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Too much nitrous flow. Reduce nitrous jetting.
Inadequate fuel delivery due
to: Plugged fuel filter
Inspect fuel filter. Clean or replace filter.
Crimped fuel line. Inspect fuel line. Replace crimped line.
Engine detonates
heavily when system is
activated.
Weak fuel pump. Install fuel pressure gauge, such as
NOS P/N 15931NOS in the fuel line.
Run engine under load at wide-open
throttle, with system activated.
Repair/replace fuel pump.
Excessive spark plug gap. Inspect spark plugs. Set spark plug gap at 0.030
to 0.035 inches.
High RPM misfire
when system is
activated.
Weak ignition/ignition
component failure.
Inspect components (plug wires,
distributor cap, etc.)
Replace worn components.
Inadequate supply of
nitrous.
Check bottle weight. Replace with full bottle. Surges under
acceleration when
system is activated.
Bottle mounted incorrectly. Compare bottle position and
orientation to instructions.
Mount or orient bottle
correctly.
Nitrous Oxide Accessories
NOS systems are calibrated for optimum performance with a bottle pressure of 900-950 psi. The pressure will change with
temperature. Heater kits are thermostatically controlled to keep the bottle near 85° F to provide correct pressure. Bottle Heater
(P/N 14164NOS) is available for 10 & 15 lb. bottles.
Insulating the bottle helps maintain pressure by keeping heat in the bottle when it’s cold, or heat out when it’s hot outside. The
blankets are made of a rugged, easily cleaned Nylon outer shell with insulation. It’s also an excellent “dress up” accessory and
perfect for “covering” battle-scarred bottles. Bottle Blanket (P/N 14167NOS) is the blanket for the 15 lb. bottle.
P/N 14164NOS P/N 14167NOS
The Throttle/RPM-Activated Switch (P/N 15879NOS) allows hands-free nitrous operation and prevents nitrous from being
injected at speeds above or below operator-set levels. It greatly reduces the chance of accidental engine damage. The
ON/OFF levels adjust from 2000 to 9000 RPM. NOTE: P/N 15879NOS is not designed to work on vehicles with distributor-less
ignition systems. Call NOS Technical Support for the right RPM-Activated switch for your particular vehicle.
The Remote Bottle Valve (call NOS tech for P/N) is the perfect convenience accessory—it electronically turns the nitrous
bottle on and off with the flick of a switch—no more trips to the trunk. It is also great as a safety shut-off valve. It operates on
12V DC. The complete kit includes hardware and installation instructions.
P/N 15879NOS P/N varies
The primary purpose of a Purge Valve (P/N 16030NOS) is to release trapped air or gaseous nitrous from the feed line(s). This
helps to ensure consistent performances. And, purging looks cool too!