Re: Piggyback Sytem, maybe standalone?
Well, I am planning (hoping) to run the stock injectors. I have good liquid filled AutoMeter Pro- series gauges: Vac/Boost, Fuel Pressure, and Wideband & heated AFR - all 2-5/8" face. I have a Aeromotive pump and Boost compensating fuel pressure regulator. Without a custom ECU I am able to turn the fuel pressure up so much that the engine smokes, chokes and is clearly smog illegal even under boost. So I theorize that the stock injectors have the ability to flow sufficient fuel if I adjust the fuel pressure. Then I am hoping that with the new additional ECU that I will also be able to adjust spray times and have even more control.
I am only running a 6 psi spring in the wastegate. As I get more control, mapping experience, and saved maps, I am interested in increasing boost in the future -safely and slowly.
I also theorize that a fogger nozzle for enrichment fuel , threaded right into thee plenum center, could be jetted (adjusted) such that a fifth fuel injector signal 'ON/OFF" could be run through a nitrous solenoid and wired to come on only under boost conditions. ...I hope to run a small nitrous system also in the future, to overcome boost lag time, so enrichment fuel and nitrous solenoids involved in a wet system will be readily available. -I'd have NOS already, but I can't find a place locally to refill bottles.
Please tell me more about your car.