Why water injection?

[Steve Ciciora]

> From owner-diy_efi-outgoing at coulomb.eng.ohio-state.edu Wed Jun 12 14:58 MDT 1996
> From: ptimmerm at mashtun.JPL.NASA.GOV
> Date: Wed, 12 Jun 1996 08:52:20 -0700
> To: diy_efi at coulomb.eng.ohio-state.edu
> Subject: Why water injection?
> 
> 
> 
> >  Could someone please enlighten me as to why you would run water into 
> >  your engine.  How does this stop knocking ?  Is it some type of carbon
> >  clean while you drive ?  Does it increase power ?  etc, etc.  I have 
> >  only heard about it, but know nothing about it.
> >    
> >    Dan        dzorde at aesprodata.com.au
> 
> The short and sweet answer is more power. This is an noticable
> improvement.  I use 30-70 mph tests in 3rd gear.  I was running
> 9.3's, and have dropped that to 8.7's with water injection.
> Note that this test uses of off cam off turbo portion as well
> as the higher rpm regions.
> 
> In a little more detail, water evaporation densifies the air
> going into the engine, steam provides a powerful antidetonant,
> and the engine can run cooler.  With forced induction, this 
> means you can then turn up the boost for yet more power.
> I plan on running at 18 psig with a 7.0:1 compression engine,
> giving about 275 hp out of 2.15 liters.
> 
> 
> 
  But make sure you don't run out of H2O or your water injector gets
clogged!!!  Didn't John DeAmond have this happen, with a spectacular
firey engine melt down?
-Steven Ciciora