PERFORMER RPM II NITROUS SYSTEM
Catalog #70080 / #70082
Catalog #70081 / 70083
Table of Contents
a.
b.
c.
d.
Page #
Edelbrock General Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Before You Install Your Edelbrock Nitrous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
What is Nitrous Oxide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Tips for Working with Nitrous Oxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.0 Introduction to your Perfomer RPM II Nitrous System
1.1
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2
Jet Map Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3
Engine Operation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4a Performer RPM II Nitrous System Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4b 2-Stage Performer RPM II Nitrous System Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0 Nitrous System Installation
2.1
Nitrous Bottle Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2
Bottle Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3
Nitrous Bottle Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4
Nitrous Feed Line Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5
Solenoid Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6
Nitrous Solenoid Mounting and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7
Fuel Solenoid Mounting and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8
2-Stage Solenoid Mounting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.9
Nitrous/Fuel Solenoid Disassembly and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.10 Nitrous Injection Plate Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.11 Solenoid/Plate Plumbing Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.12a Single Stage Electrical System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12a.1 Nitrous Electrical System Installation Procedures & Wiring Diagram . . . . . . . . 17-18
2.13b 2-Stage Electrical System Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.13b.1 Nitrous Electrical System Installation Procedures & Wiring Diagram . . . . . . . . 20-21
2.14 Arming Switch and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15 Microswitch Installation and Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-23
2.17 Final Electrical Installation Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.0 Before You Run Your Vehicle Using Your Edelbrock Nitrous System
3.1
Fuel System Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2
Nitrous System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.0 Baseline Tuning Suggestions
4.1
Nitrous Bottle Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.2
Fuel Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.0 How to Read Spark Plugs from a Nitrous Oxide Injected Engine . . . . . . . . . . . . . . . . . . . . . 26
Table of Contents (Continuation)
Page #
6.0 Ignition Timing and Nitrous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.0 Testing Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.0 Troubleshooting Your Edelbrock Nitrous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-31
Thank You….
…for purchasing an Edelbrock Nitrous Oxide Injection System.
Nitrous Oxide injection is one of the most exciting performance enhancements, for the dollar invested, on the market today.
With the use of nitrous oxide come some important safety considerations. This manual has been written to help you during
the installation and use of your Edelbrock Nitrous System. Please read it completely before you install and use your
system. Please pay close attention to the safety information at the beginning of each section. The information contained
there specifically pertains to each of the components and installation methodologies within the section.
Please take the time to read and understand the following….
By installing your Edelbrock Nitrous System, you indicate you have read this document and you agree with the terms
stated below:
It is the responsibility of the purchaser to follow all installation instruction guidelines and safety procedures supplied with
the Edelbrock Nitrous Systems. It is also the responsibility of the purchaser to determine the compatibility of the product
with the vehicle or the device on which the purchaser intends to install it.
Edelbrock Corporation assumes no responsibility for damages occurring from misuse, abuse, improper installation,
improper operation, lack of responsible care, or all previously-stated reasons resulting from incompatibility with other
manufacturer’s products and/or systems.
Edelbrock Corporation neither recommends nor condones the use of products manufactured or sold by Edelbrock
Corporation for use on vehicles, which may be driven on public roads or highways, and assumes no responsibility for
damages incurred by such use.
Edelbrock Corporation assumes no responsibility for damages incurred by the use of products manufactured or sold by
Edelbrock Corporation on vehicles used for competition or racing.
Edelbrock General Warranty
It is the constant endeavor of Edelbrock Corporation to give our customers the highest quality products obtainable.
Edelbrock warrants each new product, except Performer Series Carburetors, Race Division Parts, Tubular Exhaust Systems,
RPM Series Mufflers, Cat-Back Systems and Performer IAS Shock Absorbers which are warranted separately, to be free
from defects in both workmanship and material for a period of one (1) year from the date of purchase, provided that the
product is properly installed, subjected to normal use and service and that the product is not modified or changed in any
way, negligence by customer or installer or used for racing or competition purposes.
Our warranty service and repair facility is located at 2700 California Street, Torrance, California 90503. Customers who
believe they have a defective product should either return it to the dealer from which it was purchased or ship it directly
to Edelbrock along with proof of purchase and a complete description of the problem. The product must be returned
freight pre-paid. If a thorough inspection of the product by the factory indicates defects in workmanship or material, our
sole obligation shall be to repair or replace the product. Warranty covers only the product itself and not the cost of
installation or removal.
Edelbrock Corporation shall not be liable for any and all consequential damages occasioned by the breach
of any written or implied warranty pertaining to this sale in excess of the purchase price of the product sold.
If you have any questions regarding a product or installation, please contact our Technical Department, toll
free at 1-800-416-8628 from 7:00am to 5:00pm PST, Monday through Friday.
Thank you again for choosing Edelbrock Nitrous Systems.
Catalog #70080-70083
Brochure No. 63-0312
Page 3
©2005 Edelbrock Corporation
Rev. 03/05
Caution!!!
Before You Install Your Edelbrock Nitrous System…
Please read this Installation manual fully before installing this system.
You will need to have available the following tools:
Hand Tools
❑ Socket set including ratchets and extensions
❑ Screwdrivers
❑ Pliers
❑ Bench vise
❑ Wire crimping pliers, wire strippers
❑ Floor jack
❑ Razor blade or other sharp, flat edged cutting instrument
❑ Vehicle jackstands
❑ Safety glasses
❑ Timing light
Power Tools
❑ Power drill
❑ Drill bits
You should understand the following skills:
❑ Power tool safety procedures
❑ Undercar safety procedures
❑ Proper measuring techniques
❑ Proper electrical assembly techniques
❑ Basic engine operation and tuning techniques which include:
✓ Fuel pressure measurement techniques
✓ Timing adjustment techniques
℡
Catalog #70080-70083
Brochure No. 63-0312
Anytime you have questions or concerns with your Edelbrock Nitrous System,
please call our technical support hotline at
1-800-416-8628 before you start your engine.
Page 4
©2005 Edelbrock Corporation
Rev. 03/05
WHAT IS NITROUS OXIDE?
Nitrous Oxide is a cryogenic gas composed of nitrogen and oxygen molecules. It is stored as a “gas over a liquid” which
means that both liquid and gaseous nitrous oxide is delivered into your engine. It is 36% oxygen by weight, which is what
produces the added horsepower. By injecting more oxygen (and a corresponding fuel signal), we create the additional
power much like a supercharger or a turbocharger does.
Nitrous Oxide is considered an “oxidizer” and not a fuel. Nitrous oxide is non-flammable by itself. Because nitrous oxide
is a cryogenic, the same safety methods in handling dry ice apply to nitrous. Direct contact with the skin will cause a burn
similar to contact with dry ice. The exception in using nitrous oxide comes from increased breathing hazards associated
with the gaseous properties of nitrous oxide.
Nitrous Oxide is offered for sale in two common grades, which are U.S.P., and Nytrous Plus. U.S.P. nitrous oxide is medical
grade nitrous oxide. Its common use is dental and veterinary anesthesia as well as use as a propellant in food such as
canned whip cream. U.S.P. is not available to the public and would provide no advantage in the making of horsepower over
the automotive grade nitrous oxide.
Nytrous Plus was specifically designed for automotive consumption and differs from U.S.P. in that it contains trace
amounts of sulfur dioxide (100 parts per million or “PPM”) added to prevent substance abuse. The Sulfur Dioxide is an
irritant to all of your breathing passageways and will cause sore throats and sore nasal passages. Nytrous Plus was
specifically created for automotive applications and is available for sale to the public at many speed shops across the USA.
