Mitsubishi Sirius: What Makes This Engine a Powerhouse?

Mitsubishi Sirius - What Makes This Engine a Powerhouse?

When it comes to JDM engines, few can match the reputation of the Mitsubishi Sirius engine. First introduced in 1981, the Sirius engine has become famous for its power, reliability, and versatility. Over the years, it has undergone several changes and improvements, but its core characteristics remain the same. In this blog post, we will explore what makes the Mitsubishi Sirius engine a powerhouse and why it is highly regarded among automotive enthusiasts.

Design and Features

The Mitsubishi Sirius engine is an inline-four engine with a 16-valve DOHC (double overhead camshaft) design. Depending on the model, it can have a displacement ranging from 1.6 to 2.5 liters. One of the standout features of this engine is its lightweight design, which is achieved through the use of an aluminum cylinder head and block. This, combined with its compact size, makes it an ideal choice for a wide range of vehicles, from sports cars to family sedans. Additionally, the engine has a balanced shaft system that reduces vibration and enhances its smoothness.


The Mitsubishi Sirius engine is renowned for its performance, thanks to its advanced DOHC design and high-revving capability. Depending on the model and configuration, it can produce anywhere from 100 to 300 horsepower, making it a popular choice for performance enthusiasts. The engine's ability to deliver power smoothly and consistently at high rpm is one of its primary strengths. It also has good low-end torque and responsive throttle, making it ideal for both street and track use.


One of the most significant advantages of the Mitsubishi Sirius engine is its reliability. It has a robust construction and is designed to withstand high temperatures and high loads. Its advanced oiling system ensures that all critical engine components receive sufficient lubrication, reducing the risk of engine failure. Additionally, the engine's aluminum construction allows for better heat dissipation, which reduces the risk of overheating. With proper maintenance and care, this engine can last for many years and miles.

Modifications and Tuning

The Mitsubishi Sirius engine is also popular among performance enthusiasts because of its capability for modifications and tuning. The engine has a solid foundation, making it a suitable platform for upgrades such as turbocharging, supercharging, and nitrous oxide injection. Moreover, the aftermarket support for this engine is vast, with many aftermarket parts available for both performance and reliability upgrades. This allows enthusiasts to tailor the engine to their specific needs and requirements, whether it's for street racing or track use.


Despite being a Japanese engine, the Mitsubishi Sirius engine is readily available in many parts of the world. It was used in a wide range of Mitsubishi vehicles, including the Lancer Evolution, Eclipse, Galant, and Mirage, among others. Additionally, it has been used in other brands, including Volvo, Saab, and Chrysler. This means that sourcing parts and components for the engine is relatively easy, making repairs and maintenance more accessible and affordable.

The Mitsubishi Sirius engine is a powerhouse in the JDM engine category, thanks to its advanced design, performance capability, reliability, and tuning potential. Whether you're a performance enthusiast or simply looking for a reliable engine to power your daily driver, the Mitsubishi Sirius engine is an excellent choice. Its lightweight design, advanced features, and vast aftermarket support make it a versatile and reliable engine for a wide range of vehicles and applications. When it comes to JDM engines, few can match the reputation of the Mitsubishi Sirius engine. And if you are looking to enhance the performance of your Mitsubishi, check out our stock!