Stupid question, but I've never seen anyone use nitrous, other than in movies.

When you push the button to initiate the spray of nitrous, how long does it last? A couple seconds? Or do you have to hold the button down? Thanks.

 

I don't have nitrouse but what I hear is basically it acts like a switch, when you want to set it off, you press and HOLD the button, then when you want to stop you let go.

you only press the nawz when you are over 3,000 rpms "2,500 is the least"

 

How long do most people hold it for?

 

the only "switch" you want within arms reach is the arming switch, the activation should be attatched to the throttle to cycle during wide open throttle only.

 

you can have it setup so you have a throttle body switch, then it will go off at WOT, but you can have it the other way also.

 

TTT

 

You can hold the button in for the whole 1/4 mile run, but you can hold the button down for as long as you want as long as you have good fuel pressure.

 

You're thinking that nitrous use is a predetermined length "shot" per button press..

It's not like that at all.


The way the switch works is by allowing power to reach the solenoid(s). When the circuit is completed through the solenoid, it opens(magnetic close system IIRC). When the circuit is broken, the plunger will be drawn in, and the solenoid closes.


For circuit control, there are a number of "breaks" or switches within it.

First: WOT Switch. This switch is either mechanical, or electronic (TPS based) This switch mounts on the tb (or carb) and has an arm that extends and is tripped when WOT status is achieved.


Second: Master Arm switch: This switch is located within the car. This is either a toggle, or a push button. When this is activated, and then the prior (or latter) breaks are met, the system will have a complete circuit, and you will be spraying.


Optional: Window Switch: Electronic switch that monitors vehicle RPMs and will only allow the circuit to be open between a set RPM range (usually around 3k -> 5k rpms)

FPSS: Fuel Pressure Safety Switch... This is a valve that hooks into the main Fuel line, and measures the pressure. If it drops off below the set cutoff pressure, the circuit will close.


Hopefully this helps out.