Safety Steps For Working With Nitrous Oxide
1. Never inhale Nytrous Plus (Nitrous oxide (N2O) for vehicular use) as continued exposure can cause death.
Nytrous Plus has a maximum of 100 parts per million (ppm) of sulfur dioxide and will cause irritation to nose
and throat passageways.
2. When working around any high-pressure gas including nitrous oxide, take all precautions to ensure that
exposure to nitrous oxide is minimized.
3. Do not vent nitrous oxide to atmosphere in confined spaces. Only vent nitrous oxide in well-ventilated
and open areas.
4. Liquid nitrous oxide can cause burns to human flesh so protect all skin in and around your hands, arms
and face. Wear safety glasses and rubber gloves to protect from liquid nitrous oxide splatter.
5. When venting down the nitrous system, vent the line down closest to the nitrous bottle.
6. Do not use any form of Teflon tape as sealant on fitting connections. Use only Teflon paste.
7. When washing components, ensure the clean components are completely dry, free of oils, and solvents.
Failure to remove all liquids could cause component or system failure.
8. Always turn the bottle off before making any repairs to the nitrous delivery system.
9. To safely release nitrous oxide in a pressurized line;
a. Position vehicle in a well-ventilated, unconfined space.
b. Turn bottle off.
c. Slowly loosen the nitrous feed line at the bottle until you hear a light hissing noise.
d. Allow the entire nitrous pressure to vent from the line.
e. Perform your work on the system.
f. Tighten the nitrous line to the bottle.
g. Slowly open the nitrous bottle valve, listening for leaks.
h. Perform leak checks on all effected fittings and the bottle fitting.
℡
Catalog #70080-70083
Brochure No. 63-0312
Anytime you have questions or concerns with your Edelbrock Nitrous System,
please call our technical support hotline at
1-800-416-8628 before you start your engine.
Page 5
©2005 Edelbrock Corporation
Rev. 03/05
1.0
Introduction to your Edelbrock Performer RPM II Nitrous System
….about this manual!
Within the pages of this manual is information, safety tips and operation instructions for your new Edelbrock Nitrous
System. Watch for these symbols to know where to go for information.
….There is safety related information here.
….shows where technical information about your vehicle or specific skills that may help
during installation.
℡ ….call Edelbrock Technical support hotline for more information.
1.1
General Information
The Edelbrock Performer RPM II Nitrous Systems are intended for use on domestic style V-8
engines using single Dominator-flange carburetors (Part #70081, 70083) and square-flange 4
bbl. carburetors (Part #70080, 70082). Horsepower and torque increases can vary with engine
displacement, equipment upgrades and modifications. Approximate power increase estimates can be
made based on the mass flow of nitrous oxide into the engine.
These types of systems utilize an adjustable plate that sandwiches in between the throttle body and the
throttle body mounting pad on the intake manifold. The adjustability comes from the ability of the plate to
accept different orifice-sized jets. The plate has jet fittings at opposite ends of the plate that control the
amount of nitrous oxide and fuel flow into the engine.
This system has been designed with some flexibility as to where certain components can be located
within the engine compartment. The electrical components have properly-sized and ample lengths of wire
for some flexibility on where voltage signals are intercepted on the electrical system.
The solenoid and microswitch brackets have a universal shape to allow for adjustability in placement and
location of these components. The solenoids have ample feed line lengths for many different manifold, air
cleaner, throttle body configurations and the microswitch bracket will allow for several different positions.
This system includes the bottle (shipped empty), bottle feed line and universal footprint steel bottle
brackets. The mounting brackets also include rubber insulators to protect the surface of your nitrous
bottle while mounted in the brackets. When installing your nitrous bottle, pay close attention to the
installation instructions for the location of your bottle. Make sure that the installation of your bottle does
not interfere with any systems that may lie under the location where you plan to drill holes for mounting
the brackets.
Call your local automotive store, motorcycle shop or race track for refilling of your bottle. Trust a
professional to properly fill your bottle and reference your installation manual when re-installing your filled
bottle back into your vehicle.
Always take care when handling a full bottle of nitrous oxide. Please reference this manual for further
safety measures to take during the handling of a nitrous oxide bottle.
Please follow all safety methods during the installation of your Edelbrock Nitrous System, and follow all
vehicle regulations and road laws when using your nitrous system.
Catalog #70080-70083
Brochure No. 63-0312
Page 6
©2005 Edelbrock Corporation
Rev. 03/05
1.2
Jet Map Information
Edelbrock engineering has conducted dyno testing with the Performer RPM II system to provide you with
a baseline jet map. These jet combinations are supplied with this system to enable you to vary your
engine’s power output. On a typical mildly to highly modified 350 or larger cubic inch engine, you can
expect the following approximate power gains for each of the jetting levels:
Performer RPM II Jet Map
Nitrous/Fuel Jetting
93/102
102/110
116/120
Approx. HP Gains
225hp
300hp
400hp
Timing Adj.
28 Deg. Total
24 Deg. Total
20 Deg. Total
2-Stage Performer RPM II Jet Map
1st Stage...
Nitrous/Fuel Jetting
71/75
85/89
99/102
Approx. HP Gains
150hp
200hp
250hp
Timing Adj.
30 Deg. Total
28 Deg. Total
26 Deg. Total
2nd Stage...
Nitrous/Fuel Jetting
93/102
102/110
116/120
Approx. HP Gains
225hp
300hp
400hp
Timing Adj.
28 Deg. Total
24 Deg. Total
20 Deg. Total
The dyno tests were conducted at Edelbrock using a highly modified 500 cubic inch engine. Modifications
included Edelbrock intake manifold, dyno headers, pistons, rods, crankshaft, and improved ignition. These
tests were conducted with 950 psi nitrous and 7 psi fuel pressure. All stated timing adjustments listed
in the jet map is where the motor being tested worked best. Final timing should be adjusted to achieve
best power and/or MPH per application. See section “5.0 Ignition Timing and Nitrous” for more
information on timing selection.
These jetting patterns are designed to be rich and will provide the above-listed power settings under
normal operational usage of this system. Any variations in jetting patterns other than what is listed above
and engine damage could occur. Please contact Edelbrock Technical Department with any questions you
have concerning jetting patterns and their effects on engine performance.
Edelbrock recommends using Champion C-64-C or equivalent spark plugs.
The fuel used should be 110 Octane or better.
The Performer RPM II Series Nitrous Systems are intended for single-plane manifolds only. Do
not use a dual-plane manifold with the Performer RPM II Series Nitrous Systems. In testing, we
found that dual-plane manifolds have some distribution problems at these super high flow rates that could
cause serious engine damage.
Catalog #70080-70083
Brochure No. 63-0312
Page 7
©2005 Edelbrock Corporation
Rev. 03/05
1.3
Engine Operation Considerations
When used correctly, nitrous oxide safely elevates cylinder pressures and temperatures while increasing
combustion rate. These characteristics make the engine more sensitive to detonation. To ensure proper
performance, engine and drive line life, the following tips are suggested:
• Adequate Fuel Pressure and Delivery
When designing your fuel system, plan on your pumps and lines flowing at least 0.10 gallons per hour per
horsepower. The testing at Edelbrock was conducted with a fuel pressure of 6.5 to 7 psi. Any
variations from this fuel pressure will cause your final air/fuel ratio to change. Consult our Technical
Department for any questions on fuel pressure and its effects on final air/fuel ratios when using nitrous
oxide.
