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The VaporWorx Fuel Pump Controller

Wiring VaporWorx Fuel Pump Controller

We always say that our Infinitybox system plays nicely with other electrical accessories in your car.  This blog post is another great example of that.  We got a call from a customer asking about wiring the VaporWorx Fuel Pump Controller with his Infinitybox 20-Circuit Kit.  He was worried about having to wire in additional relays and run a lot of wire.  In reality, wiring the VaporWorx Fuel Pump Controller is simple and easy with the Infinitybox system.

The VaporWorx guys make some very cool products.  Click here to get to their website.  You have to appreciate a company with the tagline “We Give You Gas”.  Their core products improve the delivery of fuel in your resto-mod, street rod, hot-rod or Pro-Touring build.  They have been innovating products for reliable fuel delivery in cars with EFI systems since 2009.

Their core products are designed for returnless fuel systems.  There is only one fuel line going from the in-tank pump to your fuel rail.  There is no fuel regulator on the rail and no return line that brings excess fuel back to the tank.  Their Fuel Pump Controller mounts in the rear of the car, near the fuel pump.  It actively monitors the fuel pressure in the line at the outlet of the pump.  Using pulse-width modulation (PWM), they vary the pump power to keep the fuel pressure within a tight window.  This reduces dead-heading of the fuel pump and also reduces the amount that the fuel gets heated.  We use PWM to control things like fan speed and light dimming from our POWERCELLs and have blogged about how that works before.  Click on this link to learn more about PWM.

This blog post is going to walk you through wiring the VaporWorx fuel pump controller with our Infinitybox system.  We are only going to cover the connections from the battery, from the POWERCELL and to ground.  See their manual for more details on the rest of the sensor wiring required for their controller.  You can access the manuals and installation instructions for their products by clicking this link.

Just like any other blog post where we talk about integrating the Infinitybox system with other products, please carefully read and understand all of the steps required to install the VaporWorx Fuel Pump Controller.  You are messing with flammable fuel and electricity.  Make sure you are completely comfortable with doing this job.

For the sake of this blog post, there are three connections that we are going to cover: primary power from the battery, the fuel pump trigger from the POWERCELL and the grounds.

The primary power for the fuel pump controller is going to come directly from the battery.  This should be a simple connection since the controller should be mounted close to the pump in the tank and most guys are relocating their batteries to their trunks.  Follow the recommendations from VaporWorx for the gauge of wire going from the positive terminal on the battery to the BAT+ terminal on their module.  It is very important that this gauge of wire is sized correctly and that it is fused as close to the battery as possible.

Next, the fuel pump controller and the fuel pump need to be grounded.  The VaporWorx team recommends that you ground their pump controller and the fuel pump directly to the negative terminal of the battery.  This should be easy in most installs since guys are relocating the batteries to their trunks.

Last, the VaporWorx controller needs a fuel pump enable signal from the ECU.  When wired with the Infinitybox system, this signal is going to come from the fuel pump output on your rear POWERCELL.  In most 20-Circuit Kits, this is the TAN wire on the rear POWERCELL but check your configuration sheet for details on this output.  The POWERCELL output is going to connect to the blue wire in the GT150 connector.

The advantage of using the POWERCELL to supply the fuel pump enable signal is that you do not need to add any additional wiring.  You already have the POWERCELL located in the rear of your car.  You do not need to run a wire from the front of the car to the back.  You can simply use the POWERCELL to supply this signal.

Once you have power, ground and the fuel pump enable signal wired, you need to wire your EFI system to your Infinitybox MASTERCELL.  This is how the POWERCELL knows when to turn on the output for the fuel pump enable signal.  To do this properly, you need to understand if your EFI system uses a ground trigger for the fuel pump or a positive signal for the fuel pump.  The wiring diagram for your EFI system will define this.  Alternately, we have wiring diagrams for all of the popular EFI systems in the Resources section of our website.

If your EFI system sends a ground trigger for the fuel pump enable signal, you can wire the MASTERCELL fuel pump input to the EFI system’s fuel pump output.  We strongly recommend wiring a diode in series to buffer the MASTERCELL from the ECU.  As an example, the FAST XFI 2.0 sends a ground trigger for the fuel pump enable signal.  You can see how the recommended diode is wired at this link.

If your EFI system sends a positive trigger for the fuel pump enable signal, you need to flip this to a ground trigger.  You can use one of our inVERT Mini Buffers to do this easily.  The Holley Sniper EFI System uses a positive trigger for the fuel pump enable signal.  You can see how to wire in the inVERT Mini at this link.

This wiring diagram shows you all of the connections between our Infinitybox system and the VaporWorx Fuel Pump Controller.  You can download a PDF version of it by clicking this link.

Wiring Diagram for VaporWorx PWM Fuel Pump Controller

How to wire the VaporWorx Fuel Pump Controller with the Infinitybox System.

