Originally Posted by
Jaxom
Newer vehicles rarely use engine vacuum for much of anything. Ventilation controls have gone to servomotors and everything on the engine is electronically controlled via the PCM, with a few exceptions. Most cars still use vac boosters for the brakes, but as stated the majority of diesel brake boosters are hydraulic or electro-hydraulic systems.
Belt-driven or electric vac pumps are the way to go. They eliminate the issue of changing vacuum levels due to engine loading (which is highly counterproductive since engine vacuum is lowest when you need the most HHO.) This issue is one reason I am firmly against using direct manifold vacuum to boost production in an HHO cell.
I second! (or third- whatever)
Give a man a match, and he’ll be warm for a minute, but set him on fire, and he’ll be warm for the rest of his life.
2000 Pontiac Grand Prix GTP 3.8L SII S/C'd
15%-20% MPG increase at 1.5 Amps
2000 Jeep Grand Cherokee Limited 4.7L V8
No gains.