i rectum you might have to run an oversize mj and the accelerated air flow might just bring in enough fuel. just conjecture of course
The reason I asked is because Nitrous Oxide is not flammable. The advantage is that it is something 40% oxygen by volume, as opposed to around 18% for atmospheric air, so what it does is increase the oxygen content of the air part of the fuel air mixture. The problem with that is that adding oxygen by itself makes the engine dangerously lean, so extra gasoline is required to go with the extra oxygen. In a car engine, a line is attached to the pressure side of the fuel system, and the fuel and Nitrous are controlled by a pair
In researching it myself (because no one would answer my question), I found this:
...by injecting nitrous into the airbox, the engine consumed only the nitrous that was needed when it was needed, and by increasing pressure inside the carburetor float bowl at the same time, extra fuel could be delivered simultaneously. This was the only way he could produce consistent and reliable results using nitrous on a snowmobile ....Rejetting is not required, the extra fuel pump and fuel solenoid are eliminated, and the bottle heater can be eliminated (nitrous and fuel delivery both change with bottle pressure)
Apparently, they run bottle pressure into the float bowl to force more fuel out through the main jet than would normally be drawn through it. Functional, I suppose, but it seems a bit haphazard somehow.