February 7, 2013
Like previous Cayman models, one of two flat-six engines will propel the two-seater, depending on shopper requests. Standard Cayman models get a 2.7L flat six with 275 horsepower. Though slightly downsized compared to the 2.9L unit in the last car, this new, smaller flat-six is more powerful, and will dispense with 0–100 km/h in a tick over 5 seconds. Higher-performing Cayman S models get a 3.4L flat six, making 325 horsepower. The 3.4L engine in the Cayman S uses an airflow management system that boosts torque at low rpm while increasing top-end power and providing a uniform torque curve. Expect 0–100 km/h in as little as 4.4 seconds.
Both engines utilize variable valve timing, a 12.5 to 1 compression ratio and work best when spinning fast. Redline for both powerplants is just shy of 8,000 revs. Drivers can experience the power output by rowing their own gears with a six-speed manual transmission, which features a dual-mass flywheel for enhanced smoothness and drivability.
2014 Porsche Cayman. Click image to enlarge
Porsche’s seven-speed PDK dual-clutch transmission is, additionally, available on each engine—allowing for fully automatic shifting, or the firing off of instant, semi-automatic gear changes via steering wheel–mounted paddles.
Both powerplants feature numerous advanced implements designed to boost fuel efficiency, too. Direct injection, which sprays fuel directly into the combustion at extreme pressures, enables more energy to be extracted from every molecule of fuel, and lets engineers safely run a higher, more efficient compression ratio. An auto start/stop function is also on board, virtually eliminating fuel consumption associated with idling.
The Cayman’s alternator is intelligent, drawing less mechanical energy from the drive belt when the battery is fully charged, which helps save fuel, too. The alternator prioritizes battery charging most heavily during coasting and braking, effectively favoring the use of vehicle momentum, rather than gasoline, to generate electricity.
Further, intelligent control of the engine and transmission cooling systems gets them up to temperature (and their lubricants up to operating viscosity) more quickly, which improves efficiency as well. Finally, a ‘coasting’ feature built into the PDK gearbox decouples it from the engine in certain situations for further fuel savings. When drive power is required, coasting mode is disengaged instantly.
Other changes designed to increase driving pleasure and performance include an enhanced Porsche Active Suspension System (PASM), with more sensors for more finely tuned system control. A new electromechanical steering system is also on board. The braking system has also been given redesigned calipers, improved cooling and a new brake-pad design. Six-piston calipers come with the optional Porsche Ceramic Composite Brake system, too.
Look for the new 2014 Cayman and Cayman S at Porsche dealers this spring.
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