Hey guys,
I have been working on this project for wa too long. But I think that I got it, this is my 3rd or 4th one, all of the others had something that I really didn't care for.
It seems that the 5.7 engine will take a good bit of HHO to make the project worth while. I am not sure at this point how much return I will realize, (If any) but after all of the research and work my hopes are high.
First I would like to say that the only major sensors I feel will have be manipulated is the AFR sensors. I believe that this is acheivable using a AFR sensor calibrator from the guys at URD. I haven't installed mine yet but but the sensor is computer controlable from a lap top while driving.
My generator is an 8 cell tube type generator wired in a modified series configuration. That has as produced a HHO volume of 4 Liters Per Minute. But I have tweaked it a little since then and am hoping for more.

My cells are made of 4 stainless steel tubes each measuring 4" long and 1.5",2",2.5" and 3"

This is a bottom shot I drilled, tapped and used 1.5 X 1/4-20 nylon bolts to hold the bottoms

For the top connection I used #10 ga 304 stainless steel wire to hold the top and make the connections.

The housing is made from 7/16" Polyethleyne cutting boards that I bought from walmart. I cut them on the table saw and used clear silicone and screwed them every 1.25" to hold the together.
This pic is on my first time firing the generator up using only 35 amps. To say the least I was excited.