No...water/meth injection increases the compression ratio in the cylinder and the methanol is alcohol, when injected the water raises compression for more power,
No.. steam takes room which lessens the amount available for air/fuel. This actually reduces cylinder pressures and thus power. However, the cooling effect tends to offset this, and the other benefits like the ability to add boost, timing, and/or compression more than make up for it.The water is turned to steam by the sheer head put off by the manifold which when it is compressed it is less compressible then air, which helps add room/volume to the cylinder, so on the compression stroke it causes a higher cylinder psi, typically about 10-20psi over the stock compression
What? Rebuild the engine after using water/meth? I think you are confusing this with 'war time boost' which was basically overboosting the engine to get the hell outta the way. Had nothing to do with the injection other than it helped the engine live while overboosting. The injection of water/meth in and of itself did not make the power.Alot of piston fighters used water/meth injection to add 500-1,200 horsepower to their engines, they couldn't use it for long though because after your ran the injection you literally had to rebuold the engine. butthat is because they would turn the Merlin for example from a 1,500HP to a 2,200+HP engine.
Its simple... water/meth injection allows you to run more timing, boost, and/or compression. By itself it does not increase horsepower.