Fi & N/a
 

I always see people saying go FI which I think means Forced Induction..right?? And sometimes they so go N/A...now what does N/A stand for or mean?

not aplicable

Naturally Aspirated:yes:

yes, which means that you are not running a turbo charged engine, a supercharged, or nitrous

are you sure about the nitrous? its not changing the air/gas ratio if i'm not mistaken

it does, thats how it makes power. n2o is 2 particals of nitrogen, and one of oxyegn, when it is compressed(not heated) the gas breaks down and splits to into n2 and o2 o2 is a much bigger partical than n2, and since thats a majority of whats in the combustion chamber it raises your o2 % way above the atmospheric amount, (7% or whatever it is) to well above 30%. and o2 one of the main variables in how much power an engine can produce, since gas is not flamable unless it is vaporized in oxygen, more o2=more power. theres alot more to nitrous, but you get the jist of it