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AVENGER EFI
4 BBL MPFI SYSTEMS
SINGLE PLANE 4BBL SMALL BLOCK CHEVY MULTI-PORT EFI SYSTEMS
550-811 (Early/Late Models)
550-816 (Vortec Heads)
SINGLE PLANE 4BBL BIG BLOCK CHEVY MULTI-PORT EFI SYSTEMS
550-831 (Std Deck, 1000 CFM Rect. Port)
550-836 (Std Deck, 1000 CFM Oval Port)
HARDWARE AND FUEL SYSTEM
INSTALLATION MANUAL – 199R10553
NOTE:
These instructions must be read and fully understood before beginning installation. If this manual is not fully understood,
installation should not be attempted. Failure to follow these instructions, including the pictures may result in subsequent
system failure.
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Related Manuals for Holley Avenger EFI series
Summary of Contents for Holley Avenger EFI series
- Page 1 AVENGER EFI 4 BBL MPFI SYSTEMS SINGLE PLANE 4BBL SMALL BLOCK CHEVY MULTI-PORT EFI SYSTEMS 550-811 (Early/Late Models) 550-816 (Vortec Heads) SINGLE PLANE 4BBL BIG BLOCK CHEVY MULTI-PORT EFI SYSTEMS 550-831 (Std Deck, 1000 CFM Rect. Port) 550-836 (Std Deck, 1000 CFM Oval Port) HARDWARE AND FUEL SYSTEM INSTALLATION MANUAL –...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 INTRODUCTION ..................................3 2.0 BEFORE YOU BEGIN ................................3 3.0 WARNINGS, NOTES, AND NOTICES ............................ 3 4.0 SKILL LEVEL REQUIRED ............................... 4 5.0 ADDITIONAL ITEMS REQUIRED FOR INSTALLATION ......................4 6.0 TOOLS REQUIRED FOR INSTALLATION ..........................4 7.0 AVENGER EFI SYSTEM OPTIONS ............................ -
Page 3: Introduction
1.0 INTRODUCTION Holley has written this manual for the installation of the AVENGER EFI manifold and fuel system. Wiring harness and ECU installation, sensor connections, startup, and tuning are contained on the disc supplied with AVENGER systems. Please read all the WARNINGS, NOTES, and TIPS, as they contain valuable information that can save you time and money. Should you need information or parts assistance, please contact our technical service department at 1-270-781-9741, Monday through Friday, 8 a.m. -
Page 4: Skill Level Required
Heat Shrink Mechanical fuel pump block off plate 0-50 psi fuel gauge or Holley 0-100 PSI pressure transducer (recommended) 6.0 TOOLS REQUIRED FOR INSTALLATION The following is a list of materials that are needed, depending on the application. -
Page 5: Removal Of Existing Fuel System
9.0 REMOVAL OF EXISTING FUEL SYSTEM Disconnect the ground side of the battery. Drain the cooling system. Remove the cooling system hoses and thermostat housing. Drain the fuel tank, then disconnect the fuel supply line or disconnect the fuel supply line and plug the hose. Disconnect all throttle linkages. - Page 6 Tighten down the manifold bolts in the proper sequence and torque as recommended in the engine manual. NOTE: Consult your engine manual for proper fastener torque, bolt tightening pattern and other manifold installation specifications. Remove the fuel rails. Install the fuel injectors. Lubricate the fuel injector top and bottom O-rings. Do not use synthetic, animal or vegetable oils.
