How To Install an NOS Dry Nitrous Oxide System
ฝัง
- เผยแพร่เมื่อ 10 ก.พ. 2025
- Learn more: www.holley.com...
This NOS video demonstrates how to install a typical Dry NOS nitrous oxide system. A Dry NOS system delivers nitrous oxide to the air intake tube of your engine, while the vehicle's fuel system provides the added fuel. The video demonstrates how to locate, drill and tap an OEM or aftermarket intake for an NOS nozzle.
I ran this kit on multiple, dry manifold four-cylinders. One was lost to nitrous but it wasn't the dry system itself, rather it was the joke of a pressure 'safety' switch NOS and others sells with these kits.
Most efi cars today will cut injectors out in an overrev condition.
That cut can be induced by either over-rev's (redline) or by hitting the speed limiter (top speed cut). In both cases, the computer will cut fuel to the injectors.
NOS's pressure switch is supposed to register fuel pressure loss, and disable the nitrous fogger from spraying.
That is all and good if you have a car that NOS cut their teeth on...an old honkin', carburetor fed engine because their fuel pressure is not cut at 'the injector' cause it doesn't have injectors.
Older V8's also don't have rev limits and speed limits.
If you over rev or over speed an efi car today, the switch that NOS gives you will NEVER see that loss of fuel because it's usually tied in to the feed line to the rail. The switch will see 45psi (or whatever your particular pressure is on your car) and keep that fogger spraying.
The whole reason they use the 'nitrous regulator' is to augment pressure to the fuel pressure regulator. When you hit the nitrous, the fuel pressure is ramped up to meet the fuel demands of the nitrous. You MUST have that extra fuel during nitrous spray or you will toast your engine.
My blow event was racing a ws6 on the freeway. I went into over-speed and the injectors cut fuel....engine went boom.
The dry kits have the drawback also of overcoming the fuel supply during the first few seconds of nitrous hits before pressure can be ramped up to provide for it's use. This causes a lean condition initially, but I never experienced a failure from that in all the kits I installed.
However, ONE OF THE BIGGEST NO-NO'S is putting a single fogger WET system (where the nitrous is fed with the fuel) before the throttle body.
Dry manifolds were designed to flow only air...they have long runners to help them tune teh torque profile of the engine. Fuel will hit the walls of these long runners and fall out of a vapor, causing unequal fuel to the cylinders.
And, in some cases when dry manifolds run a wet kit, for example the last couple years of a saturn or other car that positioned the throttle body facing upwards, fuel pooled in the low curves of the intake manifold runners and did ignite and blow up the intake. I know of two cases personally where that happened.
The best, safest, ultimate way to run nitrous would be the direct port systems. In some cases, limitations on what hp level you run, on say a four cylinder being perhaps 70hp (stock internals) can be increased to a 100hp kit, using the individual kits.
This way, the exact amount of nitrous and fuel goes into each cylinder and if care is used (making sure not to engage below 3000 rpms, using highest octane gas at all times-maybe even an octane enhancer AND some colder heat range plugs), nitrous is addictive and fun to use.
Good luck.
Thank you for the clear understandable step by step instructions unlike other TH-camrs very much appreciated, you subscriber! Merry Christmas from down under Australia in this sweating summer lol
I'm not one of the haters I drive a 5.7 hemi modded with 75 shot and don't have problems but with nitrous the only thing you don't want to do is over Rev bc that's one quick way to blow your motor
+supermotardmario ::: When over revving the ECU cuts fuel creating an extreme lean condition.
Make sure you re gap your piston rings for nitrous as well.
It's funny how many know it alls are saying this will blow up. It's a small shot so it can be installed on a bone stock engine but most people don't do nitrous until after they've done fuel injectors fuel pump and exhaust and that's not a have to do but helps get all the power potential from the nitrous. using a 25hp shot on a stock car probably won't give the full 25hp but is also unlikely to cause damage as long as it's not being hit at partial throttle and for extended periods. it's meant for drag racing and it works fine for what it is.
