let me provide some background:
i have a jetta mk4 (1.9L) and mk5 (1.9L) but now only the mk4 is running on HHO.
mk4 options:
* larger nozzles (205)
* chip
* the modifications gave me 10% more mileage when my wife drives the car
* installed wet cell HHO at aprox. 20amps stable and got 200km extra on the tank with 100% Biodiesel not diesel.
* removed the ecu that was chipped and added the stock ecu and reduced electrolyt to 10amps and lost 100km
* now i am with stock with 15amps and the power is fantastic; you see when i can the chipped ecu i had a lot of power to the redline. Now i have power to the redline but no modified ecu BUT running at 15 amps.
* i do not think I am taxing the alternator at 15 amps.
* my other problem is that if i have power i drive like a madman. of course this is the case because i make my fuel but biodiesel is not good in the cold Montreal winter weather (-35C).
*I am waiting for a dry cell to arrive from
http://www.hho2u.com/Best_hho_dry_cell_design.html
just to test the difference. The seller told me the same thing that volo is not required and even no electronics once the electrolyt is stable.