Snow Performance Stage 1 Boost Cooler Methanol/Water Injection SystemSnow Performance Boost Cooler Stage 1 Water Methanol Injection Systems In gasoline engines, as with any intercooler, Stage 1 Boost Coolers suppress detonation, so more power producing boost and timing can be utilized. Water, with its high latent heat of vaporization, cools the intake charge and combustion. Methanol cools the charge and combustion, but also acts like an extremely high octane fuel (some researchers claim as high as 120 octane) and adds