• Performer RPM II Fuel System Requirements
When using the Performer RPM II Series Kits, the potential horsepower gains are extremely high. The
critical area for continued success with your nitrous system lies in the fuel system. In the case of the
Performer RPM II Series Nitrous Systems, an auxiliary fuel supply system is a required addition to your
nitrous system. A high flow electric fuel pump and high capacity adjustable fuel pressure regulator are
both recommended to ensure the fuel flow rate is enough to ensure proper system operation. The
minimum size we recommend for the fuel inlet feed line is a -6 (3/8” inch), with a size of -8 (1/2” inch)
recommended for the higher horsepower settings.
• Performer RPM II System Monitoring Requirements
Fuel pressure and nitrous pressure gauges are very important. Your fuel pressure must be set properly
and a gauge is the only sure way to monitor system performance. The same is true of the nitrous bottle
pressure. A nitrous pressure gauge is the only way to be ensure that your system calibrations are within
the parameters required of your horsepower settings.
• Fuel Quality
Because Nitrous oxide is an oxidizer, fuel selection is critical. Both octane and fuel consistency affect fuel
burn rate. The oxidizer quality of nitrous oxide will accelerate the burn rate, so we recommend a high
quality of gasoline. We also recommend you use the same grade of gasoline every time you use your
nitrous oxide system. This will help maintain the same fuel burn rate every time.
• Forged Pistons
With all nitrous oxide applications, forged pistons are highly recommended. Because of heightened
potential for detonation, cast pistons are more prone to failure and cannot handle horsepower increases
over 125hp. Due to this fact, the Performer RPM II Nitrous System requires that the engine has
forged pistons. Never initiate your nitrous system before you are at full-load, wide open throttle
conditions. Cast pistons will not be able to survive this kind of stress.
• Engine System Upgrades
With all performance modifications, complementary system upgrades will always serve to elevate the
consistency and longevity of an engine, especially when using nitrous oxide as a power adder.
Modifications such as ignition upgrades, free-flowing exhaust, camshafts, cylinder heads, and manifolds
can all add to the performance of a nitrous oxide-injected engine.
℡
Catalog #70080-70083
Brochure No. 63-0312
Anytime you have questions or concerns with your Edelbrock Nitrous System,
please call our technical support hotline at
1-800-416-8628 before you start your engine.
Page 8
©2005 Edelbrock Corporation
Rev. 03/05
1.4a
Performer RPM II Nitrous System Components
3
18
2
16
19
17
15
4
1
6
14
5
7
13
12 11 10 9
Item #
1
2
3
4
5
6
7
8
9
Qty.
1
2
1
2
1
1
1
1
1
8
Item #
10
11
12
13
14
15
16
17
18
19
Description
Performer RPM II Plate
Gaskets
Main 14ft. Feed Line
Solenoid Brackets
Micro Switch Bracket
Bottle Nut Washer
6AN Bottle Nut
Blue 6AN Fitting
Red 6AN Fitting
Qty.
1
1
1
1
1
4
4
1
1
*
Description
Blue 4AN Fitting
Red 4AN Fitting
1/4”NPT to 1/8”NPT Reducer
Victor Pro Nitrous Solenoid
Victor Pro Fuel Solenoid
Solenoid Mounting Screws
Carburetor Studs
8 inch 4AN to 3AN Hose
12 inch 4AN to 3AN Hose
Various Jets (See Jet Map)
The Bottle, Bottle Brackets, and Electrical Wire Pack are not pictured above. See “Electrical System
Installation” for Bill of Materials.
Catalog #70080-70083
Brochure No. 63-0312
Page 9
©2005 Edelbrock Corporation
Rev. 03/05
1.4b
2-Stage Performer RPM II Nitrous System Components
3
20
22
2
19
18
23
4
17
16
14
15
6
21
1
5
13
Item #
1
2
3
4
5
6
7
8
9
10
11
12
Qty.
1
2
1
4
1
1
1
2
2
1
2
2
12 11 10 9
Description
2-Stage Performer RPM II Plate
Gaskets
Main 14ft. Feed Line
Solenoid Brackets
Micro Switch Bracket
Bottle Nut Washer
6AN Bottle Nut
Blue 6AN Fitting
Red 6AN Fitting
1/4”NPT to 1/8”NPT Reducer
Blue 4AN Fitting
Red 4AN Fitting
8
7
Item #
13
14
15
16
17
18
19
20
21
22
23
Qty.
1
1
1
1
1
8
4
2
2
2
*
Description
6AN Flare Tee
Performer RPM Nitrous Solenoid
Performer RPM Fuel Solenoid
Victor Pro Fuel Solenoid
Victor Pro Nitrous Solenoid
Solenoid Mounting Screws
Carburetor Studs
Blue 12” 6AN Hose
Red 8 inch 4AN to 3AN Hose
Blue 12 inch 4AN to 3AN Hose
Various Jets (See Jet Map)
The Bottle, Bottle Brackets, and Electrical Wire Pack are not pictured above. See “Electrical System
Installation” for Bill of Materials.
Catalog #70080-70083
Brochure No. 63-0312
Page 10
©2005 Edelbrock Corporation
Rev. 03/05
2.0
Performer RPM II Nitrous System Installation
2.1
Nitrous Bottle Mounting
The nitrous oxide storage cylinder is typically called a “nitrous bottle”. It is an aluminum cylinder, designed
and manufactured to withstand very high pressures. The valve on top of the bottle is a high-flow design
that allows easy opening and closing which controls the nitrous flow to the engine compartment.
Accurate calibration of your nitrous system depends on the bottle remaining at a stable temperature. In
vehicles (such as Corvettes) where the bottle must be mounted in an area subject to direct sunlight, it is
suggested that the bottle be shielded with a bottle blanket.
If the bottle is mounted inside the passenger compartment or in a space that has access to the passenger
compartment such as hatchbacks or vehicles that feature fold down rear seats, the pressure relief device
(PRD valve) must be vented externally from the cockpit. This procedure will prevent the passenger
compartment from filling with a cloud of nitrous oxide, should the safety pressure relief valve rupture. For
more information, please contact our Technical Department.
Special consideration should be made to protect the bottle installation by not placing the bottle in
a known crumple or crash zone within the vehicle. At no time should the bottle be mounted within
the seating area of the passenger compartment of a street-driven vehicle.
Pressure
Relief Device
(PRD)
660
High
Flow Nitrous
Exit
Here is the Performer Bottle Valve. Installed on all bottle valves used in Edelbrock Nitrous Systems,
is a Pressure Relief Device or “PRD”. It is a safety valve designed to vent the contents of the bottle
into the atmosphere in case of a catastrophic event like a collision. It is also installed to prevent
the over-pressurization of the bottle. Unsafe bottle pressure is caused by over filling or elevated
bottle temperatures.
There are two types of PRDs. Internal piping and external piping. Internal requires no additional
parts. The external type requires a safety blowdown tube designed to route the gas, if the PRD
happens to rupture to the outside of vehicle. The internal type is design to vent directly off the
bottle into the atmosphere.
It is illegal to tamper with or remove this device.
Bottle Safety Information
1. Do not attempt to remove the bottle valve. Please return your bottle to Edelbrock if service is required to
the siphon tube inside the bottle or the bottle valve itself.
