Edelbrock PRO-FLO XT 3527 Bedienungsanleitung

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

TABLE OF CONTENTS

Part #3527 and #3528

Introduction.................................................................................................................................................1

Components................................................................................................................................................2

Preliminaries...............................................................................................................................................3

Fuel System................................................................................................................................................6

Induction System ......................................................................................................................................10

Sensors ....................................................................................................................................................13

O2 Sensor Installation ...............................................................................................................................15

Main System Harness ...............................................................................................................................16

Ignition System .........................................................................................................................................25

Other Applications.................................................................................................................................... 26

Software Installation .................................................................................................................................28

Calibration Selection .................................................................................................................................29

System Start-Up........................................................................................................................................30

Electronic Engine Management .................................................................................................................33

Pro-Flo Quick Tuning Guide.......................................................................................................................34

Calibration Module Flowchart....................................................................................................................36

Parts and Part Numbers ............................................................................................................................37

Service & Warranty ...................................................................................................................................39

INTRODUCTION

Thank you for selecting the Edelbrock Pro-Flo XT Fuel Injection System. This Multi-Point Fuel Injection System has been designed for 350 c.i.d.

small-block Chevrolet engines, and is designed to provide excellent performance, fuel economy, and maintenance-free operation. Installation of

the Edelbrock Pro-Flo XT Fuel Injection System involves modifications to the fuel system, ignition system, induction system, and possibly the

valve train. Although there are steps that must take place before others, the modifications do not necessarily have to be performed in a particular

order. Each modification is described in a separate section in this manual. Please study these instructions carefully before beginning installation

of any part of the Pro-Flo XT system.

If you have any questions, do not hesitate to call our

EFI Technical Hotline at (800) 416-8628, 7am-5pm PST, Monday-Friday

E-mail: [email protected]

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

PRIMARY KIT COMPONENTS

❑Electronic Control Unit/System ECU ❑Fuel filter

❑Calibration Module ❑Fuel rail assembly

❑Distributor conversion kit ❑Fuel pressure regulator

❑Fuel injectors ❑High pressure fuel pump

❑ECU power relay/Fuel pump relay ❑Intake manifold

❑Manifold Absolute Pressure (MAP) Sensor ❑Four barrel air valve

❑Manifold Air Temperature (MAT) Sensor ❑Idle Air Control (IAC) solenoid, integrated with air valve

❑Coolant Temperature Sensor (CTS) ❑Main system harness

❑Throttle Position Sensor (TPS), integrated with air valve ❑Fuel pump harness

❑Oxygen (O2) sensor ❑Installation package

❑USB/Serial Converter ❑Ignition Harness

❑Software CD ❑MSD Blaster Coil

❑Mallory Distributor

Many Pro-Flo XT components, including the Manifold Absolute Pressure sensor, fuel pressure regulator, Coolant Temperature sensor, and the fuel

filter are standard OEM pieces. In the event that one of these parts needs to be replaced, you are likely to find a replacement at your local parts

supplier, in addition to your local Edelbrock dealer or directly from Edelbrock. For a list of part numbers, refer to the PART NUMBERS section at

the back of this manual.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

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

❑Gasket scraper or putty knife

❑Timing light

❑Vacuum gauge

❑Rags

❑Water bucket

❑Drill and bits

❑Hole saw (1 1/4-inch or 1 3/4-inch)

❑Tubing wrenches

❑Tubing cutter

PRELIMINARY CHECKLIST

1. CAREFULLY STUDY AND UNDERSTAND ALL INSTRUCTIONS, BEFORE BEGINNING THIS INSTALLATION.

NOTE: This installation can be accomplished using common tools and procedures. However, you should have a basic

knowledge of automotive repair and modification and be familiar with and comfortable working on your vehicle. If you do

not feel comfortable working on your vehicle, it is recommended to have the installation completed by a professional

mechanic.

2. Examine the Pro-Flo XT system for possible shipping damage. If damaged, contact your dealer immediately.

3. The 3527 & 3528 kits are designed for use with a standard Small Block Chevy V8 firing order.

4. Check all threaded manifold holes.

5. Check all internal manifold passages with a light and wire, making sure they are clean and unobstructed.

6. Check automatic transmission shift points before removal of your stock manifold and adjust linkage after Edelbrock

manifold installation for same shift points (if needed).

NOTE::We recommend that you refer to this checklist again after installation to be sure that you have completed all steps.

