Water/Methanol Injection V2
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© 2020 AEM Performance Electronics
Nozzle Mounting
Select the location where the nozzle will be installed. Nozzle must be mounted such that it is higher than
the tank. Failure to do so may lead to fluid leaking into the intake tract due to gravity or siphoning,
which may result in engine damage. Nozzle must be mounted before the throttle plate. Nozzle should also
be mounted after the MAF sensor, if present. Nozzle must also be mounted after any intercoolers. In most
instances, mounting the nozzle 6–8” ahead of the throttle body provides an excellent combination of air charge
cooling and combustion control.
In most instances, the air charge piping can be drilled and tapped for 1/8” NPT to directly mount the nozzle. If
using thin walled tubing it’s suggested that a bung be welded to the piping. Mounting hole should be tapped
deep enough to allow the end of the nozzle to be nearly flush with the interior of the intake once the nozzle is
fully installed.
Pump/System Check
The TEST push button on the controller module can be used to test the system. Press and hold the button to
activate the pump. The pump speed will gradually increase from zero to full speed within 3 seconds and then
remain full for another 3 seconds before stopping. When the button is released the controller will return to
normal operation.
Add water to the tank and, with the nozzle pointed into a container, press and hold the TEST button. The flow
will start gradually and increase to a steady amount. If this happens, then your system is connected properly.
Check and repair any leaks. Drain the water out of the tank and install the nozzle.
Fluid Compatibility
Under NO circumstances should any hydrocarbon based fuel ever be used with this system. Water and
methanol are the ONLY fluids to be used.
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