Install nitrous solenoid

You're ready to start spraying! After you install cold spark plugs and retard the ignition timing accordingly. Introduction: How to Install Nitrous Oxide. More by the author:. About: I love teaching people how to diagnose and to work on their vehicle, also showing them affordable ways to modify their vehicle without breaking the bank.

More About MikeF ». Attach the braided nitrous line to the bottle and route it to the engine compartment. Did you make this project? Share it with us! I Made It! The hard lines coming out of the solenoids will need to be cut to size.

Hand thread the AN fitting at the plate and hold the hard line under the solenoid. Mark the line directly under the last thread on the compression fitting and use a pipe cutter to cut the pipe.

Deburr both the inside and outside of the pipe. Slide the compression nut and ferrule over the pipe and insert the pipe in the fitting in the solenoid. Hold the fitting with a wrench as you tighten the compression nut. Tighten the AN fitting on the plate. Do this for both fuel and nitrous.

Left: Assembly order for compression fittings. This is on the fuel solenoid. Right: Fuel line assembly on the injector plate. The silver piece between the two anodized pieces is the jet. Make sure you install one in the nitrous line as well; they have to match for the power output desired. One factor that will determine where you install the injector will be where you can install the solenoid assembly.

Dry nitrous injection systems are mostly used on fuel injected engines. We locate the nitrous injector in the air stream between six and 12 inches upstream from in front of the throttle body. Drill and tap the throttle body and enlarge the hole in the inlet pipe and clamp. Before removing the air inlet pipe, mark it where you want to install the nitrous injector. Make sure you put it in such a location that you can attach the supply line to it and the line will reach to where the solenoids are to be mounted.

Remove the pipe and put a towel or rag against the throttle butterflies to keep metal shavings from entering the engine. Reattach the pipe and clamp. Remove the inlet pipe and use the proper-sized drill bit to drill into the throttle body housing again. Tap this hole using the supplied tap and vacuum or blow out any debris in the throttle body. Reattach the inlet pipe, making sure all three holes line up properly.

Mark the top of the injector on the side with the injector opening at the bottom, as this side must point towards the throttle body when installed. Use a liquid Teflon thread sealer and thread the injector into the hole you drilled and tapped, making sure the injector nozzle opening points towards the throttle body. Installing the dry injector in the air inlet tube requires drilling the tube, installing the adapter, and then installing the injector as shown here.

Be sure to coat the threads of the injector with PTFE sealant. Decide on an adequate location for the injector in the air inlet pipe, no more than six inches from the throttle body. Remember, you need to be able to reach this location with your hand or a wrench so you can install the injector adaptor. Note: The injector must be installed downstream of any Mass Air Flow sensor in the air inlet pipe. Slip the injector adaptor collar into the wrench and secure it in place with a piece of tape.

Slip the adaptor into the hole, coat it with Teflon or thread sealer, slide the nut into place, and tighten the adapter. Apply liquid Teflon thread sealer to the threads of the injector and thread it into the adapter. Dry injection solenoid assembly and connection order for fuel injected engines. Route the feed line from the output solenoid and attach it to the injector.

Connect the nitrous supply to the nitrous solenoid. The order of assembly and connection of the solenoids is important. The output or injector solenoid is then connected to the injector. See the image above. Note: Prior to attaching the feed line to the injector, you will need to install a metering jet into the injector.

There will also be a metering jet for the fuel supply line. Make sure you match these using the chart with your kit for the desired horsepower upgrade. How you connect the fuel solenoid in your nitrous kit will depend on a few things.

Most important of these is the provisions of the kit. For instance, some kits will have you tapping into the fuel supply line before the regulator, while others, like the one I described above, will have you installing the fuel inlet online with the stock pressure regulator.

Holley was nice enough to make a video that shows you a number of ways to get fuel for the fuel solenoid. Many systems sold today will only activate when you have the throttle wide open. Quality electrical connections are very important. Wiring should be neatly cable-tied to the mounting plate and all connections soldered to prevent open circuits later on down the track.

With the fuel lines disconnected use a rag to catch any fuel spills and the carburettor removed, carefully install the longer carby studs. STEP 4: Install the solenoid mounting plate onto the engine and be sure to use the supplied new gaskets. Then connect the nitrous and fuel lines from the solenoids to the plate. Being a hp system, we started with the hp jets the smallest units supplied.

Fuses and relays should always be used on a good installation. Make sure you have good, clean, solid earth connections. STEP 6: Lay out the fuel lines from your regulator to your fuel solenoids.

Avoid right-angle bends and be sure the lines are a sufficient size. This kit needs adequate flow to support up to hp extra, so a dash line runs to the regulator, then dash-6 lines to each solenoid. Use the correct AN spanners to avoid scratching up your fittings when tightening. Alloy fittings should be firm but not overly tight. STEP 7: The inlet to each nitrous solenoid is fitted with a filter see inset to prevent debris from entering the solenoids, which could damage their plungers or cause them to stick open, allowing nitrous to leak into the engine and cause a dangerous induction explosion.

Each fuel and each nitrous solenoid feeds a pair of jets four solenoids feed eight jets, see Step No. Thread tape can break away and clog filters and jets, which is bad.