HARDWARE AND PARTS RECOMMENDED

Use the following checklist for items needed.

❑Intake gasket; #3527 kits use Edelbrock gaskets #7201; #3528

kits use gaskets #7235

❑Pipe plugs, if needed

❑5/16-inch steel tubing (approximate equal length to fuel pickup

line in tank)

❑Edelbrock Gasgacinch #9300

❑Loctite 598 OEM High Temperature Silicone Gasket (O2Sensor

Compatible)

❑Radiator coolant

❑Wiring diagram for your vehicle

❑Teflon tape or liquid Teflon thread sealer

❑Manifold bolt kit; #3527use #8504; #3528 uses #8516

❑195° Thermostat

❑Resistor type spark plugs (Use correct heat range for your

particular application

❑Set of low-resistance spark plug wires with high EMI suppression

(DO NOT use solid core spark plug wires)

❑Dynojet wideband commander (Optional, not included)

❑DB9 Serial cable (Optional, not included)

❑Late model low profile water neck such as Trans-Dapt #9229 or

GM #12342034 (chrome)

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

MANIFOLD & CARBURETOR HEIGHT VS.

PRO-FLO XT HEIGHT

1. Lay a straightedge (such as a yardstick) across the top of the air

cleaner from front to back.

2. Measure from block and manifold end seal surfaces to

straightedge.

3. Record these measurements (height A and height B).

4. Add height A and height B and divide by two to get the average

height.

5. The Pro-Flo XT manifold is 9” tall at the center and 9.125” at the

throttle body flange.

6. Compare this to your original measurements. If the Pro-Flo XT unit

is taller, subtract this amount from the hood clearance figure to

determine new hood clearance.

CAUTION: You must maintain at least 1/2-inch clearance between the

hood and manifold because of engine torque. If you have insufficient

clearance, a hood scoop may solve the problem.

EMISSION CONTROLS

The Edelbrock Pro-Flo XT system will not accept stock emissions

control systems. Check local laws for requirements before installing

the Pro-Flo system. Not legal on pollution-controlled motor vehicles.

DETERMINING HOOD CLEARANCE

NOTE: Check hood clearance before removing stock manifold.

1. Use modeling clay or putty to make five small cones, two or three

inches high.

2. Position cones on air cleaner at front, rear, each side, and on

center stud.

3. Close hood to locked position and re-open.

4. The height of the cones indicate the amount of clearance

between the hood and the air cleaner. Record these

measurements.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

FUEL REQUIREMENTS

Because the Pro-Flo XT system uses an Oxygen sensor, you must use unleaded fuel only. Leaded fuels will damage the O2sensor. If you do use

leaded fuel in your vehicle, do not install the O2sensor and do not operate the vehicle in the closed loop fuel mode.

AUTOMATIC TRANSMISSION CHECK

For best performance, economy, and emissions, the shift point must be checked before and after the manifold change.

NOTE: This check should be performed ONLY at a sanctioned drag strip or test track.

With the shifter in Drive, accelerate to wide open throttle from a standing start. Hold in this position, noting speedometer MPH when the

transmission makes the first 1-2 shift. After the Pro-Flo XT system has been installed, make the same test, again noting MPH of this first shift.

The transmissions in certain vehicles require precise adjustments. We recommend that you consult a reputable transmission shop for final

adjustments once the Pro-Flo system has been installed. Incorrect shift points can result in transmission damage.

ENGINE CLEANING

Edelbrock recommends that the Pro-Flo XT system be installed on a clean engine in order to prevent dirt from falling into the engine lifter valley

or intake ports.

1. Cover ignition. Use engine degreaser and a brush to thoroughly clean the manifold and the area between the manifold and valve covers.

2. Rinse with water and blow dry.

EXHAUST MANIFOLD HEAT RISER VALVE

If your vehicle is equipped with an exhaust manifold heat riser valve (typically located on the passenger side of the vehicle below the exhaust

manifold), remove the valve for proper operation. If applicable, any air injection tubes must be removed and holes in the exhaust manifold

plugged for proper operation.

HEADERS

For best performance, headers are recommended. For this application, header primary tube diameter should be 1-3/4 inch, approximately 31

inches long and terminating into a 3 inch collector. The remainder of the exhaust system should consist of dual exhaust and tail pipes, at least 2-

1/4 inches in diameter with low back pressure mufflers.

