I'm interested in attempting HHO on my 04 Subaru WRX. I think I understand the general mechanics and physics at work with running HHO, but am finding some conflicting information.
As I understand it, with HHO you save gas by leaning out you A/F ratios with HHO and gain horsepower by advancing the timing, and getting ignition sooner in the stroke because the HHO allows for faster burn. Am I right so far?
Assuming the above is correct, how do change the timing? Will I need a new ECU, something like ECUTek or UTec ECU? My stock ECU is very controlling of the timing and its very difficult to change it even with engine management, this may be a specific problem to my car, not sure.
Also where do I tap the HHO, do I run it to the intercooler or the intake manifold, and if so will I have problems overcoming the pressure from the boost to pump in the HHO. Or do I tap it pre turbo, in which case how do I ensure that the system doesn't accidently pump water into the turbo.
Also any general tip for getting started would be help full, and tips for building and installing a system.
And anyone with info specific to WRXs STis or Subarus, or Force Induction cars in general.
Don't know if this info is relevant but I've got an '04 WRX with Stage 2 XTP engine map, 3" catless downpipe, 3" catless cat back, catless uppipe, and ported throttle body and intake. I also plan on changing the headers soon.
Thanks for any help.