Shannon Davis of Davis Technologies is continually brainstorming new ideas and tweaking his existing devices to make them quicker-responding, more accurate, more feature-rich, and improve on their compatability with third-party devices. And that’s been the mantra on the drag racing side of things throughout the 2019 season and leading into this year’s PRI Show.
A year ago, Davis revealed his long-awaited Vehicle Position Sensor (VPS), the fastest and most accurate such device on the market at the time. Once developed and finalized, Davis wasn’t simply content to send it off for manufacture and move on to the next project, though — he hinted at further capabilities. The VPS, combines accelerometers, magnetometers, and gyro-meters to provide positional 3D data on a race car — pitch, roll, and yaw.
The VPS already features wheelie control and virtual time-slips through the use of its sensors. But, Davis will soon push yaw control — deviation from the center of the groove, or what he calls “Yaw about to hit the wall” — and roll control, which can work in concert with yaw control to detect a wayward race car on its way to crashing and throw the parachutes or kill the power, for example.
The VPS will also soon have a firmware upgrade to utilize CAN-Bus connection to any third-party ECU’s from manufacturers that choose to participate. This will allow setup and full integration with your chosen ECU and digital dash. MoTec is currently the only manufacturer compatible with the VPS via CAN signal.
Davis has also added CAN connectivity to the popular Profiler EFI module, along with new and improved functionality. This device is a more compact and affordable version of Davis’ highly-touted Profiler wheel-speed management device that can be integrated with your own EFI/ECU system. By forgoing the Profiler with a digital screen or the remote handheld screen, one can save hundreds of dollars.
The CAN connection provides a simpler and more efficient means of interconnecting devices. Davis uses the example: “it’s easier, because the fuel injection already knows the transbrake is pressed, so just tell the CAN that the transbrake is on and we’ll read it from that. So you don’t have to run a transbrake wire to the fuel injection and to the Davis box.”
Davis continues onto the simplicity provided by the Profiler EFI module.
“This device is good for a blown Pro Mod racer who wants everything in one box, but if you’ve got an EFI system, you probably don’t need our relays running your shifters or anything,” Davis says. “So, if you have a fuel injection system managing your whole car but you’d like to have Davis traction control, you can add it with the Profiler EFI module or one of our other TC series traction-control units.”
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