When the PCM triggers the two additional relays, the same voltage flows through each electric fan motor. Our Be Cool radiator module is rated at 700 horsepower. Since every LS engine swap is a little different and there are lot of choices to be made, you can use this guide as a reference for ideas and part numbers as you move through the process. The system also comes with stainless steel oxygen sensor bung(s), target AFR and timing control if desired, two fan control outputs, 5V tach output driver for most tachometers and a speedometer output driver for most electric speedometers. Due to the LS platform’s small size and legendary reliability, it’s become a favorite among enthusiasts worldwide. It runs on low speed when the minimum coolant temperature is reached and ramps up as temp increases or if triggered by the AC compressor input. I proceeded to search and eventually settled on a dual fan setup from a 1998 Mercury Mystique, I believe the fans are found on 1995-1999 range on V6 Ford Contours and Mercury Mystique, for the price of $25.00. We curently offer several types of PWM controlers PWM-CAN. One of the final consideration in any LS swap is the air intake. A good recommendation is to check for clean and proper grounds. The user-tunable FAST XFI 2.0 controller carries all of the usual functions for LS operation as well as fuel pump and cooling fan controls. fan swap Mar 17 2013, 9:55pm Ive been wanting to swap out my power hogging mechanical driven fan on my 2004 2500 4x4 6.0 for an electric fan.. since i just found out i need to replace my radiator do to a small leak i figured i might as well do this a little sooner.. lol.. It included dual 11-inch SPAL fans, and an optional 7-plate cooler for our automatic transmission. Included is a 70amp relay, enough for even the most power hungry of cooling fans. Fan modules include all of the necessary components to convert from a mechanical fan to an electric fan for the LS swap. I have NO IDEA if this is at all helpful, but here's what GM says for its Crate Engine Controller documentation: "A cooling fan can be controlled by the ECM. These radiators are dual one-inch cores with .80-inch wall aluminum tanks, flanges, billet necks, and drain petcock. This was a mediocre way of doing things, primarily because the current required to spin the fan was drawn through the switch itself. It’s important to note that the Bone Yard Series modules are universal radiators only, and do not include the Direct-Fit LS swap components such as fans, wiring harnesses, etc. There are many different reasons as to why LS engines are the go-to swap for everything from classic muscle cars, to import cars. © 2017 Power Automedia. For more info, check out the manufacturer at http://www.autocoolguy.com We asked Larocque the disadvantages of using an OEM cooling system from a donor vehicle when performing an LS swap, to which he replied, “The LS engine’s original cooling system was designed to fit in that engine’s original chassis, and will most likely not fit in your new vehicle’s chassis without heavy modifications to it.” He continued with, “Our LS swap modules remove the guess work by providing you with the correct sized hoses, the correct inlet and outlet locations, a steam port, and the proper mounting locations for the recipient vehicle.”. Larocque comments, “Obviously your choice in coolant will play a major role in the health of your cooling system. Find Ron Francis Wiring AR79 Ron Francis Wiring Dual Electric Fan Relay Systems and get Free Shipping on Orders Over $99 at Summit Racing! Don’t forget to check out Be Cool’s website for all of your application needs. Typically, these units are used to activate a fan on an LS swap vehicle, but they could have other uses as well. Learn More | … – Justin Larocque, Be Cool, Justin Larocque from Be Cool comments: “Once the proper electric fans and radiator has been selected, and the wiring has been performed correctly, you’ll need to figure out if the current alternator is adequate enough to support the additional amperage draw from the new high-performance electric fans.”, Pictured here is Single Fan Wiring Harness Kit from Be Cool. Knowing The Type of Fan Wiring Harness Kit You’ll Need, Once the proper electric fans and radiator has been selected and the wiring has been performed correctly, you’ll need to figure out if the current alternator is adequate enough to support the additional amperage draw from the new high-performance electric fans. 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