2. Never heat the outside of your nitrous bottle with an open flame like that of a torch.
3. Do not strike the surface of your nitrous bottle with a heavy or sharp object.
4. Do not drop your nitrous bottle.
5. Do not attempt to grind off or destroy any imprinted markings on the face of the bottle.
6. Do not remove, modify or otherwise tamper with the safety valve on the bottle valve.
7. Do not attempt to use a bottle that has been damaged or tampered with.
Racing Vehicles
Before you mount a nitrous bottle in a vehicle intended for use in racing or sanctioned events, check with the
sanctioning association or local racetrack for any rules regarding bottle installation. Most associations require the
bottle be mounted within the confines of the safety roll cage, with the safety pressure relief cap vented away from
the driver’s compartment.
Catalog #70080-70083
Brochure No. 63-0312
Page 11
©2005 Edelbrock Corporation
Rev. 03/05
2.2
Bottle Orientation
Bottle placement is critical to the performance of your nitrous system. It is important to understand how
the bottle valve and siphon tube are assembled to properly orient the bottle in your vehicle and ensure that
it picks up liquid nitrous while undergoing acceleration. All nitrous bottles are assembled so that the
bottom of the siphon tube is at the bottom of the bottle, opposite the bottle label.
An Edelbrock nitrous bottle cannot be mounted upside-down. Edelbrock does not offer a non-siphon tube
bottle for automotive use. If the bottle must be mounted parallel to the axles of the vehicle (sideways), the
label must be angled at approximately 45 degrees toward the front of the vehicle. This orientation will
position the siphon tube toward the rear and pointing to the lower rear-facing quadrant of the bottle. All
of this positioning information is critical to system operation. It is most important to draw as much liquid
nitrous as possible. The siphon tube cannot do this unless the bottle is positioned correctly.
The most efficient mounting is the lay-down position with the valve
handle toward the front of the vehicle. This position allows the greatest
amount of liquid to be used before the siphon tube begins to pick up
gaseous nitrous oxide.
Catalog #70080-70083
Brochure No. 63-0312
Page 12
©2005 Edelbrock Corporation
Rev. 03/05
2.3
Nitrous Bottle Installation
After you have determined the location and orientation of the nitrous bottle, use the following procedure
to install the bottle:
2.3.1 Street Car Installations
1. Disconnect vehicle’s battery.
2. Determine the location of the bottle within the confines of the rear of the vehicle.
3. Once a mounting location has been determined, raise the vehicle (following all safety practices
involved in working on a vehicle from under the vehicle) and verify that there are no fuel lines, fuel
tank(s), brake lines, emissions equipment, or structural members in the way of potential mounting bolt
locations.
Note: It may be necessary to remove the fuel tank depending on the location where you install the
bottle.
4. Install the rubber insulators within the bottle brackets.
5. Slip bottle into the mounting brackets.
6. Using the mounting bracket bolt holes as templates, mark an area for each of the brackets with chalk,
metal marking pen, scribe, or marking pen to locate the bolt placements for drilling.
7. Drill two (2) 3/8” mounting holes for each bracket.
8. If heater blanket is used, brackets must be installed 8 1/2 inches apart from each other.
9. Install the bottle mounting brackets using “Grade 8” bolts, nuts and flat washers (not included with
kit). Use fender washer underneath the vehicle for sheet metal mounting.
10. Tighten the mounting bolts using a thread locking compound (not included with kit).
11. Mock up Safety Blowdown tube on bottle to find where tube will go through floor.
12. Mark floor where tube appears it will go.
13. Using a 1/2” drill bit, drill through floor on mark.
14. Install Safety tube on bottle and cut off excess tube so that only 1 to 2 inches are protruding below
floor.
Shown here is a bottle with a bottle bracket properly installed with the
rubber insulator. The distance between the bottle brackets is
somewhat adjustable. Remember, mount the short bottle bracket at
least 1” from the bottom of the bottle, and never cover any of the bottle
label with a bottle bracket.
Do not attempt to install the bottle in the bracket without the rubber
insulator. The bottle hoop on the bracket is designed to include the
thickness of the insulator.
2.3.2 Race Car Nitrous Bottle Installations
Install the bottle brackets in accordance to race track and/or sanctioning body rules. Contact the
factory for assistance with meeting sanctioning body rules.
2.3.3 Nitrous Bottle Installations For Vehicles With Hatchbacks Or Trunk Areas That Are
Connected With The Passenger Compartment.
Please contact Edelbrock for more information.
Catalog #70080-70083
Brochure No. 63-0312
Page 13
©2005 Edelbrock Corporation
Rev. 03/05
2.4
Nitrous Feed Line Mounting
1. Determine the route your main nitrous feed line will follow. Ensure the path does not route the nitrous
feed line too close to the exhaust system, suspension, electrical lines/components or tires.
2. Attach nitrous supply line to bottle.
3. Feed nitrous line along proposed route.
4. Secure nitrous supply line to underside of vehicle.
Note: Stainless steel covering of the main nitrous feed line is very abrasive. Shield painted
components or sensitive system components like electrical, fuel lines, brake lines or suspension
components to prevent them from contacting main feed line. Rubber hose can be slid over and
retained as a chafe guard.
5. Leave nitrous line loose pending installation of nitrous solenoid.
2.5
Solenoid Mounting
Use the following procedures to install the Performer RPM II nitrous solenoid and fuel solenoid.
Note: Remember to use Teflon paste only on pipe threads. Do not use Teflon tape.
Hint:
Placement of the solenoid is often limited by the lack of possible mounting locations in the
engine compartment. However, if possible, observe the following suggestions:
Solenoid Safety Information
1. Keep solenoids and lines away from exhaust components.
2. Trial fit the solenoids with all lines attached to ensure a proper fit.
3. Solenoids may be mounted sideways or upside-down, if necessary.
2.5.1 Preparing To Mount Your Solenoids
1. Locate the universal solenoid brackets and solenoid mounting screws.
2. These solenoid brackets can be modified to clear almost any potental interference around the
carburetor/plate mounting surface. Please look at the pictures or potential solenoid mounting
locations and adapt your brackets according to the needs of your particular application.
Pictured here is an unmodified Victor Pro solenoid bracket with a modified bracket with solenoid attached, ready for
installation on an intake manifold.
The modifications can be performed by clamping the solenoid bracket in a bench vise, or by using wide jaw pliers.
Catalog #70080-70083
Brochure No. 63-0312
Page 14
©2005 Edelbrock Corporation
Rev. 03/05
2.6
Nitrous Solenoid Mounting and Installation
1.
2.
3.
4.
5.
6.
7.
Attach the solenoid mounting bracket to the bottom of the nitrous solenoid.
Hold the solenoid securely (like in a bench vise) being careful not to harm the solenoid or block the
inlet or outlet of the solenoid.
Install nitrous filter fitting (Blue fitting 6AN X 1/4 NPT) using liquid Teflon in the inlet port of the nitrous
solenoid.
Install the blue 4AN X 1/8 NPT flare fitting using liquid Teflon in the outlet port of the nitrous solenoid.
i. Remove nitrous solenoid assembly from vise.
iii. Verify desired mounting location for nitrous solenoid.
Install nitrous solenoid. If solenoid-mounting location is difficult to access, leave solenoid loose so the
solenoid inlet and outlet port can be easily accessed.
Leave wires loose for electrical system installation.
Attach nitrous feed line to the inlet side of the solenoid.
