differences between N/A and all-motor
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Joined: Mar 2004
Posts: 182
Re: differences between N/A and all-motor
Originally Posted by Rpm280
OMG 
I can't believe some of the post on this thread . NA means naturally aspirated. It is THE SAME AS ALL MOTOR. Nitrous is not natural aspiration. You can try and twist it any way you want, but our atmosphere does not NATURALLY force severall hundred extra hp worth of oxygen into a given engine. Only way to do that naturally is with more radicall engine parts. Nitrous is a POWER ADDER.
(And yes i know cams and heads ADD power, but unless someone is trying to be an idiot, they get the point.)
Naturally aspirated = NO power adders. Nitrous is a power adder, and in a similar way to blowers and turbos, is basically forcing or adding more oxygen than an engine can NORMALLY BREATH in.
I can't believe so many people are posting that nitrous is NA. I thought stuff like that was common sense to even novice or newer "car buffs".
Like someone said before, try to spray in a Naturally aspirtated class like Pro Stock and you will be out.
I can't believe some of the post on this thread . NA means naturally aspirated. It is THE SAME AS ALL MOTOR. Nitrous is not natural aspiration. You can try and twist it any way you want, but our atmosphere does not NATURALLY force severall hundred extra hp worth of oxygen into a given engine. Only way to do that naturally is with more radicall engine parts. Nitrous is a POWER ADDER.
(And yes i know cams and heads ADD power, but unless someone is trying to be an idiot, they get the point.)
Naturally aspirated = NO power adders. Nitrous is a power adder, and in a similar way to blowers and turbos, is basically forcing or adding more oxygen than an engine can NORMALLY BREATH in.
I can't believe so many people are posting that nitrous is NA. I thought stuff like that was common sense to even novice or newer "car buffs".
Like someone said before, try to spray in a Naturally aspirtated class like Pro Stock and you will be out.
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Joined: Mar 2004
Posts: 182
Re: differences between N/A and all-motor
From webster's:
So explain to me how nitrous is NOT using atmospheric pressure to get the a/f mitxure into the cylinders.....
A naturally-aspirated engine (aspiration meaning breathing) refers to an internal combustion engine (normally petrol or diesel powered) that is neither turbocharged nor supercharged. Most automobile engines are naturally-aspirated, though turbochargers and superchargers have enjoyed periods of success, particularly in the late 1980s and the current 2000s era.
Air or fuel-air mixture is forced into the cylinder by natural atmospheric pressure upon opening of the inlet valve or valves. The pressure within the cylinder is lowered by the action of the cylinder moving away from the valves (so as to expand the volume available for incoming air). In some cases the lowering of the cylinder pressure is enhanced by a combination of the speed of the exhaust gases leaving the cylinder and the closing of the exhaust valve at the appropriate time. A tuned exhaust can help with this but generally only works at a narrow range of engine speeds and hence is most useful in very high performance cars, aircraft and helicopters. Most NA engines today make use of Variable Length Intake Manifolds to harness Helmholtz Resonance, which has a mild forced induction effect but is not be considered true forced induction.
Natural aspiration gives less power than either turbo or supercharged engines of similar capacity but is cheaper to produce and generally more fuel efficient.
Many racing series specify NA engines to limit power and speed. NASCAR, Indycar, and Formula One are all in this category. Naturally-aspirated engines have been mandated in Formula One since 1989, in order to curb the excessive powers being developed by engines with superchargers or turbochargers.
Air or fuel-air mixture is forced into the cylinder by natural atmospheric pressure upon opening of the inlet valve or valves. The pressure within the cylinder is lowered by the action of the cylinder moving away from the valves (so as to expand the volume available for incoming air). In some cases the lowering of the cylinder pressure is enhanced by a combination of the speed of the exhaust gases leaving the cylinder and the closing of the exhaust valve at the appropriate time. A tuned exhaust can help with this but generally only works at a narrow range of engine speeds and hence is most useful in very high performance cars, aircraft and helicopters. Most NA engines today make use of Variable Length Intake Manifolds to harness Helmholtz Resonance, which has a mild forced induction effect but is not be considered true forced induction.
Natural aspiration gives less power than either turbo or supercharged engines of similar capacity but is cheaper to produce and generally more fuel efficient.
Many racing series specify NA engines to limit power and speed. NASCAR, Indycar, and Formula One are all in this category. Naturally-aspirated engines have been mandated in Formula One since 1989, in order to curb the excessive powers being developed by engines with superchargers or turbochargers.
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Re: differences between N/A and all-motor
Originally Posted by turbo_Z
This is one of the most retarded arguements I have ever seen on this board in 3 years.