Wowwwwwwww a whole 25hp! I spray 350hp on my setup 😂
@@BashfulBones is your engine stock?
@UCTGTn5JEdtKwJd439zl6eFA 1 seconds shots are for puss
Lol all depends I can put an nittor 80shot in my stock block I have a corvette c5 1999 😂
@@BashfulBones4 years later, wanted to let you see that you couldn’t understand that he was giving an example and your smooth brain couldn’t comprehend that.
Excellent video. Very professional thanks.👏👏
Becuse of this video I may be able to do this. 👍
this is such a great video! informative and straight forward
does this account still live?
hi there, very insightful upload so thank you for the added knowledge. i plan on sticking a kit through my automatic 04 chrysler crossfire but not sure if wet or dry would be better, any tips/ideas? also if you have come across that type vehicle with a kit before, do you know what install worked best for them?
that's great, now maybe they can also explain how to resolve the additional fuel needed.
The line he mentions going to fuel psi regulator does it.
I'm kind of with the original poster because they didn't show how to set that part up which is probably the most difficult part of all of this (it's all bolt on - however not knowing how to connect to the fuel pressure regulator will stop you dead in your tracks
Watchimg this as a kid felt so illegal!
Nice video 👍👏
After 11years i am seeing this😂
Me too😂
Back in the early 1990s i put a dry kit on a 5.0 Mustang. It hit good. Later with a Vortech blower i ran nitrous thru the blower to cool the air.
Perfect setup!
How to hook up wires on solineoids?
nice clear instructions
I wanna put nos on my 3.0 rt struatus and i cant find any kits for the car so im wondering if a universal dry kit would work?
as this video explains everything, i dont think that ppl that dont know where the intake is located and what it is should install N2O to their cars :D
I thought the same thing when he said locate the throttle body. If you don't know what a throttle body is or where it is on your car, you don't need nitrous.
So the same nos kit will fit on my 2009 Chevy Silverado 4.8 I have KNN n long tube headers and it’s tune What would be a good positive differential axle to put on it
Edwin Jimenez Get a 5.3
Rusty P3nis I don’t wanted to be racing I just wanted to do nice burn out when I want it to
Edwin Jimenez them 4.8 can hold a lot more boost
Would you have to get a bigger fuel pump and gas tank pump
I'm hooking this kit up to my shoes ...
online. Google search it. There are plenty of places to purchase many different styles of kits.
@ Kurt Bennet. I have a dry nos system that is 90 percent finished. It has a activation switch, a momentary switch, 2 solenoids and a nitrous pressure regulator. The car is fully built and procharged. I cannot seem to get a straight answer on how to incorporate the 50-75 dry shot on too of boost. Before the intercooler into the Holley mass air, at the throttle body( I do not know how to add fuel through the ECU) I just want to cool inlet temps and add a little more bang. You are informative. Could you please tell me how I should run this system. Thank you
How much more boost will you get if installed before a turbo f250
Do research stupid
Definitely could’ve kept going with the video and show use and safest way to use it
So, I have to insert the nozzle such that the nitrous does NOT pass through the mass air flow sensor?
Yea
Can you explain why this is
@@jonwood1459cause if I’m not mistaken, your “tricking” the MAF. If you do it before the MAF, The MAF would read that shot of NOS and tell your car your pulling in too much air to the fuel ratio. And if you do it after the MAF it already calibrates how much air the car has sucked in so it has no clue that it’s getting that NOS. But idk I might be wrong? Lol
Dry system install it before mass air so it can tell the computer to add the extra fuel you need@@jonwood1459
So nos is easier to install than Turbo chargers?
I have mine injected into the turbo pipe that feeds to intercooler is that no good?
yo I'm thinking an intake tube port, mines aluminized steel... this dry system will still work in turbo applications though right?
Idk why but nothing is coming out of the outlet end but my nitrous pressure regulator is turning frosty and the line going to fuel pressure regulator
Is it the same process with a turbo?
