LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

differences between N/A and all-motor

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Old Nov 18, 2004 | 10:16 AM
  #46  
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Re: differences between N/A and all-motor

Originally Posted by TQdrivenws6
I always took it to be All motor = the motor on its own, doing its own thing. N/A nowhere says no nitrous in its literal description. I agree that nitrous is a power adder, but it does not pressureize the intake charge at all, if it did, it would just shoot out of the filter, as there is just one (or more) nozle(s) that expel the gas.
Thank god I'm not the only person on the board who understands this.
Old Nov 18, 2004 | 10:38 AM
  #47  
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Re: differences between N/A and all-motor

They are the same!


Nitrous is not N/A! Where do you get the power from then? It's from the Oxygen, it is forced in as a liquid and rapidally expands.....how can that be N/A?? It is the same as forcing it it with a blower. It's really a quite simple idea.

N/A and all motor have been the same.
Old Nov 18, 2004 | 10:42 AM
  #48  
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Re: differences between N/A and all-motor

I agree that nitrous is a power adder, but it does not pressureize the intake charge at all, if it did, it would just shoot out of the filter, as there is just one (or more) nozle(s) that expel the gas.
Nitrous doesn't pressurize the intake it pressurizes each cylinder when it atomizes.
Old Nov 18, 2004 | 10:57 AM
  #49  
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Re: differences between N/A and all-motor

Nitrous and forced induction are both doing the same thing, adding more molecules of oxygen to the intake charge, whether it be forced or not. The atmosphere only has so much oxygen molecules; any process that puts more oxygen molecules into a cylinder than the engine can bring in itself is therefore not N/A or all-motor. N/A = All Motor; N20, S/C, and Turbo are all non-N/A.
Old Nov 18, 2004 | 10:59 AM
  #50  
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Re: differences between N/A and all-motor

Originally Posted by White Knight
Nitrous doesn't pressurize the intake it pressurizes each cylinder when it atomizes.
Ok, so what forced it in there making it forced induction? If it isn't forced induction, I believe that to be normally asperated, or not assisted in pulling the air/fuel charge in.
Old Nov 18, 2004 | 12:05 PM
  #51  
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Re: differences between N/A and all-motor

You Nitrous = N/A people are too stubborn.
Old Nov 18, 2004 | 12:19 PM
  #52  
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Re: differences between N/A and all-motor

Actually, I think Cywnn has a valid point; albeit somewhat lame and useless. By it's very nature, the motor still DRAWS the mixture (either O2 or N2O) in on it's own when the piston moves downward, and that's ALL "naturally aspirated" refers to. It's about HOW it gets there, not WHAT is in there, or what it's going to do.

The effect of the increased cylinder pressure caused by the nitrous occurs after the intake, IN the cylinder during the compression stroke, so the method of mixture induction is pretty much irrelavent at that point. The nitrous was still injested through N/A means. Does that make it an N/A motor...technically I suppose it does.

"N/A" and "all motor" aren't equivalent terms; one solely describes the intake method, the other describes the entire system, minus any power adders of course. N/A versus Forced Induction is a more appropriate comparison, and it should be "All motor" versus "power adder". Nitrous injection is more akin to fuel injection, not forced induction or N/A.

On a tangent, it still drives me crazy when when people refer to "N20" as "NOS"...or say they're going to make a "Xerox" of something...LOL!
Old Nov 18, 2004 | 12:33 PM
  #53  
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Re: differences between N/A and all-motor

I had no idea that people were so lost when it comes to this topic.

N/A=all motor. N2O, turbo, supercharger=forced induction. Therefore, N2O doesn't=N/A.

Naturally aspirated refers to what an engine can do without the aid of power adders simply put. Raw, muscle, all motor, n/a are all just different ways of saying the same thing.
Old Nov 18, 2004 | 12:53 PM
  #54  
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Re: differences between N/A and all-motor

How the hell is throwing nitrous in with the intake natural? Its not! Throwng anything other than normal fuel and air meant for the engine is not naturally aspirated. Nor is it generally accepted to be N/A.

http://en.wikipedia.org/wiki/Naturally_aspirated_engine

Read the bottom line of that, do any of the NASCAR, Indycar, and Formula One events allow nitrous in a N/A car? I honestly don't know because I don't really watch that stuff So someone fill in the gap here... If they do I'll spring for the N/A nitrous thing.

"Air or fuel-air mixture is forced into the cylinders by natural atmospheric pressure upon opening of the inlet valve or valves"

Now, wouldn't throwing in pressured gas/liquid into the intake charge violate the "natural atmostpheric pressure" since its uhh from a bottle and pressurized? Its not like blowing the car but it is "added" on top of what would normally be there. I would even go so far as to say its forced induction since your "forcing" NO2 into the intake, it may not be compressed like a turbo/supercharged systems intake charge but its MORE than just Air and Fuel. Ie it is Forced into the Induction process.

This site sees it that way:
http://www.domestictunerz.com/lofive...hp?t11127.html
Same with this one (Under the modified street "unblown" category):
http://carpoint.ninemsn.com.au/Tig/M...ointau&id=6541
Malaysia thinks so too:
http://www.pitstop.com.my/dragrace/rules.asp
And other sites never refer to a N/A engine as having nitrous.
Old Nov 18, 2004 | 01:09 PM
  #55  
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Re: differences between N/A and all-motor

Now lest talk about something really important: breast implants real or fake?

Last edited by 944v8inDFW; Nov 18, 2004 at 01:30 PM.
Old Nov 18, 2004 | 01:15 PM
  #56  
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Re: differences between N/A and all-motor

Originally Posted by 944v8inDFW
.....Now lest talk about something really important: breast implants real or fake?
I choose option C...FUN!
Old Nov 18, 2004 | 01:22 PM
  #57  
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Re: differences between N/A and all-motor

You are forcing nitrous into your intake stream. True its not the same as F/I, but it does affect pressurize to some extent. Nitrous does force itself into the intake (though this is not how nitrous makes power) therefore it is not N/A.

On the other hand what about Ram Air? Is it F/I or N/A?
Just when you thought this thread couldn't be anymore stupid.

Jon
Old Nov 18, 2004 | 01:27 PM
  #58  
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Re: differences between N/A and all-motor

Nitrous is forced induction as well. True, the bottle pressure does nothing for pressurizing the intake. The extra pressure comes when the mixture goes boom. Extra air is forced into the motor more than N/A would allow via chemicals.
Old Nov 18, 2004 | 01:36 PM
  #59  
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Re: differences between N/A and all-motor

By comparison terms as far as listing modifications and such, N2O does not = N/A. It may not by forced induction, but it is a power adder. The way "N/A" is used in todays terms is equal to what "all motor" was used for in the past.

You can sit there and try to justify why it is, using scientific argument and such, but by societies definition, N2O does not equal N/A.

Period.
Old Nov 18, 2004 | 01:43 PM
  #60  
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Re: differences between N/A and all-motor

as·pi·rate ( P ) Pronunciation Key (sp-rt)
tr.v. as·pi·rat·ed, as·pi·rat·ing, as·pi·rates

Medicine. To remove (liquids or gases) by means of a suction device.

Well seeing as how aspiration has to do with suction, which would be the vaccum created by the intake stroke, then technically nitrous is still N/A because the engine still gets it's air by the use of vaccum, unlike forced induction where there is no suction in the intake.

I setteled it by being intellectual...I feel funny



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