Wet nitrous oxide systems provide fuel enrichment by teeing off of the engine fuel rail and feeding it into the injection nozzle.
The ZEX™ Wet Nitrous Oxide System has the most advance features of any wet nitrous oxide system on the market. All components, such as the solenoids and activation electronics, are factory pre-assembled inside the Nitrous Management Unit. This ensures you will be spending less time in the garage installing the system and more time out having fun. The patent pending Fuel Shear technology used in the ZEX™ nitrous nozzle, places the enrichment fuel directly inside the high-speed nitrous oxide plume exiting the nozzle. This results in the most complete atomization of enrichment fuel possible. Super-fine atomization of enrichment fuel ensures maximum horsepower and eliminates fuel puddling that can cause intake backfires. Even the way the ZEX™ Nitrous System is activated is unique. Instead of relying on crude micro-switches or push buttons, the ZEX™ wet nitrous system uses advanced electronics to learn the throttle position sensor (TPS) voltage curve. It then programs itself for your specific vehicle and, when armed, will only activate the nitrous system at wide-open throttle. This ensures perfect engagement every time the nitrous system is used. Advanced features like this make the ZEX™ wet nitrous system the easiest to install, the most powerful, and the most reliable nitrous system on the market.
Our nitrous
kit is very universal by design. It works on most late model,
direct port fuel injection kits.
ZEX™
Nitrous Compatibility Checklist
Engine
must have a vacuum ported fuel pressure regulator
Throttle
position sensor voltage must pass the following test:
Locate
the T.P.S. (usually directly across from throttle linkage)
Turn
ignition to on position (do not start engine)
Using
a digital voltmeter, check each wire for a low voltage
reading of approximately 1 volt.
Only
one wire should have this low voltage with the throttle
closed
While
on that same wire, open the throttle completely and check
the voltage reading
If
your voltage reads 4.2 volts or higher, you are ready
to install your ZEX nitrous kit
How
much time can I expect installation to take?
A person
familiar with common hand tools should be able to complete the
installation in three to four hours. If you can get out of bed
by 8, it should be in before lunchtime.
Where
can I get the nitrous bottle filled?
Quality speed
shops will be able to fill the bottle. Alternatively, most welding
gas suppliers can fill the bottles.
Will
your kit work on my car if it does not have a vacuum operated fuel
pressure regulator?
No, our nitrous
kit is not compatible in your application due to the absence of
a vacuum ported fuel pressure regulator. The required fuel enrichment
comes by way of this style of fuel pressure regulator.
My car
has high mileage, is it safe to run nitrous on it?
High mileage
is not necessarily an indicator of a car's mechanical condition.
The better mechanical condition your car is in, the safer it is
to use any high performance product. If you are not sure on the
condition of your vehicle, take it to a qualified mechanic in
your area for a complete inspection.
How
much horsepower does the ZEX™ kit add?
The ZEX™
kit is adjustable in three horsepower increments. Jets are provided
that will give anywhere from 55hp to 125hp, depending on which
kit you purchase.
Do I
need to upgrade my fuel kit to use your kit?
Our kit
was designed and tested for use with stock fuel kits. It will
perform properly on stock and mildly modified engines, i.e. header,
K&N filter, exhaust, etc. If major modifications have been performed,
i.e. camshafts, heads, porting work, intake manifolds, etc. It
is strongly recommended that a fuel pump and injector upgrade
be performed on your engine before using your ZEX nitrous kit.
Do I
need to use different spark plugs when using the ZEX nitrous kit?
It is highly
recommended that you install non-projected nose style spark plugs
that are 2 heat ranges cooler than stock plugs. For best results,
use our Hyperformance™
triple electrode spark plugs. These spark plugs were designed
specifically for nitrous, turbo, and supercharged applications.
How
long will one bottle of nitrous last?
This totally
depends on which jetting is used. The 55hp shot will last around
3 minutes of continuous use. The 125hp shot will last just under
1.5 minutes of continuous use. Generally, since each race lasts
less than fifteen seconds, many races can be run from a single
bottle.
What
makes your ZEX™ kit better than other brands?
Our kit is
self regulating and adjusts fuel pressure according to bottle
pressure.
It is TPS
activated, which means no throttle switch brackets to rig up.
The control
box houses the solenoid for a cleaner installation.
We include
a one year warranty on our Zex kits.
The convenience
of toll-free support.
Finally,
we are confident that our kit is the easiest on the market to
install.
Awesome product, and one of the safest on the market.... I've been using ZEX N2O kits both dry and wet for years... never a problem, and allways good times.....:)
Great product. It's simple to install and easy. It's also safe to use. The zex kit uses a WOT switch to engage the nitrous at the best time. I would give this kit more then 5 stars!!!
romoracing reviewed ZEX Wet Nitrous Kits part # 82021-H
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