The 2007 Honda Civic Si is powered by a 2.0-liter inline-four i-VTEC engine, code-named the K20Z3, delivering about 197 horsepower and 139 lb-ft of torque.
Engine specifications
The following figures define the core engine that gave the Si its high-revving character and spirited acceleration.
- Engine: 2.0-liter inline-4 i-VTEC (K20Z3)
- Power: 197 hp at 7,000 rpm
- Torque: 139 lb-ft at 6,500 rpm
- Redline: approximately 8,000 rpm
- Transmission: 6-speed manual (front-wheel drive)
Taken together, these specs describe the heart of the 2007 Civic Si and explain its reputation as a compact, performance-oriented model.
Technology and driving experience
The K20Z3 uses Honda's i-VTEC variable valve timing to optimize both low-end response and high-end power. Paired with a close-ratio 6-speed manual, the engine encourages active, rev-friendly driving and strong acceleration typical of the Si trim.
Key technology features
i-VTEC allows adjustments of valve timing to improve efficiency and top-end power, while a direct-fuel-injection system helps the engine breathe at all RPM. The Si’s drivetrain is front-wheel drive, with a sport-tuned chassis to match the engine’s performance.
Summary
For the 2007 Civic Si, Honda paired a high-revving 2.0L i-VTEC engine (K20Z3) with a 6-speed manual to deliver a sporty driving experience in a compact package. The engine’s 197 hp and 139 lb-ft of torque, along with an 8,000 rpm redline, defined the Si’s character in that model year.