Common-rail fuel systems
Parts and solutions focused on performance, reliability, and efficiency.
About Motorsport Diesel
Diesel performance, built on experience
Motorsport Diesel is a family-owned business founded by Shane Roark. We build diesel performance parts and develop fuel-system test equipment for racers and enthusiasts.
2002Shift to diesel performance
2012Development of fuel-system test equipment
Our story
From curiosity to Motorsport Diesel
Shane has always wanted to understand how things work. He started with gasoline engines, then turned his attention to diesel performance in 2002. Drag racing and engine building led to metal fabrication, CNC machining, common-rail fuel systems, and software development.
In 2012, Shane began developing diesel injector and pump test equipment, adding computer programming to the mix. Motorsport Diesel grew from that combination of hands-on performance work and engineering.
What matters
Performance has to last
Precision
Good results start with careful design, machining, and measurement.
Reliability
Parts and equipment have to work under real-world conditions.
Continued improvement
We keep refining our products through testing and use.
What we do
Built for diesel performance
We make parts and test equipment for hands-on builds, testing, and development.
Injector and pump test equipment
Equipment for accurately testing diesel injectors and fuel pumps.
Performance engineering
Experience in drag racing, engine building, fabrication, and tuning.
Research and development
Ongoing testing, software work, and product development for modern diesel systems.