John O'Cain wrote:

I think that some of you guys must be kidding???  Think about the

enormous

expansion and increased compression created in your cylinders when that
water explodes into all that POWERFUL STEAM. You remember when we used

water

injection in jet engines to increase the thrust. Jet engines don't

capture

that enormous increase during compression as do piston engines. That

water

is injected after the turbine wheel and expansion is passed on down the
exhaust pipe.You'll be lucky if you don't blow the tops out of every one

of

your pistons.

Bob Moore wrote:

Well......,  I beg to differ on the subject of water injected jet engines,
being an old
"water wagon" pilot from PANAM.  The water was injected into either the
diffuser
(area just before the burner cans) or into the compressor itself.  At least
that is what
my old P&W powerplant manual says.  The primary purpose of the injected
water
is to cool the inlet air through the "heat of vaporization" process
permitting between
10% and 30% increase in engine thrust.

Bob Moore

 
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