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Page 7: Installing The Distributor
300kPa (43.5psi). The outlet of the regulator returns the excess fuel back to the fuel tank. The following section covers the installation of an in-line pump. Holley PN 12-920 is included with this kit. Holley includes both a pre and post filter with the AVENGER MPFI system. -
Page 8: Fuel Pressure Regulator
All of the fittings on the intake manifold are -6 AN fittings (except the internal threads of the fuel pressure regulator which have a “Saginaw” thread. There are barbed adapters included that can be installed on the inlet and return fittings that can be used to connect to high pressure rated rubber fuel hose. -
Page 9: Fuel Pump Installation
10.3 Fuel Pump Installation DANGER! NEVER GET UNDER A VEHICLE SUPPORTED ONLY BY A JACK. SERIOUS INJURY OR DEATH CAN RESULT FROM VEHICLES FALLING OFF OF JACKS. BEFORE WORKING UNDERNEATH A VEHICLE, SUPPORT SOLIDLY WITH JACK STANDS. Most in-line high-pressure fuel pumps have limited suction characteristics, so they need to be mounted as low as possible and should be mounted no higher than the bottom of the fuel tank. -
Page 10: Return Line Installation
RESULT IN A FIRE OR EXPLOSION HAZARD, WHICH COULD CAUSE SERIOUS INJURY OR DEATH. The fuel filter supplied by Holley meets or exceeds the above specifications. Most filters for carburetor systems do not. The fuel pump inlet filter (marked WIX 33033) must be plumbed between the fuel tank and the fuel pump. It should be mounted as close to the fuel tank as possible and should be mounted no higher than the top of the fuel tank. -
Page 11: Oxygen Sensor Installation
On vehicles equipped with an AIR pump, the oxygen sensor must be mounted before the AIR injection into the exhaust, or the AIR pump must be disconnected. Holley recommends that if the AIR is injected into both exhaust manifolds, mount the oxygen sensor into the pipe immediately after the exhaust manifold. -
Page 12: Ecu Mounting
The AVENGER ECU has a main battery power and ground connector on the right side of the ECU. The bottom position, Terminal “A” is the ground. The upper position, Terminal “B” is the positive terminal. Always use the fused power cable with the proper connectors supplied by Holley only. Figure 6... -
Page 13: Primary Harness Installation And Sensors Connection
13.0 PRIMARY HARNESS INSTALLATION AND SENSORS CONNECTION These sections review the Main Harness installation and all of the sensor connections that must be completed. The Main Harness is the primary harness that supports all the primary engine sensors, fuel and ignition. There are two main connectors for this harness that plug into the ECU. -
Page 14: Sensor Connections & Outputs
Connect to the TPS which is located on the throttle body. 13.3.2 Manifold Air Pressure Sensor (MAP) A 1 Bar MAP sensor is provided with all Holley EFI systems. Connect to the MAP sensor. Make sure that a vacuum line was connected to the MAP sensor in previous steps. -
Page 15: Fuel Pressure (Fuel)
13.3.7 Fuel Pressure (Fuel) A fuel pressure transducer connector is pre-installed in the main harness. The system is plug-and-play configured for a Holley 100 PSI pressure transducer (can be purchased under PN 554-102). If these are not connected to a pressure transducer, the Fuel and Oil Pressure will read “LEr”... -
Page 16: Ignition (Ign)
13.3.11 Ignition (IGN) – There is a 10 pin connector marked “IGN”. This is to connect to various ignition systems. This is not required for some applications. See section 16.0 below for proper ignition wiring. Figure 19 IGN (Shown with Tach Out Adapter Harness) 14.0 PRIMARY OUTPUTS 14.1 Idle Air Control (IAC) Connect to the idle air control motor which is installed in the throttle body. -
Page 17: Ignition/Engine Speed Input
The fuel pump also requires a ground wire. Run a wire from the negative side of the fuel pump (marked “-“ on the Holley pump in this kit). Connect it to a solid chassis/frame ground. -
Page 18: Wiring
CAUTION! NEVER, NEVER connect any of the EFI wires to the coil on any CD type ignition system. The ECU will be permanently damaged! NOTE: Using this input, the EFI will NOT control the ignition timing of the engine. The timing will be based on the distributor initial, mechanical, and vacuum advance, just like it did with a carburetor. - Page 19 Figure 26 below shows how to connect to a factory style ignition with a canister style coil. Figure 26 OPTION 2 – “Tach Out’ – If using an aftermarket Capacitive Discharge (CD) ignition system, you need to connect to the “Tachometer Output”...
- Page 20 OPTION 3 - “GM Small Cap HEI” Computer Controlled Distributor – An ignition adapter to connect to a computer controlled small cap HEI distributor is included with all Small and Big Block Chevy multi-port Avenger EFI kits. This adapter looks like: Figure 29 Connect this adapter to the main EFI harness to the connector marked “IGN”...
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Page 21: Additional Outputs
8 pins. 3 of these are used for the features mentioned above. A harness is available to plug into this connector under Holley PN 558-400 that provides a mating plug in connector and additional harness length. If you wish to not purchase this mating harness, but want to use these options, you can remove a single wire from the main harness Input/Output connector and solder an additional length of wire on for the features you wish to use. -
Page 22: Appendix 1.0
Fuel Pressure Input CAN Hi WB1 IP+ WB HTR + Holley Performance Products 1801 Russellville Road Bowling Green, KY 42101 Technical Service: 1-270-781-9741 For online help, please refer to the Technical Information section of our website: www.holley.com 199R10553 wf Revision Date: 11-30-16... - Page 24 199R10553 wf Revision Date: 11-30-16...
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