COOLING SYSTEM

The minimum requirements for the thermostat are 180° but the ideal thermostat is 195°. When the vehicle is at 175 or below, system will stay

in cold start mode and not perform properly.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

FUEL SYSTEM

Because your Edelbrock Pro-Flo XT system controls fuel delivery very differently than a carburetor, some conversions to your fuel system are

necessary. Pro-Flo XT electronic fuel injection requires high and constant fuel volume and fuel pressure. For this reason, a good primary fuel

line is critical. The Pro-Flo XT system includes a 3/8-inch high pressure fuel line which must be used as the primary fuel line. The fuel that

bypasses the injectors must be returned to the fuel tank via a return fuel line. If your vehicle is already equipped with a fuel pump bypass line,

this line can be used as the return fuel line. If not, the original primary line may be used as the return line. If desired, a 15 foot length of 3/8” ID

Pro Classic hose is supplied for use as the return line.

Many late-model cars are equipped with an additional fuel line which runs to a charcoal canister mounted on the driver side of the vehicle. This

line MUST be re-installed after the fuel system conversion and MUST NOT be used as the return fuel line.

Tank Side

Engine Side

FUEL PUMP AND FILTER

The Pro-Flo XT system uses a single Edelbrock high-pressure electric fuel pump which is

capable of pumping 50 psi. The pump relay will shut down the pump if it does not receive an

engine-run signal from the ECU, as in the case of a stall. This safety precaution is necessary

when using a high-pressure fuel line. The provided fuel filter should be mounted between the

engine compartment and the fuel pump to allow fuel to be pushed through the filter rather

than drawn through. Electrical connectors should face the front of vehicle. Make sure the

fuel pump is mounted at or below the bottom of your fuel tank. If the pump is mounted above

this point, fuel pump failure will occur.

FUEL PRESSURE REGULATOR AND FUEL SUPPLY LINE

Fuel pressure is as important as fuel volume, particularly in fuel injection. The Pro-Flo XT fuel pressure regulator maintains a constant pressure at

the injectors with a spring loaded by-pass to the return fuel line. Manifold Absolute Pressure references the regulator diaphragm to maintain

constant pressure across all 8 injectors, regardless of fluctuating manifold pressure (vacuum) level. The fuel that is not injected is returned to the

fuel tank via the return fuel line.

RETURN FUEL LINE

Due to the high fuel pressure used by the Pro-Flo system, the supplied 3/8-inch Pro Classic high pressure fuel line MUST be used as the

primary fuel line, and a bypass fuel return line must be installed. There are three options for installing a bypass return line.

1. Use the 3/8” Pro Classic rubber fuel line provided with the system as the fuel return line.

2. Use the vehicle’s existing primary line as the fuel return line with modification to the pick up as described below.

3. Use the vehicle’s existing return line (if so equipped) as the fuel return line. This option applies only to vehicles previously equipped with fuel

injection. If the vehicle is not already equipped with a return line, some fuel tank modifications are required for routing the return line

through the sending unit plate back into the tank. The first two methods listed below require some welding and should be done by a

professional radiator or fuel system repair shop.

Return Side Supply Side

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) into the hole and weld it to the sending unit plate. The hard line should

extend through the hole 1 to 2 inches on each side of the plate. Connect a length (at least 4 inches) of 5/16-inch rubber return line hose to the

hard line that will extend into the tank. Connect the rubber line to the fuel pickup line using tie wraps.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

BULKHEAD FITTING METHOD

Drill a 9/16-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

#6 AN bulkhead fitting (available at most radiator shops) into the hole, the narrow end of the fitting on the inside of the plate. Apply a rubber

washer or RTV sealant and fasten the fitting to the plate with the nut. Connect a length (at least 4 inches) of flexible return line (rubber or

braided hose) to the fitting end. Connect the return line to the fuel pickup line using tie wraps.

NOTE: THIS METHOD REQUIRES NO WELDING OF THE FUEL SYSTEM.

NOTE: Whichever method you use to install the return fuel line, be

careful to keep the end of the line away from the fuel pickup, as

shown. Otherwise, aerated return fuel can be drawn into the pickup.

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 inches on the outside of the plate. On the inside of the plate, the hard line should follow the contours of the fuel pickup

line. Bend the end of the return line away from the sock on the end of the fuel pickup line. Solder or weld the return hard line to the fuel pickup

line.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

BULKHEAD FITTING METHOD

HARD RETURN LINE METHOD

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

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. Remove the fuel tank.

