To spray or not to spray

'64 Cuda said

I've never used nitrous or been around when somebody was using it, and I have a question. What happens when your bottle runs dry during a run? Are you still feeding the fuel, with no nitrous to support it? Does the engine just sort of load up or foul out because of excess fuel? Or is there some type of pressure switch on the bottle that shuts off the fuel solenoid when the bottle runs out?

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The old system I used just kept feeding fuel to the motor which ended up in an over rich condition and fell on it's face. Like anything you get use to how it feels when everything is working right or not. I could feel it start to nose over so I knew I was running out of nitrous so I would shut off the system. The worst condition is if it goes lean because of a fuel delivery problem. You can also feel this also because just before you start eating parts it really starts pulling, better be quick killing the system if you want to save parts. They do have available low pressure (both fuel and nitrous) switches that will kill the system if the pressures drop below set pressures.


Chuck