This Tiny V-8-Powered RC Monster Truck Sounds Incredible
It isn’t the first time we’ve seen a miniature, fully functional V-8 engine. Nor is it the first V-8 engine installed in a radio-controlled car. But this particular setup, as showcased by JohnnyQ90 on YouTube, is arguably the best-looking and best-sounding one yet, and it borders on perfection.
The heart of this project is a 44cc Cison V-8 engine, fueled by gasoline. This engine boasts a classic pushrod cam-in-block design, complete with a simple distributor and a single four-barrel carburetor. A 3D-printed air scoop sits atop, and large exhaust headers extend from the sides, echoing the style of classic NASCAR vehicles. These features contribute to the impressive sound.
In a feat of miniature engineering, the engine is liquid-cooled and equipped with electric start. Custom fabrication includes new spark plug connectors for improved electrical connections and an air filter housing milled from aluminum. Perhaps the most critical custom element is the clutch. The initial setup wasn’t robust enough to handle the engine’s power and the truck’s full-time four-wheel drive system. The upgraded clutch now allows the truck to perform wheelies with ease—a must for any self-respecting radio-controlled monster truck.
When assembled, the truck’s size and wheelbase are equivalent to a 1:10 scale model, although the engine itself is technically 1:6 scale. The body is a classic square-body Chevy Stepside, complete with functional front and rear lights. A small alternator provides some power to the onboard electrical systems, though batteries remain necessary.
In operation, the truck is undeniably impressive. The engine delivers the characteristic rumble of a V-8, transitioning into a distinctive NASCAR-style howl at higher RPMs. While the exact horsepower figures are unknown, the truck’s acceleration during a parking lot test drive is clear. The primary limitation seems to be the gearing, as the truck is significantly redline-limited. There is a good chance of a better transmission in a future build.
The engine alone costs around $2,000, not including the servos, wheels, chassis components, and radio. Add in the custom-fabricated aluminum parts, and the investment climbs. However, after seeing the video and hearing the engine’s roar, the result appears to be worth the expense.
