Water + Methanol = Power?

Fast Friday Volvo Performance and Tuning

Humidified combustion air lowers the peak combustion temperature by hundreds of degrees. This is important as this cooling affects not only the incoming air charge but also any residual pockets of exhaust gas from the previous combustion cycle that can be a trigger for pre-ignition. Adding water/methanol injection to an engine in the proper amount is akin to running higher octane fuel, the increase in ignition timing is so significant that it’s similar to running high octane racing fuel (100+).