Installation manual | Edelbrock 70406 Automobile Parts 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.
©2002 Edelbrock Corporation
Rev. 10/02
Brochure No. 63-0144
Catalog #70406
MERCURY MARAUDER PERFORMER
EFI SERIES NITROUS SYSTEM
Catalog #70406
Table of Contents
Page #
a.
1.0
2.0
3.0
4.0
Before You Install Your Edelbrock Nitrous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
b.
What is Nitrous Oxide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
c.
Safety Tips for Working with Nitrous Oxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction to your Edelbrock Performer Nitrous System
1.1
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2
Jet Map Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3
Engine Operation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4
Mercury Marauder Performer EFI Series Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Performer Series Nitrous System Installation
2.1
Nitrous Bottle Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Nitrous Bottle Mounting Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3
Nitrous Bottle Orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4
Nitrous Bottle Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5
Nitrous Feed Line Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6
Solenoid Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6.1
Preparing to Mount your Solenoids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6.2
Nitrous Solenoids Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7
Nitrous Spray Nozzle Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
2.8
Fuel Pressure Safety Switch Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical System Installation
3.1
Electrical Components Bill of Materials (BOM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2
Nomenclature Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3
Electrical System Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4
Nitrous Electrical System Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5
Nitrous Relay and Fuse Holder Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.6
Arming Switch and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.7
Microswitch Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
3.8
Final Electrical Installation Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Before You Run Your Edelbrock Nitrous System
4.1
Fuel System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2
Nitrous System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.0
Troubleshooting and Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-20
6.0
Solenoid Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
©2002 Edelbrock Corporation
Rev. 10/02
Page 1 of 21
Brochure No. 63-0144
Catalog #70406
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
❑ Vehicle jackstands
❑ Safety glasses
Power Tools
❑ Power drill
❑ Drill bits (1/4”, 1/2” and 3/8”)
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
℡
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 2 of 21
Brochure No. 63-0144
Catalog #70406
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.
2.
3.
4.
5.
6.
7.
8.
9.
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.
When working around any high-pressure gas including nitrous oxide, take all precautions to ensure that exposure to nitrous oxide is
minimized.
Do not vent nitrous oxide to atmosphere in confined spaces. Only vent nitrous oxide in well-ventilated and open areas.
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.
When venting down the nitrous system, vent the line down closest to the nitrous bottle.
Do not use any form of Teflon tape as sealant on fitting connections. Use only Teflon paste.
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.
Always turn the bottle off before making any repairs to the nitrous delivery system.
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 3 of 21
Brochure No. 63-0144
Catalog #70406
1.0
Introduction to your Edelbrock Mercury Marauder Performer EFI Nitrous System
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 EFI Nitrous System (Part Number 70406) is designed for the 2003 & Later Mercury
Marauder with stock or slightly modified 4.6L DOHC engines. Horsepower and torque increases can vary with
equipment upgrades and modifications.
This system utilizes two nozzle. One is installed in the intake box just before the Mass Air Flow sensor (MAF) and one before
the throttle body. The additional fuel needed is supplied by the vehicle’s standard fuel system.
This system has been designed with some flexibility as to where certain components can be located to allow easy installation
on vehicles with upgraded or modified equipment. The solenoid and microswitch brackets are designed to be manipulated
(bent, cut, twisted, etc.) and the electrical components have properly-sized and ample lengths of wire.
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 4 of 21
Brochure No. 63-0144
Catalog #70406
1.2
Jet Map Information
Edelbrock engineering has conducted dyno testing with the Edelbrock Mercury Marauder Performer EFI system to ensure the
horsepower increase the nitrous system is as intended. On a typically stock 4.6L engine, you can expect the following
approximate power gain:
Nitrous / Jetting
Approx. HP Gains
32/30 (Both Nitrous)
70
The dyno tests were conducted at Edelbrock using a stock 4.6L DOHC engine. These tests were conducted with 950 psi nitrous
bottle pressure.
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:
System Jetting
Never exceed the recommended jetting!!! Excessive jetting will result in severe engine damage.
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.
Ignition Components
Most aftermarket performance chips increase the vehicle’s ignition timing, which can cause detonation with the use of nitrous
oxide. Please consult with your chip manufacturer on information regarding the compatibility of your chip with nitrous oxide
use.
