About 10 or 15 years ago Edelbrock made a water injection system to prevent
knock and it worked well. The military used water injection to boost power
on some WW2  fighters.
I called Edelbrock a few years ago to see if they still had this unit
availible the nice lady that I spoke with explained that the RV crowd had
taken to the water injection idea. They also hooked it up to the water
supply on the RVs and turned the injection to the max. Only problem was the
engines in the RVs would sieze up when they spent the winter with all that
water build up in the crankcase. So when the law suits started production
stopped
the injection would need to be limited to higher load conditions like full
throttle or a push button on the dash to give that extra boost. If you could
find a way to have it feed the engine on the highway at speed that would be
nice. a vacuum switch or an throttle switch might work

steam powered vanagons I like it

going faster miles an hour with the radio on
I remain
Bob Donalds
Boston Engine

----- Original Message -----
From: "Frank Grunthaner" <FrankGRUN@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, July 27, 2004 3:44 PM
Subject: Re:       Experiment

In a message dated 7/27/04 11:09:15 AM, JK@PROJECTDESIGN.COM writes:

> Vanagonians,
>
> I want to experiment (just for fun) with doing water injection, such as a
> mister into the intake manifold. Can any harm be done in trying this? I
> can't think of any.
>
> Jim
> '87 GL
>

Jim,

My son (using the moniker "marty") published an extensive set of notes on
the
chemical, physical and mechanical issues regarding fabricating and using
water injection for both turbo and supercharged VW engines on VWVortex.
Search
their archives. He also gave the detailed results of a number of experiments
we
did including the droplet size of the injector system, pulsed or
semi-continuous flow, mixture ratios with methanol or ethanol, etc.

I'm using a similar system on my turbo Audi (that I may finish one of these
years).

Frank Grunthaner