MINI has announced the introduction of a new engine for the John Cooper Works family. Even though the new twin-scroll turbo engine develops much the same power and torque output levels as the engine it replaces, its cylinder block and bearing mounts are now made from aluminium which, join forces with reinforced pistons, a particularly high-strength cylinder head and low-weight crankshaft. The exhaust valves are sodium-filled to help with the heat dissipation requirements of a turbocharged engine and the intake camshaft features infinite phase adjustment. This new engine is coupled with a 6 speed manual transmission as standard although a six-speed automatic gearbox can now be fitted as an option to all models in the JCW line-up.
The new engine is installed in the MINI Cooper, Clubman, Convertible, Coupé and Roadster versions of the John Cooper Works range and is based on the unit in the standard MINI Cooper S which employs a twin-scroll turbocharger, petrol direct injection and variable valve control – based on the BMW Group’s VALVETRONIC system – in the pursuit of the best balance between throttle responsiveness and efficiency. The maximum output of the engine is 155 kW/211 hp at 6,000 rpm, while peak torque of 260 Newton metres (192 lb-ft) is on tap between 1,850 and 5,600 rpm. The overboost function allows this figure to be raised to 280 Newton metres (207 lb-ft) for a short time between 2,000 and 5,200 rpm.
The same engine with a slightly higher output can be found in the MINI John Cooper Works Countryman. Its 160 kW/218 hp is channelled through an all-wheel-drive system with peak torque of 280 Newton metres (207 lb-ft) being available between 1,900 and 5,600 rpm.
Check our photo gallery and BMW’s press release after the jump!
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