itys not there until its heated and breaks down u blasTARD learn how to read!!
The oxygen is there in the molecule N20 all the time. It is not RELEASED until the molecule is heated. The only way to get it to "free release" (in other words for the nitrogen and oxygen to spontaneously separate) to to decompose the moelcule using a heated catalyst. The hot piston, valves, and head operate as a catalyst for the decomposition of the molecule BUT the decompostion releases the elemental constituents releasing elemental oxygen (O by itself) and molecular nitrogen (N2) at a rate greater than the exothermic reaction can consume the two components. The net result is a gain in flame front temperature (due to the decomposition) and an increase in oxygen concentration in the cylinder. The oxygen concentration is then buffered by the nitrogen (the 66% in the initial molecule) to help keep "knock" at bay. Otherwise, it would be preferrable to simply spray pure oxygen (in the form of O2) into the cylinder. Unfortunately this would create an unbuffered chemical reaction which would probably result in cylinder head separation.
@Puma: I understand that bottle pressure will drop off and running a straight shot for 25 seconds is completely ridiculous. Unforutnately, the battery capacity (for the high drain fuel pump) doesn't care about the nitrous bottle pressure or the overall "run time" of a 5 lb bottle. The whole time the pump is on, the battery is getting drained which means you have a limited FUEL run time in addition to the limited amount of oxidizer run time (stored capacity in the bottle)
Let's try starting over with this peeing contest and look at a few cold hard facts about nitrous:
Nitrous oxide is a strong oxidizer. The oxidizer flow, in a perfect world, would be matched with fuel flow to keep the engine happy. The problem with putting nitrous oxide on a non DC system vehicle (atv, motorcycle, PWC, snowmobile that runs off AC stator CDI ignition with an AC lighting coil) is power supply. Commercially available nitrous systems are designed for automobiles/motorcycles with an available DC charging system and reserve capacity 12VDC attery.
The battery that can fit in the blaster plastics (in the "battery box") is about 4Ah. Without a DC conversion (we'll get to that later) the fuel pump drawing about 4 amps is going to be run at above 10VDC on a 4Ah battery for less than a half an hour. For anything other than a flat track quad or drag quad, that's utterly useless and can, in certain circumstances, be dangerous to the engine. If the battery drains enough that the pump speed drops (~10VDC) but the solenoids can still be activated, the mixture control can be erratic at best and piss poor at worst but the system will still be able to spray full nitrous pressure resulting in a lean condition.
With a DC conversion, the maximum comercially available lighting coil for the blaster is 75watts. A regulator rectifier which is 100% efficient (which CANNOT exist according to Sir Issac Newton, in case you want to argue physics now) will only put out ~5.7 amps at 13VDC (which isn't what they put out either...... ) or 5.2amps at 14.4VDC (what they're actually designed to rectify to). If we ignore the need or lighting or natural battery dissipation the system has a theoretical 100% efficient conversion rate with a surplus of approximately 1 amp to run a small automotive fuel pump and solenoids.
If we factor in reality (which some obviously find it hard to grasp) there will be a net LOSS of energy during operation of the system.
You COULD only "arm" the system right before activation and "drag out" the seemingly inevitable draining of the battery by either spacing out the "draws" if you do not have a DC convserion or allowing the battery to charge the whole time you do not have the system armed but that would require careful monitoring of battery condition while the system is "armed" to make sure that pump pressure hasn't fallen off..... This is a risky proposition IMO.
There are other options. As blastard pointed out, a similar "prepared" system to a battery could use a inert gas pressurized small pressure vessel fuel cell to deliver relatively stable high pressure fuel to the solenoid for a given amount of time/volume. Obviously the system would need safety backups such as low pressure switches on the pressure tank and Would require a very careful setup of stored fuel and store nitrous (theoretically matching them evenly so that they both run out together) The good thing is, the safety systems would not need monitoring like battery voltage, the bad thing is it could also cause some trouble.
I was thinking about devising a system that used an emulsion tube (similar to the pilot jet) inside a venturi mounted just outside of the carburetor throat. Any sort of nitrous delivery could be used including one of the "whippet" (like the CO2 containers found in "pellet guns") bottle handlebar mount dispensers. The fuel would be supplied to the emulsion tube from a line at the bottom of the normal float bowl (like how a powerjet is installed). The nitrous flow would create a vacuum in the small venturi and the flow would then mix in the emulsion tube with the fuel before being forced ( under the natural nitrous pressure) into the intake tract.
This has a few advantages and a few disadvantages!!!!! (read here to tear this idea apart and if you have any suggestions quote this section)
The nitrous flow would create the vacuum needed to draw the fuel in without requiring any electricity. Fuel delivery could be gravity to the float bowl just like it is currently. When the nitrous oxide is done, the vacuum drops off and fuel delivery ceases. The nitrous and fuel would be delivered together inherently by the design.
Nitrous bottle "freeze up" COULD result in a flow disruption and pressure drop. This wouldn't necessarily change the oxygen to fuel ratio as the dropping pressure would reduce the venturi effect, it would just change the power of the "shot".
The system would obviously require quite a bit of engineering and fine tuning..... this would NOT be an off the shelf item and fine tuning fuel flow to nitrous flow would be an EXTREME challenge. This setup would NOT be for the faint of heart.....