has a higher oxygen content than ambient air, this along with fuel you add allow for almost all of the power gain...
Why does nitrous create power?
Thread Starter
TECH Enthusiast
Joined: Nov 2004
Posts: 600
Likes: 0
From: Coppell,TX
Why does nitrous create power? I know nitrous is cold and a colder mixture can increase your VE because the air is denser. However, i dont believe this accounts for all the power increase.
Does Nitrous have more oxygen content than the air outside?
This would make sense because then nitrous would increase the VE because there is no junk left to push out of the engine. In other words, the cylinder would fill up with more actual Air/Fuel mixture instead of crap in the air.
Or does nitrous raise the pressure inside the manifold?
I highly doubt it is possible to spray that much nitrous and survive. Plus, nitrous seems to be drawn into the manifold and still make power, more power than n/a anyways.
Im no expert. In fact, i've never even built an engine before. Just read alot of LS1Tech.
PS: I was reading a locked thread. Seems to be the argument they were having but there was alot of other junk included that was not allowing them to really talk about it. https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Does Nitrous have more oxygen content than the air outside?
This would make sense because then nitrous would increase the VE because there is no junk left to push out of the engine. In other words, the cylinder would fill up with more actual Air/Fuel mixture instead of crap in the air.
Or does nitrous raise the pressure inside the manifold?
I highly doubt it is possible to spray that much nitrous and survive. Plus, nitrous seems to be drawn into the manifold and still make power, more power than n/a anyways.
Im no expert. In fact, i've never even built an engine before. Just read alot of LS1Tech.
PS: I was reading a locked thread. Seems to be the argument they were having but there was alot of other junk included that was not allowing them to really talk about it. https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Well here's a quote for the Nitrous FAQ at the top of the Nitrous section. You really should take a look at it.
Nitrous oxide is made up of 2 parts nitrogen and one part oxygen (36% oxygen by weight). During the combustion process in an engine, at about 572 degrees F, nitrous breaks down and releases oxygen. This extra oxygen creates additional power by allowing more fuel to be burned. Nitrogen acts to buffer, or dampen the increased cylinder pressures helping to control the combustion process. Nitrous also has a tremendous "intercooling" effect by reducing intake charge temperatures by 60 to 75 degrees F.
Thread Starter
TECH Enthusiast
Joined: Nov 2004
Posts: 600
Likes: 0
From: Coppell,TX
ok, so does nitrous have a higher oxygen content than air, and therefore more nitrous in the cylinder means more oxygen than standard air? Is that why? In other words, my first explanation.
Thats how I interpreted that part.
Thats how I interpreted that part.
yes it does its like having compressed oxygen(sort of). Nitrous is 1 part nitrogen and two parts oxygen. When using nitrous it allows you to use more fuel. So now you have more oxygen and more fuel in the cylinder which creats a larger explosion=more power.
About 21% of the air you breathe is oxygen atoms. If you add "nitrous" gas (2 atoms oxygen and 1 nitrogen and some sulpher dioxide) to the "air" going in your motor, you in effect create a higher percentage of oxygen. In the case of an LS1, the computer gets a message that there is more oxygen and the computer's program adds more gasoline. You should create more power with a properly tuned engine.
Trending Topics
Thread Starter
TECH Enthusiast
Joined: Nov 2004
Posts: 600
Likes: 0
From: Coppell,TX
iono someone needs to add this to the FAQ instead of just saying its 36% oxygen, that really doesnt mean much when not many people actully know ambient air's oxygen content.
I suggest putting
"Nitrous makes more power than N/A because it increases the oxygen content of the ambient air (nitrous is about 36% oxygen, and ambient air is only about 20-30%) therefore more fuel can be added, and a larger explosion can occur in the cylinder, which means more power. Along with this an Intercooling affect of the cold nitrous can drop the intake air tempature up to 70degrees allowing for a denser Air/Fuel mixture, and more power."
Iono, that makes more sense to me than what is in the FAQ.
I suggest putting
"Nitrous makes more power than N/A because it increases the oxygen content of the ambient air (nitrous is about 36% oxygen, and ambient air is only about 20-30%) therefore more fuel can be added, and a larger explosion can occur in the cylinder, which means more power. Along with this an Intercooling affect of the cold nitrous can drop the intake air tempature up to 70degrees allowing for a denser Air/Fuel mixture, and more power."