53 policeman dislike this
53 policeman want this in the police car
+Reha Daniel lols
+Reha Daniel I blew the welds on my floor pan again.
+Hakasauars I caught that reference lol
Josh Davis hehehe. Dont forget to checkout my vids!
if you have to describe what and where the throttle body is then that person does not need nitrous.
I was thinking the same thing !
It's for boomers who are used to carburetors.
I think there are seperate kits for that. I guess it just forks out into two?
cone of the filter? not if you have a MAF (Mass Air Flow) sensor between the filter and the TB (throttle body). As stated in the video above the Nozzle should go in between the MAF and TB.
AGearHead4Life d series honda uses map
is there a kit for carb motors. i have a 1985 Isuzu pick up 4 Cyl. and wondering if there is a kit for that application.
Thanks for tutorial it works
+jh0ssimar its not as easy as just installing it and going. depending how much you spray, you need a fuel pump, bigger injectors, and a tune. i would get a tune regardless so i know i won't pop holes in my pistons.
can i shot it straight into my 4 carburetors? and how to make it work without fuel injection system? there is a specific kit? thanx
danger to manifold...
Shut up!
Flatform dropping noise
Almost had him. Almost
@@4DollaSignaken no one can beat Dominic
EXELENT VIDEO:)
Putting and having NOS in your car is not illegal. It's illegal to use it on the streets. Little bit f***ed up I know, but its true. Somewhat understandable for the kinds of guys who like to have some fun with their daily drivers on the weekends and add some temporary power just for that occasion.
Do you have to tune for this? If not then that would ne cool! Don't want to tune and void warranty
I would think throttle body because you are closer to the intake PROBABLY getting a better flow.
Im watchin this while tripping balls lmao
Can u do a 100 shot like this if you have holley fuel pump and new injectors?
joe shmo yes easily
were is the change in timing after frying the motor .
On a turbo setup can you do a dry setup before the turbo in the intake?
Nooo you will burn your car up
mesti Brondong proyek mari nonton iki 😂
Tibak e enek sg delok🤣
the vacuum line that goes from the nitrouse to the engine fuel pressure regulator, do I add a Y/T adaptor to add the vacuum line from the nitrous or do I remove it and just install the vacuum line from the nitrouse??????? pls help
+Oswaldo Castillo probably works both off the vacuum from the engine, you could probably use another vacuum take off for it, would be doing the same job I reckon,
My wife : don't ever think about it 😒
what if my MAF is in my throttle body?
drill a new hole in your intake tube and relocate the sensor then use the old hole for the n02 nozzle
i just realized that this comment is 7 years old so im gonna assume you already found a solution lmao
❤ good creative
Thank you now I can blow up my engine
NOS doesn’t blow engines people do!!! If you install Nos you gotta change other things within the engine to hold that kind of power.
The Nos is still?
Am i right or the first car is a Toyota Tercel ??
Haha ! I'm gonna put a Nos on my winter beater !
I found this to be really funnyl... Once i saw that it was a Honda.. haha
what would be better? Throttle body or intake positioning?
Were can you get the kit
Get a plate kit, Better spray pattern and no ghetto drill install, and its easily removable.
Camaro Rick will a plate kit fit a 1993 mazda rx7?
Moises Gutierrez you have to find the specific plate setup that fits your application. They are made to fit behind the throttle body. The benefit is even distribution. Beyond that is an even better distribution install called a direct port system. (Each intake runner gets its own nozzle) it is what is used in high end setups as it is labor intensive and space critical.
if it was this easy i wuda done this but putting nos on your car is illegal were i live unless you are using the car as a paddock car or dragster. nice vid too
thanks its helping
What if someone put It on a 50cc 2 stroke
This dry system may as well be called a "lean system" , I didn't hear anywhere here them explain where it gets the extra fuel needed, maybe the extra nitrogen and oxygen just magically burn with each other???
I thought it was a common (even if not perfect) practice on a dry system to DEFINITELY put the injector BEFORE the mass airflow sensor to fool the computer into giving it more fuel, not really fooling the computer, the sensor senses the cooler and denser air so it uses the injectors that are already there to increase the fuel accordingly.
