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Edelbrock 3551 manual

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Table of contents for the manual

  • Page 1

    1 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 INTRODUCTION Thank you for selecting the Edelbrock Pro-Flo Fuel Injection System. This Multi-Point Fuel Injection System has been designed for 454 c.i.d. big- block Chevrolet engines, and is designed to provide excellent performance, fuel economy, a[...]

  • Page 2

    2 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 COMPONENTS ❑ Electronic Control Unit/System ECU ❑ Fuel filter ❑ Calibration Module ❑ Fuel rail assembly ❑ Distributor conversion kit ❑ Fuel pressure regulator ❑ Ignition amplifier ❑ Fuel injectors ❑ ECU power relay/Fuel pump relay [...]

  • Page 3

    3 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 TOOLS AND EQUIPMENT Use the following checklist for items needed. ❑ Box and open end wrenches ❑ Socket set ❑ Distributor wrench ❑ Pliers (channel locks and hose clamp) ❑ Screwdrivers (regular and Phillips) ❑ Torque wrench ❑ Hammer ❑ [...]

  • Page 4

    4 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 MANIFOLD & CARBURETOR HEIGHT VS. PRO-FLO HEIGHT 1. Remove air cleaner. 2. Lay a straightedge (such as a yardstick) across the top of the carburetor from front to back. 3. Measure from block and manifold end seal surfaces to straightedge. 4. Reco[...]

  • Page 5

    5 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 FUEL REQUIREMENTS Because the Pro-Flo system uses an Oxygen sensor, you must use unleaded fuel only. Leaded fuels will damage the O 2 sensor. If you do use leaded fuel in your vehicle, do not install the O 2 sensor and do not operate the vehicle in [...]

  • Page 6

    6 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 FUEL SYSTEM Because your Edelbrock Pro-Flo system controls fuel delivery very differently than a carburetor, some conversions to your fuel system are necessary. Pro-Flo electronic fuel injection requires high and constant fuel volume and fuel pressu[...]

  • Page 7

    7 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 RUBBER RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line enters the tank. This will be the hole for your return line. Insert a short length of 5/16-inch hard line (available at most radiator shops) i[...]

  • Page 8

    HARD RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line, enters the tank. This will be the hole for your return line. Insert a length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The hard line should extend through the hole 1 to 2 inch[...]

  • Page 9

    9 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 NOTE: ALL WELDING AND SOLDERING OF THE FUEL SYSTEM MUST BE PERFORMED BY A PROFESSIONAL RADIATOR AND/OR FUEL SYSTEM REPAIR SHOP. FUEL SYSTEM INSTALLATION 1. Drain the fuel tank. 2. Remove all fuel lines from the tank and from the carburetor. 3. Remov[...]

  • Page 10

    10 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 INDUCTION SYSTEM The Edelbrock Pro-Flo system delivers fuel and air to the engine via the induction system consisting primarily of a manifold, 4-barrel air valve, fuel rails, and fuel injectors. The induction system is fully assembled, tested, seal[...]

  • Page 11

    11 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 PRE-INSTALLATION Before installing the induction system, take the following steps to ensure successful installation and performance 1. Check all components thoroughly for damage. 2. Make sure all throttle linkages open entirely and close freely. 3.[...]

  • Page 12

    12 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 GASKET SURFACE PREPARATION CAUTION: Replace all gaskets as recommended. Do not use race-type non-embossed gaskets for street applications. Due to material deterioration under street driving conditions, internal vacuum and oil leaks may occur.We rec[...]

  • Page 13

    13 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 SENSORS The Edelbrock Pro-Flo system interprets overall engine operating conditions and fuel/spark requirements based on readings from sensors that measure specific engine conditions. The Pro-Flo system includes five sensors: 1) Manifold Absolute P[...]

  • Page 14

    14 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 COOLANT TEMPERATURE SENSOR The Coolant Temperature Sensor is a thermistor device like the Manifold Air Temperature sensor. Resistance varies as coolant temperature rises and lowers. The Coolant Temperature Sensor is located at the front of the mani[...]

  • Page 15

    15 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 The exhaust gas oxygen content is determined by the oxygen sensor. The sensor signals the ECU, which compensates when the air/fuel mixture is either rich or lean. NOTE: It is recommended that the O 2 sensor installation be performed by a profession[...]

  • Page 16

    16 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 MAIN SYSTEM HARNESS If the ECU is the brain of the Edelbrock Pro-Flo system, the Main System Harness is the central nervous system. Constructed with SAE grade wires and the most up-to-date Weatherpak connectors, the Main System Harness is a generic[...]

  • Page 17

    17 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 CONNECTORS The “J” coding is for illustration purpose only. The connector ends DO NOT have a “J” code stamped on them J1 ECU J2 Calibration module J3 Pump harness J8 Throttle Position Sensor J9 Manifold Absolute Pressure sensor J10 Coolant [...]

