output.

The kit allows you to run higher boost, advance ignition and lean out air fuel ratios.

The Devils Water Injection System is currently in use on the some of the fastest vehicles around, it has applications in drag, drift and circuit racing as well as on the street.

Alcohol does not cause any problems to your engine. It actually "steam" cleans the inside of your throttle body, intake, heads, valves, and exhaust!

Don’t buy a knock-of brand kit with cheap parts for you beloved car, unlike many other brands the Devils pump (Shurflo 8030 series) can run 100% methanol or alcohol as it's chemical resistant or run dry without getting damaged with its EPDM /Nylon valves, Santoprene diaphragm, and adjustable peek pressure from 150 to 300psi. It can also prime itself up to 8ft, so unlike others it doesn’t have to be gravity feed making a lot easier to mount, very handy when space is an issue.

This kit only uses the highest quality parts. This kit utilizes a PROGRESSIVE CONTROLLER for activation, It has a built in 4Bar map sensor or it reads the signal from the cars standard map sensor which converts boost into an electrical signal, allowing the user for an example to say start flow at 15% @7psi and then ramp the flow upto 100% by 18psi allowing you to create a very linear flow which in turn will create a smooth power/torque graph.

This kit will fit any supercharged or turbocharged petrol or diesel engine etc.

Kit Contents

300psi pump with EPDM seals
Allen key can be used to adjust water pump pressure
DVS4 progressive controller with LCD screen
15' of High Pressure Black Tubing
Injector (please supply engine cc & max boost + rpm so we can supply appropriate sizes).
Nozzle Holder
ProMeth Pulse Fast Acting Valve (FAV) valve
Metal filtered self sealing tank tap
All fittings needed for installation
Inline Fuse Holder with 15 amp fuse
Zip ties and wire splices and connectors
Alcohol/water injection install Instructions with stickers.