Edelbrock Nitrous System 63-71940 User manual

©2007 Edelbrock Corporation
Brochure #63-71940
Catalog #71940
Rev. 2/07 - DC/mc
Page 1 of 4
EDELBROCK NITROUS SYSTEM
UNIVERSAL MOTORCYCLE NITROUS SYSTEM
CATALOG #71940
Table of Contents
1.0 - General Safety Precautions Page 1
2.0 - Important Notice Page 2
3.0 - Warranty Page 2
4.0 - Items Included in Kit Page 2
5.0 - Power Commander Tuning Tips Page 2
6.0 - Wiring Diagrams Page 3, 4
7.0 - Wiring MSD 8950 RPM Switch Page 4
8.0 - Optional Products Page 4
1.0 - GENERAL SAFETY PRECAUTIONS
This dry nitrous system is intended for Fuel Injected Motorcycles Only! It should only be installed by a competent technician
with nitrous experience. This is FOR RACE USE ONLYand is not intended for public roads or highways.
All wiring and nitrous lines should be wrapped with the provided wire loom and positioned in a way to prevent engine heat from
doing any damage. The use of electrical tape at the end of the wire loom adds to the effect of “stock appearing”. We also suggest running
all the wiring and nitrous line alongside stock wiring. Be sure all wire terminals are water tight to prevent corrosion. The water proof
arming switch should also be located in a discreet location to prevent detection.
The nitrous bottle should be mounted away from any engine heat. Under the seat is a good location.
The nitrous nozzle should mount in a ram air tube or at the very front of the air box. This is to assure that the Airbox Sensors
are hit with the nitrous oxide. The nitrous will pass through the air filter.
Start with the smallest supplied jet. Try it on the dyno first, then try it on the race track. Use stock ignition timing only when
you are using the nitrous. Advancing the timing can cause engine damage. Using a minumum 90 octane gasoline is highly
recommended.
Do not use the nitrous to increase the horsepower by more than 40. Doing so can/will cause piston or spark plug failure resulting
in severe engine damage.
If your fuel injected motorcycle is equipped with a Power Commander, it is recommended that you increase the high rpm
faceplate by two bars. This is to insure enough fuel will get to the engine. Refer to your Power Commander manual for instructions.
Do not allow the engine to hit the rev limiter while using the nitrous. An RPM activated switch may be installed to turn off the
nitrous before the rev limiter has been reached. Refer to wiring diagrams for more information.
Do not attempt to use the nitrous in first gear. Tire spinning or an uncontrolled wheelie may result.
IMPORTANT - Always wear proper safety gear while racing your motorcycle. This includes a minumum Snell 95
helmet, leather jacket, leather gloves, boots that cover your ankles, and leather pants. Additional padding is
recommended.

©2007 Edelbrock Corporation
Brochure #63-71940
Catalog #71940
Rev. 2/07 - DC/mc
Page 2 of 4
2.0 - IMPORTANT NOTICE
It is the responsibility of the purchaser to follow all guidelines and safety procedures supplied with this product and any other
manufacturer’s product used with this product. It is also the responsibility of the purchaser to determine compatibility of this device with
the vehicle and other components.
Edelbrock Corporation assumes no responsibility for damages resulting from accident, improper installation, misuse, abuse,
improper operation, lack of reasonable care, or all previously stated reasons due to incompatibility with other manufacturer’s products.
Edelbrock Corporation assumes no responsibility or liability for damages incurred from the use of products manufactured or sold
by Edelbrock Corporation on vehicles used for competition racing. Edelbrock Corporation neither recommends nor approves the use of
products manufactured or sold by Edelbrock Corporation on vehicles which may be driven on public highways or roads, and assumes no
responsibility for damages incurred from such use.
It is the purchaser’s responsibility to check the state and local laws pertaining to the use of nitrous oxide for racing applications.
Edelbrock Corporation does not recommend nor condone the use of its products for illegal street racing.
Do NOT mount the bottle under the fuel tank. Heat from the engine will cause the bottle pressure to go too high
for the solenoids to open!
3.0 - WARRANTY
Edelbrock Corporation warrants to the original purchaser that the components shall be free from defects in parts and
workmanship under normal use for 90 days from the date of purchase.
Edelbrock Corporations obligation under this warranty is limited to the repair or replacement of any components found to be
defective when returned postpaid to Edelbrock Corporation. The item must be returned with evidence of place and date of purchase or
warranty will be void. The warranty will not apply to any component that has been used incorrectly, repaired, damaged, or tampered with
by misuse, negligence or accident.
4.0 - ITEMS INCLUDED WITH THIS KIT
5.0 - POWER COMMANDER TUNING TIPS
When using the Nitrous System, more fuel may be needed to be delivered to the engine using the Power Commander. To do
this, you can use the Power Commander Faceplate and richen the high RPM. Another way is to go into the Map Program and richen
100% throttle table to the desired amount. Refer to the Power Commander manual for further instructions. Use of a dyno is
recommended for proper tuning.
Qty Qty Qty Qty
11 lb. Bottle with -4 Fitting 1.036” Jet
112” -4 Line with Blue Ends 12’ 1/4” Loom, Black, for Wires and to Hold Nitrous Line
1Nitrous Solenoid 16 Pole Water Proof Switch
1Fitting -4 Male to 1/8” Pipe 8’ Black Wire
1Fitting -3 Male to 1/8” Pipe 8’ Red Wire
1Dry Nitrous Nozzle 20 Small Zip Ties
1Nozzle Tap, 1/16” Pipe Thread 10 Large Zip Ties
1.028” Jet 160” -3 Stainless Line with -3 Hose Ends
1.034” Jet 1 Pk Misc. Electrical Terminals

