FI & NA, not which is better, but...
Forced induction means you have some sort of agent pushing positive pressure into the intake manifold. (ie: turbo, supercharger)
N/A means all air entering the intake manifold is from outside air. 100% O.A. intake, and there is no sort of agent pushing positive pressure into the intake manifold.
It's the best way I can describe it after my long work day. Try http://www.howstuffworks.com to get a better explanation.
N/A means all air entering the intake manifold is from outside air. 100% O.A. intake, and there is no sort of agent pushing positive pressure into the intake manifold.
It's the best way I can describe it after my long work day. Try http://www.howstuffworks.com to get a better explanation.
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shermanyang
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