Re: H20 injection/ wasTruck Intercooler?

["Jason Gray" <jason510@worldnet.att.net>]

>Well, I've always thought of water injection (by which you mean
>water sprayed on the intercooler or into the intake?) as sort of
>a bandaid for poor intercooler system design.  What happens a
>half-hour into the "prolonged period" when you run out of water?.
>
>Eric Fahlgren


 If you drove around on public roads at 30 minute intervals at high turbo
boost levels you would eithor be dead or in jail. 10-20 seconds of maximum
boost is enough to propel a high performance turbo car to speeds greatly in
excess of safety and legal limits!  You only need the water injection while
at maximum boost (short periods of time) so consuption of the H2O is very
low. I go through less than 1 gallon of H20 per tank of gas so just have to
remember to top off the injection reseviour in approximatly the same
interval as fuel fillup.
Factory cars dont rely on water injection because the general public is way
to lazy to remember to add the water regularly. There was a factory
turbocharged oldsmobile in the early  60s and they all blew the motors when
the owners forgot to refill water.

The benefits of H2O injection are twofold. 1) you inject water directly into
the turbo compressor and it turns to steam adsorbing latent heat from the
compressed air. 2) when the steam is introduced into the combustion chamber
it slows the flame front travel thus preventing detonation and allowing
increased boost levels (and more HP). Water is a very effective
anti-detonate (like adding octane boost products or methanol or tolulene to
gasoline).
  Too much water will lower the power (by drownding out the combustion flame
travel) but just the right amount works wonders. The vaporized H2O also
"steam-cleans" the carbon deposits from the combustion chamber walls
preventing carbon hotspots and raised compression that contribute to
detonation.

Later-
Jason K Gray
Wasilla Alaska
'87 4000cs Q
'73 2-door datsun 510 L16T
510 website http://home.att.net/~jason510/
Those are not oil stains on my garage floor, they are bluebird droppings!