[Wesley Kagan] is building a Corvette with a V12 engine swap. Much of the driveline will be entirely replaced, which means the components to drive the mechanical speedometer and tachometer will no longer be present in the final car. Instead, [Wesley] came up with his own electronic gauge conversion to do the job.

It’s a build that respects the original aesthetic of the car, reusing the original gauges but driving them differently. In place of the original mechanical drives from the transmission and distributor respectively, the speedometer and tach instead get servos installed in the back with a 3D printed gear train. The odometer gets its own continuous rotation servo, too. An Arduino Nano is used to drive the servos, using data from a GPS module and the car’s ignition system.

Files are available for anyone wishing to 3D print parts to modify their own gauges. We can’t wait to see how the gauges look when finally installed. We can imagine some teething problems with slew rate or update speed, but we’re sure it’s nothing [Wesley] can’t engineer out with a few revisions. Custom gauges are something we’ve seen a few times around these parts; this digital setup is particularly useful for engine data. Video after the break.

Nearly any car comes with the proper dashboard to get you from point A to point B, but what if you want something all your own displaying important stats? While there’s not a lot of technical info on the build, Jroobi’s MX5/Miata Arduino-based TFT cockpit project is sure to inspire, whether via the first or second iteration shown below.

The first version puts RPM and KPH values on coaxial sliders in the right circular display. That leaves the second round display for info such as what gear you’re in, along with auxiliary displays for extra data. The second splits up RPM and KPH between the main circles. It also features interesting light-up alerts in the middle, as well as a gauge similar to the first on the top. 

The first iteration—and presumably the second—includes a clever user interface setup, where a rotary encoder surrounds the existing trip reset button for brightness control while still preserving its reset ability.