If your vehicle is equipped with platinum-type spark plugs, we highly recommend they be removed and replaced with the
equivalent standard-type spark plugs.
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, fuel controls and fuel pumps can all add to the performance of a nitrous oxide
injected engine.
©2002 Edelbrock Corporation
Rev. 10/02
Page 5 of 21
Brochure No. 63-0144
Catalog #70406
1.4
QTY.
Mercury Marauder Performer EFI Series Bill of Materials
DESCRIPTION
QTY.
DESCRIPTION
Nozzle and Nozzle Hardware
Fuel Pressure Safety Switch and Hardware
1
90º Nitrous fan spray nozzle
1
30 psi Fuel pressure safety switch
1
Straight Nitrous fan spray nozzle
1
Fuel Rail Hobbs adapter
2
Nitrous fan spray nozzle bulkhead body bolt
2
Nitrous fan spray nozzle bulkhead concave nut
Solenoids and Solenoid Hardware
Bottle and Bottle Hardware
1
10-lb. Nitrous bottle
1
Nitrous bottle bracket set (1 tall, 1 short)
2
Performer Nitrous solenoids
2
Rubber insulators (for bracket)
1
Solenoid tee 1/8 NPT mm x 1/8 NPT female x
1
4AN x 660 Bottle nut and washer
2
Bolts, bottle bracket 5/16” x 18 x 1-1/2”
1/8 NPT male
1
EFI solenoid mounting bracket
2
Nuts, bottle bracket 5/16” x 18
4
Solenoid mounting screws (8 x 32 UNC x 5/16”)
1
4AN 18 ft. main feed line
1
Nitrous filter, 4AN x 1/8 NPT, straight fitting,blue
1
3AN x 1/8 NPT Flare tee, blue
Jets
2
24” 3AN Teflon stainless steel braided hose
1
Jet #32
90-degree
1
Jet #30
1
1/8 NPT pipe plug
Electrical System Components
1
©2002 Edelbrock Corporation
Rev. 10/02
Page 6 of 21
Electrical Component Package (see page 13 for BOM)
Brochure No. 63-0144
Catalog #70406
2.0
Performer 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 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.
Bottle Valve Handle
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 overpressurization of the bottle. Unsafe bottle pressure is caused by over filling or
elevated bottle temperatures.
Pressure Relief
Device (PRD)
660 High Flow
Nitrous Exit
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 7 of 21
Brochure No. 63-0144
Catalog #70406
2.2
Bottle Mounting Instructions
Accurate calibration of your nitrous system depends on the bottle remaining at a stable temperature. Choosing the proper
location and orientation for your bottle can greatly affect the overall operation of the nitrous system. Please read the entire
bottle mounting instruction section before making your final bottle location decisions.
2.3
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 8 of 21
Brochure No. 63-0144
Catalog #70406
2.4
Nitrous Bottle Installation
After you have determined the location and orientation of the nitrous bottle, use the following procedure to install the bottle:
2.4.1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Street Car Installations
Disconnect vehicle’s battery.
Determine the location of the bottle within the confines of the rear of the vehicle.
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.
Install the rubber insulators within the bottle brackets.
Slip bottle into the mounting brackets.
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.
Wearing your safety glasses, drill two (2) 3/8” mounting holes for each bracket.
If heater blanket is used, brackets must be installed 8 1/2 inches apart from each other.
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.
Tighten the mounting bolts using a thread locking compound (not included with kit).
Mock up Safety Blowdown tube on bottle to find where tube will go through floor.
Mark floor where tube appears it will go.
Wearing your safety glasses, use a 1/2” drill bit and drill through floor on mark.
Install Safety Blowdown 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.
2.4.2
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.
2.4.3
Nitrous Bottle Installations For Vehicles With Hatchbacks Or Trunk Areas That Are Connected With The
Passenger Compartment.
Please contact Edelbrock for more information.
©2002 Edelbrock Corporation
Rev. 10/02
Page 9 of 21
Brochure No. 63-0144
Catalog #70406
2.5
Nitrous Feed Line Mounting
1.
2.
3.
4.
5.
2.6
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.
