Pure Distilled Water

[ricekikr]

I understand the benefit of 50/50 at lower boost. But how come most people still run 50/50 when boosting 25+psi (I assume this is high boost)?

I have a 97 Audi 1.8t, currently boosting it 20psi stock block. I'm gona be building up the block in the next couple of months and plan on water or w/m injection and increasing boost to 25+ (probably around 30psi).

I'm really confused because most people use 50/50 and make power, never seen anyone use pure water, even though it costs less, should make more power, enables us to run shit loads of timing/boost and actually use less gasoline.

Questions:
1. So which will produce more HP? Pure water or 50w/50m or pure meth?
2. Why even use meth when pure water (from what I read) has a lot more benefit?

TIA