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The Snow Performance 30 PSI Hobbs Switch, manufacturer part number SNO-81081, is a new wiring connectors selected for the exact dimensions and mechanical interface specified by Snow Performance. Confirm the exact part number, dimensions, configuration, emissions requirements, and vehicle application before ordering.
Key Features
- For a variable-threshold switch covering a wider pressure range (such as 2-15 PSI for lower-boost applications), Snow Performance offers separate adjustable boost pressure switch models.
- Automatic Boost Safety Shutoff for Water Methanol Injection Systems The Snow Performance 81081 is a 30 PSI Hobbs switch designed for use with water methanol injection systems where automatic shutoff protection is required when boost pressure drops below the injection engagement threshold.
- A Hobbs switch is a pressure-actuated electrical switch that closes when system pressure reaches the set point and opens when pressure falls below it.
- The 81081 is the Stage 2 replacement Hobbs switch for Snow Performance water methanol injection kits and can also be used as a standalone pressure-activated safety switch in custom injection controller wiring.
- A Hobbs switch is a pressure-actuated electrical switch that remains open (no current flow) below its set pressure and closes (allows current) when pressure meets or exceeds the threshold.
- If the original switch in your Stage 2 kit has failed or been damaged, the 81081 is the correct replacement to restore automatic pressure-based injection control.
Fitment
| Fitment Type | Universal, service-item, or interface specific |
|---|---|
| Required Verification | Exact part number, dimensions, inlet and outlet size, mounting interface, and current Snow Performance instructions |
Specifications
| Brand | Snow Performance |
|---|---|
| Manufacturer Part Number | SNO-81081 |
| Product Type | Wiring Connectors |
| Condition | New |
What's Included
One new Snow Performance component identified by manufacturer part number SNO-81081, plus only the hardware expressly supplied for this exact configuration.
About Snow Performance
Snow Performance develops Boost Cooler water-methanol injection kits, pumps, controllers, nozzles, reservoirs, fuel-system hardware, and supporting components for street and competition vehicles.
Related Snow Performance Products
- Shop all Snow Performance products
- Snow Performance Replacement 2-15 PSI Boost Switch (for SNO-201)
- Snow Performance Low Level Indicator Switch (Unmounted)
- Snow Performance Low Pressure Safety Switch (Nylon Tubing)
Frequently Asked Questions
How do I confirm Snow Performance SNO-81081 fits?
Match the exact part number and every listed year, make, model, true submodel, engine, emissions, exhaust, and factory-equipment requirement.
Are similar-looking Snow Performance parts interchangeable with SNO-81081?
No. Dimensions, pipe size, mounting geometry, calibration, emissions status, finish, and included hardware can differ between Snow Performance part numbers.
What is included with Snow Performance SNO-81081?
This listing includes the exact new Snow Performance component and only the hardware expressly supplied for this manufacturer part number. Required companion parts, tools, fluids, and tuning are not included unless stated.
Installation
Follow the current Snow Performance instructions for this exact part number. Confirm system pressure, controller input, nozzle sizing and placement, reservoir and pump location, line routing, wiring protection, leak testing, failsafe strategy, fuel compatibility, and calibration before operation. Professional installation and tuning are recommended.
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