yup nitrous is not flammable. its 2 parts nitrogen and 1 part oxygen. the fire in the cylinder burns off the nitrogen and relesses the oxygen,so you need the extra fuel to burn all the oxygen.the explosions usually happen when the button is hit at to low of an rpm or,wrong jet in either the fuel or No2 side :)

Wow high octane race gas is something serious..

omg omg omg

i would say you are right

If nitrous is no flammable then this fire is from the extra gas that is injected at the launch. The explosion blows the gas line off and the nitrous fans the flame. If I am wrong, pleases tell me what�s going on here.