Nitrous Oxide

Does your engine need an extra push on the straights, without converting it to a turbo or supercharger? Nitrous oxide can add extra power when the system is activated. Here we gather kits, nozzles, jets, bottles and mounting parts for you who want to add or expand a nitrous system in your project.

How a nitrous system works

Nitrous oxide adds extra oxygen to the combustion, so the engine can burn more fuel and produce more power. A system typically consists of a bottle, lines, solenoids that open and close the gas flow, and nozzles or a plate under the throttle body. In a wet system, extra fuel is added together with the nitrous, while in a dry system the fuel injection supplies the extra fuel. The power level is typically determined by the calibrated jets that meter gas and fuel.

How to choose a kit and nozzles

The choice depends on the engine's fuel system, your power goal and how much you want to modify. The category includes parts from e.g. Nitrous Express and FAST, and among our complete nitrous kits you will find e.g. Nitrous Express kits for carburetted engines, dry EFI kits with a single nozzle and direct port kits with one nozzle per cylinder. Pay particular attention to:

• Power range: the kit must cover your goal – e.g. plate kits for GM LS and Dodge Hemi state a range of 50-400 hp.
• Fuel supply: the pump must be able to deliver the extra volume, so consider checking fuel pumps and pressure regulators.
• Installation: a plate requires space at the intake, while single nozzles are fitted in the intake tube or manifold.
• Engine condition: ignition, compression and fuel quality can affect how much extra power the engine can handle.

Bottle, safety and maintenance

Bottle pressure changes with temperature, and this can affect how much nitrous is delivered through the nozzles. The bottle must be mounted securely according to the manufacturer's instructions, and accessories such as a blow-down tube, in-line valve and solenoid brackets must match your system. Several kits come with a 10 lb bottle, and extra nitrous bottles can be purchased separately. Check hoses, fittings and solenoids regularly for leaks.

Frequently asked questions

What is the difference between a wet and a dry nitrous kit?

A wet kit adds both nitrous and extra fuel through the nozzle or plate. A dry kit adds only nitrous, while the fuel injection must supply the extra fuel. Which one suits you depends on your fuel system.

How do I change the power level of my system?

Power is typically controlled by the jets fitted in the nozzle or plate. If you change level, the jets must be selected according to the manufacturer's instructions, and the engine's fuel supply and ignition must be able to keep up.

Can I use nitrous on a car that is driven on the road?

It depends on the product, the car and the installation. Check for the specific part number and your car whether the system can be approved at inspection, and look into the rules for driving on public roads before you install it.