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Using Open Outputs

This blog answers a question received from a customer plus shows off the progress on his car.  Mike O just finished his LS3-powered Brunton Stalker Classic.  This is a tribute to the Lotus Super 7You can learn more about there car by clicking this link.  His question was about how to use the open outputs on his Infinitybox 20-Circuit Kit.  He wanted to add a water pump and asked if he could use the any of the open outputs to do this.  He also wanted to know how to wire the MASTERCELL inputs to control his open outputs.  We thought that this was a good question that was worth posting up on the blog.

Before we get too technical, let’s talk about the car.  This is another example of a very unique build and shows how simple yet powerful our Infinitybox system can be.  Mike has been working on this car for a while.  He squeezed a 430 hp GM LS3 engine into this chassis all managed by a custom Speartech engine wiring harness.  Considering that the original Super 7’s came with engines the same size as those used in most garden tractors, this LS will make the Birkin fly.

He handcrafted the rear fenders, back panel, cover and rear diffuser out of aluminum.  He custom made the flared wings out of fiberglass.  On top of all of that, he painted it Lotus Racing Green with a yellow racing stripe.  The LS3 is mated to a T-56 6-speed and the brakes are disc from Wilwood.

 

Mike wired the car with our 20-Circuit Kit and inLINK.  The benefit to him was simplifying the wiring, reducing the total amount of wire and giving the flexibility with making changes over his project.  He mounted his MASTERCELL and front POWERCELL just forward of the dash board.  Here is a picture of him laying these out.

 

 

Okay… now here’s Mike’s question.  He wants to add a Meziere electric water pump to the car.  He originally had a belt-driven water pump.  He wanted to add this electric pump to decrease the load on the engine plus give him more flexibility to cool the car.  Per the manufacturer’s specs, this pump draws 6 to 7-amperes under normal use.  This is well under the 25-amps that a POWERCELL output can supply.

Mike already has the car wired.  With a traditional wiring harness, adding accessories after the fact usually requires running new wires through the car.  With the Infinitybox system, we build in auxiliary outputs that can be used for practically anything.  These outputs can be used for things like extra lighting, multiple fuel pumps, amps, sub woofers and additional cooling fans.  In a typical install, there is 1 open output on the front POWERCELL and 4 on the rear.  Mike simply needs to connect the water pump to the open output on his front POWERCELL.  Then he needs to take the corresponding MASTERCELL input and connect that to a switch for the water pump.  Since he already has the Infinitybox backbone installed in the car, he doesn’t need to run any extra wire through the interior or through the firewall.

The configuration sheet that came with your kit will get you all of the details that you’d need to use these open outputs.  This link will take you to a blog post that gives you more detail on how to read the configuration sheet.  All of the open outputs are set to TRACK.  This means that the output will track the state of the switch.  When the switch is on, the output is on.  When the switch is off, the output is off.  In the case of Mike’s water pump, he can have a switch on the dash what would turn the pump on and off.   He could also wire the MASTERCELL input for his pump directly to the ignition switch so the water pump will turn on when the ignition is on.  You can use this functionality right out of the box with no configuration changes.

We can also custom configure the behavior of these open outputs for you.  One of the most common is to add a timer to the open output used for an electric water pump.  We can set this output to stay on for a period of time after you turn it off.  For example, your electric water pump could continue to run for one minute after the ignition is turned off to help cool down your engine.  Contact our technical support team for more information.

This example shows how flexible and powerful the Infinitybox system can be in your car.  It helped Mike modify the electrical system in his car with minimal changes to add this new water pump.  Thanks to Mike O for asking the question and for sharing the pictures.  The car looks great and we’re proud to be a part of it.

Click on this link to contact our team with any questions about how our Infinitybox system could be used in your project car or truck.

Infinitybox Powers Some of the Best Cars Ever Built

SEMA Battle of the Builders

Since our beginnings almost 10 years ago, our Infinitybox system has been used to wire and control some of the best builds out there.  At the 2017 SEMA Battle of the Builders, we are proud to announce that 3 of the 12 finalists cars were wired with Infinitybox.  These include the 1963 Corvette built by Eddie’s Rod & Custom, the 1966 Corvette SplitRay, built by Scott Roth and his team at The Auto Shoppe and the 1969 Camaro built by Miranda Built.

The 12 finalists for the SEMA Battle of the Builders were picked from over entrants at the 2017 SEMA Show.  This pool was whittled down to 40 then down to 12 by industry judges.  These 12 finalists represent the most elite builders in the industry.  The winner was picked by the judging of the 12 finalists.  Here are the details on the three finalists wired with Infinitybox.

1963 Corvette built by Eddie’s Rod & Custom in Cedar Rapids, Iowa.

The Corvette was a Select Six winner at Chicago World of Wheels, and received 1st in Class awards in best interiors, engine compartments, etc. The car has custom AME independent Chassis, floorpans, wheel houses, exhaust, bumpers, & interior, flush-mounted glass, machined trim parts, cross-ram EFI, Infinitybox wireless control system, Kicker audio system, dash iPad interface, Tremec six-speed, extended body valences/rocker.

This link will take you to more details on the car from our blog.

1966 Corvette SplitRay built by The Auto Shoppe in South Burlington, Vermont.

The car is a SplitRay 2017 Pirelli Great 8 cut down the middle and widened 6 3/8. It has a Z06-inspired interior, LS9 with a one-off supercharger system, and a six-speed transmission. Infinitybox provides complete control of the car with inTOUCH NET. It took over 20,000 hours to build.

This link will take you to more details on the car from our blog.

1969 Chevrolet Camaro built by Miranda Built in Delray Beach, Florida.

The car features a Roadster Shop Fast Track chassis, 440ci LSX Motor Dry Sump w/ Flex Fuel, TR6060 Transmission, completely fabricated front and rear Valance, Rocker extensions, engine bay, flush-fitted front and rear glass, shaved drip rails, Infinitybox multiplex system, custom one-off interior, custom Dakota digital gauge cluster, ADV1 wheels, and Wilwood brakes. “We’re just doing what we love to do,” said Miranda.

Each of these cars represents some of the best automotive engineering in the world.  Congratulations to Eddie’s, The Auto Shoppe and Miranda Built for being recognized as finalists in the 2017 SEMA Battle of the Builders.

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.