Home > Water-Methanol Accessories > Water-Methanol Injection Controllers

Snow Performance water-methanol controllers are manufactured right here in the U.S.A and can control injection off different variables in a gas/diesel engine. Below is a breakdown of the water meth injection controllers and what variable they operate off of.

Pressure Switch- Turns pump on/off once a certain boost pressure is reached. Adjustable from 1-15 PSI. Recommended for low boost set ups.

VC-20- Fully adjustable variable controller that will progressively command injection between two boost points (start & full). For example, if the start point is set to 5 PSI and the full set to 10 PSI the controller will begin injection at 5 PSI and progressively increase injection volume with boost until it reaches the max injection point of 10 PSI. Fully adjustable between 1-20 PSI. Recommended for all forced induction applications.

VC-50- Fully adjustable variable controller that will progressively command injection between two boost points (start & full). For example, if the start point is set to 5 PSI and the full set to 20 PSI the controller will begin injection at 5 PSI and progressively increase injection volume with boost until it reaches the max injection point of 20 PSI. Fully adjustable between 1-50 PSI and comes with heads up boost gauge/water-methanol controller display. Recommended for all forced induction application.

MAFU (GAS ONLY)- Fully adjustable variable controller that will progressively command injection between two points on the mass air flow (MAF) or manifold absolute pressure sensor (MAP) . For example, if you have a 0-5V MAF sensor and the start point is set to 2.5 volts and the full set to 5 volts the controller will engage injection at 2.5 volts and progressively increase injection volume with the MAF reading until it reaches the maximum injection point of 5 volts. Fully adjustable between 0-5V and all frequency readings. Recommended for all N/A vehicles with a MAF/MAP sensor and EFI vehicles with a positive displacement supercharger.

MCVC (GAS ONLY)- Fully adjustable variable controller that will command injection off of engine RPM and vacuum. Once the vehicle reaches a adjustable RPM point the controller will begin progressively injecting water-methanol based off of engine vacuum. Recommended for all N/A carbureted vehicles.

Stage 3 Controller (GAS ONLY)- Fully adjustable variable controller that will progressively command injection based off of boost & fuel injector pulse witch (EFI) or fuel pressure sensor voltage (DI). Start and full points are adjustable to match what the vehicle is making. Recommended for all forced induction applications.

MPG-MAX (DIESEL ONLY)- Fully adjustable variable controller that will progressive command injection based off of boost & EGTs. Start & full points are adjustable to match what the vehicle is making. Recommended for all turbo diesel applications where EGTs are a problem.

Have a question on which controller is best for your application? Email us at sales@snowperformance.net.


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Snow Performance MPG-MAX Water-Methanol Injection Controller
MPG-MAX™ Controller
Our Price: $399.99
MAFU Controller (MAF/MAP)
Our Price: $229.99
Snow Performance Stage 3 Boost Cooler Water-Methanol Injection Controller Snow Performance Stage 3 Boost Cooler Water-Methanol Injection Controller
VC-50 Controller
Our Price: $299.99
Snow Performance VC-20 Water-Methanol Injection Controller
Boost Switch
Our Price: $34.99
VC-20 Controller
Our Price: $224.99