AEM Water Methanol Injection Kit (PETROL)
AEM Water Methanol Injection Kit (PETROL)
AEM Water Methanol Injection Kit (PETROL)

AEM Water Methanol Injection Kit (PETROL) V3

Brand: AEM
SKU: 30-3350
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AEM Petroleum Water Methanol Injection Kits are mainly suited for forced induction (supercharged or turbocharged engines) and is a proven means for effectively reducing engine inlet air temperatures as well as suppressing harmful detonation.

Enables power gains of up to 20%, reliable boost increase and advanced ignition timing without using high octane racing fuel. AEM’s Water Methanol Injection Systems also utilize the most robust hardware combined with more advanced features than any other comparably priced water methanol system.

For optimum results AEM recommend to run an AEM In-line Water Methanol Injection Filter (P/N: 30-3003). For additional insurance against unintended flow, particularly when the pump and tank must be installed higher than the injection nozzle, AEM recommend adding the optional AEM High Flow Low Current Water Methanol Induction Solenoid (P/N: 30-3326).

AEM Petroleum Water Methanol Injection Kit types:

  • 35PSI - for forced induction engines up to 35PSI of boost
  • 200PSI - for ultra-high boosted engines above 35PSI, or high compression NA engines

Robust, Easy to Use Controller Design

AEM's controller design (35PSI Boost Dependent Kit & 200PSI Multi Input Kit) 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 controller housing for mating to the redesigned wiring harness’s positive-lock connector. The Boost Dependent controller housing has a moulded-in, barbed nipple to accept a boost hose and a wiring legend on the back. Both controller housings feature an easy to access integrated fuse and moulded mounting tabs.

The 35PSI controller has an on-board manifold absolute pressure (MAP) sensor with a moulded-in nipple for a boost hose pickup.

The 200PSI controller is a multi-use controller and works with either an external 0-5v voltage-based external MAP sensor, a frequency based input for Injector Duty Cycle (IDC), frequency-based mass airflow (MAF) or a 0-5v voltage-based MAF.

Reduce Air Inlet Charge Temperatures

The term “liquid intercooling” with water methanol injection refers to a highly atomized mist of water methanol that is injected into the airstream and begins to evaporate. As it does, this evaporative effect reduces air charge temps by as much as 100 degrees, and delivers a more oxygen-rich air charge.

Reduces Detonation (Knock)

Water absorbs heat, and methanol is a cool burning, anti-knock rated fuel. When combined and introduced into the inlet stream, they can effectively increase the engine’s anti-knock index so you can reliably increase boost pressure and advance ignition timing using pump gas.

Reduces Carbon Deposits

Modern engines are fitted with Exhaust Gas Recirculation (EGR) devices for emissions control which tend to promote heavy carbon build up inside the air intake. This carbon build-up can create ‘hot spots’ in the combustion chambers that can cause detonation. Water methanol injection has a ‘steam cleaning’ effect that reduces this carbon build up, and in some cases can increase fuel economy.

Innovative Injector Design Delivers Faster Cooling with Less Fluid Used

AEM's breakthrough injector design uses unique Swirl Generator Technology that improves atomization to deliver faster inlet temp cooling and uses less fluid to maintain inlet air cooling. 3x sized three swirl generators are included with each kit that deliver 250cc, 500cc, and 1000cc of flow, as well as the AEM Water Methanol injector.

Heavy-Duty Waterproof High Pressure Injection Pump - Safe for Engine Bay/Frame Rail Mounting

AEM’s internally-bypassed water methanol injection pump is waterproof and safe for mounting in locations that are exposed the elements. It does not cycle on and 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.

Low-Profile 5.2 Litre Water Methanol Tank

AEM’s water methanol injection kits come equipped with a compact 5.2Litre/1.15Gallon tank that features an anti-starvation reservoir. A very accurate, conductive low level fluid sensor is also integrated into the tank and features a positive lock connector with colour-matched wires to the wiring harness.

The sensor eliminates any chance of incorrect readings due to interference from debris.

Simplified Wiring

The wiring harness is terminated with a positive-lock connector on one end and has 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.

Revised Flow Control Strategy for More Linear Fluid Delivery

AEM’s engineers spent extensive time revamping the 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 optimizes charge air cooling and detonation control.

Integrated Boost Safe Feature

Includes 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 only found on AEM Water Methanol Injection Systems.

Kit includes:

  • 5.2 Litre/1 Gallon Tank (with anti-starvation reservoir, integral conductive low-fluid sensor and positive lock connector)
  • Heavy Duty Waterproof High Pressure Injection Pump (Safe for Engine Bay/Frame Rail Mounting)
  • 3x interchangeable injector nozzles (250cc/min, 500cc/min & 1000cc/min)
  • Precision Machined Billet-aluminium Injector With Integral Check Valve
  • Water Methanol Controller & Easy Plug-in Harness
  • 20ft of Water Methanol Injection tubing
  • Hardware for installation


  • Delivers Faster Cooling with Minimal Fluid Used Compared To Previous Versions
  • 3x Interchangeable Injector Nozzles (250cc/min, 500cc/min & 1000cc/min)
  • Precision-machined Billet-aluminium Injector With Integral Check Valve
  • Heavy-duty Smooth & Quiet High Pressure Injection Pump
  • LED Dash Light For System Status & Low Fluid Warning
  • Low profile 5.2 Litre/1 Gallon Water Methanol Tank
  • Easy Installation (Simplified Wiring)
  • Integrated Boost Failsafe Feature
  • 20ft of injection tubing included
  • Reduces Air Inlet Charge Temps
  • Robust, Easy to Use Controller
  • Reduces Detonation (Knock)
  • Reduces Carbon Deposits

Important Safety Notice Regarding Methanol

AEM Water Methanol Injection Systems are chemically compatible with a mixture of water and methanol, which we strongly recommend does not exceed a concentration of more than 50% methanol. In addition to inherent dangers of using 100% methanol, doing so will damage the system's flow sensor and void the warranty on this component.

Methanol is a toxic and highly flammable chemical. 100% Methanol ignites easily and burns vigorously with an almost undetectable flame. Methanol can be absorbed through the skin and even small amounts can cause blindness or even death. Using this fluid at high pressures, without dilution, in an under-hood environment with nylon lines and push-to-connect fittings is very unsafe. The performance advantages of using greater than 50% methanol concentrations are small, if they exist at all. However, the safety issues are very real and far outweigh any perceived benefit of running high concentrations of methanol.

Both Rival Motorsport & AEM hold no responsibility for any damage, personal injury or any costs that result from the misuse of this product, including but not limited to injury or death caused by the mishandling of methanol.

AEM Water Methanol Injection Kits are for race use only and not for highway use.

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