Snow Performance SNO-81083 Low Pressure Safety Switch Nylon 35-100 PSI Universal

Vehicle Fitment

• Universal - compatible with any Snow Performance water-methanol injection system using nylon quick-connect (QC) tubing
• Also compatible with any third-party inline W/M injection system that uses nylon tubing with QC-style fittings
• Not compatible with stainless steel braided -4AN line systems - see SNO-81083-BRD for that application

Fitment Notes

• Nylon tubing / QC-fitting version - designed for Snow Performance systems running nylon injection lines
• Installs inline between the W/M pump and the injection nozzle(s) to monitor line pressure
• All necessary QC fittings for nylon line installation are included
• Can be wired to any aftermarket EFI system, boost controller, or stand-alone ECU to trigger automated responses (boost cut, timing retard, etc.) on pressure loss

Features

• User-adjustable pressure switch (35-100 PSI) allows tuners to set the exact low-pressure threshold at which the failsafe triggers
• Monitors injection line pressure between the W/M pump and the nozzle(s) - detects pump failure, broken lines, clogged nozzles, or any other condition causing pressure loss
• High-intensity LED provides immediate in-cabin visual alert to the driver when W/M system pressure falls below the set threshold
• Included Snow Performance W/M pressure gauge allows real-time monitoring of injection system pressure for tuning and diagnostic purposes
• Switch output can be wired to aftermarket EFI, standalone ECU, or boost controller to automatically cut boost or retard ignition timing when injection fails - protecting the engine from detonation
• All necessary QC fittings for nylon line connection are included - direct plug-in installation with no special tools required

Specifications

• Brand: Snow Performance
• Part Number: SNO-81083
• Product Type: Water-Methanol Low Pressure Safety Switch
• Pressure Switch Range: User-adjustable, 35-100 PSI
• Line Type: Nylon (QC Quick-Connect fittings)
• Alert Type: High-intensity LED
• Application: Universal - W/M systems with nylon tubing

Included Components

• 1x User-adjustable W/M pressure safety switch (35-100 PSI)
• 1x Snow Performance Water-Methanol pressure gauge
• 1x High-intensity LED indicator light
• All necessary QC fittings for nylon tubing installation
• Note: For stainless steel braided -4AN line systems, order SNO-81083-BRD instead

Product Description

The Snow Performance SNO-81083 is a Water-Methanol Low Pressure Safety Switch designed for forced induction applications running Snow Performance (or compatible) W/M injection systems with nylon quick-connect tubing. It is an essential failsafe for any engine relying on water-methanol injection for detonation control and charge cooling - the moment the injection system stops delivering fluid at the correct pressure, the SNO-81083 immediately alerts the driver and can automatically cut boost or retard ignition timing before engine damage can occur.

Installation is straightforward: the pressure switch mounts inline between the W/M pump and the injection nozzle(s) using the included QC fittings, the pressure gauge provides real-time monitoring of line pressure, and the high-intensity LED mounts in the driver's line of sight as a visual warning indicator. The adjustable pressure threshold (35-100 PSI) allows tuning to the specific operating pressure of the injection system. The switch output wires directly to an aftermarket EFI system, boost controller, or standalone ECU to enable automated engine protection. For stainless steel braided -4AN line setups, see the SNO-81083-BRD variant.