A. Of course, diesels love nitrous
and are the only application that nitrous can actually make the
engine safer to operate.
Q. What is the worst case damage
scenario dealing with nitrous and a diesel engine?
A. When using nitrous on a compression
combustion engine the absolute worst case scenario is that the intake
charge is cooled so much that the engine loses fire and has to be
restarted, that’s it! You don’t even have to wait to
restart it, just hit the key and go.
Q. What about excessive exhaust
temperatures when operating a diesel on nitrous?
A. Nitrous actually lowers exhaust
temps, in fact if the engine is overdosed on nitrous it is possible
to lower the exhaust temps to the point that the engine loses fire
and has to be restarted! BTW no engine damage occurs in this situation.
Q. How much nitrous can you use
on a stock diesel engine?
A. Of course the amount varies
with the application, the larger the engine the more nitrous you
can use. However on most pick-ups and small truck applications up
to 150 HP can be gained safely.
Q. What about torque?
A. The amount of torque produced
when nitrous is applied is huge, it is possible to produce up to
1600 pound feet of torque on a street driven truck!
Q. What is a progressive controller?
A. A progressive controller allows
the nitrous system to deliver its charge in a pre-programmed manner,
adding nitrous in increasing amounts as the engine and or traction
can tolerate it.
Q. Why do you offer a progressive
controlled nitrous system for a diesel application?
A. If too much nitrous is applied
too quickly to a diesel the engine could “stall”. To
prevent this NX designed a boost referenced progressive controller
that will not allow nitrous to be injected into the engine before
boost is present. As boost increases the nitrous delivery is increased,
thus balancing nitrous delivery to maximize performance.
Q. What makes NX controller different
than the others available on the market?
A. NX’s “Boost Referenced”
controller PN NXD5000 delivers nitrous in accordance with the amount
of boost the engine is getting thus maximizing the amount of nitrous
you are able to use without “stalling” the engine.
Q. Can I use my water-meth injection
A. Yes! Nitrous can be used in
combination with any other diesel performance up-grade.
Q. What about propane injection
A. While NX does not recommend
the use of propane on any diesel, it will not increase the damage
or danger to your engine to piggyback nitrous. Nitrous will actually
reduce the exhaust temps to help protect your engine.
Q. My truck runs great but smokes
like crazy after I installed an aftermarket chip. Will nitrous make
it smoke more?
A. Nitrous will actually make
all that ugly black smoke disappear and turn it into horsepower
and torque by burning all of the residual fuel.
Q. What is a wet system and can
it be used on my diesel?
A. The term wet refers to the
use of raw fuel in the intake tract. Such as injecting raw diesel
in the air stream instead of injecting it directly into the combustion
chamber. NX does not recommend the use of wet style systems on a
compression combustion engine as it defeats the entire timed injection
system of the engine.
Q. What size jet do I need for
A. A .057 jet would produce approximately
100HP if there is sufficient fuel available.
Q. What kind of service is provided
for diesel systems?
A. NX has a dedicated diesel tech
to answer all of your questions and all NX systems have a lifetime-limited
warranty on its Lightning solenoids.
Q. Can I rebuild my own solenoids?
A. Yes, all NX solenoids are field
serviceable, however all NX solenoids have a limited-Lifetime warranty
so no rebuilding should be necessary.
Q. Why does nitrous work on a
A. Nitrous provides additional
oxygen to burn more fuel, much like a larger turbo. However it has
one move valuable feature, it is extremely cold, thus providing
a tremendous amount of intercooling. Nitrous is 127 degrees below
zero when it is injected into the intake.
Q. Is nitrous legal for truck
A. In some organizations it is
legal, however before you show up at an event you should always
read the rulebook to be sure.
Q. Do I need a blow-down tube
if the bottle is mounted in my truck bed?
A. No, its purpose is to vent
the nitrous to an area outside the driver’s compartment if
the bottle is mounted in or near the cockpit.
Q. Does my diesel system need
a bottle warmer?
A. All nitrous systems can benefit
from a bottle warmer. It keeps the nitrous pressure constant for
a reliable, repeatable nitrous charge.
Q. How much nitrous will a -4
plumbed kit flow before I need bigger lines?
A. The internal diameter of the
–4 hose is .157. However, due to frictional loses any jet
size or solenoid size over .125 should be converted to a –6
Q. I've heard if the nitrous injectors
are too close to your water/meth nozzles
it'll freeze the water.
A. In the real world it would
be impossible for this to happen. First water/meth will not freeze
until it reaches –30 degrees Fahrenheit, second the air in
the intake stream is very hot due to being compressed by the turbo,
and lastly the air is moving at over 750 mph. With all these factors
being present the answer to your question is, it can’t happen.
Q. At what RPM range is Nitrous
Safe on my truck?
A. The RPM’s are not as
important as boost. If the nitrous is used before the engine sees
boost the engine will stall. While this does not harm the engine
in any way, it is still an annoyance.
Q. How long should I wait to restart
a engine if I've sprayed and the engine dies or stalls?
A. When dealing with a compression
combustion engine there is no danger in restarting the engine immediately.
Only in gasoline engines is this a hazard.
Q. How much timing is too much?
A. When dealing with a combustion
compression engine the injection timing is not a factor in nitrous
Q. What are the tell tail signs
of too much nitrous?
A. Excessively low exhaust temperatures
and or engine stalling are both signs that the engine is being overdosed.
Q. What is the best cure if I
am running too much nitrous on my truck?
A. More FUEL!
Q. What are the tell tail signs
of needing more nitrous?
A. When the exhaust temperatures
are excessive or there is black smoke present at wide open throttle.
Q. If my truck doesn’t smoke
but has good power should I add nitrous?
A. It is not unusual to see the
newer model trucks running well with no smoke, however they can
still be helped by a conservative dose of nitrous.
Q. Do I need a purge kit?
A. The purge kit is a valuable
addition to any nitrous system. Its function is to
“purge” the gaseous nitrous from the supply line to
provide an instant hit of cold, liquid nitrous to the engine.
Q. Do I need a 2 stage system?
A. Dual stage nitrous systems
are very useful when an immediate, huge does of nitrous will either
stall the engine or over power the drive train. Dual stages allow
an initial small hit of nitrous and a larger amount when the engine
has additional boost available to take advantage of the nitrous.