Attach nitrous supply line to bottle.
Feed nitrous line along proposed route.
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.
Leave nitrous line loose pending installation of nitrous solenoid.
Solenoid Mounting
Use the following procedures to install the Performer nitrous solenoids:
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.
2.
3.
Keep solenoid and lines away from exhaust components.
Trial fit the solenoids with all lines attached to ensure a proper fit.
Solenoids may be mounted sideways or upside-down, if necessary.
2.6.1
Preparing To Mount Your Solenoids
1.
2.
2.6.2
Locate the EFI solenoid bracket, solenoid “tee”, and solenoid mounting screws.
This solenoid bracket can be modified (bent, twisted and/or cut) to allow for easier installation in areas with
minimal clearance . Please look at the photo on the next page of a typical solenoid mounting location, and adapt
your bracket according to the needs of your particular application.
Nitrous Solenoids Mounting
1.
2.
3.
4.
5.
6.
©2002 Edelbrock Corporation
Rev. 10/02
Hold one of the nitrous solenoids 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 4AN X 1/8 NPT) using liquid Teflon, in the inlet port of the nitrous solenoid.
Install one of the 1/8 NPT male sides of solenoid "tee", using liquid Teflon, on the outlet port of the nitrous
solenoid. The female port of solenoid "tee" should be facing outward.
Install the remaining 1/8 NPT male end of the solenoid "tee", using liquid Teflon, into the inlet port of the second
nitrous solenoid. Rotate second solenoid so that it parallels the first.
Install the 3AN Flare Tee (blue “T” shaped fitting) into the outlet port of second nitrous solenoid.
Using liquid Teflon, install 1/8 NPT pipe plug into remaining opening of solenoid " tee ".
a. Remove nitrous solenoid assembly from vise.
b. Attach EFI solenoid bracket to the bottom of the solenoids.
c. Verify the desired mounting location for the solenoid assembly.
Page 10 of 21
Brochure No. 63-0144
Catalog #70406
2.6.2
Nitrous Solenoids Mounting (Continued)
7.
8.
9.
Install solenoid assembly in desired location.
Leave all wiring loose for electrical systems installation.
Connect main nitrous feed line to inlet fitting (4AN x 1/8 NPT nitrous filter fitting) of the first nitrous solenoid
and 3AN 90º lines to 3AN Outlet Flare Tee.
1/8” NPT Plug
Inlet Fitting
3AN Flare Tee
Inlet Port
Outlet Port
Here is a typical EFI solenoid assembly, mounted in the
engine compartment of our Mercury Marauder, using a
non-modified EFI solenoid bracket. Modifications
performed to a solenoid bracket depend on many factors.
When mounting the solenoid assembly on the vehicle,
considerations should be taken regarding any potential
interference with the vehicle's systems or components.
The line length between the Performer EFI solenoid
assembly and the jet fitting on the nitrous spray nozzle is
24 inches. This should also be considered when mounting
the solenoid assembly.
Solenoid Tee
2.7
Nitrous Spray Nozzle Installation
The 70406 2003-Later Mercury Marauder Nitrous System requires 2 nitrous nozzles to be installed in the intake boot in 2
separate locations. Follow the steps below for proper nozzle mounting.
Nozzle 1 Installation
1. Determine nozzle mounting location on the same side of the
air filter housing as the MAF sensor as shown to the right.
2. Remove the air filter housing.
3. Wearing safety glasses, drill a 7/16" hole in air filter housing
where nozzle placement has been determined.
4. Install nozzle mounting nut and collar into air filter housing.
5. Using Teflon Paste, install the straight outlet nitrous nozzle
into the mounting nut.
6. Re-Install air filter housing.
7. Install the 32 nitrous jet into the nozzle jet fitting.
8. Install 3AN line from solenoid outlet fitting to spray nozzle jet
fitting and tighten securely.
©2002 Edelbrock Corporation
Rev. 10/02
Page 11 of 21
Installation for
straight outlet
Nitrous nozzle
Brochure No. 63-0144
Catalog #70406
Nozzle 2 Installation (Continuation)
1. Determine nozzle mounting location in the intake boot
just before the throttle body.
