Description
Trusted by motorsport enthusiasts and performance drivers worldwide, SNOW Performance delivers proven water/methanol injection systems built for increased performance, reliability, and durability. Whether you’re chasing better performance on the track or smoother, more efficient driving on the street, SNOW Performance gives you race proven technology you can rely on under all conditions.
Snow Performance Boost Cooler Water/Methanol Injection Systems enable a power increase of up to 10-25% in turbo and supercharged engines without thermally overloading the engine. With precise cooling, the charge air temperature drops by up to 60°C, significantly reducing the thermal load on the engine, especially in tuned or high performance engines. From the adjustable engine load point (including start boost pressure and fuel injection amount), finely atomised water or a water/alcohol mixture (methanol or ethanol) is precisely injected directly into the hot intake air. This instant evaporation creates a highly effective charge air and intercooling system, reliably preventing knocking (also known as “pre-ignition”). The effect is proven to match the knock resistance of 116 octane race fuel, allowing your engine to utilise higher boost pressures and more aggressive ignition timing without sacrificing performance or durability. This Stage 3 EFI Water/Methanol Boost Cooler Kit increases power and torque while simultaneously reducing thermal load on already modified engines and improving fuel efficiency by up to 5–15%. The system is optimal for engines with traditional manifold injection (EFI), not suitable for direct injection engines.
The award winning Boost Cooler Stage 3 EFI control unit from SNOW Performance regulates the water/methanol injection quantity progressively to the boost pressure and the fuel injection quantity. The desired start and full injection times are simply entered in the enclosed LCD screen. The controller then generates a 2D injection curve for the optimum injection quantity in all load ranges. By using boost pressure and fuel injection valve timing, the Stage 3 controller enables very precise water/methanol injection quantity regulation. In addition to the primary injector, another injector, independent of the primary injector, is optionally controlled by the control unit. This ensures optimal use of cooling and power in all load ranges of the engine. The progressive injection of water/methanol based on the 2D mapping created is very precise and has a positive effect on cooling and engine performance over the widest possible engine load range.
All the necessary connection materials are included for a smooth installation experience. The detailed, easy to follow installation manual, with clear visuals and a structured approach, ensures you can set up the system quickly and without complications.
This Stage 3 EFI Water/Methanol Boost Cooler Kit includes:
- 1 x High Pressure Diaphragm EPDM Pump, 300 PSI/20bar
- 1 x Boost Cooler Stage 3 EFI 2D LCD Controller
- 1 x Dual Stage Upgrade
- 2 x HyperSonic Water-Methanol Nozzle incl. filter
- 1 x 3l Boost Cooler Water-Methanol Injection Reservoir
- 1 x Low level indicator (includes LED)
- 1 x Nozzle Holder, 90°, Aluminium hard-anodised
- 1 x Installation material and all necessary fittings
- 1 x Installation instructions
Frequently Asked Questions
Why do turbocharged and naturally aspirated engines achieve more power with the Water/Methanol Kit?
The main problem of any internal combustion engine is the thermal load. In nearly all engines, the power is restricted by the temperature in the combustion chamber. If a certain temperature is exceeded, uncontrolled combustion (knocking) occurs. Uncontrolled combustion results in a massive loss of power and engine damage. In a turbo engine, this problem is compounded even further. The intake of the turbo engine heats up strongly in the turbine (through compression and heat transfer of the exhaust gases) and the thermal limit is quickly reached. In conventional turbo engines, this problem is typically addressed with the help of intercoolers.
The performance of a turbocharged engine is therefore directly dependent on the efficiency of the intercooler, as well as the cooling rate of the intake and charge air. The efficiency of intercoolers, however, is constrained by the ambient temperature and the maximum size of physical space constraints. An increase in boost pressure no longer produces more power and the damage to the engine is virtually inevitable. This issue can be solved using the Boost Cooler water injection concept. You can ensure additional cooling of the heated intake air through the injection of a water/alcohol mixture. The great advantage of the Boost Cooler is that the cooling is virtually unlimited in physical terms. That is, if the intake air is too hot, simply increase the injection volume to achieve the required level of cooling. This unique advantage can help fully exploit the capacity of turbo engines and the engine power is not restricted by the thermal limits.
Where can I mount my reservoir and pump?
The pump needs to be within about 60cm (hose length) of the reservoir, and as low or lower than the base of the reservoir. It is a “pusher” pump, not a “puller” pump. In the engine bay, the reservoir and pump can be placed almost anywhere, as long as they are not very close to exhaust heat, or in the path of debris from the road. Be sure that the pump is mounted at the same level or below the reservoir and that the reservoir is not located higher than the nozzle. If the reservoir must be located higher than the nozzle, a solenoid upgrade is required to prevent gravity feed. Boot mounting is also fine, but the pump needs to be close to the reservoir and gravity fed. Lengths of 6-7m of tubing to the nozzle are fine.
Which mixing ratio and what kind of water are used?
Use distilled or demineralised water, you can also use clean tap water when nothing else is available. Use methanol or bio-ethanol or isopropanol, a 50/50 ratio is recommended. This has been demonstrated to be the best for charge/air cooling, excellent detonation control, and safety. Do not use E85 or any other fluid with petrol mixed in, it will destroy the fluid delivery part of your Boost Cooler and instantly void the warranty.
Snow Performance Part Number: SP10315















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