  • Page 18

    18 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 The Coolant Temperature sensor attaches to the harness with Connector J10. The Manifold Absolute Pressure sensor attaches to the harness with Connector J9. The Manifold Air Temperature sensor attaches to the harness with Connector J11. Only the fue[...]

  • Page 19

    19 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 A. This 5-inch IAC wiring harness is attached between the Idle Air Control, mounted on the air valve, and Connector J3 on the Main System Harness. B. This 3-foot ignition amplifier wiring harness is attached to the distributor cap with the connecto[...]

  • Page 20

    20 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 The diagram below illustrates how the ignition amplifier, distributor, ignition amplifier wiring harness, and Main System Harness are connected. A KEY ON wire (Pink with black stripe) is also included in the Pro-Flo system. This wire connects to th[...]

  • Page 21

    21 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 IGNITION SYSTEM A new distributor is not required with the Edelbrock Pro-Flo system. The system has been designed to allow you to convert your stock distributor, large cap or early small cap, mechanical or computer-controlled, into a Multi-Port Fue[...]

  • Page 22

    22 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 7. Remove all internal components from the distributor housing, including the vacuum advance diaphragm. 8. Install the electronic Hall effect sensor and sensor plate, using the fasteners provided. The sensor plate has been designed to fit into a sm[...]

  • Page 23

    23 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 12. When the drive gear is installed, the shutter wheel teeth must be deep enough into the Hall effect sensor to allow them to completely pass through the sensor at the proper depth, but not so deep as to make contact with the sensor. On small cap [...]

  • Page 24

    24 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 DISTRIBUTOR TESTING Before re-installing the distributor, test to ensure that the conversion has been performed correctly. 1. Install the ECU and wiring harness and make all connections except the distributor. 2. Disconnect electrical connections a[...]

  • Page 25

    25 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 ADDING AFTERMARKET IGNITION If you are wishing to use a MSD 6AL or MSD 6-Digital ignition with your Pro-Flo fuel injection, follow the wiring diagram below. NOTE: When installing the MSD box, keep the red battery lead, the main MSD box, and the pow[...]

  • Page 26

    26 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 OTHER APPLICATIONS The Pro-Flo system has been designed and calibrated specifically using the Chevrolet 454 c.i.d. Big-block with large-valve style cylinder heads (such as Edelbrock’s Performer RPM Street Cylinder Heads with 2.25-inch valves) and[...]

  • Page 27

    27 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 Testing The Sensors Before starting the engine, test all sensors. 1. Turn the key to the ON position with the Calibration Module connected. The display will read: NOTE: A vacuum reading of other than 0.0” Hg may be displayed depending upon barome[...]

  • Page 28

    28 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 Setting Base Spark Advance After the camshaft has been broken in, the base timing of the engine should be re-set. Use a timing light and the Pro-Flo Calibration Module to accurately set timing. 1. Start the engine 2. The Calibration Module screen w[...]

  • Page 29

    29 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 Idle Calibration Procedure • Prior to idle calibration, you need to have completed the "System Start-Up" procedure • Warm up engine to at least 175°F. Idle Control • Using the calibration module, Select MISC. MODIFIERS and, Set Idl[...]

  • Page 30

    30 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 Electronic Engine Management The Edelbrock Pro-Flo system uses the Speed-Density method of electronic engine management, in which fuel and spark requirements are based on engine speed (RPM) and engine load (manifold pressure and temperature). The E[...]

  • Page 31

    31 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 PRO-FLO QUICK TUNING GUIDE These are basic instructions to help in understanding the tuning of your Pro-Flo fuel injection system. For detailed technical information on tuning your Pro-Flo, see the Pro-Flo Owner’s Manual. This guide has been deve[...]

  • Page 32

    32 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05[...]

  • Page 33

    33 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 PART NUMBERS Edelbrock Pro-Flo Fuel Injection System .......................................................................................... Edelbrock #3500 Ignition Amplifier .....................................................................[...]

  • Page 34

    34 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 ( 1) Hall effect sensor ( 1) Ignition Amplifier ( 1) Manifold Absolute Pressure sensor ( 1) Manifold Air Temperature sensor ( 1) Coolant Temperature sensor ( 1) Throttle Position sensor ( 1) Oxygen (O 2 ) sensor ( 1) High pressure fuel pump ( 1) Fu[...]

  • Page 35

    35 Pro-Flo EFI Installation Instructions ©2005 Edelbrock Corporation Brochure No. 63-0115 Rev. 10/05 SERVICE In the event that your Edelbrock Pro-Flo System should need servicing, return the unit pre-paid to the Edelbrock Service and Repair facility at 2700 California Street, Torrance, CA 90503. Do not attempt to disassemble or service the compone[...]