[Christian]

Conversely, If I leave the switch on and introduce a 10 amp load I will lose 15-20%? Shouldn't there be a hp/amp chart somewhere?

Sorry but you are confusing things, there is a hp/amp connection, its called watt. 10A x 12V = 120W = 0,16hp

And why don't the manufactures say 15/18/12mph (city,highway,nightime)

Partly because the electrical powerdrain from running light at night is equalled out by the battery during daytime driving, partly because the amps drawn as you can see from above calculation are miniscule compaired to the output of the engine at normal working revs. The drop in revs when you turn the lights on at idle is because the engine produces almost no power at idle.


Sorry if I being obtuse. Anybody look at the plasmatron?

I did look at the plasmatron, and the rest of the info on that page, and it seemed very confused, facts mingled with myth.

Sorry, but I do not see how any of it would work...