MY Buick is just not the correct application for water injection,
Yes it is,but only if you inject it into the compressor of your turbo charger. Alcohol injection and water injection should never be compared to each other. Water is able to remove a lot more heat than alcohol,but it must be injected into a much hotter environment to do its job. The good news is that the compressor gets very hot. The Buick community doesn't see this fact as an opportunity to extract more power. If your going to inject an alcohol water mix,this is the only injection site that woks.
Injecting an alcohol/water mix at this location becomes less effective as you increase the amount of alcohol. Alcohol can't work its magic in this environment. It's too hot.
If you inject an alcohol/water mix after the intercooler and before the throttle body,it becomes less effective as you increase the amount of water. Water can't work its magic in this environment. It's too cool. 100 percent alcohol works the best in this location.
Another reason you can't compare the two is because alcohol is a fuel that adds octane and oxygen to the mixture.
I've seen people respond to threads about the fastest cars on 93 octane who are injecting alcohol. A motor running on 93 octane and alcohol injection isn't producing its power with 93 octane. When you inject alcohol you increase octane and oxygen.
Comparing these two liquids is not even like comparing 93 octane gasoline to nitro methane.
Water does things that alcohol can't do in one environment.
Alcohol does things water can't do in another environment.
Put each of them to work for you in their respective applications,but never compare them.