DSMJim, what possible things could cause an explosion?

[definitiveno]

If you could just throw out a couple scenario's where a nitrous explosion could occur......


If this is too vauge I will try to narrow the question a bit.

 

[ShadowWulf]

On a wet kit its possible to get gasoline puddled in the intake manifold ive heard....BOOM would be the result i imagine.

 

[Burnett03]

On a wet kit its possible to get gasoline puddled in the intake manifold ive heard....BOOM would be the result i imagine.

1) installing a wet kit and having a fuel leak
2) puddling in the intake manifold
3) leaving a bottle heater on and overheating it and the blow out disc fails

 

[DSMJim]

Generally a nitrous backfire is from really early detonation from a glowing piston or more typically a glowing or melting spark plug. What happens is the intake valve open on that cylinder and the nitrous fuel mixture enters and is ignited by the glowing piston/spark plug. That combustion then flys right out the cylinder thought the intake valve and ignites all the nitrous fuel mixture thats in the intake manifold. When you get a back fire out the intake something was screwy with your tuning. Basically you just turned your intake manifold into a combustion chamber. This is why the explode or you bend throttle plates and turn filters into balloons etc..

Typically fuel does not puddle in the intake manifold, thats old rhetoric from Nitrous Oxide Systems because they wanted to sell direct port kits and couldn't design a nozzle to save their lives. Well this has all changed. With any modern single nozzle kit (in the last 8 years lets say) you will not have to worry about puddling in the manifold. Also if fuel really were to stand somewhere in the manifold, it's a really small amount and not enough to do anything vs. how much is atomized in the air inside the manifold. Plus how did that standing fuel get ignited? It still has to ignite somehow, so what I said above is what happens then the puddled fuel would just go up with everything else. Even if it does somehow light, the back fire again is still from all the nitrous fuel mixture that is vaporized inside the manifold. Put it this way, you can put a lit cigarette out in gasoline, but you can't throw a lit cigarette inside an empty gas can with fumes in it. The vaporized fuel/nitrous mixture in the air is much more dangerous than any fuel that might puddle even if that were possible. It would simply add to the fire, not cause it. Gasoline in a liquid format can be light with a lighter in a puddle on the ground and is slowly burns, no big deal. Gasoline vapors burn really fast hot and dangerously. Thats why the nitrous nozzle is designed to vaporize the gasoline with the nitrous, same as what a fuel injector does.