nitrous kits


The NOS kit begins with a supply cylinder containing pressurized liquid nitrous oxide. This cylinder is connected by means of a delivery hose to a normally closed electric solenoid valve. This solenoid valve, which is attached to a manifold assembly, is engaged and disengaged via the TPS switch. The manifold assembly distributes the nitrous oxide to the engine's air inlet and the kit's supplemental fuel control circuit. The nitrous oxide that is delivered to the engine's air inlet is conveyed via a delivery hose to an injection nozzle. The amount of nitrous oxide, which provides the oxygen required for the horsepower increase, is adjustable by means of a metering jet installed in the injection nozzle itself. The nitrous oxide that is distributed to the fuel control circuit passes through a small bleed orifice.

This bleed orifice provides a reference source of bottle pressure and a controllable source of pressure to perform the needed function of fuel enrichment. Fuel enrichment occurs by conveying this source of pressure through a delivery hose to a vacuum ported fuel pressure regulator. This source of pressure on the rubber diaphragm of the fuel pressure regulator causes an increase in fuel pressure. This increase in fuel pressure performs the function of adding fuel volume through the engine's own injectors. The amount of additional fuel that is added can be changed by an adjustable metering jet in the fuel control circuit. This jet accomplishes the task by controlling the amount of pressure allowed to build in the delivery hose to the fuel pressure regulator.

The jet bleeds off excess pressure in the fuel control circuit and vents it through a delivery tube, back to the intake manifold plenum.

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