The modifications performed to a solenoid bracket depend on many factors. The considerations of
solenoid placement are the same for both Nitrous and Fuel. The modifications for all system brackets will
be different per your application.
The line length between the Victor Pro fuel solenoid and the jet fitting on the injection plate is 8 inches.
The line length between the Performer RPM nitrous solenoid and the jet fitting on the injection plate is 12
inches. Other factors or components that could potentially interfere with solenoid placement are:
•
•
•
•
•
•
•
•
2.7
Water neck/thermostat housings
Water fittings
Distributor housing
Vacuum advance canister
Air filter housing
Throttle linkage passageways
Valve covers and valve cover fasteners
EGR passageways
Fuel Solenoid Mounting and Installation
1. Hold the fuel solenoid securely (like in a bench vise) being careful not to harm the solenoid or block
the inlet or outlet of the solenoid.
2. Install the 1/4”NPT to 1/8”NPT Reducer into the inlet side of the Victor Pro Fuel Solenoid.
2. Install the 6AN X 1/4 NPT (Red straight fitting) fuel inlet fitting using liquid Teflon in the reducer in the
fuel solenoid.
3. Install the red 4AN X 1/8 NPT flare fitting using liquid Teflon in the outlet port of the fuel solenoid.
4. Remove fuel solenoid assembly from vise.
5. Attach the universal solenoid mounting bracket to the bottom of the fuel solenoid using 2 of the
solenoid mounting screws.
6. Verify the desired mounting location of the fuel solenoid.
7. Install the fuel solenoid. If the solenoid mounting location is difficult to access, leave the solenoid
loose so the solenoid inlet and outlet port can be easily accessed.
8. Leave the wires loose for the electrical system installation.
Catalog #70080-70083
Brochure No. 63-0312
Page 15
©2005 Edelbrock Corporation
Rev. 03/05
2.8
2-Stage Solenoid Mounting Information
When mounting your solenoids in a 2-stage configuration, special attention must be paid to you system
set-up. Be sure that you utilize the Performer RPM solenoids for your first stage, and the Victor Pro
solenoids for you second. The Performer RPM solenoids may not be capable of the flow rates required by
the high horsepower levels of the second stage. Please refer to the 2-stage wiring diagram to determine
proper solenoid connections.
2.9
Nitrous/Fuel Solenoid Disassembly and Inspection
1. Close the valve on the nitrous bottle.
2. Empty the main nitrous supply line.
3. Remove the solenoid from the engine and securely clamp it to a vise, taking great care not to damage
the solenoid.
4. Remove the solenoid cover retaining nut from the top of the solenoid.
5. Remove the coil and housing from the solenoid base.
6. Unscrew the stem from the solenoid base. Do this by using a solenoid stem removal tool or by “double
nutting” the stem and unscrewing the stem from the housing body. Do not use pliers on the solenoid
stem; damage to the stem will result.
7. Remove the stem, spring and plunger from the solenoid base paying close attention to the way they
are assembled.
8. Examine the plunger seal for swelling, cuts and abrasions. The seal surface should be flat, except for
a small circular indentation in the center of the seal.
Note: A seal that has been contaminated or over-pressurized will bulge from exposure to chemicals
other than fuel or nitrous oxide. It can appear to extend down from the plunger and be dome-shaped.
A contaminated seal may return to its original shape if left out in fresh air for approximately 48 hours.
It may then be returned to service. If it does not return to its original shape, it must be replaced.
9. Clean the solenoid body. Do not use an oil-based solvent to clean any part of the solenoid. Remove
all foreign matter and dirt. Make sure solenoid body is clean, dry and free of oils before assembly.
10. Replace the O-ring, plunger and piston spring.
11. Re-assemble the solenoid by reversing the disassembly procedure.
Catalog #70080-70083
Brochure No. 63-0312
Page 16
©2005 Edelbrock Corporation
Rev. 03/05
2.10
Nitrous Injection Plate Installation
The Edelbrock Nitrous System injection plate is a precision-designed CNC-machined component. It has
been designed to safely introduce a precise, metered nitrous and fuel signal to promote proper mixing and
distribution into the intake manifold. The jet map (see Jet Map Information section) will give you the
proper jets to use for each of the power levels available for this plate.
The jet fittings are color-coded for use with nitrous (blue) and fuel (red). The red fitting faces the front of
driver side of the engine and the blue fitting faces the passenger side of the engine. Look at the brass
tubes, a properly oriented plate will have the nitrous tube above the fuel tube ensuring the angled orifices
machined into the tube face oriented to the floor of the intake manifold.
Use the following procedure to install the injector plate:
1. Remove the carburetor air cleaner.
2. Mark all of the vacuum lines and external connections attached to the carburetor and disconnect
them.
3. Disconnect the throttle linkage from the carburetor.
4. Remove the carburetor.
5. Remove the stock carburetor studs and clean the mounting surface.
6. Install the extended carburetor studs supplied with the nitrous system.
7. Install the injector plate and gaskets supplied on to the intake manifold.
8. Install the carburetor.
9. Re-connect linkage and all external vacuum lines and fuel lines.
Note: Every precaution has been taken to ensure the cleanliness of our components during the
assembly of your Edelbrock Nitrous System. However, because of the importance of the jets and their
calibration, extra care should be taken before you install your jets. Wash them thoroughly with
carburetor cleaner or another non-oil based cleaner, before installing them into the plate.
2.11
Solenoid/Plate Plumbing Installation
1. Choose the final mounting location for your solenoids and mount them solidly.
2. Install the desired nitrous and fuel jets in the jet fittings of the plate. Remember, the red fitting is for
fuel and the blue fitting is for nitrous. Mixing the jets up when installing can result in serious engine
damage.
3. Using the braided steel line with the red ends, install the line on the red jet fitting on the plate and run
the other end to the fuel solenoid. Make sure that you do not use any thread sealant on these types
of fittings. Tighten both ends of the line.
4. Using the braided steel line with the blue ends, install the line of the blue jet fitting on the plate and
run the other end to the nitrous solenoid. Make sure that you do not use any thread sealant on these
types of fittings. Tighten both ends of the line.
Catalog #70080-70083
Brochure No. 63-0312
Page 17
©2005 Edelbrock Corporation
Rev. 03/05
2.12a Single Stage Electrical System Installation
Nitrous Electrical Components Bill of Materials (BOM)
Item #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Quantity
1 ea.
1 ea.
2 ea.
2 ea.
1 ea.
1 ea.
1 ea.
2 ea.
2 ea.
1 ea.
1 ea.
1 ea.
3 ea.
2 ea.
2 ea.
1 ea.
Description
Activation microswitch
Activation microswitch bracket (not shown)
Activation microswitch mounting nut
Activation microswitch mounting screw
30 amp relay
Wire harness with integral relay/fuse holder
Red lighted toggle switch
18/22g female spade connector, Nylon insulated
14/16g female spade connector, Nylon insulated
14-16g male spade connector, Nylon insulated
16/18, splice connector
14/16g 3/8” ring terminal, Nylon insulated
18/22g ring terminal #10 Stud, Nylon insulated
18/22g ring terminal #8 Stud, Nylon insulated (.187)
18/22g female spade connector, Nylon insulated
15 amp ATO blade fuse
Nomenclature Descriptions:
ATO… the fuse configuration is ATO. When replacing this fuse, ask for an ATO fuse.
“a”… Amperage.
