I am not seeing the higher DC% with N20 "on". My WOT w/o N20 in 3rd gear of 4(manual) is 75% DC 13.0/1 A/F.

With N20 on I saw 65-70% DC but I believe I ran it longer in total seconds of WOT and saw higher MPH as expected. Also the A/F was 13/1. It seemed to pull better (75HP shot) but not ***** out.

Maybe it is my plumbing for fuel. I have the Aeromotive reg feeding one outlet to N20 fuel and another to the injectors. Maybe my TPI pump can feed both sides adequately? I expected DC to exceed 85%?

 

The EBL N2O control logic is for wet systems. No additional fuel is added via the injectors.

There is spark retard for when the N2O is active.

RBob.

 

Let me rephrase the Q. Should not I see a higher DC% when N20 "on" as it is competing with injectors for fuel ? I see no diff in DC % ?

 

If there isn't enough fuel to feed both the injectors and the N2O system fuel nozzle the fuel pressure will drop. There won't be an increase in injector DC% as hopefully the ECM is in PE mode and there isn't any fuel trim correction.

RBob.