Please note that some wires are omitted from our diagrams to make them more clear.  Carefully follow the instructions that came with your Infinitybox system and the VaporWorx module for the full instructions.  Also note that the MASTERCELL input and POWERCELL output wire colors may vary depending on your specific kit and the options you have.  Always follow the configuration sheet that came with your kit.

Click on this link to contact our technical support team with any questions about wiring your VaporWorx Fuel Pump Controller with our Infinitybox system.

 

 

Infinitybox Express Kit Video

Our Infinitybox Express Wiring Kits are a powerful but simple way to wire any race car.  We have versions for track cars and drag cars.  They give your the power and control to switch your ignition, starter solenoid, fuel pumps, electric water pumps, cooling fans, telemetry, data acquisition, lights, trans brake and line lock solenoids plus other accessories.

The kit includes one of our solid-state POWERCELLs, a pre-engineered switch panel plus an IOX switch interface.  You also get all of the universal wiring that you need to complete the harness.  Check out this video to see the details of our Infinitybox Express Kits.

You can contact our team for more information by clicking this link.

What’s In The Box?

Our Infinitybox 20-Circuit Kit is a universal wiring harness.  You can wire practically any street rod, resto-mod, restoration, hot rod, kit car or Pro-Touring car with it.  It gets you all of the electrical control of lights, ECU’s, starters, fans, pumps and accessories that you need plus it gets you the capability to get the latest and greatest control of your car.

The 20-Circuit Kit is a universal wiring system that includes all of the components that you need to wire your car.  It includes our MASTERCELL, two of our POWERCELLs, the primary power harnesses to connect your battery to the POWERCELLs, the primary fuses to protect these power harnesses, the output harnesses from the POWERCELLs, the input harnesses to go from your MASTERCELL to your switches and the CAN cable that connects the cells together.  The kit also includes the manual for the system and the configuration sheet that is your road map to wiring your car.

The harnesses included in the kit are universal.  They have the mating connector for our system on one end.  The other end is a pig-tail.  You run this harness to your switches or your accessories.  You cut it to length and make the connection.

This video features Jay Harris, president of Infinitybox, walking through the contents of a 20-Circuit Kit.


With the 20-Circuit Kit as your electrical foundation, you can add any of our accessories to get a powerful and functional electrical system.

Be sure to subscribe to our YouTube channel and click on the bell icon so you get notified when we post new videos.

Click on this link to contact our team to purchase the Infinitybox system or to ask technical questions.

Power Module

Atomic EFI

We’ve blogged before about how to power many different EFI systems with Infinitybox.  Examples include the Ford Coyote ECU, the GM LS ECU, the Holley Dominator, the FAST EZ-EFI and many others.  This post is going to cover how to wire the Atomic EFI system from MSD.

Here’s what MSD says about their Atomic EFI:

“The Atomic EFI provides the performance and driveability benefits that you expect from fuel injection. Quick starts, smooth idle and great throttle response just to name a few. Combine the fact that the Atomic will support ignition timing through the ECU and you have a win-win combination. Initial timing is handled through a compact handheld monitor where you simply answer a few car guy questions about your engine and you’re off and running!”

Just like any other EFI system, wiring it with our Infinitybox 10 or 20-Circuit Harness Kit is very easy.  You get several advantages over wiring with a traditional wiring harness.

  • You run less wire in the car.  The ECU sits behind the dash and connects to the MASTERCELL.  The cooling fan and fuel pump are wired to their local POWERCELLs.  You’re not running wires from the ECU all over the car.
  • You can eliminate the need for relays and external fuse holders.  The POWERCELLs are your relays.  Each output is fused inside the POWERCELL.
  • You get security and immobilizer functions in your Infinitybox system.  You don’t have to add a separate alarm system to keep unwanted people from starting your car.
  • You can get cooling fan timing and delays right in the Infinitybox system.  You don’t need to add separate controller modules.

Before you connect your Infinitybox system to your Atomic EFI system, you must completely understand the instructions from MSD.  Click on this link to get to the manual for their Atomic EFI PN 2910 – Throttle Body Kit.  This post is going to show you how to wire the key-on power to the Power Controller.  It will also show you how to wire ground, constant battery power, the fuel pump trigger and the cooling fan trigger.  See the MSD manual for the rest of the electrical connections to their harness.

This diagram will show you the details of wiring your MSD Atomic EFI system to your Infinitybox system.

Wire MSD Power Module

Wiring diagram showing how to wire the MSD Atomic EFI with Infinitybox

To start, you need to connect constant power and ground to the MSD Power Module harness.  MSD recommends connecting the large red wire directly to the battery.  The ground wire should get connected to the chassis through a metal-to-metal connection.

The small red wire is the key-on power wire to the Power Module.  When you key is in the on or start position, you should have battery voltage on this wire.  The small red wire in the MSD harness is going to connect to the ignition output wire on your POWERCELL.  Check the configuration sheet that came with your kit for the correct color and connector orientation for all of the POWERCELL connections.

