Water/methanol injection is used to suppress detonation and to safely allow much greater amounts of boost and/or compression ratios. When implemented correctly it provides benefits very similar to unleaded racing fuel. However, it costs pennies per gallon instead of the typical $12 or more. Furthermore, it allows the tuner to keep the boost turned up all week long instead of only at race weekends.

Water/methanol injection works in three ways. Firstly, when the fine mist is injected into the intake system (after the intercooler), the small droplets absorb heat from the intake air. It takes heat energy to evaporate a substance from liquid state to vapor. The required amount is measured as "latent heat" and the units involved are "kiloJoules/kilogram" (kJ/kg). This means that to convert 1 kg of water at 100 ºC to 1 kg of steam at 100º C, the water must absorb 2260 kJ of heat. This takes time. Methanol requires only 1099 kJ/kg to completely evaporate. Thus, methanol absorbs less heat (cools less), but it also cools much faster than water -helpful in cold weather and with very short intake tracts.

As the tiny drops start to evaporate into gas, it takes additional heat energy to sustain the process. So, the intake charge is cooled further. Finally, the remaining droplets and steam reach the combustion chamber and make the combustion process smooth and even. (The piston is accelerated with a sustained shove vs. a sharp and short "bang".)  The super-heated steam also melts away carbon deposits and eliminates the glowing hot spots which lead to detonation. On top of typical 91 - 93 octane pump fuel, water/methanol injection can raise effective octane to over 100. This allows the enthusiast to daily drive on 100 octane files and more.

Whether you're running huge boost in your VW/Audi or other car, need to tame a nitrous oxide system, or are towing uphill through the mountains in summer, USRT-optimized water/meth systems allow for maximum power output while substantially increasing overall engine reliability.

A 50% proportion of methyl alcohol (methanol) is advised to provide the best compromise of detonation control and increased torque. System installation is straight forward and can be accomplished by anyone who can read a simple wiring diagram.



Product Image Item Name- Price
Boost Cooler Stage 1

Boost Cooler Stage 1

Stage 1 water/methanol injection system for use when basic on/off control is acceptable (e.g. single stage Nitrous Oxide). It's also a great base...
$359.00

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Boost Cooler Stage 2 MAF (2.0l 8VT, 1.8T, VR6)

Boost Cooler Stage 2 MAF (2.0l 8VT, 1.8T, VR6)

The Stage 2 water/methanol injection system (for gasoline-powered engines) includes all the basic parts needed to start making big HP! A full 80% of...
$499.00

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Boost Cooler Stage 2 MAP (TSI/FSI)

Boost Cooler Stage 2 MAP (TSI/FSI)

The Stage 2 water/methanol injection system (for gasoline-powered engines) includes all the basic parts needed to start making big HP! Proper setup...
$499.00

... more info

Boost Cooler Stage 2 VC-50 (all "big turbo")

Boost Cooler Stage 2 VC-50 (all "big turbo")

This latest Boost Cooler® features a very trick gauge style controller. The "VC-50" is equipped with a dual mode/seven color OLED...
$549.00

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Boost Cooler Stage 3 (2.0l 8VT, 1.8T, VR6)

Boost Cooler Stage 3 (2.0l 8VT, 1.8T, VR6)

The Stage 3 Boost Cooler® offers great accuracy and adjustability with a simple digital interface.This system can be used on all VW/Audi EFI...
$699.00

... more info

Boost Cooler Stage 3 (TSI/FSI)

Boost Cooler Stage 3 (TSI/FSI)

The Stage 3 Boost Cooler® offers great accuracy and adjustability with a simple interface. This system can be used on all VW/Audi TSI and FSI...
$849.00

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USRT Stage 11

USRT Stage 11

    One of the most advanced systems on the market, we've married the mighty Cortex EBC and a Boost Cooler Stage1 kit from Snow....
$675.00

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USRT Stage 11 (T/FSI Big Turbo)

USRT Stage 11 (T/FSI Big Turbo)

    Conquer water/meth injection and Low Pressure Fuel Pump tuning with one incredible package. If you've got a big turbo T/FSI, then this...
$949.00

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PeaceKeeper HDS

PeaceKeeper HDS

Eliminate heat soak problems with the PeaceKeeper Heat Defense System . Tune more aggressively. Unlike water/methanol injection , this kit cools an...
$150.00

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Diesel Stage 3 MPG MAX TDI

Diesel Stage 3 MPG MAX TDI

The Snow Performance MPG-MAX™ VW TDi water/methanol injection system provides more power, and excellent fuel economy increases. The The...
$799.00

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