2. Remove the intake boot.
3. Wearing safety glasses, drill a 7/16” hole in the intake
boot where nozzle placement has been determined.
4. Install the nozzle mounting nut and collar into the intake
boot.
5. Using Teflon Paste, install the 90º outlet nitrous nozzle
into the intake boot being sure that the exit is facing into
the throttle body.
6. Install the intake boot.
7. Install the remaining 30 nitrous jet into the nozzle fitting.
8. Install the 3AN line from solenoid outlet fitting to spray
nozzle jet fitting and tighten securely.
2.8
1.
2.
3.
4.
90-degree
Nitrous
Nozzle Outlet
Fuel Pressure Safety Switch Installation
Locate fuel rail test port fitting.
Make sure the vehicle’s engine is shut off and cool and the key is not in the ignition. Release the pressure in the fuel
system by pressing down on the valve in the center of the test port fitting. This will allow the fuel pressure to drop due
to the fuel being bled out through the test port.
After relieving all pressure, remove the test port fitting core and install the 1/16”NPT male x 1/8”NPT female brass fitting
in its place using Teflon Paste.
Using Teflon Paste, install the Fuel Pressure Safety Switch into the 1/8”NPT female end of the brass fitting.
When completed with your Fuel Pressure Safety Switch installation, check the Fuel Pressure Safety Switch fittings for any
leaks by turning the key in the igntion to the “on” position but not starting the car. When the key is in the “on” position,
you should hear the fuel pump prime the system which in turn pressurizes the fuel system. Carefully inspect all of the
components that you have installed on the test port for leaks. If leaks are present, tighten the fitting but be careful not to
over tighten and strip the threads.
Pressure
Switch
©2002 Edelbrock Corporation
Rev. 10/02
Page 12 of 21
Brochure No. 63-0144
Catalog #70406
3.0
Electrical System Installation
3.1
Nitrous Electrical Components Bill of Materials (BOM)
Item #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3.2
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 13 of 21
Brochure No. 63-0144
Catalog #70406
Solenoid
Battery
Ground
12
13
Solenoid
Red
16
10
14
(2)
Page 14 of 21
White
11
Red
4
3
2
1
(2)
(2)
Microswitch
ON
ACC
Ground
15
SUPPLY
+12v
8
13
Black
Arming
Switch
7
Brochure No. 63-0144
Catalog #70406
13
-
GROUND
(2)
Switched +12V
WARNING!
DO NOT CONNECT
TO THIS TERMINAL
11
Socket
13
Relay
Ground
BLUE
6
5
Fuel Pressure
Safety Switch
9
Socket
Fuse
Nitrous Electrical System Wiring Diagram
©2002 Edelbrock Corporation
Rev. 9/02
3.3
3.4
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 Color
Red
3.5
Red
System
Main System Bat.
Voltage
Arming Switch
Blue
White
Black
Black
Black
Black
Black
Solenoid Power
Relay Power
Arming Switch Grnd
Relay Grnd
Microswitch Grnd
Solenoid #1 Grnd
Solenoid #2 Grnd
Black
Fuel Pressure
Safety Switch Grnd
Origin
Relay Harness
Destination
Bat. Volt. Signal
Terminal Used
Ring
Arming Switch
Switched 12V
Relay Harness
Relay Harness
Arming Switch
Relay Harness
Microswitch
Solenoid #1
Solenoid #2
Safety Switch
Fuel Pressure
Safety Switch
Underdash
Intercept
Solenoids #1 & #2
Arming Switch
Chassis Grnd
Microswitch
Chassis Grnd
Chassis Grnd
Fuel Pressure
Spade/Wire
Spade
Spade
Spade/Ring
Spade
Spade/Ring
Ring
Ring
Chassis Grnd
Ring/Ring
Nitrous Relay and Fuse Holder Installation
The wire harness attached to the relay and fuse holder includes 8 feet of color-coded wires to make the electrical system
installation for your Edelbrock Nitrous System as easy as possible. We recommend that you do not cut any lengths of wires
from the wire harness or complete the wiring of the nitrous system until all of the mechanical components are securely
mounted in their permanent locations.
