If you were to ask most DIY project car guys and gals, most would say that wiring is the least favorite part of the build. I know it is for me and the project cars I’ve had to wire over the years. Many long nights in the garage with electrical tape, heat shrink, a lighter, and the floor a rainbow mess of wires and fuses as I’m trying to make some junkyard engine harness, dash harness, or taillight wiring work with the other components I’ve cobbled together. Thankfully, the aftermarket has come to the rescue over the years to fill the void of high-quality pre-made harnesses for your project car or engine build. So it’s time to say goodbye to the long nights in the garage and exterminate the rat’s nest with Ron Francis Wiring.

Ron Francis Wiring now offers kits for the increasingly popular Gen 1 and Gen 2 Ford 5.0 Coyote with either an auto or manual trans.

Based in Chester, Pennsylvania, Ron Francis Wiring has been around for 50 years. Ron started the company in 1974 to address a segment of the performance automotive aftermarket that needed improvement at the time. Ever since, they have provided quality wiring solutions for racers, hot rodders, and restoration experts alike—wiring solutions that they aren’t afraid to put to the test with their own vehicles, like this 1984 SVO Foxbody Mustang with a supercharged 5.0 Coyote swap that is no stranger to the race track.

The Telorvek panel design has been around for decades and is a simple yet proven system.

Ron Francis Wiring Detail Zone engine harnesses are the only ones offered with the Telorvek panel. This panel acts as a link between all the engine sensors and the computer and as the fuse and relay box. This allows for a simple, straightforward, and easy-to-understand layout for the dozens of wires needed to run your engine and transmission. Each circuit is laid out and labeled, making running each wire simple and making future troubleshooting hassle-free. This design also allows adjustment of wire lengths to create an exceptionally neat installation. Plus, you can mount the computer anywhere in the engine bay or inside the vehicle.

Ron Francis Wiring utilizes a similar Telorvek panel design in their Express Series chassis harness kits.

Supplied are new GM or Ford connectors and colored fire-resistant copper wire. The kits come with 20 feet of wire for each sensor and are printed every 10 inches with the sensor name and terminal it connects to. Trim to length, install the provided terminals, and connect to the panel. The Telorvek panel design has been around for decades and is a simple and proven system. Ron Francis Wiring offers engine harness kits for the 80s and 90s GM and Ford small-blocks, GM Gen III LS, Ford Modular, including the 2011-2017 5.0 Coyote, and more.

This Coyote swapped Foxbody Mustang utilizes a trunk mounted panel to house its wiring.

Ron Francis Wiring utilizes a similar Telorvek panel design in their Express Series chassis harness kits. These wiring harness systems use a central fuse and relay box with connections that are clearly labeled and organized. They offer these kits for everything from simple race cars and off-road vehicles that need the basics to run to universal model-specific kits that are terminated with the circuits you need to get your classic car or truck wired correctly and with ease. The Express Series Fuse box also has room for future additions to your project, like lights and a winch for you off-road guys or the necessary circuits needed when adding nitrous and bottle heater to your street/strip muscle car.

Race car, classic truck, muscle car, or even a kit car, Ron Francis Wiring has the wiring and electrical components you need to get your project out of the garage and on the road. So throw away that old box full of dingy used spare wires, broken and brittle connectors, questionable relays and fuses, and exterminate the rat’s nest with Ron Francis Wiring.