Important: The wiring hardware and instructions included with this kit are intended for 12-volt electrical
systems only. Before attempting to wire your Edelbrock Performer nitrous oxide system, examine and follow
the wiring diagram on the following page. Please call the Edelbrock Technical department with any
questions concerning electrical wiring.
When working with electrical systems in your vehicle, it is a good idea to have a service manual that features
your vehicle. It is also good practice to have a book that specializes on the specialized techniques required
when working with vehicular electrical systems.
Catalog #70080-70083
Brochure No. 63-0312
Page 18
©2005 Edelbrock Corporation
Rev. 03/05
2.12a.1
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 and 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
System
Origin
Destination
Terminal Used
Red
Bat Voltage
Relay Harness
Bat. Volt. Signal
Red
Arming Switch
Underdash
Switched 12v
Black
Relay Ground
Relay Harness
Chassis Ground
Ring
Black
Solenoid Ground
Solenoids
Chassis Ground
Ring
Black
Arming Switch Grnd.
Arming Switch
Chassis Ground
Ring
Blue
Solenoid Power
Relay Harness
Solenoids
Spade
White
Microswitch
Relay Harness
Microswitch
Spade
White
Microswitch
Arming Switch
Microswitch
Spade
2.12a.2
Ring
Spade/Wire Intercept
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 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 30 amps, and the fuse is 15 amps.
Catalog #70080-70083
Brochure No. 63-0312
Page 19
©2005 Edelbrock Corporation
Rev. 03/05
Catalog #70080-70083
Brochure No. 63-0312
Page 20
©2005 Edelbrock Corporation
Rev. 03/05
Battery
Solenoid
_
+
Ground
14
8
Solenoid
RED
Fuse
11
Socket
13
10
8
Black
Blue
6
5
Ground
Relay
Socket
White
11
WARNING!
DO NOT CONNECT
TO THIS TERMINAL
4 (2)
3 (2)
2
1
Microswitch
RED
Switched
+12V
15
16
Supply
Volts
On
ACC
Ground
_
Ground
8
Black
12 (2)
Arming
Switch
7
2.13b 2-Stage Electrical System Installation
Nitrous Electrical Components Bill of Materials (BOM)
Item #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Qty.
1 ea.
1 ea.
2 ea.
2 ea.
1 ea.
1 ea.
1 ea.
6 ea.
2 ea.
2 ea.
3 ea.
5 ea.
1 ea.
1 ea.
1 ea.
1 ea.
2 ea.
Description
Activation microswitch
Activation microswitch bracket (not shown)
Activation microswitch mounting nut
Activation microswitch mounting screw
2-Stage 30-amp relay
Wire harness with integral relay / fuse holder
Red lighted toggle switch
18/22g female spade connector, Nylon insulated
14/16 female spade connector, Nylon insulated
14/16g male spade connector, Nylon insulated
16/18, splice connector
14/16g 3/8” ring terminal, Nylon insulated
Male blade fuse tap
14/16g male spade connector, Nylon insulated
Nitrous 2nd stage push button
20-amp ATO blade fuse
18/22g female spade connector, Nylon insulated
Nomenclature Descriptions:
ATO… the fuse configuration is ATO. When replacing this fuse, ask for an ATO fuse.
“a”… Amperage.
Important: The wiring hardware and instructions included with this kit are intended for 12-volt electrical
systems only. Before attempting to wire your Edelbrock Performer nitrous oxide system, examine and follow
the wiring diagram on the following page. Please call the Edelbrock Technical department with any
questions concerning electrical wiring.
When working with electrical systems in your vehicle, it is a good idea to have a service manual that features
your vehicle. It is also good practice to have a book that specializes on the specialized techniques required
when working with vehicular electrical systems.
Catalog #70080-70083
Brochure No. 63-0312
Page 21
©2005 Edelbrock Corporation
Rev. 03/05
2.13b.1
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 ruse 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
2.13b.2
Origin
Relay Harness
Destination
Bat. Volt. Signal
Terminal Used
Ring
Blue
Yellow
Green
Black
White
White
Red
System
Main System Bat.
Voltage Arming Switch
2nd Stage Functions
1st Stage Functions
2nd Stage Functions
1st Stage Functions
Main System Arming
Main System Arming
Main System Arming
Relay Harness
Relay Harness
Relay Harness
Relay Harness
Relay Harness
Relay Harness
Arming Switch
2nd Stage Solenoids
1st Stage Solenoids
2nd Stage Pushbutton
Microswitch
Toggle Switch
White Sys. Arm Wire
Switched 12V Power
Black
Black
Black
Black
Black
Black
Black
Main System Arming
1st Stage Functions
1st Stage Functions
1st Stage Functions
2nd Stage Functions
1st Stage Functions
2nd Stage Functions
Arming Switch
Microswitch
Microswitch
1st Stage Solenoids
2nd Stage Solenoids
1st Stage Solenoids
2nd Stage Solenoids
Ground
Ground
Pushbutton
Yellow Wire
Blue Wire
Ground
Ground
M/F Spades
M/F Spades
Female Spade
Female Spade
Female Spade
Splice Connector
2 F Spades,
Blade Connector
F Spade, Ring
F Spade, Ring
Splice, F Spade
Male Spade
Male Spade
Ring Terminal
Ring Terminal
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 not
cutting 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, 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 to prevent wire
damage.
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.
Catalog #70080-70083
Brochure No. 63-0312
Page 22
©2005 Edelbrock Corporation
Rev. 03/05
Catalog #70080-70083
Brochure No. 63-0312
Page 23
©2005 Edelbrock Corporation
Rev. 03/05
2.14
Arming Switch and Installation
The arming switch is a red, lighted switch that is a “MASTER” arming switch for your nitrous system.
Without it, your nitrous system would be “on” all of the time and capable of engaging anytime you go to
wide-open throttle conditions with your vehicle. The switch, when in the “armed” position, is well-lit.
Therefore, it should be placed in an obvious position well within the line of sight and easy reach of the
driver. Please refer to the procedures below for the installation of the arming switch:
1.
2.
3.
4.
Locate the final position of your arming switch.
Drill a .450” (approx. 29/64”) hole for the switch location.
Insert the switch from behind the mounting hole and secure with the switch nut.
Do not wire until all other mechanical components are in place. Please see the electrical system
installation instructions for further information.
Note: There is a collar included with the switch for applications that require special spacing during
installation.
2.15
Microswitch Installation and Wiring
The function of your microswitch is to enable your nitrous system. It should be installed so that the switch
is forced closed by coming in contact with the throttle linkage only at the wide open throttle position. The
nitrous system must only function at fully-loaded wide-open throttle.
MICROSWITCH SAFETY INFORMATION
1. Do not allow wiring from the microswitch to come in contact with heat sources on the intake
manifold such as EGR risers or passageways.
2. Do not run wires to the microswitch that can create interference with the operation of the throttle
linkage.
3. The microswitch must be located in such a way as to be clear of the normal operation of the throttle
linkage.
4. Do not directly expose the microswitch to liquids such as water or gasoline.
This is a picture of an un-modified and “ready to install” microswitch assembly. The microswitch
bracket has several mounting positions available for clocking of the switch. It also is of a universal
length and can be attached to several positions on and around the throttle body.
Catalog #70080-70083
Brochure No. 63-0312
Page 24
©2005 Edelbrock Corporation
Rev. 03/05
2.16
Microswitch Installation and Wiring (continuation)...
