Time For A Change With The FAST EZ-EFI

[CPG Marketing]

FAST and Easy, The Time For EFI Conversion Has Arrived


Converting from carburetion to Electronic Fuel Injection (EFI) has been the source of terror for many that wanted to make the change. That’s because it involved some complex work that almost required a Masters Degree in the science of EFI. But thanks to FAST™ engineers those days are over because the EZ-EFI™ Self-Tuning Fuel Injection System is a true plug and play system. And once installed, the tuning is remarkably simple.

There are major innovations that make EZ-EFI™ a true plug and play system and it’s engineered with simplicity in mind. Take, for example, the ground-breaking throttle body injection unit that’s engineered to be a simple bolt-on carburetor replacement. It is cast aluminum and is a total carburetor replacement package for your existing 4150-type flange carburetor manifold. It has everything required for the conversion to EFI including sensors, injectors and fuel rails.

Another big advance is the system’s self tuning capability. In the past, you needed a laptop and considerable tuning experience to make the conversion. But with the EZ-EFI™ system you just answer some basic questions on the handheld Setup Wizard and the tuning is done. It’s a simple process and once the basic programming is complete, the system fine tunes itself as you drive.

The system is all inclusive and comes with everything you’ll need to install it in only hours. Along with the throttle body and Setup Wizard hand held display, EZ-EFI™ comes with the electronic control unit (ECU), wide-band 0₂ sensor, wiring harness, RPM module, optional fuel pump kit and other assorted components.

The EZ-EFI™ system works on any engine and easily bolts-on to any 4150-type flange carbureted manifold with up to 600 horsepower. In addition EZ-EFI™ works with the original carburetor throttle linkage and is ready to accept OEM sensors.

The system can be easily installed in an afternoon and to show how the process works, Brent Casteel of King, North Carolina was enlisted to do the installation. Brent is a well-known restoration specialist and when he agreed to do the installation, he suggested his son Evan could be a part of the process. His thinking was with his son helping, it would show that installation was simple enough for a thirteen year old.

It was agreed Evan’s involvement would help demonstrate the simplicity of the process. However, it was also agreed that Brent’s direction and coaching would also be a part of the process.

The installation took place in Brent’s garage, which is fully equipped to do the job. The mechanical portions of the installation were done by both Brent and Evan, but when it came time for the programming part, thirteen year old Evan took over.

Take a look at the following pictorial and video illustrations of the installation procedure and you’ll see that making the change from carburetor to EFI is no longer a thing to be feared. As a matter of fact, the process is straight forward and especially when it comes to the programming part, it really is easy enough for a thirteen year old to do it.

The EZ-EFI™ system is being installed on a 1964 Chevelle equipped with a 350 Small Block Chevrolet engine. A return fuel line is required on a fuel injected system. This 1964 Chevelle didn’t have a fuel return line so the very first step in the process was the addition of a return line.

Before the actual EZ-EFI™ kit installation begins, the battery power must be disconnected. It’s critical to neutralize the power to prevent any possibility of electric shock to the installer or damage to the system.

Next the wideband oxygen (O2) sensor is installed. If necessary, this step can be done at a local muffler shop but in this case the operation was achieved on site. First the appropriate size opening is made so the bung can be welded in place.

Here the O2 sensor bung is welded in place. This portion of the installation can be done at your local muffler shop if you don’t have the right equipment.

With the bung welded in place the O2 sensor is installed.

Next the fuel external fuel pump assembly is put in place. This view is looking up under the car and the assembly is mounted and secured close to the fuel tank.

Now the existing fuel system is disengaged beginning with the removal of the stock fuel pump. It’s important to be prepared to contain any fuel that exits system.

Once the stock fuel pump is removed, it’s necessary to cover the fuel pump opening. As is shown in this photo, a custom plate was made to maintain the custom look of the car.

With the fuel line disengaged, all the wiring and carburetor attachment to the engine removed, the carburetor is removed from the engine.

The linkage from the carburetor will be used on the new throttle body unit, so it is removed from the carburetor and attached to the EZ-EFI™ throttle body.

Next the new square flange gasket is put in place.

Now the EZ-EFI™ throttle body is bolted in place.

With the throttle body in place, the appropriate wiring harness connections are made. This process is very clear because every harness connection is labeled.

Now the fuel regulator assembly is mounted. In this case it’s mounted to the firewall with the use of a custom bracket that was created to maintain the show quality of the engine compartment.

With all of the fuel supply components in place, fuel lines are now made for the system. Fuel line material is included in the kit and each line is cut to the required length. Then the ends are heated with a heat gun.

The heated end is pressed onto the fuel rail fitting. The fuel rail ends were removed from the throttle body and a vice was employed to hold the ends as the lines were pressed on. As the fuel line end cools it forms a very secure bond that assures the lines are tight and leak free.

Fuel lines are connected to the fuel rails. In this installation, the rear fuel rail is used as the return line and is connected to the fuel regulator. The front fuel rail is connected to the direct fuel line.

Both fuel lines are routed under the car. The return fuel line is attached to top line in this photo and the direct line is attached bottom line in this photo. You will note the direct fuel line is the original. Using an existing fuel line is ok as long as it is rated for 43 psi.

Now the electric connection is made to the fuel pump assembly. The wire assembly is first plugged into the fuel pump unit as shown here.

Then the connection is made to the fuel pump wiring harness, which is then routed under the car back to the engine compartment so it may be attached to the ECU harness.

The ECU placement comes next. Here, the unit is placed on the firewall to an extreme left location. Instructions indicate that an ample separation between the distributor and the ECU must be maintained to eliminate the possibility of electric impulse interference to the ECU emitted by the distributor or starter.

The RPM module is now attached, in this case the engine has an HEI unit rather than a coil distributor and white wire was extended to accommodate the attachment.

At this point all remaining wiring is completed and the battery is reattached so the fuel regulator can be calibrated to 43 psi.

Next step is to begin tuning the engine by way of the included handheld Setup Wizard. The Setup Wizard connection is made directly to the ECU harness plug as shown here. Then the Setup Wizard wire is routed to the driver compartment and plugged into the wizard.

With the Setup Wizard plugged in, the ignition is turned on and the tuning process begins. This is where Evan took over. He was eager to do the computer part of the installation.

Tuning is a very intuitive process and the wizard leads you in a step-by-step process

With the tuning accomplished the CPU continues to read the data and fine-tunes itself. Everything you need to know about
this process is explained in the detailed installation instructions that are included.


Watch FAST EZ-EFI Installation Video

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