Once all of the solenoids and switches are placed, then route the un-cut wires from the harness to each location allowing
enough wire length on each circuit to not interfere with operating linkages, heat sources, brackets, etc. Pay particular attention
to sharp edges along the route of your wire harness as they can chafe the wire and cause your system to fail.
After you have accounted for the routing of your wires, follow the Wire Harness Schematic on page 14 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 easy. 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 EFI system is 30 amps, and the fuse is 15 amps.
©2002 Edelbrock Corporation
Rev. 10/02
Page 15 of 21
Brochure No. 63-0144
Catalog #70406
3.6
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 1/2" 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.
3.7
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.
2.
3.
4.
Do not allow wiring from the microswitch to come in contact with heat sources on the intake manifold such as EGR risers
or passageways.
Do not run wires to the microswitch that can create interference with the operation of the throttle linkage.
The microswitch must be located in such a way as to be clear of the normal operation of the throttle linkage.
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 16 of 21
Brochure No. 63-0144
Catalog #70406
3.7
Microswitch Installation and Wiring (Continued)
The bolts used to attach the microswitch have extra length to allow for spacing the microswitch away from the bracket if
necessary. 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 the microswitch assembly mounted on our Mercury
Marauder. We utilized an existing hole on the intake
manifold located by the throttle body. It is an example of
one of many ways in which to mount a microswitch on
your manifold. 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.
Please look for potential microswitch mounting locations and adapt your microswitch bracket according to the needs of your particular
application.
The microswitch bracket is drilled to allow many different switch mounting positions. This flexibility allows the microswitch to be
positioned in such a manner that it will engage the throttle 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 so the actuation arm is triggered
by throttle linkage making sure all wiring and the bracket do not interfere with the smooth and safe operation of the throttle linkage.
Adjust microswitch to ensure the actuation arm "clicks" at the same point your throttle linkage reaches wide open throttle against the
throttle stop. At no time should the microswitch be enabled before wide open throttle.
3.8
Final Electrical installation Recommendations
At this time, it is advised that you double-check the following areas:
1.
2.
3.
Double-check all wires so that they do not come in contact with any heat sources such as exhaust manifolds, or EGR crossovers.
Double-check the wires that lead from the microswitch to ensure they do not interfere with the operation of the throttle linkage.
Make sure the relay and the fuse are serviceable and mounted securely.
You are ready to hook up your battery and prepare your vehicle to run.
©2002 Edelbrock Corporation
Rev. 10/02
Page 17 of 21
Brochure No. 63-0144
Catalog #70406
4.0
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 5, make sure that the nitrous bottle is closed and main nitrous supply line
is empty of any nitrous.
4.1
4.2
Fuel System Check
1.
Hook up all battery leads.
2.
Double-check all wires and leads for signs of heat and proper connections.
3.
Turn the ignition key to the engine "on" position without starting the engine.
4.
Inspect fuel rail where Fuel Safety Switch has been installed for any leaks.
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” section on next page.
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.
©2002 Edelbrock Corporation
Rev. 10/02
Page 18 of 21
Brochure No. 63-0144
Catalog #70406
5.0
Troubleshooting and Routine Maintenance
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… Change in engine speed when nitrous bottle valve is opened.
1.
2.
Malfunctioning nitrous solenoid.
a. Refer to the section entitled 6.0 Solenoid Inspection and Maintenance.
b. Repair/replace solenoid.
Contamination in nitrous solenoid.
a. Refer to the section entitled 6.0 Solenoid Inspection and Maintenance.
b. Clean/replace solenoid.
Symptom #2… Engine runs excessively rich when system is activated.
1.
2.
3.
4.
Nitrous bottle valve not fully opened.
a. Check bottle valve.
b. Open valve fully.
Nitrous bottle mounted improperly.
a. Mount bottle properly. See section entitled 2.1 Nitrous Bottle Mounting.
Plugged nitrous filter.
a. Clean and/or replace nitrous filter.
b. See nitrous solenoid symptom #1.
Low bottle pressure.
a. Weigh bottle.
b. Bottle should be 10 lbs. above empty bottle weight listed on bottle label.
c. Check bottle temperature.
d. Maintain 80 to 85 degrees of bottle surface temperature.
Symptom #3… No change in performance when system is activated.
1.
