The Civic Si in its current generation uses a 1.5-liter turbocharged inline-4 engine, producing about 200 horsepower and 192 lb-ft of torque, paired exclusively with a six-speed manual transmission. This setup emphasizes sporty responsiveness and driving engagement rather than maximum efficiency.
Engine specifications
Here are the core technical facts about the engine powering the Civic Si today.
- Engine type: Turbocharged 1.5-liter inline-4 with direct injection
- Displacement: ~1.5 liters (approximately 1,498 cc)
- Valvetrain: i-VTEC variable timing
- Power output: ~200 horsepower
- Torque: ~192 lb-ft
- Transmission: 6-speed manual
- Drivetrain: Front-wheel drive with a limited-slip differential
These specifications reflect Honda’s focus on a responsive, character-rich engine that suits the Si’s light, nimble chassis and sporty ambitions.
Driving characteristics and implications
In practice, the turbocharged inline-4 delivers strong mid-range torque and a lively high-end rush, which complements the Civic Si’s compact footprint and agile handling. The standard six-speed manual is central to the driving experience, providing precise shifts and a tactile connection to the road, aided by the limited-slip differential to improve grip through corners.
- Transmission is manual-only in the current Si lineup, with no automatic option.
- The turbo delivers robust torque without excessive lag, enhancing everyday driveability and fast-lap potential.
- i-VTEC manages valve timing to balance efficiency and performance across the rev range.
- Engine tuning prioritizes engaging performance and predictability over peak fuel economy.
For enthusiasts, these traits translate into a driving experience that emphasizes involvement, precision, and a sense of immediacy when pressing the accelerator.
Notes on variations and markets
The engine details described here pertain to the Civic Si sold in North America for the current generation. While core architecture remains consistent, small specification differences can occur by year or market.
Summary
The Civic Si is powered by a turbocharged 1.5-liter inline-4 with direct injection and i-VTEC, delivering around 200 horsepower and 192 lb-ft of torque. Paired exclusively with a six-speed manual and a limited-slip rear drivetrain feature, it emphasizes driver engagement, responsive torque delivery, and a sporty, compact package that suits both daily driving and spirited cornering. This combination remains a central part of the Si’s identity in the latest generation.