From: Employee@MilVeh.com
Date: Tue Aug 19 2003 - 10:25:41 PDT
For most operators of gasoline combustion engines, the
power will not come so much from the injection of
water (WI), but from the retarding of predetenation of
the fuel and your ability to run a higher timing
point.
Predetonation is caused by the fact gasoline comprises
of both large molecules and small molecules, in
cheaper fuels you get more large molecules and
conversely higher octane you have more smaller
molecules.
The smaller molecules burn more orderly and smoother.
To duplicate this process the introduction of the h2o
vapor stabilizes the cheaper fuels and you can get
away with higher timing. The cooler air is also
helpful in concentrating oxygen and lowering nitrogen
emmission. But, by itself the water doesn't much more
and too much can stall ignition.
In dielsels with a turbo you get a slighly higher
boost pressure, cleaner exhaust, better fuel
effeciency and slightly more power from a cleaner
burn.
So the results for turbo diesels are probably more
desirable than for gasoline engines. However with
more boost you run a slightly greater risk of blowing
a headgasket. I doubt the older multifuels that have
a marginal head gasket are good candidates for upping
the boost.
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