Nitrous Electrical System Installation Procedures; Nitrous Relay And Fuse Holder Installation - Edelbrock 70211 Installation Manual

3.3

Nitrous Electrical System Installation Procedures

Determine the location of the relay and fuse holder wire harness. Most common installations locate these
components inside the driver's compartment and close to the fuse panel under the dash. You can also mount the
relay and fuse holder harness close to the battery. However, these connectors are water-resistant not waterproof,
so care is required when mounting this assembly under the hood of your vehicle.
Wire Schematic Origin and Destination Map
Wire Color
Red
Red
Blue
White
Black
Black
Black
Black
Black
Black
3.4

Nitrous Relay and Fuse Holder Installation

The wire harness attached to the relay and fuse holder includes 8 feet of color-coded wires to make the electrical
system installation for your Edelbrock Nitrous System as easy as possible. We recommend that you do not cut any
lengths of wires from the wire harness or complete the wiring of the nitrous system until all of the mechanical
components are securely mounted in their permanent locations.
Once all of the solenoids and switches are placed, then route the un-cut wires from the harness to each location
allowing enough wire length on each circuit to not interfere with operating linkages, heat sources, brackets, etc.
Pay particular attention to sharp edges along the route of your wire harness as they can chafe the wire and cause
your system to fail.
After you have accounted for the routing of your wires, follow the Wire Harness Schematic on page 15 and use the
Origin and Destination Map as a guide for which electrical connectors are used in each circuit.
Once you have decided the location of the relay and fuse holder, secure them with fasteners (not included with kit)
such as sheet metal screws, bolts and nuts, etc. Allow for some slack in the red wire that connects the relay and
fuse holders together.
When mounting your relay and fuse holder, make sure the mounting surface is strong enough to support servicing
the relay and fuse. Also, ensure you allow for some slack in the wire that joins the fuse holder to the relay mount.
This will avoid any potential loss of power due to stress on the wire harness.
The fuse is covered by the fuse mount housing.
The relay for the Performer system is rated for 30 amps, and the fuse is 15 amps.
©2003 Edelbrock Corporation
Brochure No. 63-0173
System
Main System Bat.
Voltage Arming Switch
Solenoid Power
Solenoid Power
Relay Power
Arming Switch Ground
Relay Ground
Microswitch Ground
Solenoid #1 Ground
Solenoid #2 Ground
Safety Switch
Fuel Pressure
Safety Switch Ground
Page 16 of 23
Origin Destination
Relay Harness Bat. Volt. Signal
Arming Switch Switched 12V
Relay Harness Solenoids #1 & #2
Relay Harness Arming Switch
Arming Switch Chassis Ground
Relay Harness Microswitch
Microswitch Chassis Ground
Solenoid #1 Chassis Ground
Solenoid #2 Fuel Pressure
Fuel Pressure Chassis Ground
Safety Switch
Terminal Used
Ring
Spade/Wire
Intercept
Spade
Spade
Spade/Ring
Spade
Spade/Ring
Ring
Ring
Ring/Ring
Rev. 02/03