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RE: Nitrous FAQ

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RE: Nitrous FAQ - 8/23/2007 9:13:13 PM   
ryank327



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Forced induction is anything that adds oxygen to the combustion cycle. Nitrous does this therefore it is considered forced induction.

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RE: Nitrous FAQ - 8/24/2007 3:17:12 PM   
packman5280

 

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well, some have their doubts about wikipedia, but this is from their site "A Nitrous Oxide system is not a form of forced induction. It's simply an oxidizer that is injected either directly (direct port) or by a single fogger...with fuel(wet nitrous system) or without fuel(dry nitrous system)."

regardless, when someone says forced induction, it means boost, which is the state of greater than atmospheric pressure in your intake, which does not occur with nitrous.  true, with notrous you are putting in more oxygen, but there is more oxygen because the molecules are denser, not because it is under pressure.

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RE: Nitrous FAQ - 8/24/2007 6:21:20 PM   
ryank327



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Putting a gas under more pressure is condensing it. Therefore making it more dense. Just because the density is changed via a different method doesn't make it any different.  Whether you add more atmospheric air or add a gas rich in oxygen they both increase the density of oxygen in the combustion area. It doesn't matter if you get that extra oxygen from a tank, supercharger, turbocharger or whatever, adding oxygen to the combustion area is forced induction.

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RE: Nitrous FAQ - 8/24/2007 10:11:24 PM   
Mr Mobsta Man


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quote:

ORIGINAL: packman5280

well, some have their doubts about wikipedia, but this is from their site "A Nitrous Oxide system is not a form of forced induction. It's simply an oxidizer that is injected either directly (direct port) or by a single fogger...with fuel(wet nitrous system) or without fuel(dry nitrous system)."

regardless, when someone says forced induction, it means boost, which is the state of greater than atmospheric pressure in your intake, which does not occur with nitrous.  true, with notrous you are putting in more oxygen, but there is more oxygen because the molecules are denser, not because it is under pressure.

Wikipedia can be edited by anyone.  Don't believe something just because it says so.  Forced intro does not mean boost.  It means you force something to be introduced, hence the name.  It is greater than atmospheric pressure also, the bottles are over 900 psi optimally and once it gets past the solenoids it is around I think 20-40psi so that is higher that atmospheric pressure...   When someone says forced introduction you think boost because generally they are talking about a turbo.

< Message edited by Mr Mobsta Man -- 8/24/2007 10:15:08 PM >


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RE: Nitrous FAQ - 8/24/2007 10:21:28 PM   
SovXietday


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Forced induction simply implies that there is more oxygen forced into the engine. Nitrous does just that.

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RE: Nitrous FAQ - 8/24/2007 10:29:09 PM   
Peg_Leg


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nice write up

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RE: Nitrous FAQ - 8/24/2007 10:38:20 PM   
packman5280

 

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the pressure in the intake does not go up when you spray, and i started off by saying wiki was a questionable source, no need to bold it.

to me, forced means you are forcing more air in. think about it. how does the air/fuel mix get into the cyl on an n/a motor? it is sucked in when the piston moves down. until you add a turbo or SC which force it in. if the air/fuel mix is sucked into the cylinder by the piston, then you aren't forcing it in weather or not there is nitrous involved. it is only forced in when it is pumped in at higher than atmospheric pressure, ie a turbo or SC.

that's my view, sorry to hijack the thread.


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RE: Nitrous FAQ - 8/25/2007 5:15:54 AM   
ryank327



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No no no You're looking at it all wrong. FI has nothing to do with the method of inroduction. It all has to do with increasing the oxygen content inside the combustion chamer, not the intake or anywhere else, just the one place that the power is created . Technically you are forcing the nitrous in because without the setup would that occur naturally? I don't think so.


quote:

   "Forced Induction" is the process of using a mechanical system to "force" more air into an engine. This includes Superchargers, Turbochargers, Nitrious systems, and other mechanical systems, but not hood scoops which just direct outside air into the engine. Both Superchargers and Turbos use a compressor to "force" air into the engine, making it more dense (i.e. more oxygen). When a proportionately larger amount of fuel is added to the denser air charge, the mixture creates a much larger explosion and thus more power from the engine. Nitrous Oxide Systems ("NOS") works by directly injecting Nitrous Oxide (NO2) into the engine. The higher concentration of oxygen found in NO2 (compared to air) and more fuel leads to the same effect as Superchargers and Turbos. Although the basic concepts are similar, each differs in their design and execution.



As quoted from http://www.musclecarclub.com/library/tech/forced-induction.shtml

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RE: Nitrous FAQ - 8/25/2007 6:06:54 AM   
packman5280

 

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i guess ford racing is looking at it wrong too
http://www.fordracing.com/glossary/definition/index.asp?glossaryid=45
http://www.fordracing.com/glossary/definition/index.asp?glossaryid=67

and answers.com
http://www.answers.com/topic/forced-induction

and be carefull with this link, NSFW, the next word below forced induction is, well, urban, not urbane.
http://www.urbandictionary.com/define.php?term=compressor&page=2

< Message edited by packman5280 -- 8/25/2007 6:09:29 AM >

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RE: Nitrous FAQ - 8/25/2007 6:16:13 AM   
packman5280

 

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more from answers.com

The objective of a turbocharger is to improve upon the size-to-output efficiency of an engine by solving for one of its cardinal limitations. A naturally aspirated automobile engine uses only the downward stroke of a piston to create an area of low pressure in order to draw air into the cylinder. Since the number of air and fuel molecules determine the potential energy available to force the piston down on the combustion stroke, and because of the relatively constant pressure of the atmosphere, there ultimately will be a limit to the amount of air and consequently fuel filling the combustion chamber. This ability to fill the cylinder with air is its volumetric efficiency. Since the turbocharger increases the pressure at the point where air is entering the cylinder, and the amount of air brought into the cylinder is largely a function of time and pressure, more air will be drawn in as the pressure increases. Thus, the intake pressure can be controllably increased by the turbocharger.

The application of a compressor to increase pressure at the point of cylinder air intake is often referred to as forced induction. Centrifugal superchargers operate in the same fashion as a turbo; however, the energy to spin the compressor is taken from the rotating output energy of the engine's crankshaft as opposed to exhaust gas. For this reason turbochargers are ideally more efficient, since their turbines are actually heat engines, converting some of the kinetic energy from the exhaust gas that would otherwise be wasted, into useful work. Contrary to popular belief, this is not totally "free energy," as it always creates some amount of exhaust backpressure which the engine must overcome. Superchargers use output energy to achieve a net gain, which is at the expense of some of the engine's total output.


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