Edelbrock 70070 user manual
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.
PERFORMER RPM SERIES NITROUS SYSTEM
Table of Contents
a. Before You Install Your Edelbrock Nitrous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
b. What is Nitrous Oxide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
c. Safety Tips for Working with Nitrous Oxide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.0 Introduction to the Edelbrock Nitrous Systems Kit
1.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Jet Map Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Engine Operation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Performer RPM System Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 Performer RPM System Installation
2.1 Nitrous Bottle Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Bottle Orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Page #
2.3 Nitrous Bottle Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Nitrous Feed Line Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Solenoid Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Nitrous Solenoid Mounting and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 Fuel Solenoid Mounting and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.8 Nitrous/Fuel Solenoid Disassembly and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.9 Nitrous Injection Plate Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10 Solenoid/Plate Plumbing Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.11 Electrical System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.12 Relay and Fuse Holder Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.13 Arming Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.14 Microswitch Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-18
2.15 Final Electrical Installation Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.0 Before You Run Your Vehicle With Nitrous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.0 Baseline Tuning Suggestions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.0 Ignition Timing and Nitrous Oxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
6.0 Trouble Shooting and Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-25
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Page 1 of 25
Rev. 11/01
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 jack stands
• 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
''
©
2001 Edelbrock Corporation
Brochure No. 63-0040
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 2 of 25
Rev. 11/01
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.
RR
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.
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Page 3 of 25
Rev. 11/01
1.0 Introduction to your Edelbrock Performer RPM 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 .
RR
&
''
….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 Nitrous System (Part number 70070) is intended for use on
domestic V-8 engines using the Pro-Flo manifold, throttle body and injection. 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.
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Page 4 of 25
Rev. 11/01
1.2 Jet Map Information
Edelbrock engineering has conducted dyno testing with the Performer RPM system to provide jetting maps
for two different jetting levels. These jet combinations are supplied with this system to enable you to vary
your engine’s power output. On a typical mildly modified 350 cubic inch engine, you can expect the
following approximate power gains for each of the two jetting levels:
Pro-Flo Jet Map #70070
Nitrous/Fuel Jetting Approx. HP Gains Final Air/Fuel Ratio Timing Adj. Over 4500RPM
59/39 100hp 10.5:1 8 deg Retard
72/50 150hp 10.8:1 8 deg Retard
The dyno tests were conducted at Edelbrock using a mildly modified 350 cubic inch engine Modifications
included Edelbrock intake manifold, dyno headers and improved ignition. These tests were conducted with
950 psi nitrous and 48.5 psi fuel pressure.
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.
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 48.5 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 it’s effects on final air/fuel ratios when using nitrous oxide.
• 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.
• Cast 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. 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, manifolds can
all add to the performance of a nitrous oxide injected engine.
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Page 5 of 25
Rev. 11/01
1.4 Performer RPM Kit Bill of Materials
Qty. Description
Plates and Plate Hardware
1 ea. Performer RPM Pro-Flo Plate, 70070 System
2 ea. Pro-Flo Gaskets
4 ea. Carb Studs
Solenoids and Solenoid Hardware
1 ea. Performer RPM Nitrous Solenoid (Black)
1 ea. Performer RPM Fuel Solenoid (Red)
2 ea. Solenoid Brackets with Screws (4 ea)
1 ea. 12” Nitrous Feed Line (Blue), Solenoid to Plate
1 ea. 8” Fuel Feed Line (Red), Solenoid to Plate
Fittings
1 ea. N2O Filter Fitting, 4AN x 1/8” NPT, Blue
1 ea. 6AN x 1/4” NPT Fuel Fitting, Red
1 ea. 4AN x 1/8” NPT Nitrous Fitting, Blue
1 ea. 4AN x 1/8” NPT Fuel Fitting, Red
Jets
4 ea. 2 Nitrous Jets, 2 Fuel Jets
Bottle and Bottle Hardware
1 ea. 10lb, Nitrous Bottle
1 pr. Nitrous Bottle Bracket Set (1 Tall, 1 Short)
1 ea. 660 Bottle Nut and Teflon Washer
1 ea. 14’ Nitrous Feed Line, Bottle to Solenoid
Electrical System Components
1 ea. Electrical Component Package (see page 16 for BOM)
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Technical Information
1 ea. Performer System Information Packet
Page 6 of 25
Rev. 11/01
2.0 Performer RPM System Installations
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 the tech line.
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.
Bottle Valve Handle Pictured
Pressure Relief
Device (PRD)
Bottle Safety Information
RR
1. Do not attempt to remove the bottle valve. Please return your bottle to Edelbrock if service is required
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.
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
660 High Flow
Nitrous Exit
to the siphon tube inside the bottle or the bottle valve itself.
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.
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.
©
2001 Edelbrock Corporation
Brochure No. 63-0040
Page 7 of 25
Rev. 11/01
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