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Reference: Nitrous Information

Discussion in 'Forced Induction / Nitrous DIY How-To's' started by oc_civic, Jun 19, 2005.



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  1. oc_civic

    oc_civic .................... Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    Wrote this a while ago, and been holding onto this for a while... don't think that ive posted it on Club Civic yet. people always ask me basic nitrous questions.. so i tried to outline a little of what i know about it.. HIH..

    Brief post about nitrous....

    Glossary:

    For this discussion there are some terms that may or may not be common to the basic automotive enthusiasts, they are:

    1. WOT: wide open throttle, this is used in this post to describe the point at which you are "flooring the car" the point at which the throttle is FULLY open during acceleration.

    2. Solenoid: a mechanical device that under current will open or close. In a nitrous kit these act as a gate to let in or hold back gasoline or nitrous.

    3: Micro switch: a switch mounted normally on the throttle body that only engages at WOT. it is used to control when nitrous is sprayed into the motor.


    What is the right kit for me? How does it work? is it safe. Etc.

    The way that nitrous works is it sprays a gas (nitrous oxide) into the motor, as the gas is introduced into the combustion process it breaks down and releases oxygen, this added oxygen allows you to add more gas. More gas plus more oxygen equates to more power.

    How do the different kits function?

    There are really only two main types of nitrous kits. They are wet and dry. The kits work as follows.


    Dry kit
    (Sprays ONLY nitrous into the intake path of the car)

    The most basic kit
    (ex. http://www.racerwheel.com/nos-05122.html )
    (and the one I use personally) is a dry kit. A dry kit ONLY sprays nitrous into the motor. the extra fuel is injected through the STOCK fueling system. The way that they work is as the nitrous solenoid opens to spray the nitrous into the motor, the working fuel pressure of the car is increased greatly. This increase is done through mechanical means (ex. nitrous regulator) or through electronics that are integrated into the ECU. These kits are good for relatively low nitrous injection levels (35-70/75) the reason these kits are not used in higher applications is normally due to poor nitrous distribution thus causing one or more cylinders to lean out. the reason this occurs is the fuel is increased pretty evenly through all four cylinders, and on a small shot this is fine, but when you reach the 100 type level the nitrous is forced into the furthest cylinder and since the nitrous is distributed unevenly and the fuel is distributed evenly some cylinders will run rich and some will lean out and detonate, thus causing premature engine failure. Most dry kits are set up to work with STOCK motors ... meaning you could literally buy the car and put it in.. things to make a dry kit more safe are colder plugs, STOCK ignition OR slightly retarded ADVANCING THE IGNITION ON NITROUS IS A BAD IDEA ... after-market chips unless SPECIFICALLY designed for your car with nitrous application are bad.


    Wet kits
    (Spray nitrous AND gas into motor through the kit)

    a standard wet kit (like this basic NX kit http://shop.store.yahoo.com/southwe...orcomallef.html ) has a nozzle that is mounted into the intake pipe with two inlet ports in the back. One gets a line mounted to the nitrous solenoid and the other to a fuel solenoid at WOT nitrous AND gas is sprayed into the motor.

    Another version of the wet kit (although there are rare applications of it being dry) is a plate system. a plate system is just like your standard wet kit except for there is a plate mounted in the intake path that has metal lines in it.. these metal lines have fine holes in them. At WOT nitrous and gasoline is injected into the plate and comes out the holes. good for higher shots. Slightly more efficient than the standard wet kits.(ex. http://www.edelbrock.com/automotive...trous/70021.jpg )

    The big one is direct port. Direct port is also a wet kit. It is VERY similar to the standard wet kit only it has at least one nozzle per cylinder and is tapped DIRECTLY into the intake manifold. this kit offers near perfect distribution, and is used in very high horsepower applications. (ex. http://www.holley.com/HiOctn/ProdLi...S/NOSNS/SC.html )

    There is also something new on the market, called a "noszle" it is almost like direct port and clips directly onto the injector here is information on that. I have no personal experience with this product at all (ex. http://www.holley.com/HiOctn/ProdLi...SNS/NOSzle.html )

    Accessories.

    1. Bottle heater: almost a MUST if you live anywhere that it is not at least 80 degrees year round. They all work a little differently bit they basically all do the same thing. increase bottle temp. the increase in temp increases pressure, increased pressure equates to a more study consistent nitrous flow.

