The original system I used was built around a thing called a liquid pressure regulator. This kept the pressure at the injector at 300 psi regardless of bottle pressure. The injector was a small pneumatic piston that pumped fuel using nitrous to drive the pump.
It might have worked for a small shot on a big engine for a short burst . And it was designed for snowmobiles that operate in sub zero conditions.
That said. I found it very inconsistent. I think the fuel volume was to small based on the size of the hose I use now. And I found it delivered nitrous in a vary inconsistent manor. Liquid and gaseous nitrous.
The real; frustration is having no ability to adjust anything. I had to ship the whole system to them and have more fuel added or addressing the issue of lean condition. It seems the system would start out rich and go lean. this would heat up the spark plug tip then pre-ignition would hole a piston.
