Water/methanol injection (WMI) systems reduce air inlet temps and enhance combustion efficiency on turbo Diesel applications, which allows an engine to deliver more power with less effort. Water/methanol injection also offers a host of benefits that promote engine longevity, including the reduction of carbon deposits left by a Diesel’s exhaust gas recirculation (EGR) system. AEM’s Water/Methanol Injection Systems for turbo Diesel trucks and SUVs utilize the most robust hardware combined with more advanced features than any other comparably priced water/methanol injection system.
AEM Electronics offers two different water/methanol controller designs for HD and Diesel trucks:
One is a Boost Dependent HD Controller and has an on-board MAP sensor (up to 40 PSI) with a molded in nipple for a boost hose pickup (PN 30-3301 with 5 gallon tank, PN 30-3303 tank-less).
The second HD controller features a multiple input design. The Multi-Input controller can be programmed to work with a 0-5v signal from an external MAP sensor for Diesels running over 40 PSI of boost, or with a frequency based Injector Duty Cycle (IDC) signal, frequency-based mass airflow (MAF), or 0-5v voltage-based MAF signal (PN 30-3351 with 5 gallon tank, PN 30-3352 tank-less).
Note: FOR OPTIMUM RESULTS, ALL WATER/METHANOL INJECTION SYSTEMS AND GAUGES SHOULD BE RUN WITH AN AEM INLINE FILTER (AEM PART #30-3003)
The new HD controller designs feature large, turn-resistant knobs and larger numbering to easily set accurate start and full activation points, with covered status LED and test buttons for added splash resistance. A plug is integrated into the HD controller housings for mating to the redesigned wiring harness’s positive-lock connector. The Boost Dependent HD controller housing (PN 30-3301 w/ 5 gallon tank, PN 30-3303 full kit without tank) has a molded-in, barbed nipple to accept a boost hose (up to 40 PSI) and a wiring legend on the back. The Multi-Input controller (PN 30-3351 w/ 5 gallon tank, PN 30-3352 full kit without tank) has an easy-to-remove plug covering the programming dipswitches and a programming legend on the back for the 0-5v and frequency based settings. Both controller housings feature an easy to access integrated fuse and molded mounting tabs.
The wiring harnesses for AEM’s Water/Methanol Injection kits are terminated with a positive-lock connector on one end and have color-coded wires to ease installation. Both the power and ground wires for the pump are included in the harness which simplifies the wiring process and eliminates any chance of the pump accidentally activating from a short in the system. An additional wire is included for adding an optional on/off solenoid to stop fluid flow when the system is inactive.
The controllers for AEM’s Water Methanol systems include an integrated “Boost Safe” output feature that monitors the entire injection system and triggers a ground signal via an output if it detects a voltage-related error (short, bad connection, broken wire, overheated pump, high or low voltage signal, etc.), allowing users to define their failsafe strategy from something as simple as flashing a warning light to more advanced strategies like pulling boost or ignition, or switching fuel maps on a standalone engine management system. Combined with the integral and highly accurate conductive low-fluid switch in the tank, “Boost Safe” can also put your engine in safe mode before the system runs dry. This exclusive feature is found only on AEM Water/Methanol Injection Systems.
AEM’s internally-bypassed water/methanol injection pump does not cycle on an off and provides quiet, smooth operation. It features robust construction including integral hose fittings, EPDM seals and a Santoprene diaphragm that provides consistent and reliable fluid delivery.
AEM’s Diesel Water/Meth systems are available with or without a low-profile 5 gallon tank. The 5 Gallon tank includes a high-tech conductive low fluid level indicator with a positive lock connector and color matched wires to the wiring harness, and baffles to reduce fluid slosh.
AEM includes two precision-machined billet injectors in its Diesel Water/Methanol Injection kits that feature an integral check valve to prevent unintended fluid flow. Three billet injector nozzles are included for matching water/methanol flow to an engine’s horsepower output (see chart below).
AEM’s engineers spent extensive time revamping the HD water/methanol controller’s flow control strategy for a more linear flow output delivery. This means that the flow delivery better matches an engine’s need for water/methanol injection, which further improves charge air cooling and reduces EGTs.
Water/methanol’s “liquid intercooling” effect on turbo Diesel engines can reduce air charge temps by as much as 100 degrees, and deliver a more oxygen-rich air charge.
In addition to cooling air inlet temps, as the water absorbs heat in the combustion chamber and converts to steam, the steam’s expansion rate increases the mean effective cylinder pressure without causing dangerous pressure spikes. This effective increase in cylinder pressure combined with methanol’s promotion of complete combustion allows your Diesel engine to burn fuel more completely. When fuel is being burned more completely less is wasted, which can increase fuel economy.
Because Diesel vehicles using water/methanol injection burn fuel more completely, less un-burnt fuel is present in the exhaust manifold where it can flash ignite to increase EGTs and create particulate matter (soot). Water/methanol injection eliminates this secondary combustion of raw fuel in the exhaust manifold to reduce EGTs by up to 250 degrees, and reduces harmful particulates to extend engine life (and that expensive particulate filter).
|H2O Injection Pump||Included|
|Boost Pressure Reference Switch||Included|
|Reservoir Capacity||5 Gallon|
Specifications and verbiage provided by AEM. Copyright © 2014 AEM Electronics.