Originally Posted by
cougar gt-e
Depending on the engine, the temperature and the rpm it can vary from you not noticing anything to a loud BANG!
If the engine is hot, most of the water will vaporize before it gets into the combustion chamber. Remember it's under vacuum in the intake manifold and the manifold is about 200F-220F depending on engine load, outside temps and that sort of thing. Now, if the engine is cold and fairly small and running at idle, you can have an issue pretty quick!
I don't know what would happen with the stuff added to the water. The caustic or the baking soda. No idea what would happen to the engine from them, but that would be more of a concern.
The worst issue would be if your hho system's mount broke and it inverted so that liquid only was allowed to all go out. You should be able to mount it and run the lines to the carb such that it does not have enough slack to allow that to happen.
packer fan