Re: Pure Distilled Water
 

Power and engine speed have a lot more effect.

If you are making 500bhp and turning 8000rpm for example, the more power and more rpm the harder it is.

Low power and low engine speed can tollerate more as a rule.

Re: Pure Distilled Water
 

Especially higher rpm, I would think.
I run about 7000 rpm and make ~ 495 bhp.

Re: Pure Distilled Water
 

There is a GREAT book around if you look on Amazon called How to select and install TURBOCHARGERS by Hugh McInnes, circa 1971! (the genuine & by far the best FIRST book on turbocharging).

It is excellent for Turbo historians and enthusiasts, though probably boring to some it has real pioneers contributing to it in the early days of turbocharging and some real awesome projections and insights into turbocharging and its effect on the modern performance world, racing to street cars.

You will find in it excellent paragraph on water injection and also contributions from people who are the god fathers of this stuff, there is also quotes to testing of this exact topic as well :)....... there is other super interesting items on real HP and how to measure it! just to name a few. Take a look around there are not many copies of it available anymore and its easily confused for later version, its pretty expensive a but a real good read on this topic alone.

Re: Pure Distilled Water
 

So it's out of copyright? Perhaps a scan of the pages on water injection would be good to see if so hard to find!