The bolts used to attach the microswitch have extra length to allow for spacing the microswitch away
from the bracket to offer a level of adjustability of the microswitch. After determining the position of the
microswitch, we recommend trimming the bolts for a clean installation.
Due to the wide variety of throttle linkage combinations in use, it is impossible to supply a microswitch
bracket custom tailored to each application. The universal bracket supplied will need to be modified to fit
your specific application.
Here is a microswitch assembly mounted for use. It is
an example of one of many ways in which to mount a
microswitch on your carburetor. The microswitch
bracket allows for many different mounting positions.
The microswitch bracket can be modified to clear
almost any potential interference around the throttle
linkage.
The microswitch bracket supplied is drilled to permit
many different switch mounting positions. This
flexibility allows for the microswitch to be positioned
in such a manner to engage the carburetor linkage
without interfering with its normal and safe operation. The bracket may be manipulated (bent, twisted,
and/or cut) to best suit your combination. Mount the microswitch on the carburetor so the actuation arm
is triggered by the throttle linkage making sure that all wiring and the bracket do not interfere with the
smooth and safe operation of the carburetor. Be sure the actuation arm “clicks” at the point where the
carburetor is wide open.
2.17
Final Electrical Installation Recommendations
At this time, it is advised that you double-check the following areas:
1. Double Check all wires so that they do not come in contact with any heat sources like exhaust
manifolds, and EGR crossovers, etc.
2. Double Check the wires that lead from the microswitch to ensure that they do not interfere with the
operation of the throttle body linkage.
You are now ready to hook up your battery and prepare your vehicle to run.
Catalog #70080-70083
Brochure No. 63-0312
Page 25
©2005 Edelbrock Corporation
Rev. 03/05
3.0
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.
3.1
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 fuel lines and 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 microswitch, which will
open the fuel and nitrous solenoids. Listen for a loud click or hold the solenoids while you active the
microswitch. Engine speed should decrease if the fuel solenoid and delivery system are performering
properly. If not, refer to “Trouble Shooting Guide”.
3.2
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.
Catalog #70080-70083
Brochure No. 63-0312
Page 26
©2005 Edelbrock Corporation
Rev. 03/05
4.0
Baseline Tuning Suggestions
Utilizing nitrous oxide as a power adder is similar to a supercharger or a turbocharger in that it increases the
amount of air an engine can get over a naturally aspirated condition. There are some significant differences:
1. Nitrous oxide is very oxygen rich. This oxygen is of a much higher density, so the opportunity to extract
very high quotients of power is high.
2. Nitrous oxide injection does not have a parasitic load factor associated with its use like a turbocharger or
supercharger. Meaning, it does not cost horsepower as a crank-driven supercharger or an exhaust-driven
turbocharger.
3. Nitrous is instantaneous and their is no lag time such as what you would encounter with a turbocharger.
The most important thing to remember when looking at baseline tuning issues associated with nitrous oxide is
that a lean condition is bad. Two parameters that will keep you from catastrophically affecting your engine are:
4.1 Nitrous Bottle Pressure...Always keep your bottle pressure between 900 and 950 psi. Yes, there are
racers that use different pressures, but the testing we did here at Edelbrock to ensure the jetting maps
within this manual are correct, was done in this pressure range. Use any higher pressure than 950 psi
and you will be lean. Use any pressures below 900 psi and you will be rich.
4.2 Fuel Pressure...Always ensure you have between 6-7 psi of fuel pressure every time you enable your
nitrous system. We used 6.5 to 7 psi of fuel pressure to perform our jet map testing on this system. If
you do not have at least 6psi of fuel pressure going to the fuel solenoid, when it is activated, you will be
encountering a lean condition. If you were to have more than 7 psi of fuel pressure, when it is activated,
to the fuel solenoid, you would have a rich condition.
The jet map provided for your Performer RPM II nitrous system is purposely rich, or biased to the fuel side of the
nitrous to fuel ratio. There are many different ways to jet to a specific power level. However, for the continued
safe operation of your nitrous system, we suggest you do not move too far away from the jet map listed within
this manual. Catastrophic engine failure could result.
Your Performer RPM II nitrous system comes with matched sets of nitrous and fuel jets. These are conservative
jetting combinations, based upon 900 to 950 psi nitrous oxide bottle pressure, and 6.5 to 7 psi flowing fuel
pressure. Operating with these pressure levels should yield safe and reliable power increases.
Catalog #70080-70083
Brochure No. 63-0312
Page 27
©2005 Edelbrock Corporation
Rev. 03/05
How to Read Spark Plugs From a Nitrous Oxide Injected Engine...
Spark plugs are a window into the combustion chamber. They will tell you many things about the operation
of the vehicle. Here are some tips on looking at spark plugs to “read” what is happening with your engine:
Correct timing, mixture and spark plug heat range
Ground strap retains “like new” appearance. Edges are crisp, with no signs of discoloration. Porcelain
retains clear white appearance with no “peppering” or spotting.
Excessively rich mixture
Porcelain may be fuel-stained, appearing brown or black. In extreme cases, ground strap, electrode and
porcelain may be damp with gasoline, or smell of fuel.
Detonation
Edges of ground strap may become rounded. Porcelain has the appearance of being sprinkled with
pepper, or may have aluminum speckles. During heavy detonation, the ground strap tip may burn off. This
phenomena can result from excessive ignition timing, too high a heat range spark plug, or inadequate fuel
octane.
Excessively lean mixture
Edges of ground strap may become rounded, or broken. (Under moderate overheating, the tip of the
ground strap can discolor, usually turning purple, or the entire ground strap can become discolored.)
5.0
Ignition Timing and Nitrous
Because we are oxidizing the air/fuel mix going into the engine when nitrous oxide is used, we must pay close
attention to the ignition timing profile. Remember, “nitrous” oxygen is more dense than “atmospheric” oxygen and
resulting in an accelerated burn rate of your fuel.
In anticipation of the quicker burn time, you must retard the timing of the ignition system when using nitrous oxide.
The more power we try to make, the more timing in degrees we must remove from the timing profile. This is not
in total advance but the time in which we bring timing in (the advance curve).
This is why all nitrous users are so concerned with evidence of detonation. The accelerated burn rate of the
air/fuel charge can cause severe detonation without a “nitrous” ignition strategy. A timing profile that is
accelerated and a total timing number retarded will keep you from experiencing catastrophic engine damage.
The general rule of nitrous use ignition timing should be to retard the “total” advance number approximately 2
degrees for every 50 HP increase when using nitrous oxide. It is always best to start with your engines best total
timing (without nitrous) and reduce total timing from there. Use an initial timing retard setting that is at least 2-4
degrees more retarded than you expect to be the best setting for your application. All stated timing adjustments
listed in jet maps is where the motor being tested worked best.
When using aftermarket ignition components and/or systems, it would be advisable to contact the manufacturer
for information on using their components with a nitrous system. It is always better to be very conservative in
your timing approach and tune towards an optimum timing setting.
Catalog #70080-70083
Brochure No. 63-0312
Page 28
©2005 Edelbrock Corporation
Rev. 03/05
Example:
Ignition timing without Nitrous Oxide
100 HP increase from Nitrous Oxide
Initial safety margin
Total timing with Nitrous Oxide
38 degrees “total”
2 degrees “retard”
2 degrees “retard”
34 degrees “total”
Testing Checklist
Suggestions on How To Perform Accurate and Repeatable Tests with a Nitrous Vehicle:
1. Testing should be done on a dyno. Never street race - always obey all traffic laws.
2. Always test with your vehicle when up to normal operating temperatures and operating conditions.
3. Ensure all vehicle systems and components are adjusted to proper settings (tire pressures, oil levels,
coolant levels, etc.).
