Yes, I remember them.
I had one on a Subaru "Brat" that I was running around in circa 1983 or so. The
car had a Rajay turbocharger kit installed (it was the '80s, turbocharging was
big!), and part of the kit included a water injection system that operated by a
switch on the intake manifold sensing boost pressure. You had an underhood
waterbottle (made of glass) that you kept filled with distilled water. There
was a screen on the fill neck to filter the water, but anything smaller than a
sparrow got in the tank.
When you stepped on the gas, the boost pressure went up and the water injection
kicked in.
The car went pretty good for a POS, and never pinged unless the water ran out
and was a fun drive until someone you knew saw you in it. Interestingly, off
boost the car got better mileage then before the kit was installed. The turbo
mixed the gas/air a little better I think.
I sold the car after a couple of years, and the kid that bought it discovered
that he could increase the power delivered by turning the waste gate screw in.
Eventually he blew the engine up.
Peter S.
B9471799
Tiger289@aol.com wrote:
> Doug,
> In the 70's there was a water injection system that was very simple
> and believe it or not actually worked quite well. I wonder if someone is
> still making these? Does anybody remember them?
> Andy (San Diego)
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