[Steppin Razor]

So why don't you remove the word "nitrous" from the description of this forum?

[blewbyu]

Or you could just change the name to "Power Adders"

[BAN SUVS]

Because the description of the NA forum is "All motor, all the time" and they'd have to change that too.

[Eric SS]

Nitrous forces more Oxygen, which is the main combustible component in a gasoline engine, into the cylinders than would be available at atmospheric conditions. And at the same time you are greatly raising the cylinder pressures, which is also not available at atmospheric conditions.

Thus, it is forced induction.

[SuperStyro]

Nitrous is injested into the engine with natural aspirations. It is not a forced induction.

Styro

[The ///Man]

This debate has been around forever, there is no definite answer, except it is always classified as a power adder, along with s/c and turbo, so why bitch and just live with it.

[Eric SS]

Nitrous is injested into the engine with natural aspirations. It is not a forced induction.

Styro

Not all true. Nitrous CAN cause a pressurized situation (although minute) in the intake and heads at times and can also force itself into cylinders.

Yes, it can not cause huge pressure differentials like Superchargers or turbochargers, but that does not mean you are not forcing extra oxygen into the cylinders because YOU ARE in fact forcing more oxygen into them. That's the whole point of nitrous; to force more oxygen into the cylinders than is available in the atmosphere.

EDIT: oh, and if those arguments don;t work, then the next best one I can give you is that that's how the admins want it so that's how it's gonna be

[SuperStyro]

Nitrous is injested into the engine with natural aspirations. It is not a forced induction.

Styro

Not all true. Nitrous CAN cause a pressurized situation (although minute) in the intake and heads at times and can also force itself into cylinders.

Yes, it can not cause huge pressure differentials like Superchargers or turbochargers, but that does not mean you are not forcing extra oxygen into the cylinders because YOU ARE in fact forcing more oxygen into them. That's the whole point of nitrous; to force more oxygen into the cylinders than is available in the atmosphere.

You are totally incorrect.

Nitrous chemically adds oxygen in to the combustion chamber. Nitrous comes out of the nozzle, preferred around 900 psi. This does not mean that the intake will see positive pressure. 900 psi is the pressure that keeps the N2O in a liquid until it reaches the intake. At approx. 565° F, the N2O will become Nitrogen and Oxygen. You get approx. 36% more oxygen in to the A/F charge. There is no way that it can cause a positive pressure in the intake do to the fact that at the other end is the air filter. The least resistance is at the air filter than at the valve. There for if there was a pressure building, it would bleed out of the air filter.

Think of 'forced induction' be able to 'push' the intake valve(s) open. Nitrous could not do this unless you were able to have the ability to seal the intake when the nitrous were to be released in to the intake. Your engine would stop aspirating unfortunately.

If you watch a boost/vac. gauge when N2O is being used, you will not see a positive pressure at all through any of the gears on the boost gauge.


Styro

[Eric SS]

I have ran nitrous on more vehicles than I can count.l And on those vehicles with a vacuum gauge, I have personally seen nitrous build minute amounts of manifold pressure compared to the same engine without nitrous.

Especially on F-bodies with Ram-Air. Even WITHOUT nitrous, the Ram-Air can cause a positive manifold pressure of about 1psi at WOT at high speeds.

The pressure coming into the manifold without nitrous in certain engines is basically stopped from creating more pressure in the engine by the aerodynamics of the intake (from before the filter all the way to the valves). But when you add nitrous into the manifold (or anywhere after the filter), you can basically allow the incoming air to overcome the aerodynamics (drag) and allow more air to be forced into the intake.

[SuperStyro]

I have ran nitrous on more vehicles than I can count.l  And on those vehicles with a vacuum gauge, I have personally seen nitrous build minute amounts of manifold pressure compared to the same engine without nitrous.

Especially on F-bodies with Ram-Air.  Even WITHOUT nitrous, the Ram-Air can cause a positive manifold pressure of about 1psi at WOT at high speeds. 

The pressure coming into the manifold without nitrous in certain engines is basically stopped from creating more pressure in the engine by the aerodynamics of the intake (from before the filter all the way to the valves).  But when you add nitrous into the manifold (or anywhere after the filter), you can basically allow the incoming air to overcome the aerodynamics (drag) and allow more air to be forced into the intake.

I can see Ram-Air bringing a positive pressure to the intake because of pro-stock race cars. Over 100% volumetric efficiency. I will agree with you here.

So are you saying N2O defies physics with the whole "...basically allow the incoming air to overcome the aerodynamics (drag) and allow more air to be forced into the intake." statement?

Styro

[Eric SS]

It's not about defying physics. It's about making something perform better than it was intending to, just like adding a turbo/super chargers. Modern gasoline engines are not very efficient. So anything that can be done to force more air into the cylinders and help their efficency, to me, is forced induction. It is basically taking an ineffeicent machine, and "forcing" it to be more efficient by "forcing" more through it into the cylinders than it was designed to hold.

But, we could go on and on and both of us will still think we are right. So let;s just drop it and let the forums go on being how they are

[Eric SS]

The Ram Air on T/As is a piece of caca.  Also, the scoop is too low to even do anything.  It's in low pressure zone right against the hood.....why do you think Pro Stock scoops are so high??

I always thought it was high because the height allowed it to start to redirect the air from flowing straight, to flowing down through the carbourator/throttle body with a big of a radius as possible but not to big to be so un-aerodynamic.

Basically the same reason that you want the longest short side radius in the intake and exhaust as possible. You don;t want the air to take to sharp of a turn right away.

[SuperStyro]

It's not about defying physics. It's about making something perform better than it was intending to, just like adding a turbo/super chargers.  Modern gasoline engines are not very efficient.  So anything that can be done to force more air into the cylinders and help their efficency, to me, is forced induction.  It is basically taking an ineffeicent machine, and "forcing" it to be more efficient by "forcing" more through it into the cylinders than it was designed to hold.

But, we could go on and on and both of us will still think we are right.  So let;s just drop it and let the forums go on being how they are   

I am sorry but with your statements you are drifting in to your own little hole. Nothing is being forced in with N20. Turbo/Supercharging is forcing more air in by increasing the volume of air entering the cylinders.

Any way, had to get some last second blab in to, but I agree with dropping the situation because it looks like we are both stuck on our sides.

Nice debate by the way


Styro