4. Always verify fuel pressures and nitrous pressures are the same, every time you test the vehicle. Different
pressures will always yield different results.
5. Use all of your senses to determine how your vehicle is operating. Listen for detonation, watch your
gauges, smell for strange odors, etc.
Catalog #70080-70083
Brochure No. 63-0312
Page 29
©2005 Edelbrock Corporation
Rev. 03/05
6.0
Troubleshooting Your Edelbrock Nitrous System
How to use our Troubleshooting Flowchart:
The troubleshooting of a nitrous system is basic and straightforward. The symptom chart is divided by symptom, cause
and action required. Determine your problem (symptom), identify the potential problem (cause) and correct the problem
(action required).
Symptom #1… There is No change in engine speed when fuel solenoid is activated.
1. System wired incorrectly.
a. Compare wiring to schematic.
i. Wire per instructions. See “Nitrous Electrical System Wiring Diagram” section.
2. Restricted fuel line.
a. Inspect fuel line for restrictions.
i. Remove restrictions (kinks in rubber line, pieces of rubber hanging in flow path, etc.).
ii. Change fuel line routing.
b. Check Fuel Pressure.
i. Increase fuel delivery as needed.
c. Service the nitrous system fuel filter?
i. Replace/clean filter.
3. Malfunctioning fuel solenoid.
a. Turn arming switch on, engine off. Activate microswitch, listen for the solenoids to “click”. If no click is
heard...
i. Repair/Replace solenoid.
ii. Check wire connections.
iii. Verify the power is on.
iv. Perform the wire “wiggle” test.
Symptom #2… Change in engine speed when nitrous bottle valve is opened.
1. Malfunctioning nitrous solenoid.
a. Repair/replace solenoid. See “Solenoid Inspection and Maintenance” section.
2. Contamination in nitrous solenoid.
a. Remove and inspect solenoid for dirt around seat area of plunger in solenoid.
Symptom #3… Engine runs excessively rich when system is activated.
1. Nitrous bottle valve not fully opened.
a. Check bottle valve.
i. Open valve fully.
2. Nitrous bottle mounted improperly.
a. Mount bottle properly. See “Nitrous Bottle Installation” section.
3. Plugged nitrous filter.
a. Clean and/or replace nitrous filter.
b. See nitrous solenoid symptom #2.
4. Low bottle pressure.
a. Weigh bottle.
i. Bottle should be 10 lbs. above empty bottle weight listed on bottle label when full.
b. Check bottle temperature.
i. Maintain 80 to 85 degrees of bottle surface temperature.
Catalog #70080-70083
Brochure No. 63-0312
Page 30
©2005 Edelbrock Corporation
Rev. 03/05
Symptom #4… No change in performance when system is activated.
1. System wired incorrectly.
a. Compare wiring to schematic.
i. Wire per instructions.
2. Loose ground wires.
a. Connect test light to battery “+” (positive) terminal. Check for continuity at grounds.
i. Tighten/repair loose grounds.
3. No power to arming switch.
a. With ignition on, connect test light to battery “–” (negative) terminal. Check for power at pole #1
on arming switch.
i. Repair wiring.
4. Malfunctioning arming switch.
a. With ignition on, turn arming switch on. Connect test light to battery “–” (negative) terminal.
Check for power at red wire on arming switch.
i. Replace arming switch.
5. Malfunctioning microswitch.
a. Turn arming toggle off. Close throttle microswitch, check for continuity between microswitch
wiring terminals.
i. Replace microswitch.
6. Inadequate nitrous supply.
a. Weigh bottle.
i. Bottle should be 10 lbs. above empty bottle weight listed on bottle label when full.
b. Check bottle temperature.
i. Maintain 80 to 85 degrees of bottle surface temperature.
c. Check bottle valve.
i. Open valve fully.
d. Check bottle orientation.
i. Mount bottle properly.
7. Mismatched nitrous/fuel jetting
a. Compare jetting to recommended values.
i. Install correct jets
b. Verify the number stamped in the jet match the desired power level.
i. Acquire the right size jets and install correct jets.
8. Excessive fuel pressure.
a. Perform Fuel Pressure Test Procedure.
b. Install fuel pressure gauge.
i. Regulate pressure to proper settings.
9. Loose nitrous solenoid wiring.
a. Inspect solenoid wiring. See “Electrical System Installation” section.
b. Consult a book concerning proper wiring methods.
10. Malfunctioning nitrous solenoid.
a. Inspect solenoid wiring. See “Electrical System Installation” section.
i. Repair wiring.
b. Inspect solenoid. See symptom #2.
i. Rebuild/replace solenoid.
Catalog #70080-70083
Brochure No. 63-0312
Page 31
©2005 Edelbrock Corporation
Rev. 03/05
Symptom #5… Engine detonates mildly when system is activated.
1. Excessive ignition timing.
a. Check timing.
i. Reduce timing in 2-degree increments for every 50 hp.
2. Inadequate octane fuel.
a. Verify what gasoline you use.
i. Use higher-octane fuel.
3. Spark plug heat range too high.
a. Verify what heat range the spark plug is, and how it functions in a high load, high performance
application.
i. Install a performance spark plug.
ii. Reduce spark plug heat range.
4. Too little fuel flow.
a. Check pressure and flow.
i. Correct fuel flow to proper specification.
5. Too much nitrous flow.
a. Verify the size of the nitrous jet.
i. Install the proper nitrous jet.
b. Check bottle temperature and pressure.
i. Ensure before every nitrous usage that you only use nitrous when the temperature and pressure of
your bottle are correct.
Symptom #6… Engine detonates heavily when system is activated.
Inadequate fuel delivery due to:
1. Plugged fuel filter.
a. Inspect fuel filter.
i. Clean or replace filter.
2. Crimped fuel line.
a. Inspect fuel line.
i. Replace crimped line.
3. Weak or inadequate fuel pump.
a. Install fuel pressure gauge. Run engine under load at wide-open throttle, with system activated.
i. Repair or replace fuel pump.
ii. Install nitrous dedicated fuel supply.
Symptom #7… High RPM misfire when system is activated.
1. Excessive spark plug gap.
a. Inspect spark plugs.
i. Set plug gap at 0.030 – 0.035 inch.
ii. Contact the manufacturer of your plugs for more information.
2. Weak ignition/ignition component failure.
a. Inspect ignition components.
i. Replace worn components.
ii. Upgrade ignition system to high performance high load capable ignition components.
Catalog #70080-70083
Brochure No. 63-0312
Page 32
©2005 Edelbrock Corporation
Rev. 03/05
Symptom #8… Vehicle surges under acceleration when system is activated.
1. Inadequate nitrous supply.
a. Weigh bottle.
i. Bottle should be 10 lbs. above empty bottle weight listed on bottle label when full.
b. Check bottle temperature.
i. Maintain 80 to 85 degrees of bottle surface temperature.
c. Check bottle valve.
i. Open valve fully
d. Check bottle orientation.
i. Mount bottle properly.
Catalog #70080-70083
Brochure No. 63-0312
Page 33
©2005 Edelbrock Corporation
Rev. 03/05