The 3.4 in the 981 Boxster S delivers 315hp, 266 lb-ft. The 3.4 in the 981 Cayman S delivers 325hp, 273 lb-ft. The 3.4 in the 991 delivers 350hp, 287 lb-ft. Does anyone know what Porsche adjusts to get more power out of this engine in 991 guise? Can it be as "simple" as an ECU swap?
usually it's ECU/intake/exhaust differences. you see the same thing with the same engines in various VW/Audis, Mercedes, BMWs, etc.
I would hazard a (wild-ass) guess at engine mapping. Take MINIs for example, 2001-2006 the naturally aspirated MINIs (the ONE and the Cooper) were identical in every way except for the engine mapping. Above 4,000 rpm, the ONE only allows 50% throttle body opening, thus limiting the performance in the upper rev range. ONE: 90bhp Cooper: 118bhp Without making ANY changes to the mechanicals, you can remap either a ONE or a Cooper to ~125bhp. Changing intake and exhaust, people on the MINI forums have gotten as much as 135-140bhp from the naturally aspirated engine. After porting and what not (crazy folks), people have seen 150-160bhp. The supercharged MINI Cooper S is 163bhp (2001-2004) and 170bhp (2004-2006). Of course, I could be wrong and Porsche could be using different internals. I'm only guessing without any technical knowledge of Porsches. All the best, Andrew.
Thanks, all! I forget which variant of the GT-R boasts of having a little more power than the more mainstream model(s). Ends up all Nissan does is set aside otherwise standard engines that register higher than expected numbers during their dyno break-in.