Iono, that makes more sense to me than what is in the FAQ.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Resident
Joined: Dec 2004
Posts: 905
Likes: 0
Originally Posted by SSDriver
yes it does its like having compressed oxygen(sort of). Nitrous is 1 part nitrogen and two parts oxygen. When using nitrous it allows you to use more fuel. So now you have more oxygen and more fuel in the cylinder which creats a larger explosion=more power.
I use it all the time. 
im pretty sure its chemical compostion consists of ONE oxygen atom attached to TWO nitrogen atoms which gives the oxygen about 36% of the atoms total wieght. The chemical properites of nitrous oxide make it an almost perfect catalyst for combustion . Nitrous oxide quickly expands from liquid to gas (boils) when released into the intake charge. As a secondary benefit a large amount of heat energy is absorbed by the nitrous during its rapid expansion through a process loosely termed as the " latent heat of vaporization.) A process in which a boiling liquid will absorb heat energy as it changes (expands) from a liquid to a gas. The same cause and effect makes spray deodorant cold when it is apllied to the skin and propane gas valve freeze over w/ ice when they are opened to atmosphere. also nitrous oxide remains suspended once converted from liquid to a gas, which allows it to mix with fuel.
--Ron
--Ron
Last edited by Hi-Po; Dec 5, 2005 at 02:41 AM.
Originally Posted by Hi-Po
im pretty sure its chemical compostion consisys of ONE oxygen aton attached to TWO nitrogen atoms which gives the oxygen about 36% of the atoms total wieght.
Originally Posted by SSDriver
Your definitly right I wrote it backwards. Same concept though.
The average bottle is a 20 pounder and with a street V8 that might be worth 20 seconds of use.
Anyone have different results here?
Q: How long will the bottle last?
A: This largely depends on the type of nitrous kit and jetting used. For example, a 125 HP Power Shot kit with a standard 10 lb. capacity bottle will usually offer up to 7 to 10 full quarter-mile passes. For power levels of 250 HP, 3 to 5 full quarter-mile passes may be expected. If nitrous is only used in 2nd and 3rd gears, the number of runs will be more.
quoted from FAQ.
A: This largely depends on the type of nitrous kit and jetting used. For example, a 125 HP Power Shot kit with a standard 10 lb. capacity bottle will usually offer up to 7 to 10 full quarter-mile passes. For power levels of 250 HP, 3 to 5 full quarter-mile passes may be expected. If nitrous is only used in 2nd and 3rd gears, the number of runs will be more.
quoted from FAQ.
Closed ex-Sponsor Account
iTrader: (1)
Joined: Jul 2004
Posts: 2,797
Likes: 0
From: Wichita Falls, TX
Originally Posted by Spenser309
I know nitrous is cold and a colder mixture can increase your VE because the air is denser. However, i dont believe this accounts for all the power increase.
Does Nitrous have more oxygen content than the air outside?
This would make sense because then nitrous would increase the VE because there is no junk left to push out of the engine. In other words, the cylinder would fill up with more actual Air/Fuel mixture instead of crap in the air.
Or does nitrous raise the pressure inside the manifold?
I highly doubt it is possible to spray that much nitrous and survive. Plus, nitrous seems to be drawn into the manifold and still make power, more power than n/a anyways.
Im no expert. In fact, i've never even built an engine before. Just read alot of LS1Tech.
PS: I was reading a locked thread. Seems to be the argument they were having but there was alot of other junk included that was not allowing them to really talk about it. https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Does Nitrous have more oxygen content than the air outside?
This would make sense because then nitrous would increase the VE because there is no junk left to push out of the engine. In other words, the cylinder would fill up with more actual Air/Fuel mixture instead of crap in the air.
Or does nitrous raise the pressure inside the manifold?
I highly doubt it is possible to spray that much nitrous and survive. Plus, nitrous seems to be drawn into the manifold and still make power, more power than n/a anyways.
Im no expert. In fact, i've never even built an engine before. Just read alot of LS1Tech.
PS: I was reading a locked thread. Seems to be the argument they were having but there was alot of other junk included that was not allowing them to really talk about it. https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Nitrous by itself can not pressurize and intake system. You can inject more nitrous than an engine can handle.
Now the means of the extra power is the additional fuel you must add to the system. This is were the extra power comes from mostly, and a some cooling effect of the intire intake track..Just adding nitrous with no fuel will yeild very little power and usually hurts parts..
Ricky