Why 600 AMPS? I have seen them work off of alternators on econo-boxes before. The only thing I would be concerned with is feeding enough gas into the engine to make a dent in the MPG. I figure using a bigger one would do the job.

 

The more electricity you put in the moreHHO you get out. Right now, the technology is too new. Not efficient enough to make any legitimate MPG improvements. Now if you could put that kind of current into it and somehow keep it cool, you would be able to make some legit HHO gas and actually get some good results. They did this on mythbusters once, and this idiot at work put one on his car. SoI started reasearching it A LOT(mostly to make him look like an a$$)and though it does work, the ammount of power you get out of it isn't enough to compensate for the power you put into it.

 

What MPG improvements is he getting? What did he do to his car to adjust the spark and fuel?

 

Well the idiot at work claimed that he is getting over 100% increase in MPG on his 5.0L Lincoln town car, and about 70% better MPG on 2 tow trucks. TOTAL BS...

There is a million dollar challenge out there for anybody who can prove that their HHO system consistently improves MPG by 25% or more. Needless to say, nobody hasmet the challenge...