FA24 Engine

Specifications

The FA24 engine is a 2.4-liter 4-cylinder Boxer engine designed to deliver both strong performance and good efficiency. It has a lightweight all-aluminum block that helps reduce weight while staying durable. The engine uses dual overhead camshafts (DOHC) and 16 valves to improve airflow and combustion, and direct fuel injection helps deliver fuel more precisely for better power and efficiency. With a 94 mm bore and 86 mm stroke, the FA24 provides smooth and responsive power.

The turbocharged FA24F version produces around 260–271 horsepower and 258–277 lb-ft of torque, making it great for powerful performance and demanding driving conditions. The naturally aspirated FA24D, used in the Subaru GR86 and Toyota GR86, produces about 230 horsepower and offers quick throttle response and an engaging driving feel.

It uses Subaru’s Boxer engine design, the engine sits lower in the vehicle, which helps improve balance, handling, and stability. Whether in turbocharged or naturally aspirated form, the FA24 is built to provide reliable performance and an enjoyable driving experience. If you’re looking for a reliable used engine or transmission, Tagore Auto parts offers high-quality parts you can trust. Every part is carefully inspected and tested to ensure dependable performance, giving you confidence every time you drive.

Engine Variants

FA24F (Turbocharged)

The FA24F turbocharged engine is a modern powerhouse, found in the 2019+ Subaru Ascent, 2020+ Legacy and Outback, as well as the 2022+ Subaru WRX. Designed with a bottom-mounted turbocharger, the FA24F delivers impressive torque and power throughout the RPM range, making it well-suited for both daily-driving SUVs and performance-focused vehicles. Its horizontally opposed Boxer layout lowers the vehicle’s center of gravity, enhancing stability and handling while maintaining smooth, balanced engine operation. The all-aluminum construction, direct fuel injection, and dual overhead camshafts work in concert to provide efficient combustion, responsive throttle, and long-term reliability. Drivers can enjoy strong mid-range torque, effortless overtaking, and confident acceleration in a variety of driving conditions, from highway cruising to spirited cornering.

FA24D (Naturally Aspirated)

The FA24D naturally aspirated engine powers the 2022+ Subaru BRZ and Toyota GR86, offering a pure and engaging driving experience. This engine utilizes Toyota’s advanced D-4S fuel injection system, which combines direct and port injection for precise fuel delivery, efficient combustion, and reduced knock. With a 12.5:1 compression ratio, the FA24D focuses on smooth, linear power delivery and a lower, more manageable torque curve compared to its predecessor, enhancing control and predictability during spirited driving.

The Boxer engine layout contributes to a low center of gravity, improving handling and cornering precision, while the lightweight aluminum block ensures durability without compromising performance. Drivers experience a connected, responsive throttle feel, perfect for enthusiasts who value balance, agility, and driver engagement over raw horsepower.

Frequently Asked Questions