how important is this to have in a nitrous setup?? wont the viper computer shut the system down if it drops anyways?
plumcrazy said:how important is this to have in a nitrous setup?? wont the viper computer shut the system down if it drops anyways?
Gerald,Snake Bitten said:The fuel safety switch keeps your N20 from spraying, in the event there is not enough FUEL pressure...Lets say your fuel pressure dips (would have to "dip" ALOT), shuts down, doesn't spray with the N20....But the N20 still sprays...What do we have:
An incredibly lean mixture...ie....GRENADE!
Don't skimp on the safety gear...Get the Fuel Safety Switch...It's cheap insurance.
Jack B said:A drop in fuel pressure will directly lean out the mixture, whereas the nitrous will remain fairly stable over the run. That is one reason for running a nitrous car fat or 10-11 to 1.
The fuel pressure switch is adjustable. I have mine adjusted it so that if shuts off the nitrous at 40 PSI (fuel). I log my fuel pressure and have come up with the 40 psi as a result of my log files. It is fairly simple to adjust. Set the regulator of your air compressor to 40 psi and and adapt the air hose to the pipe size of the fuel pressure switch, then, use a ohm meter to adjust the switch.
The oem PCM doesn't care about fuel pressure, it is monitoring closed loop (partial throttle) a/f.