Nitrous set up

[oi_boy]

dry kits are usually considered safer than wet kits, because with wet kits you have a high chance of detonation.

[whtteg]

Originally Posted by Neutrino

I beg to differ. I never heard of a dry setup to cause that problem.

A dry setup just ads, to the normal air coming from the intake, another gas with a higher oxigen content plus the added endotermic effect of an expanding gas. So the nitrous from a dry kit will just arrive in the manifold just as normal air and be treated as such.

On the other hand a wet kit(not direct port) is more akin to adding a small carburetor before a manifold designed to accept and distribute only air and then mix it with fuel. not incoming gas/fuel mix as in old school engines with carbs.

The dry kit can still cause a lean condition in one cylinder and a rich condition in another. The reason is because the nitrous is added like you say in the intake, but it is in no way anywhere near the same amount, and it will not be distributed as you may think. The result will be more nitrous in one cylinder than another, which as we all know will cause a lean condition because the dry kits bump up the fuel pressure according to bottle pressure. This being said the fuel injectors will add the same amount of fuel to every cylinder as were the nitrous will not be distributed the same in all cylinders. But with a wet kit the fuel and nitrous are mixed and pretty much vaporized ( the technology in the newer nossles make the fan very fine and light spray) and the just like with the dry kit the nitrous will not be distributed evenly either, but the fuel to nitrous ratio will be correct in every cylinder. Nitrous backfires from a wet kit are almost always caused by too low of bottle pressure, improper nossle placement or jetting issue etc, it does not just puddle up in the intake unless something has been done wrong. Also nitrous is a liquid not gas (or at least the part that goes into the motor) nitrous bottles have a siphon tube that goes to the bottom so that it sucks up the liquid instead of the gas that rises to the top part of the bottle. So the nitrous in a dry klit will not flow like air it will flow just the same as the fuel and nitrous that is mixed in a fogger nossle with a wet kit.

Originally Posted by oi_boy

dry kits are usually considered safer than wet kits, because with wet kits you have a high chance of detonation.

If you don't know what you are talking about then don't reply

Also your statement is completely wrong!

[Neutrino]

Originally Posted by whtteg

The dry kit can still cause a lean condition in one cylinder and a rich condition in another. The reason is because the nitrous is added like you say in the intake, but it is in no way anywhere near the same amount, and it will not be distributed as you may think. The result will be more nitrous in one cylinder than another, which as we all know will cause a lean condition because the dry kits bump up the fuel pressure according to bottle pressure. This being said the fuel injectors will add the same amount of fuel to every cylinder as were the nitrous will not be distributed the same in all cylinders. But with a wet kit the fuel and nitrous are mixed and pretty much vaporized ( the technology in the newer nossles make the fan very fine and light spray) and the just like with the dry kit the nitrous will not be distributed evenly either, but the fuel to nitrous ratio will be correct in every cylinder. Nitrous backfires from a wet kit are almost always caused by too low of bottle pressure, improper nossle placement or jetting issue etc, it does not just puddle up in the intake unless something has been done wrong. Also nitrous is a liquid not gas (or at least the part that goes into the motor) nitrous bottles have a siphon tube that goes to the bottom so that it sucks up the liquid instead of the gas that rises to the top part of the bottle. So the nitrous in a dry klit will not flow like air it will flow just the same as the fuel and nitrous that is mixed in a fogger nossle with a wet kit.

See this is were you got wrong(hightlighted in bold). The moment nitrous leaves the high pressures of the bottle and lines it will instantly transform in a gas. It has a boiling point of -88.44 C so unless you think you can maintain that kind of themperature in the intake or presures similar to the bottle it will become gas.

Why do you think nitrous is so cold. Its the process of expansion into a gas that creates the endotermic effect.

So bottom line its physics nitrous will flow as a gas trough your intake period. Its flow charactheristics should be very similar to air and quite different from fluid.

[whtteg]

Originally Posted by Neutrino

See this is were you got wrong(hightlighted in bold). The moment nitrous leaves the high pressures of the bottle and lines it will instantly transform in a gas. It has a boiling point of -88.44 C so unless you think you can maintain that kind of themperature in the intake or presures similar to the bottle it will become gas.

Why do you think nitrous is so cold. Its the process of expansion into a gas that creates the endotermic effect.

So bottom line its physics nitrous will flow as a gas trough your intake period. Its flow charactheristics should be very similar to air and quite different from fluid.

True true the nitrous changes from a liquid to a gas at 20*c about 70-75*F. But it does not change at -88.44*C it changes at 20*C.

Here is some info from NX

The "dry" system uses the factory fuel injection to enrich the nitrous introduced into the engine. The flaw with this technology is that no matter how much nitrous arrives at a certain intake port it always gets the same preset amount of fuel, or if a fuel injector becomes clogged engine damage will result. The "Wet" technology introduces a precise amount of fuel and nitrous through a high tech mixing nozzle that atomizes the fuel to microscopic proportions. This allows every cylinder to receive a precise, homogenous mixture of fuel and nitrous, thus insuring a safe, powerful increase.

And

Nitrous backfires can be caused by two situations. 1. A nitrous system that is two rich or a system that atomizes the fuel poorly, thus causing pooling or puddling of fuel in the intake manifold. 2. A system that is operated too lean.

This is what I was originally talking about, the wet kits are no more dangerous than a dry kit and if anything safer in the hands of a person that can be reasonable while using it. This is just my opinon and no matter what anybody tells me I will never use a dry kit.

Also one thing I forgot to mention was that the dry kits produce less hp than the wet kits. I tried to find it but there is a dyno test between a NX system and a ZEX system and both were jetted for 50hp. The test car was a civic SI or civic SOHC, and the results were the ZEX kit produced 38whp extra and the NX kit produced 51whp extra. I am pretty sure about the numbers, its been a while sense I have seen it but I do know that the ZEX was in the upper 30 whp range and the NX was either 51 or 52 whp.

[Neutrino]

Originally Posted by whtteg

True true the nitrous changes from a liquid to a gas at 20*c about 70-75*F. But it does not change at -88.44*C it changes at 20*C.

No

Its boiling point is at -88.44 C

here is the proof:

http://www.bacharach-europe.com/supp...-oxide-n2o.htm
http://mattson.creighton.edu/N2O/
http://vpl.ipac.caltech.edu/spectra/n2o.htm

[whtteg]

Originally Posted by Neutrino

No

Its boiling point is at -88.44 C

here is the proof:

http://www.bacharach-europe.com/supp...-oxide-n2o.htm
http://mattson.creighton.edu/N2O/
http://vpl.ipac.caltech.edu/spectra/n2o.htm

I can't remember the site URL but I found where it said that nitrous( a liquidfied gas) makes the transistion from liquid gas to vapor at 20C.

[PoisonFangs]

This topic just got a little to smart for me. I am gunna have to do alot of research to keep up with you two.