When it comes to racing, every second counts and so does every detail in your engine.
We specialize in building high-performance 50cc and 65cc race engines that are engineered for power, precision, and durability. Backed by years of experience in the racing industry and a commitment to excellence, our engines are trusted by riders who demand nothing but the best.
We know what it takes to win—because we’ve done it ourselves. Every engine we build is crafted by a seasoned race mechanic with real-world experience.
- The process begins the moment an engine arrives. Each one is carefully inspected and meticulously cleaned using a vapor hone, ensuring every surface is spotless and ready for precision work.
- As part of every build, we replace all critical components—including the cylinder, crankshaft, piston, clutch, bearings, gaskets, seals, O-rings, water pump, and spark plug.Where the rules allow, we also upgrade OEM parts with higher-performance alternatives, giving you every legal competitive edge.
- Not all OEM cylinders are created equal. That’s why every cylinder undergoes a detailed inspection—and if it doesn’t meet our strict standards, it’s replaced. We then precisely match each piston to its cylinder for maximum performance and reliability.
- Each engine comes with a brand-new carburetor, thoroughly inspected and tuned specifically for your build—ready to race straight out of the box.
- Key specs like timing, squish, and ring gap are set to our exact preferences
- And we don’t stop there.Every engine is tested on our in-house dyno, expertly tuned, and put through a rigorous final inspection to ensure it meets our championship-level standards before it ever hits the track.
From Ohio, Mario Testa is a highly skilled and experienced engine builder and race technician, whose passion for motorsports has driven him to the top of the industry. With decades of hands-on experience and a reputation for precision and performance, Mario has worked with some of the most respected teams and riders in the industry.
Yamaha Trackside Support Technician
Providing expert technical support to Yamaha riders on and off the track, ensuring peak performance under the most demanding conditions.
FactoryKawasaki Team Green Technician
As a part of Kawasaki’s Team Green program, Mario played a key role in helping riders secure multiple major amateur championships through his expertise and dedication to performance.
Championship Winning Mechanic
Mario’s expertise has helped riders secure multiple amateur championships, cementing his reputation as a trusted and results-driven mechanic.
Toyota Engine Tuner – NASCAR Cup Series
Beyond dirtbikes, Mario has showcased his versatility as an elite engine tuner for Toyota in the high-stakes world of the NASCAR Cup Series. His expertise played a key role in delivering peak performance, contributing to winning a regular season championship in one of the most competitive motorsports arenas.
With an extensive history of success in both dirtbike racing and automotive motorsports, Mario has built a reputation for reliability, ingenuity, and exceptional performance. Partnering with Carolina Cobra, Mario is dedicated to bringing maximum performance to the 50cc and 65cc community, ensuring young riders have the competitive edge they need for success.