Davis Technologies is best known in the racing industry for its traction control devices and technologies, but when you’ve got a highly technical mindset like founder Shannon Davis and his team do, the gears get to turning, so to speak, on products related to and even outside of that main scope of the business. Case in point is Davis’ Smart Relay and Relay Box 4, products that have been in the catalog for a while but don’t often get the attention that they deserve. Neither is specific to traction control systems, but certainly aids in their operation if you should choose to use one. They are instead exceptionally useful to any racer who requires the use of relays to operate various systems on their vehicles.

The Smart Relay features four solid-state 20 amp outputs, is fully programmable and protected (current/temp), is extremely fast and pulseable, with programmable inputs, an intuitive software interface, and has a Bump Box/Pro Axe built in. It’s particularly great for solenoids, and it’s also small and lightweight, so it can go virtually anywhere in a vehicle. It has quick disconnect plugs, CAN Bus compatibility, is online upgradable, and there’s an optional color touchscreen you can purchase to program it.

“This is a four-channel box that we rate at 4 amps each, under the premise that you’re drag racing,” Davis says. “This isn’t something you’re going to run your electric fans off of or a fuel pump, and it would be kind of a waste to do that, because it’s a very smart, programmable system. This is made to run your lock-up converter, lean-outs, dump valves, and so on. You can program this through the software or the hand-held. It’s just like the Profiler where you can program events.”

The Relay Box 4.1 features four solid-state 20amp outputs and is also fully protected (current/temp), fast and pulseable, works with positive or negative inputs, is great for solenoids, and has quick disconnect plugs.

“The board that’s in the 4.1 is the brawn, and if you take that board and put it in the Smart Relay with another board, you have the brains and the brawn,” Davis explains. “It just takes an input, and turns on an output. It’s just a solid-state relay. But if you take something like a Holley on a low-power output to drive a solid-state relay, these are 40 amps each that you can pulse and ramp. With an MSD Grid or something, you can control lock-ups, shocks, lean-outs, time, engine or driveshaft RPM, or anything that you need to program. X2785 racer Ryan Milliken uses the heck out of these control converter dump and transmission controls.”