Don't just say something and not give a reason, why can you never put it 'up steam' of the air flow, why wouldn't you, you have basically injected more air flow???
Does the exhaust oxygen sensor tell the computer it is too lean and increase the fuel injected?
Teflon tape causing severe engine damage ????? Titanium tape maybe.
+Loveiswaitingforthe1 it might be down to the o2 sensors in the exhaust to decide the engine needs more fuel , though it will have been running lean for a short while already, think id prefer a wet kit , probably safer for the engine, . I have used the 5th injector from the older vw golf gti to deliver extra fuel , controlled by a boost switch on the turbo conversions , there might be a way of using the same thing to compensate the dry nitrous system.
the car will not compensate that much for the nitrous even if it's added before the MAF it doesn't work that way. and neither will the oxygen sensors it's up to the installer to add fuel in the tune and pull timing if needed and there are several ways of doing that.
The rising fuel pressure helps with extra fuel and the jet goes after maf so it doesn't damage it by spraying freezing gas over a heated element. The kit is so low hp that extra fuel isn't a big issue as long as you only use it in short bursts at wot. This isn't something you'd use for drifting only drag racing. Also most people upgrade fuel pump and injectors before installing nitrous anyway. most 4 cyl mpfi engines can handle a 50hp shot on completely stock hardware and tuning but it probably won't get the full 50hp from it.
I've done a 35 hp shot dry on a 95-99 Dodge Neon with no issues at all, other than running premium fuel. You are correct most modern EFI cars MAF or Speed Density can easily adjust for the extra oxygen added. You should get 50 hp because I've gotten 65 hp at 1100 psi with 50 hp jets (fuel and nitrous) in a 2001 Dodge Neon that was also automatic, it ran 14.6@97 mph on street tires. Compare that to stock....
Loveiswaitingforthe1 anthony thomas was that a turbo neon?do you know if this set up can be installed on non turbo engine dodge neon sxt?
bel video
Già
can i use this in my FIAT 126p?
i want to install this on my ford puma 1.7
Did you do it?
can i see the result?😂😂😂
That might blow up
Says minimum of 6 inches from throttle plate but then says you can install right at the plate....
question... do I Y off from the fuel pressure regulator?
to give fuel pressure increase to give extra fuel.
Wow asi funcionan :D
Like new sub
Which is better dry or wet?
Depends on what aspect you are looking at? A dry system is typically cheaper and easier to install. A dry system adds only NOS and is harder to maintain the correct air/fuel ratio. In my opinion a Wet system is the way to go and safer for the engine too! It adds a calibrated amount of fuel with the NOS shot to prevent a lean condition from occurring. It is more time consuming to install but is alot easier to control or adjust the ratios to maintain the proper air/fuel ratio. hope this helps, Thx J
Ask your girl
@@HolleyPerformance is it possible to spray a 50 shot dry on a early c4 corvettes mass air meter to force it to enrich the mixture? I think the early c4s ignore the O2 sensor at wide open throttle and would run lean.
If you don't know what a throttle body is I don't think you should install nitrous
problem what I am having Honda prelude rpm up down up down I have to maintain RPM from accelerater how is look like that's why I make a video but I understand your situation cant give me your email so I'm requesting you to tell me help me how I can fix that Or if you have a time you can see the video on TH-cam just type( honda prelude tell me) green color Honda prelude I know what I'm saying is funny but I don't have any other options to show you
in a 1.6 liter gasoline with 135 hp from factory how much power its added with this NOs??
The instructions not clear engine blew up in my garage.
Haw.haw
Where to get them ?
would it be a good idea to do this to a tahoe
Miguel Hernandez vortec can handle it easily
superb....
Perfect
i was wondering if i could drill stright into the cone of the intake? please give me an answer
Yes u can
sublime....
Do have for motorcycles?
