NOS and how nitrous helps to speed up

  In the 1970s, Nitrous Oxide Systems (NOS) demonstrated how to successfully harness the power of nitrous oxide for automotive use. More racers are powered by NOS than any other nitrous oxide system brand. When in its intended state of compressed liquid, nitrous oxide can be viewed as an incredibly dense type of oxygen for usage in automobiles. Cooler intake air is denser and hence contains more oxygen, permitting for the combustion of more fuel and the resulting increase in power. An engine's output may improve by up to 1.5% with just a 10 degree change in temperature. When nitrous oxide is introduced into the intake manifold, it immediately starts to boil at -129°F.If we were dealing with, say, a 400 horsepower engine, we could see a gain of over 30 horsepower from the cooling effect alone. As an added bonus, this cooling effect also helps the engine stay below the detonation threshold. In order to boil, the nitrous has to absorb heat from the intake charge and in doing so has the potential to reduce the intake air temperature by up to 80°.

When a NOS nitrous oxide system is turned on, more nitrous oxide and fuel are added to the initial inlet charge. Although the nitrous oxide does not burn on its own, it acts as an oxidizer, increasing the amount of oxygen available for the new fuel to burn and generating more power. The nitrous oxide molecules disintegrate at 565 degrees F (lower than the temperatures of typical combustion), releasing the oxygen atoms bound to the nitrogen atoms. After being liberated from the nitrogen, the oxygen helps the new fuel burn while the nitrogen that has been released prevents detonation.Because there is more oxygen and fuel in the combustion chamber, the different molecules are packed closer together than they would normally be. This results in a faster burn rate, which requires less timing advance for the best outcomes. Peak cylinder pressure would occur too early due to the faster burn rate without the proper timing adjustment, which would result in detonation and engine damage.