©2007 Edelbrock Corporation
Brochure #63-71940
Catalog #71940
Rev. 2/07 - DC/mc
Page 3 of 4
6.0 - WIRING DIAGRAMS
Some models provide +12V when the horn button is activated. When using wiring diagram #2, the solenoid wire polarity will
need to be reversed if the horn button provides +12V.
Wiring Diagram #1
Wiring Diagram #2
Red
Red
Red
Red
Black
Black
Black
Black
Black
Black
Factory Harness to Horn
Factory Harness to Horn
Horn
Horn
Nitrous
Solenoid
Nitrous
Solenoid
Switch
Switch
Bottom
View
Bottom
View
+12V with Key On
From Horn Button
(Ground when button is pressed)
From Horn Button
(Ground when button is pressed)
To Nitrous Bottle
To Nitrous Bottle To Nitrous Nozzle
To Nitrous Nozzle
Install Relay for OPTIONAL RPM
Activated Switch Here. See
Section 7.0 for More Details.
Install Relay for OPTIONAL RPM
Activated Switch Here. See
Section 7.0 for More Details.
To Switched +12 Volts

©2007 Edelbrock Corporation
Brochure #63-71940
Catalog #71940
Rev. 2/07 - DC/mc
Page 4 of 4
To Nitrous Bottle To Nitrous Nozzle
Nitrous
Solenoid
To Starter Solenoid
Switch
Bottom
View
Ground
Starter Button
+12V when Pushed
Install Relay for OPTIONAL RPM
Activated Switch Here. See
Section 7.0 for More Details.
Wiring Diagram #3
Starter Button Activation for Suzuki Hayabusa
7.0 - WIRING MSD 8950 RPM SWITCH
NOTE - This is a suggested wiring application. There are many ways that the RPM switch may be installed. The installer
needs to set RPM switch to proper RPM and test operation. Use diagrams on page 3 for relay terminal #30 connection.
Nitrous
Solenoid
To Nitrous Bottle To Nitrous Nozzle
RPM ACTIVATED
SWITCH
10,000
Desired
RPM Chip
Here
Connect as Outlined in
Wiring Diagrams
White to 4-Coil Tach Adapter
#T-101-MSD
Black Battery
Ground
Yellow - N/C
Gray - OFF When Set RPM is Exceeded
Connect as Outlined in
Wiring Diagrams
NOTE - RPM Chips are Ordered Separately
Red to Switched +12 Volt Tailight
Power or any Other +12 Volt
Source with the Key On
Note - This Method Will Turn
the Nitrous Off When Set
RPM has Been Exceeded.
85 87A
30
86 87
A Test Light Can Be
Used Here to Check
Operation
8.0 - OPTIONAL PRODUCTS FOR EFI MOTORCYCLES
A Progressive Timing Retard Controller is available from Schnitz Racing for fuel injected motorcycles. The EFIR Series Timing
Retard Controllers can be used with or without a Power Commander installed.