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©2002 Edelbrock Corporation
Brochure No. 63-0029
Rev. 12/02
Page 22 of 26
4.6 Testing Voltage Booster Before Running
Follow the following steps to ensure that the Voltage Booster Unit is properly installed on you vehicle. Failure to
follow these simple steps could result in catastrophic engine damage.
1. Before turning toggle switch to the “on” position, check all connections for good contacts between the terminals.
2. Be sure that the orange fused wire for the 12 volt supply from the battery to the voltage booster unit is connected
to the battery.
3. Turn ignition key into the “on” position without starting the vehicle.
4. Turn the toggle switch into the “on” position. You should immediately hear the fuel pump begin to make a mid-
ranged whining sound. If the fuel pump does make this sound, go to step 5, otherwise follow the troubleshooting
steps below:
a. Check that the orange fused wire to the voltage booster unit is connected to the +12v terminal of the vehicles
battery.
b. Check to be sure the black ground wire from the voltage booster is grounded to the battery.
c. Check all connections to the wires from the voltage booster and be sure that they are all connected with no
frayed wires.
d. Cross-reference the relay wiring with the wiring schematics on page 18 to be sure that all connections are
made to their proper places.
e. Be sure that the black ground wire from relay 1 is connected to a good chassis ground.
f. Make sure the appropriate wires are intercepted in the Ford fuel pump wire harness. If the incorrect wires are
spliced into, the voltage booster will not work properly.
5.0 Before You Run Your Vehicle Using Your Edelbrock Nitrous System
You have just completed the installation of your Edelbrock Nitrous System. It is time to perform some basic system checks
to ensure all of the work you have done is correct and ready to operate properly. The following procedure is designed to
validate the operation of your nitrous system before operating your vehicle:
Note: Before performing steps 1 through 4, make sure that the nitrous bottle is closed and main nitrous supply
line is empty of any nitrous.
5.1 Fuel System Check
1. Hook up all battery leads.
2. Double-check all wires and leads for signs of heat and proper connections.
3. Start your vehicle.
4. Check all fittings for leaks.
5. Switch master arming switch to the “on” position (switch should now glow red). Make sure the nitrous
bottle is closed and the main feed line are completely empty of ANY nitrous! Raise the engine speed
to above 2000 RPM. Briefly depress the activation arm on the microswitch, which will open the nitrous
solenoids and activate the voltage booster unit. Listen for a loud click or hold the solenoids while you activate
the microswitch. The engine speed will decrease if the voltage booster unit and delivery system are performing
properly. If not, refer to the “TroubleShooting Guide” located in the back of this manual.
5.2 Nitrous System Check
1. With the vehicle's engine running, slowly open nitrous bottle valve.
Note: There should be no change in engine idle speed. If idle speed changes, close nitrous bottle valve
immediately and refer to the "Troubleshooting Guide" section.
2. Inspect nitrous lines and fittings for leaks using a soapy water mixture and a small brush.
3. If any of the fittings/connections show bubbling around the attachment nut or on the threaded area of the
fitting, shut the nitrous bottle valve off immediately and dry the fitting before attempting any service to that
particular fitting connection.
4. If the engine idle does not come up, and all of the fittings appear to be leak-free, you have successfully
completed the installation of you Edelbrock Nitrous System.