Nitrous Express EFI NITROUS PLATE SYSTEM FOR HEMI - Manual (Page 9)

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A. The most important statistic you should look for in the fuel specifications is the “MON” or motor
octane number. In most cases the higher the number the more timing you can run and detonation
will not be a problem
B. Most V-8 or V-12 engines with stock compression will run on “93” unleaded pump gas with up to
150 horsepower boost, most 4 or 6 cylinders with stock compression can use up to 75
horsepower.
C. Racing engines with 10-1 compression or higher must run racing fuel. The higher the compression,
and the higher the boost, the higher the “MON” must be.
D. With nitrous usage usually the highest “MON” available is the one that should be used.
E. All NX systems are calibrated to use fuel with .730 specific gravity or “SG”. If you use a fuel with
a lower “SG” you must use a larger fuel jet to compensate for the lighter fuel. If you use a fuel
with a higher “SG”, a smaller fuel jet will be required. Most unleaded pump gas is .730 SG or
above.
F. Racing fuel should be stored in an airtight, dark container. Exposure to atmosphere allows very
important elements to evaporate, lowering the octane of the fuel. Sunlight oxidizes the lead
contained in racing fuel, since this is the most important ingredient used to raise octane it must be
protected.
G. Never leave the fuel in your car between race days. This allows evaporation of the very important
“High end” hydrocarbons and lowers the octane of the fuel.
H. Never buy racing fuel from an underground or vented storage tank. Always demand to see where
and how the fuel is stored; a sealed drum is the only correct way.
I. AV gas or aviation fuel is not compatible with nitrous usage, don’t be tempted by the cheap price,
instant engine damage will result!
J. For a fuel recommendation, contact your NX dealer.
19. All vehicles, including full competition race cars, must have an alternator to provide adequate amper-
age required by today’s racing accessories. Add up all the amps required by your car, you’ll be sur-
prised!
20. If you notice some of the N2O-fuel orifices are not perfectly aligned in your NX plate system, do not
be concerned. This misalignment has been engineered into the system to direct fuel to specific
cylinders.
21. If you have trouble with your NX system or any related parts, call your dealer first. If you still need
help call the factory tech line 940-767-7694 9:00 AM - 4:00 PM Mon-Fri. We are the nitrous experts
and will give straight answers to your questions.
In conclusion……….
This instruction sheet and power tuning tips are valid only for a NX system. If you have a kit from
another manufacturer this information will not help you! A tune up from any other brand of nitrous kit
will not work with the NX “Next Generation” technology.
DO NOT LISTEN TO:
A. YOUR BUDDY!
B. YOUR BUDDY’S FRIEND!
C. THE LOCAL NITROUS GURU!
D. ANY ARTICLE IN ANY MAGAZINE
If you follow the foregoing suggestions, your NX system will operate trouble free and provide years of
thrills. ABOVE ALL REMEMBER TO RACE SAFE AND HAVE FUN!