Yes we do! Here is a link to our kits.
www.holley.com/brands/nos/products/nitrous/powersport_systems/ Thx J
This video is misleading. Dry shot needs to go before the MAF so the Maf can make adjustments for the intake air temp and fuel adjustments.
how many hp this nitrou will gives?▌
+prince iQ How many hp petrol will give you? Same question...
Paulius Butkevicius o-O
does anyone else call tread sealant tread dope
Sammy Bennett thread*
Yes pipe dope
detonation here we come because our stock fuel pump and injectors can't keep up
Pcwizard20ghz so upgradin the injectors should do it then for this set up?
The only reason problem happen because of non forged internals and the piston ring gap is too small. And too much shot.
Hay guy get it together
one way only to install Dry Shots.....YOU DON'T!!!
Anyone else experiencing a weird freeze at 2:22?
Camaro Rick dont you mean jerry rigg surly you dont believe those mods done in the getto
THIS GUIDE IS ALL WRONG!!!! Do not ever put nitrous to the intake pipe. The way engines are set up not all cylinders get the same air ratio but they do get the same fuel. If you put that much bos to the first cylinder and not distribute it to all of them equil you will met the first one. I know from experiance amd I had a tune. Do not do this. But a nitrous fuel rail so the spray will go through the injectors
Dry kits are pretty easy to trash a motor with anyway
R7300 You are supposed to mess up the timing. That's why its called a tuner.
You don't have to mess with timing depending on size of shot and fuel used. Ideally you pull timing.
+blu3cha0s No, you are all wrong.
What is an "air ratio"? You need two things to have a ratio between them, like a "fuel to air ratio" or a compression ratio, that can be your homework to look up what that is a ratio between.
Engines are "set up" not to get the same air....WOOOOT?
The cylinder draws, pulls or creates a vacuum to get air into itself, nothing really to do with the manifold, the injector should inject exactly the same amount of fuel to each cylinder, therefore the air to fuel ratio should be EXACTLY the same on all cylinders.
By your wrong theory, the compression would be different, when you say things like "not distribute equally" you show that you don't really grasp or understand much about engines.
The manifold is there to be able to have the incoming air filtered, to have a flow sensor for the ECM and to control the amount or flow of air through the throttle butterfly, the cylinders condition and valve timing determines how much air it gets and the valves and cams are "set up" to be exactly the same.
So you should understand why people do not need to take your wrong advice.
As for my little experience with nitrous oxide, the most important thing is to give it more fuel to burn the extra oxygen with, otherwise the engine "fuel to air (combustible oxygen)" RATIO gets very lean.
Look up "Stoichiometric air flow ratio" to see how it is usually about 15 to 1 (14.7 to be exact) , this is to allow complete combustion of the fuel.
So the engine designers design or "set it up" to have this ratio but when nitrous oxide gets injected there is a lot more extra oxygen than fuel, compared to the Stoichiometric ratio, this burns hotter, things start to glow, ignition happens too early from hot bits instead of spark plugs and that is why it detonates itself to death.
Wrong, small amounts of nitrous will have no ill effects especially dry. Dry systems are misunderstood and it's best if you don't know then don't comment because all your doing is spreading misinformation.
Not only is adding nitrous without extra petrol retarded but also you put the jet in the wrong place jets need to be right next to the solonoid other wise you end up metering a mixture of liquid and gaseous nitrous
Brondong proyek kyongene mbrng kyoke po
Akhir e ketemu seng komen ngene wkwk
Akhir temu seng komen ngene wkwk
Exactly my thought. Aren't you gonna lack fuel if installed this way? :S
The line he mentioned goes to fuel psi regulator to increase fuel psi when activated.
The Fast and The Furious
where can I find this exact kit?
Still haven’t figured it out?
Lol Nathan ive ran dry nitrous on a couple of my cars never blew the motor !lol smh nay sayersss. ..
is it works on carb engine?
+Encik Zach will work on any engine, as long as you can get the best fuel mixture, turbo diesels are fun with nitrous on them.
IF YOU CALL IT NOS YOU DONT NEED IT😄