All the power comes from the fuel, not the nitrous:
Nitrous oxide is simply a tool that allows you to
adjust how much and how quickly the engine burns the fuel. If the fuel isn't there, the power won't be either.
Avoid detonation at all times:
Nitrous enhanced detonation is much more damaging than detonation that
occurs when naturally-aspirated due to the increased amount of fuel available for releasing energy and the fact
that more oxygen is present.
When system is activated, if something doesn't feel or sound right, BACK OFF:
If you hear
any detonation or feel anything unusual, get off the throttle. It's a lot easier to check everything over than it is to
just try to drive through it and damage expensive parts. Don't activate or have the system activated when you hit
the stock rev limiter. The stock rev limiter is a fuel cutoff. If you cut fuel while you're injecting nitrous, you're
instantly very lean. This momentary lean condition has the potential of causing engine damage.
Spark plugs and nitrous performance:
Quite often, factory
type, wide-gap, projected nose spark plugs will produce a detonation
condition after a few seconds of nitrous use. The solution to the
problem is to install spark plugs that have a colder heat range and
proper ground strap design for nitrous use. Consult your preferred
spark plug manufacturer to ensure you install the correct plugs for the
nitrous level you choose to run.
Reading Plugs & Tuning ZEX Nitrous Kit:
If you've installed larger injectors or have otherwise
increased the capacity of your fuel system, you need to read the following. Because the real limit of how much
power you make with the ZEX™ Nitrous Kit is your car's fuel system, you need to tune up to that limit. Start
with the lowest power level nitrous jet and corresponding fuel metering jet. Make a full throttle pass at the drag
strip and read the plugs. Not enough nitrous/too much fuel results in a sooty, black plug coloration. This
coloration means that the fuel mixture is too rich. Too much nitrous will exhibit high heat in the form of a bluish
or rainbow-like coloring on the plug's metal surfaces. This means you're engine is about to, or is, detonating. If
this is observed, ensure the proper spark plugs are installed, reduce nitrous/increase fuel delivery, and ensure the
proper grade of fuel is being used. When you check the spark plugs, check EVERY plug. Don't just spot check
the easiest plug you can access. Due to the wide possibility of air/fuel mixture variations, you need to check
every single plug for signs of detonation or other problems. If your plugs indicate too much fuel, trim the fuel
delivery down by installing smaller metering jets. If you are too lean/not enough fuel, you need to install a larger
metering jet to increase fuel delivery.
Part #82003
ZEX™ Hyperformance plugs
are optimized for nitrous use.