N/A equals what the motor can do without the aid of N2O, turbo or S/C.
N/A equals what the motor can do without the aid of N2O, turbo or S/C.
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Joined: Mar 2004
Posts: 182
Re: differences between N/A and all-motor
Here's another thread that supports my argument, some people are just too closed-minded to think outside of the box.
http://www.ls1tech.com/forums/archiv...x.php/t-126668
http://www.ls1tech.com/forums/archiv...x.php/t-126668
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Joined: Jun 2004
Posts: 717
Re: differences between N/A and all-motor
Originally Posted by 944v8inDFW
DAMN!
guess all this brings up my pet peve TRUE DUALS. What there are false duels? Did they lie under oath? you get the idea apples, oranges or in some cases chainsaws, footballs
guess all this brings up my pet peve TRUE DUALS. What there are false duels? Did they lie under oath? you get the idea apples, oranges or in some cases chainsaws, footballs
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Joined: Feb 2004
Posts: 210
From: Midland, TX
Re: differences between N/A and all-motor
I still think N/A = all motor. You're saying that it's all natural and i read most of that thread saying that "its natural in the atmosphere" and that it's not "forcing air into the engine." It's not forcing air, it's subsituting oxygen. Isn't the whole point of naturally aspirating is what the engine itself can make using natural air supply and with cylinderpressures regularly seen in natural enviroment? Nitrous adds oxygen which aids in the burn of the fuel and it might not be "forcing" anything but it boost cylinder pressure just like boost. It seems to me like you guys would be fighting to say an old man on an oxygen tank is breathing normally because the oxygen can be found in the atmosphere even though he is unable to take it in on his own.
William
William
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Joined: Apr 2000
Posts: 2,671
From: T E X A S
Re: differences between N/A and all-motor
Go out to a race and run in a motor class with dope and see how quick you get DQ from the race.
All Motor/NA/Motor = Just on motor, no power adder of any kind
In a nitrous car
Motor: What the car runs off the bottle
Dope/Gas/Juice/Nitrous: Just that what it runs on the bottle
All Motor/NA/Motor = Just on motor, no power adder of any kind
In a nitrous car
Motor: What the car runs off the bottle
Dope/Gas/Juice/Nitrous: Just that what it runs on the bottle
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Joined: May 2003
Posts: 6,661
From: LA (lower Alabama)
Re: differences between N/A and all-motor
Originally Posted by Cwynn
From webster's:
So explain to me how nitrous is NOT using atmospheric pressure to get the a/f mitxure into the cylinders.....
So explain to me how nitrous is NOT using atmospheric pressure to get the a/f mitxure into the cylinders.....
You seem to forget that N2O has 900-1000lbs line pressure spraying into the port.If ya think that don't speed things up.Well,it would be hard to say how ya think,if you think a N2O engine is NA.
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Joined: Jul 2003
Posts: 61
Re: differences between N/A and all-motor
You guys are kidding right?
Nitrous is a chemical form of supercharging. ITS A POWER ADDER. When you inject it into a manifold IT EXPANDS rapidly Filling the void and VAPORIZES.
N2O is two parts nitrgen to one part oxygen. The surrounding air conains about 21% oxygen. At around 575'F the molcules separate. 1/3 or 331/3% is oxygen to burn!!!
N/A and All motor IS THE SAME!
Good grief!
Nitrous is a chemical form of supercharging. ITS A POWER ADDER. When you inject it into a manifold IT EXPANDS rapidly Filling the void and VAPORIZES.
N2O is two parts nitrgen to one part oxygen. The surrounding air conains about 21% oxygen. At around 575'F the molcules separate. 1/3 or 331/3% is oxygen to burn!!!
N/A and All motor IS THE SAME!
Good grief!
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Joined: Jul 2000
Posts: 1,880
From: Norfolk, VA. USA
Re: differences between N/A and all-motor
Wow, it made it 2 pages.
Naturally Aspirated is the technical term for All Motor.
S/C, Turbo, and Nitrous are all power adders that increase cylinder pressure artificially.
Naturally Aspirated is the technical term for All Motor.
S/C, Turbo, and Nitrous are all power adders that increase cylinder pressure artificially.
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Joined: Aug 2000
Posts: 842
From: San Diego, CA
Re: differences between N/A and all-motor
Originally Posted by turbo_Z
This is one of the most retarded arguements I have ever seen on this board in 3 years.
N/A equals what the motor can do without the aid of N2O, turbo or S/C.
N/A equals what the motor can do without the aid of N2O, turbo or S/C.
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Joined: Oct 2003
Posts: 1,454
From: MN/WI
Re: differences between N/A and all-motor
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.