In Reply to: What does Nitrus do? How does it work?any1 use it? posted by curious EOM on May 15, 1999 at 15:05:03:
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Nitrous oxide (N2O) breaks down into nitrogen and oxygen when heated in the cylinders. It contains more oxygen than air, so by displacing air with nitrous, you get more oxygen in the engine. So you can add more fuel and end up with more power. An additional benefit is that the nitrous is sprayed in as a liquid, which evaporates and makes the intake charge cooler and denser, packing yet more air in the cylinders.
The problem is that usually a nitrous kit will add so much more oxygen that your fuel injectors can't supply enough fuel. You can get additional injectors, or upgrade your existing injectors and reprogram the computer, or hack together something that raises the fuel pressure. If you don't add enough extra fuel, the extra oxygen will get VERY hot and bothered during combustion and start attacking your engine, burning up valves and gaskets. You can very quickly and easily destroy a $6000 engine with a $400 nitrous kit.
The good kits include injector and fuel pump upgrades and computer controllers, and cost well upwards of $1000.