System wired incorrectly.
a. Compare wiring to schematic. See section entitled 3.3 Electrical System Wiring Diagram.
b. Wire per instructions.
2.
Loose ground wires.
a. Connect test light to battery “+” (positive) terminal. Check for continuity at grounds.
b. 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.
b. Repair wiring as necessary.
4.
Malfunctioning arming switch.
a. With ignition “on”, turn arming switch “on.” Connect test light to battery “–” (negative) terminal. Check for power at terminal
#1 wire on arming switch.
b. If power is present, replace arming switch.
5.
Malfunctioning microswitch.
a. Turn arming toggle “off”. Open (lever is not being activated) throttle microswitch, check for continuity between microswitch
wiring terminals.
b. If continuity is present, replace microswitch.
©2002 Edelbrock Corporation
Rev. 10/02
Page 19 of 21
Brochure No. 63-0144
Catalog #70406
6.
Inadequate nitrous supply.
a. Weigh bottle.
1. Bottle should be 10 lbs. above empty bottle weight listed on bottle label when full.
b. Check bottle pressure.
1. Maintain 900-950 psi for optimum system performance.
c. Check bottle temperature.
1. Maintain 80 to 85 degrees of bottle surface temperature.
d. Check bottle valve.
1. Open valve fully.
e. Check bottle orientation. See section entitled 2.3 Nitrous Bottle Orientation.
1. Mount bottle properly.
7.
Loose nitrous solenoid wiring.
a. Inspect solenoid wiring. See section entitled 3.4 Nitrous Electrical Installation Procedures.
b. Repair wiring as necessary.
8.
Malfunctioning nitrous solenoid.
a. Inspect solenoid wiring. See section entitled 3.4 Nitrous Electrical Installation Procedures.
1. Repair wiring as necessary.
b. Inspect solenoid. See symptom # 2.
1. Rebuild/replace solenoid.
Symptom #4… Engine detonates mildly when system is activated.
1.
2.
3.
Inadequate octane fuel.
a. Verify what gasoline you use.
1. Use higher-octane fuel.
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.
1. Install a performance spark plug.
2. Reduce spark plug heat range.
Too much nitrous flow.
a. Verify the size of the nitrous jet.
1. Install the proper nitrous jet.
b. Check bottle temperature and pressure.
1. Ensure before every nitrous usage that you only use nitrous when the temperature and pressure of your bottle are
correct.
Symptom #5… Vehicle surges under acceleration when system is activated.
1.
2.
Inadequate nitrous supply.
a. Weigh bottle.
1. Bottle should be 10 lbs. above empty bottle weight listed on bottle label when full.
b. Check bottle temperature.
1. Maintain 80 to 85 degrees of bottle surface temperature.
c. Check bottle valve.
1. Open valve fully
d. Check bottle orientation. See section entitled 2.3 Nitrous Bottle Orientation.
Check bottle mounting. Be sure bottle is mounted correctly. See section entitled 2.1 Nitrous Bottle Mounting.
©2002 Edelbrock Corporation
Rev. 10/02
Page 20 of 21
Brochure No. 63-0144
Catalog #70406
6.0
Solenoid Inspection and Maintenance.
1.
Close valve on nitrous bottle.
2.
Make sure all nitrous supply lines are free of pressure before removal of any system solenoid.
a.
Empty main nitrous supply line at the nitrous bottle. Take care to not breathe or expose your skin to nitrous.
b.
Do not open pressurized fuel lines over a hot engine.
3.
Remove nitrous solenoid from the engine and securely clamp it into a vise, taking great care not to damage the solenoid.
4.
Remove the solenoid cover, retaining nut from top of the nitrous solenoid.
5.
Remove coil and housing from nitrous solenoid base.
6.
Unscrew stem from nitrous 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 solenoid stem; damage to the stem will result.
7.
Carefully 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.
A seal that has been contaminated or over-pressurized will bulge from exposure to chemicals other than 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. Use paint thinner or electrical
contact cleaner. Remove any contaminants that may be present. 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 solenoid by reversing disassembly procedure.
©2002 Edelbrock Corporation
Rev. 10/02
Page 21 of 21
Brochure No. 63-0144
Catalog #70406
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