There are two wires in the MSD Power Module harness for cooling fan triggers.  The pink wire is the primary and the tan wire is for the secondary cooling fan.  Both of these wires are intended to ground a relay coil to turn on the fan.  You can connect them directly to the MASTERCELL inputs.  The MASTERCELL inputs are expecting a ground trigger to turn on the inputs.  You must put a diode in-line between the Power Module fan trigger wires and the MASTERCELL input wires.  This should be a 1N4001 diode.  The orientation of this diode is critical for this to work properly.  See the diagram above for correct orientation of the diode.

Once you have the MASTERCELL input wired to the Power Module for the cooling fan trigger, you need to connect the POWERCELL output to your cooling fan.  See the configuration sheet that came with your kit for the proper wire color.  If you want to use a secondary cooling fan, you can use any of the OPEN outputs on your system.

There is a large orange wire on the Power Module harness for the fuel pump.  This wire puts out a positive signal for the fuel pump.  You will need to invert this signal to a ground signal to work properly with the MASTERCELL.  You can use a relay to do this.  This link will show you how.  The easier way to do this is to use one of our inVERT Mini‘s.

Once you have the MASTERCELL input for the fuel pump properly connected to the MSD Power Module fuel pump output, you need to wire your POWERCELL output to your fuel pump.  Again, your configuration sheet will shows which wire to use.

That’s it.  All of your relays and fuses are built into the Infinitybox system.  Once you follow these steps, you’re ready to power up your system and start tuning the engine.

You can download a PDF copy of this wiring diagram by clicking this link.

Contact our technical support team with any questions related to wiring the MSD Atomic EFI system with your Infinitybox system.

 

 

 

Wiring the Holley Dominator EFI System

EFI systems have been gaining in popularity for years.  Guys want the conveniences, flexibility and power that they get in the engines in modern cars.  Companies have been leveraging technology developed by the large OEMs to bring Electronic Fuel Injection systems to restorations, hot-rods, street rods, resto-mods and component cars.  Our Infinitybox technology does the same thing.  We take technology used in practically every new car and bring it to the average guy in his garage.  He gets the conveniences of less wire, more diagnostics and better functionality out of his wiring system.

It is very easy for us to bring the two systems together:  Infinitybox powering EFI.  This is a question that we get a lot.  How do I connect my Infinitybox system to my EFI system?  We’ve blogged before about the FAST EZ-EFI and others.  This post shows you how to connect the Holley Dominator EFI System to the Infinitybox 20-Circuit System.

Holley Dominator EFI System

First things first, Holley has some very important notes and warnings about wiring their system.  Be sure to read their manual thoroughly and follow their instructions.  The most important things are related to good grounds and keeping all signal & data wires away from the coil wires.

You are going to wire the Dominator, following their instructions.  There are two simple differences when you connect in the Infinitybox system.

Picture of wiring diagram showing how to wire the Holley Dominator EFI system into the Infinitybox system.

Picture of wiring diagram showing how to wire the Holley Dominator EFI system into the Infinitybox system.

First, you are going to give the Dominator its key-on power from the Ignition output on the front POWERCELL.  You going to connect the ignition switch to the ignition input on the MASTERCELL.  When you turn on the ignition switch, the MASTERCELL sends a command to one of the POWERCELLs, usually the front, to provide battery voltage to the ignition output.  This is usually the light-green output on the front POWERCELL but always refer to the configuration sheet that came with your Infinitywire kit.

Next, you are going to use the Infinitybox system to power the fuel pump.  There are several advantages to doing this.  First, the Dominator fuel pump output is only capable of delivering 10-amps.  In most cases, you’d need to add a relay to switch the current to the pump.  The POWERCELL is the relay and it is capable of delivering 25-amps.  You won’t need to add a relay for most commercially available pumps.  Second, the fuel pump is switched from the rear POWERCELL, which is mounted in the rear of the car.  You don’t have to run any extra fuel pump wires to the back of the car.  You just wire the fuel pump from the rear POWERCELL.

There is an important warning that must be followed when you wire MASTERCELL inputs to other controllers, like EFI systems.  MASTERCELL inputs are designed to be connected to ground.  This lets us keep the wire bundles small and simplify how you connect to switches.  Applying 12-volts to a MASTERCELL input will damage the Cell and will void its warranty.

In the case of the Holley Dominator EFI system, it puts out 12-volts for the fuel pump trigger.  You can simply convert this 12-volt trigger to a ground trigger with one of our inVERT Mini modules or a relay.  The application note that we created for the Holley Dominator EFI system shows using an inVERT Mini.  You can download a simple wiring diagram showing you how to do this with a relay by clicking this link.

You can download a PDF of the application note that shows how to wire the Holley Dominator EFI system with the Infinitwire 20-Circuit Harness by clicking this link.

If you have any questions, please feel free to contact our technical support group at (847) 232-1991 or email us at sales@infinitybox.com.