LED Air Vent Gauges Are A Tasteful Mod For The Mazda Miata

January 27, 2023 by Lewin Day 23 Comments

Anyone in the JDM scene can tell you, round air vents are prime real estate for round analog gauges. If you want a gauge but don’t want to block your vent, you could consider building these LED vent gauges from [ktanner] instead.

The design is simple. It relies on 3D printing a replacement bezel for the Mazda Miata’s stock round air vents. This bezel is designed to hold a NeoPixel ring from Adafruit. When built with the optional laser-cut diffuser, the parts have a near-stock look when the LEDs are turned off. It’s a classy, stealthy mod – exactly the sort of thing Miata owners need but never seem to have! (Author Note: don’t be mad, I was once one of you!)

With 24 addressable RGB LEDs, it’s possible to display all kinds of data by turning the LEDs on and off and varying the colors. For example, you could readily build a boost gauge that turns on more LEDs at higher boost pressure. It could then be set up to flash red in the event that you surpass safe thresholds. [ktanner] hasn’t specified any particular microcontroller for the setup — but just about any part you like can be used to drive NeoPixels, after all.

If you’re new to NeoPixels, you might find a simulator useful for developing your projects. Meanwhile, if you’re doing similar work on other cars, be sure to hit us up on the tipsline!

Cyberpunk Mazda MX-5 Packs Onboard Cyberdeck

January 10, 2021 by Tom Nardi 10 Comments

Back in April of 2019, inspired by iconic films such as Blade Runner and Akira, [Chris Watson] embarked on a journey to create his very own cyberpunk roadster from a 1991 Mazda MX-5. After pouring an incredible amount of blood, sweat, and fiberglass into the project, he now has a vehicle that wouldn’t look out of place cruising the streets of Neo Tokyo. Even if you’re not usually into car mods, his impeccably photographed build log is an absolutely fascinating journey.

But as impressive as the car itself might be, what really caught our attention was the computer sitting on the dash. From early on, [Chris] wanted the vehicle to have a companion cyberdeck that would be used to control various onboard systems. At this point it’s just for show, but he says ultimately it will be integrated with the electric motor he plans to install in place of the MX-5’s original power plant. We can’t wait to see it.

Of course, the lack of a practical application has hardly stopped us from admiring any of the other cyberdecks we’ve covered thus far. This one started out life as a laptop with a broken screen, which [Chris] beheaded and connected it to 15″ external display mounted in the top of a heavy-duty case. With a new SSD and a fresh copy of Linux Mint to verify all the hardware was still functional, he put together an MDF bezel for the display that includes some faux antennae and covered aircraft style switches.

When this futuristic roadster is making an appearance at a car show or contest, [Chris] makes sure to load up some suitably high-tech looking imagery on the display. It even shows some flashing technobabble error messages pulled from The Fast & The Furious.

Traditionally we haven’t covered many custom car projects, though to be fair, we traditionally haven’t seen many that looked like this either. But between ever more technologically advanced vehicles and the insightful car modding column helmed by our very own [Lewin Day], we expect tricked out rides may become an increasingly common sight on these pages.

Putting Carbs On A Miata, Because It’s Awesome

August 8, 2019 by Lewin Day 100 Comments

Carburettors versus electronic fuel injection (EFI); automotive fans above a certain age will be well versed in the differences. While early EFI systems had their failings, the technology brought with it a new standard of reliability and control. By the early 1990s, the vast majority of vehicles were sold with EFI, and carburettors became a thing of the past.

The Mazda Miata was no exception. Shipping in 1989, it featured not only multiport fuel injection, but also a distributorless ignition system. Consisting of two coilpacks in a wasted spark configuration, with computer-controlled timing, the system was quite advanced for its time, especially for a budget sports car.

Despite the Miata’s technological credentials, those in the modified car scene tend to go their own way. A man by the name of Evan happened to be one such individual and decided to do just this — scrapping the EFI system and going with a retro carburetor setup. It was around this point that this I got involved, and mechanical tinkering ensued.

Continue reading “Putting Carbs On A Miata, Because It’s Awesome” →