NOTE: While the fuel tank is removed from the car, it is recommended that it be professionally

cleaned in order to remove any rust or dirt that may have accumulated inside and which could

damage the injectors.

4. Remove the sending unit from the fuel tank. Refer to the RETURN FUEL LINE methods above for

installing the bypass fuel return line.

5. Install the provided 3/8-inch primary fuel line directly above the original line, which may

now serve as a return line. Use large radius bends. Avoid the exhaust pipe and any

sharp edges.

NOTE: The 3/8” Pro Classic high pressure fuel line supplied with the Pro-Flo system

must be used as the primary fuel line. See the following section for assembly

instructions.

6. If you do not use the original fuel as the return line, route the return line directly

alongside the provided 3/8-inch primary fuel line.

7. Mount the fuel pump between the tank and the fuel filter as low and as close to the

fuel tank as possible. The pump is directional. Electrical connectors should face the

front of vehicle. The fuel pump needs to be at or below the bottom of the fuel tank.

8. Mount the fuel filter between the fuel pump and the engine.

9. Re-install the modified sending unit plate to the clean fuel tank.

10. Reinstall the fuel tank.

11. Attach the primary line and return line to the sending unit plate on the tank.

12. Re-attach all other fuel lines at the tank (vapor purge lines, etc., if so equipped).

13. Secure the primary and return fuel lines with the provided tie-wraps, or with Adel clamps if

available.

14. Re-attach all fuel lines to the induction system once it has been installed.

15. Use the 10-foot wiring harness to connect the fuel pump to the Main System Harness. Route the

harness away from the exhaust pipe and any sharp edges. This harness may be cut to length.

Replacement terminals are provided with the Pro-Flo XT system. Cover the connection to the

positive terminal with the sleeve and tie wrap provided. Refer to the MAIN SYSTEM HARNESS section of this manual for details.

16. Before starting the engine, turn the ignition key to the ON position 4 or 5 times to prime the electric fuel pump, fuel lines, and fuel rails. You

should hear the pump run for approximately 2 seconds each time. Check the entire fuel system for leaks. Refer to the SYSTEM START-UP

section of this manual for details.

Pro-Flo EFI Installation Instructions

Brochure No. 63-3527

Catalog #3527, #3528

Rev. 8/08 - AJ/mc

INDUCTION SYSTEM

The Edelbrock Pro-Flo XT system delivers fuel and air to the engine via the induction system consisting primarily of a manifold, 90mm air valve,

fuel rails, and fuel injectors. The induction system is fully assembled, tested, seal checked, and flowed at the factory and is as easy to install as a

manifold. DO NOT DISASSEMBLE any of these components during installation.

INTAKE MANIFOLD

The new Edelbrock Pro-Flo XT manifold has been designed specifically

for electronic fuel injection applications.

90mm THROTTLE BODY

The Pro-Flo XT system uses a throttle body with 90mm air valve. The

air valve can flow up to 1000 cfm at 1.5" of mercury when wide open.

FUEL INJECTORS

The Pro-Flo XT #3527 & #3528

systems use high impedance pintle-

type fuel injectors. The injectors

are capable of flowing 29 lbs./hr. at

50 psi. The injectors mount directly

onto the manifold, one at each port,

for fuel delivery that is precisely

controlled and instantaneously

injected.

FUEL RAILS

The extruded aluminum rail assembly routes the high pressure fuel to

the injectors. Aluminum rails have an advantage over soft rails both in

terms of style and safety.

ASSEMBLING PRO-CLASSIC HOSE

Step One: Cut hose to length,

as straight and square as

possible, with razor blade-type

hose cutter or shears.

Step Two: Unscrew socket

from hose end. Push hose into

socket, turning counter-

clockwise, until hose is seated

against step in socket. Make

sure rubber part of hose does not

protrude into socket threads.

Step Three: Apply Russell

assembly lube to threads on

nipple assembly and in socket.

Insert nipple into socket/hose

and start threads by hand

(clockwise).

Step Four: Hold socket/hose in

vise. Turn nipple with wrench

until there is less than 1/16"

between nipple hex and socket.

Repeat Steps 1-3 for other end of

hose. Then, flush hose assembly

with solvent or soapy water and

blow clean with compressed air or

let air dry.

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