NOS(Nitrous Oxide or N2O or laughing gas or nitrous) is a chemical compound that consists of 2 molecules of Nitrous and 1 molecule of Oxygen. It is a colorless, non-flammable gas with a slight metallic scent and taste.
The way it actually works, when released into engine, is it increases the internal combustion of engine’s power output by allowing fuel to be burned at much higher rates. This is achieved because of the high oxygen pressure injected with the fuel mixture. The extra fuel must be added as well and it is all compressed in a tank in liquid form.
NOS systems can be “dry” and “wet”. Dry-ones present us with the situation where nitrous oxide is injected separately from the fuel and in wet-ones the fuel is carried into the engine along with the nitrous. The very first usages of these systems were applied even in WWII in some aircraft engines. Today, this is a beacon of light for autosport, drag races and Formula Drift series.
While considering installing the system yourself you should follow few basic steps and warnings. After installing a bottle safely where you planned, the engine compartment with solenoids is the trickiest part and should not be taken lightly and if possible only with professional help, while in this area of NOS installation. After wiring up the switches and solenoids, it should all be properly tested and if it all clicks when it should you’re good to go and test it on the track this time. But, at all times every driver should be aware of the things that can go wrong like fuel pump fails which result in loosing pressure immediately causing extremely lean condition. Also, some fuel injectors with dry NOS kit can lock up and not flow fuel as well as failed solenoids that can cause serious damage.
Either way, properly tested and safety inspected and double-checked NOS installation with professionals next to it, is everything a pro-driver or even just a car enthusiast would ever want to look for when wanting to add more power to its car.