Questions and Answers! 

Let's Talk Nitrous!

We hope the questions and answers below will help answer all your nitrous related questions!  If you still have questions give us a call at 846-441-9902 anytime and we would be glad to help with your build!

1) How does Nitrous Oxide work? A: Nitrous Oxide is a product of two nitrogen molecules and one oxygen molecule. At around 570 degrees F during the combustion process, Nitrous Oxide breaks down and releases the one oxygen molecule. The released oxygen molecule will then create additional power by allowing more fuel to be burned in the combustion process. The two nitrogen molecules act as a buffer with the increased cylinder pressures to help keep the combustion process in control. Nitrous Oxide creates a “cooling” effect by reducing air intake charge temperatures by 55 to 85 degrees F.

2) How long does it generally take to install a Nitrous Oxide System? A: Most Nitrous Oxide Kits can be installed using basic hand tools in approximately 2-6 hours. Single nozzle electronic fuel injection (EFI) Dry Nitrous Oxide Systems usually take around 2 hours to install. Direct Port Nitrous Oxide Systems and Plate Kit Nitrous Oxide Systems usually take around 3-6 hours to install.

3) Can I use Nitrous Oxide on a stock engine? A: Yes. The most important aspect when using a Nitrous Oxide System is not to overindulge. Choosing the correct Nitrous Kit for any given application is essential; a good rule of thumb to follow is to never exceed 50% power increase to your current engine output.

4) Can I use Nitrous Oxide on a high mileage motor? A: This depends primarily on the actual condition of the engine. Any performance modification to an engine that is worn out or poorly tuned will have potentially harmful effects. However, an engine in good condition, with good ring and head gasket sealing, should be able to use nitrous without any abnormal wear. It is important to be sure your engine does not consume excessive oil as this could lead to detonation.

5) Is engine reliability affected by Nitrous Oxide? A: The solution is choosing the correct horsepower for your application. With power increase comes increased load on the various parts that must handle them. If this load increase exceeds the ability of the parts, added wear and tear takes place.

6) What kind of performance improvement will a Nitrous Oxide System provide me? A: Most typical applications will see an improvement anywhere from 1-3 full seconds and 10-15 MPH in the quarter mile at the drag way. Factors such as engine size, traction, weight, gearing, etc. will affect each application differently.

7) What is different between a “Wet Nitrous Oxide System” and a “Dry Nitrous Oxide System”? A: Wet Nitrous Oxide Systems mix nitrous and fuel through the injector nozzle mounted to the air intake. Dry Nitrous Oxide Systems send only nitrous through the injector nozzle mounted to the air intake. Dry Nitrous Oxide Systems use increase fuel rail pressure to feed more fuel through the engine’s own injectors.

8) What are some general rules to follow? A: Generally, retarding ignition timing by 4-8 degrees (1 to 1-1/2 degrees timing retard per 50 HP gain). Forged pistons to increase reliability. In many cases a high performance fuel pump may be necessary. Higher octane (100+) racing fuel may be required as well as spark plugs 1 to 2 heat ranges colder than normal with gaps closed to .025"-.030". For gains over 275 HP, other significant modifications could be necessary. These modifications allow for even higher HP and include a forged crankshaft, forged connecting rods, a dedicated high output fuel pump used to supply the additional fuel demands of the nitrous system, and a quality racing fuel with high specific gravity and an octane rating of 110 or more.

9) Is Nitrous Oxide flammable? A: No. Nitrous Oxide by itself is non-flammable. Nitrous Oxide is an oxidizer that supports the combustion of added fuel.

10) Does Nitrous Oxide cause detonation? A: Not directly. Detonation can be the result of many things, such as a lean condition caused by not adding enough fuel, too low of an octane of fuel, and too much ignition advance. In racing application where higher compression ratios are used, a higher fuel octane should be used as well as more ignition retard.

11) Will my ignition system have to be changed? A: Most late model ignition systems are suited for Nitrous Oxide System applications. In some higher HP cases, it is an advantage to have a high quality ignition system.

12) Will my fuel system have to be changed? A: Most stock fuel pumps will work for smaller Nitrous Oxide System applications. It is important to flow check to see if your pump can supply enough fuel to your existing fuel system, as well as being able to supply the additional fuel required by the nitrous kit under full throttle conditions. It may be a good idea to dedicate a separate fuel pump to the nitrous kit.

13) How does Nitrous Oxide compare to other performance options? A: Dollar for dollar, you can't buy more performance with less money than with nitrous. With a Nitrous Oxide System, performance and reliability can be achieved while still retaining the advantage of a stock engine during normal driving.

14) Can Nitrous Oxide be applied on high compression engines? A: Absolutely. High compression ratios work well with nitrous oxide provided the proper balance of nitrous and fuel enrichment is maintained. Generally, the higher the compression ratio, the more ignition retard as well as higher octane fuel, is required.

15) Will Nitrous Oxide affect my catalytic converter? A: Since the use of nitrous is normally limited to 10-20 seconds of continuous use, there usually are no damaging effects. Temperatures are typically well within acceptable standards.

16) Are there benefits of using Nitrous Oxide with turbo or super-charger applications? A: In turbo applications, turbo lag is completely eliminated with the addition of a Nitrous Oxide System. Both turbo and superchargers compress the incoming air, thus heating it. With the injection of nitrous, a tremendous intercooling effect reduces intake charge temperatures by 75 degrees or more. Boost is usually increased as well, adding even more power. It is usually recommended that Wet Nitrous Oxide Systems are used on forced induction applications.

17) Should I use an aftermarket computer chip along with a Nitrous Oxide System? A: Only if the chip has been designed specifically for use with nitrous oxide. Most performance chips advance ignition timing to increase horsepower. Additional timing can cause engine detonation when using Nitrous Oxide.

18) When is the best time to use Nitrous Oxide? A: At wide open throttle only. Due to the tremendous amount of increased torque, you will generally find best results, traction permitting, at early activation.

19) What is the best cam shaft profile to use with Nitrous Oxide? A: Cams that have less exhaust overlap and more exhaust duration. If your vehicle is used for daily driving, your stock cam is fine. There are special cam grinds available for nitrous competition which have more aggressive exhaust profile ramping, etc.

20) How will I know how much Nitrous Oxide is in my bottle? A: The only way to measure how much Nitrous Oxide is in your bottle is to weigh it. The greatest power gains will be seen when your bottle is greater than or equal to 20% full.

21) Should I change my spark plugs when using a Nitrous Oxide System? A: Yes, Nitrous Oxide Systems create increased horsepower and in turn create increased heat in the combustion chamber. The standard is to install spark plugs with at least two steps colder in heat range.

22) What should my bottle pressure be at when using my Nitrous Oxide System? A: Optimal Nitrous bottle pressure is 900-1000 psi.

23) Should I use a bottle heater with my Nitrous Oxide System? A: Nitrous bottle heaters are great ways to maintain optimal bottle pressure at 900-1000 psi. This pressure and consistency ensure maximum horsepower out of your Nitrous Oxide System.

24) How long will my Nitrous Oxide bottle last? A: This varies greatly with bottle size and amount of Nitrous Oxide being used. Generally on 75hp setting, a 10lb bottle will last for 10 quarter mile passes.

*ProNitrous.com does not make any reference or give any advice to the tuning or installation of your Nitrous Oxide System.  We leave that to you so that we can focus on product customer service!

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