The 2007 Mazda CX-7 is powered by a 2.3-liter turbocharged inline-four engine, specifically Mazda’s MZR 2.3 DISI Turbo, delivering about 244 horsepower and 258 lb-ft of torque.
In that model year, the CX-7 offered this turbocharged four as its sole gasoline powerplant, pairing it with a six-speed automatic transmission (with manual shift mode) and, depending on the trim, all-wheel drive. The engine is part of Mazda’s MZR family and features direct injection (DISI) and turbocharging to balance performance with practicality in a mid-size crossover package.
Engine type and specifications
Key technical specifications for the 2.3-liter DISI Turbo engine in the 2007 CX-7 include the following:
- Engine type: 2.3-liter inline-4 turbocharged (DISI)
- Valvetrain: Dual overhead cam (DOHC), 4 valves per cylinder
- Fuel system: Direct injection (DISI)
- Boost and turbo: Turbocharged with intercooler
- Power output: ~244 horsepower (about 182 kW) at around 6,000 rpm
- Torque: ~258 lb-ft (approximately 350 Nm) from about 2,000 to 5,000 rpm
- Recommended fuel: Premium unleaded gasoline for optimal performance
These specifications illustrate how Mazda aimed to blend brisk acceleration with everyday usability in the CX-7’s first release year, leveraging a turbocharged four-cylinder rather than a V6.
Engine architecture and context
Engine family and design
The 2.3-liter DISI Turbo belongs to Mazda’s MZR family, a line of inline-4 engines used across several models in the 2000s and 2010s. The DISI designation indicates direct fuel injection, which helps improve power and efficiency when paired with turbocharging. In the CX-7, this engine was tuned for torque-rich performance suitable for a mid-size crossover with available all-wheel drive.
Fuel and maintenance considerations
For owners and buyers, the engine’s turbocharged design means attention to fuel quality and regular turbo-related maintenance is advised. Using premium gasoline as recommended helps maintain peak performance and throttle response, while routine care—such as timely oil changes and air/fuel system checks—supports long-term reliability for this turbocharged Mazda powerplant.
Summary
The 2007 Mazda CX-7 relies on a single, well-known engine option: a 2.3-liter turbocharged inline-4 from Mazda’s MZR DISI family. With about 244 hp and 258 lb-ft of torque, direct injection, and a turbocharger, it provided a balance of sporty acceleration and practical SUV usability, paired with a six-speed automatic and optional all-wheel drive.