Re: Water / Methanol Injection - for AMC -

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: farna@xxxxxxx
" 
" I checked some of this out. The Mother Earth News (MEN) article is
" promising, but old. I looked at all the kits available. Average price
" seems to be around $250. Part of the problem with something like the
" MEN described system is good atomization of the water into vapor. It

'fog' would be more accurate here than 'vapor' imho.

" can't be done except under pressure -- vacuum pulling water in leaves
" the droplets too large. So a high pressure pump is needed to spray the
" water in just like it's needed for fuel injection. Most systems use a
" 100 psi pump, which is $75-$100. 
" 
" Water injection (WI -- with or without methanol) would work very well
" for a turbo system when you can't run an intercooler, and costs would
" be about the same or cheaper than an intercooler installation, or where
" you really wanted to increase boost.

old aircraft trick - spray the water fog into the eye of the
compressor.  the heat of compression evaporates the fog, and
evaporation absorbs the heat of compression which improves compressor
efficiency [eg. pressure ratio].

otoh the fog droplets tend to erode the metal of the compressor blades
though...
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen

adh@xxxxxxxxxxxxxxxxx                       and think what none thought