    2. Nitrous pressure gauge: another must. I have a nice one mounted in my dash BUT even if you want to cheap out. at least get a bottle mounted one. Running down the track at 600 psi nitrous pressure is almost pointless. this gauge will tell you if the bottles hot enough and the pressure is high enough to make a solid run.

    3. Remote opener: nice for trunk mounted bottles eliminates going to the bottle physically to open it. There are some that are like big solenoids on the bottle, and others that physically open the bottle.

    4. Blow down tube: a cheap safety measure, it is a tube that is attached inline to a rupture disk in the valve of the bottle, the tube is then directed out of the vehicle, in the event that bottle pressure rises too high. the disk will rupture, and the nitrous will leak OUT of the car.

    5.Purge: a purge is an aditional solonoid that is open prior to running too bleed of any air in the line so that when you spray its pure nitrous in.
     
    Last edited: Sep 8, 2005
  2. Beelzebubba

    Beelzebubba SubGenius Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    Good Stuff :thumbs up

    Since you mentioned bottle heater and since there seems to be a plague of idiots with blowtorches I'm going to attach this link

    click it aiight!
     
  3. MasterShake

    MasterShake New Member Registered VIP Registered OG 5+ Year Member

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    Good info
    many peps r N20 knowledge laking
     
  4. Blazed

    Blazed Fuck The Powers That B Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    very nice write up..:thumbs up
     
  5. Black Sheep Performance

    Black Sheep Performance New Member 5+ Year Member

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    Nice work, looks good to me.
     
  6. Shiznit

    Shiznit Stickin it to the Man Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    i thought nitrous was forced induction. if so this is the wrong section
     
  7. io_303

    io_303 NIFOC Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    I have always know it a chemical Forced Induction
     
  8. Black Sheep Performance

    Black Sheep Performance New Member 5+ Year Member

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    Well...it's forced induction, sorta. heh. =)
     
  9. destructn

    destructn New Member 5+ Year Member 10+ Year Member

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    .... how bout the term.. power adder... sounds generic enough?
     
  10. oc_civic

    oc_civic .................... Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    this is the archives for all engine tech.. and yes.. its forced induction ;)
     
  11. EG_CaSe

    EG_CaSe ScAre CrOw Registered VIP 5+ Year Member 10+ Year Member

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    whats wrong with Torches?? i used them there Great and cheaper then a warmer...
     
  12. Going-West

    Going-West Tree people on my radio Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    because its illegal, the torch marks can will sometimes result in the bottle filler refusing to refill your nitrous because you are doing that, and most importantly you can melt or weaken the bottle with a bunch of compressed gas inside....think about it.
     
  13. 24-7

    24-7 E Engineering Registered VIP 5+ Year Member 10+ Year Member

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    Dumb, just dumb.
     
  14. EG_CaSe

    EG_CaSe ScAre CrOw Registered VIP 5+ Year Member 10+ Year Member

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    i know that it can cause serious problems but i mean whats so wrong with doing it if you know how to, i dont put the torch right to the bottle like some people i keep the flame about 2-3inches from the bottle just eunff so it feels the heat but doesnt get the bottle burning hot.. this thread makes me wanna go refill my bottle
     
  15. FRODO

    FRODO New Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    nice job Oc_civic...i might have N2O one day..you should do a write up on N-tercoller spray.
     
  16. Going-West

    Going-West Tree people on my radio Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    thats great if YOU know how to, but a lot of people don't so they could seriously get hurt from it if it explodes. if your gonna refill your bottle make sure there are no burn marks ;)
     
  17. FRODO

    FRODO New Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    that has bad idea writen all over it.
     
  18. EG_CaSe

    EG_CaSe ScAre CrOw Registered VIP 5+ Year Member 10+ Year Member

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    nah i painted my bottle, i had Sponge Bob high air brushed on it but from throwing it around it got all messed up so i painted it black with a blue tint. damn i havnt used this inawhile and i have this guy that wants to run me so bad so its gotta go back in
     
  19. v8eaterbeater

    v8eaterbeater Banned

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    i would think it would be forced induction too, b/c the n20 freeses the air comig in to the intake and crams it into you cylinders and bam more air then with out.
     
  20. EG_CaSe

    EG_CaSe ScAre CrOw Registered VIP 5+ Year Member 10+ Year Member

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    Sup OC im waitin for the Info.. ahh i might just sell both kits and do some more motor work. i mean theres gotta be something i can do to get more power.. besides a 50 shot... im a little scared to Nitrous has gave me problems in the past even thou i was abusing it, this motor just has to much invested to blow up like that
     


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