The Cayman GTS is one of just a handful of contemporary Porsches available with a naturally aspirated flat-six, an engine format central to the iconography of the brand. The others? The 911 GT3, the Cayman GT4 and 718 Spyder, and, of course, the 718 Boxster GTS launching in conjunction with its coupe cousin. Storied company indeed …
It shares its displacement with the 494-hp GT3 engine, but the GTS flat-six is not related to that car’s near-race-spec powerplant, however, not the least because it simply won’t fit in the 718 mid-engine chassis, and because it would be simply too expensive for a $100,000 sports car. Instead, the Cayman GTS, like the Cayman GT4, is powered by what is essentially a bored and stroked 992-series engine, minus the turbochargers. Peak power is 394 hp at 7,000 rpm, with peak torque of 309 lb-ft available between 5,000 and 6,500 rpm. In the Cayman GT4 the engine makes 20 hp more, while the torque output is unchanged. The extra power is all in the engine management system mapping.
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