1969 Porsche 911 on 2040-cars

Auto blog

Porsche testing four-cylinder Boxster at the N?rburgring

Porsche recently introduced a four-cylinder version of the new Macan for markets outside of North America, carrying Zuffenhausen's first four-pot since the 968 ended its production run the better part of two decades ago. But you can bet the compact crossover won't be the only Porsche to get the four banger before all's said and done. These spy shots, we're told, are evidence of just that.
Spotted undergoing testing at the Nürburgring (where else), this modified Boxster, our spy photographers tell us, sounds more like a four-cylinder engine than the flat six that's powered (in displacements ranging from 2.5 liters to 3.4) every version of the little roadster since its introduction in 1996, the year after the last four-cylinder Porsche ended production.
The test mule is also wearing modified wheel arches and aerodynamic aids under the bumpers, front and rear. Just what they're doing there we're not sure, but we'll probably find out sooner or later.

The 2017 Porsche 911 RSR goes mid-engine, purists be damned

Porsche unveiled its World Endurance Championship and IMSA WeatherTech Championship competitor with the 2017 911 RSR. And this 911 is different from the rest, as the 4.0-liter flat-six engine powering this beast is in front of the rear axle, not behind it. That's right, this 24 Hours of Le Mans competitor ditches the iconic rear-engine layout. Porsche isn't talking specifics on how exactly things are arranged back there. The engine is new, now based on the 991 911's block instead of the previous Mezger motor that's been used for years. The transmission design is new as well – it would have to be to accommodate the new location relative to the engine. The racecar has been engineered to meet the LM-GTE class, where it will go up against other mid-engine cars like the Ford GT and Ferrari 488 GTE. Moving the engine to the middle has given Porsche the ability to fit the 911 RSR with massive bits of aero, like the humongous rear diffuser that looks like it would be more at home on a machine of war. The only thing that can compete with the diffuser for size is the top-mounted rear wing, which shares a similar design to the one found on the 919 Hybrid. Going back to the engine, the direct-injected boxer motor, depending on the size of the restrictor, generates as much as 510 horsepower and sends all of its fury to the rear wheels. The engine is paired to a six-speed sequential gearbox, which drivers can employ through paddles on the steering wheel. The new engine doesn't have a lot of weight to push around as the 911 RSR, as required by regulations, weighs 2,740 pounds. Speaking of weight, the engine layout isn't the only change for the 911 RSR. For 2017, the car ditches its steel body for one that's made out of carbon fiber. The body attaches to the chassis via quick-release fasteners, making the vehicle easier to service as exterior elements can be removed with minimal effort. The racecar also gets a radar-based collision system – aptly named the "Collision Avoid System" – which is meant to limit the 911 RSR's encounters with faster LMP prototypes. Only time will tell if the new layout and aerodynamic components help the 911 RSR beat its competition. But there will be plenty of opportunities to see the racecar in action as Porsche plans to run the 911 RSR in 19 races during the 2017 season, the first of which will take place at the IMSA opener on January 28th at Daytona, where the racecar will make its track day debut.

Porsche says turbo'd 911 engines will still be revvy

Porsche fans really, really don't like change. Remember when the 911 moved away from air-cooled engines? Now, as the company prepares to move the vast majority of the 911 line away from naturally aspirated powerplants, one of the brand's highest ranking officials is speaking out to prevent a similar outcry. Dr. Heinz-Jakob Neusser, the head of powertrain development for the Volkswagen Group and a board member of the VW brand, told Car that turbocharging won't take away from the rev-happy nature of Porsche's current engines. "Turbocharging is possible with higher revs – it's not true to say that turbocharged engines must stop at 6000rpm," Neusser told Car at the 2015 New York Auto Show. "That's not true... If you look at McLaren, they already have in production turbo engines with high revs." With turbocharged engines, Nuesser explains, there's no need to go for a super high redline, because engineers are trying to spread the torque over the entire rev range. "It makes no sense to go to 10,000 rpm with a turbocharged engine," Neusser told Car. The other big concern that comes with the switch to turbocharging focuses on the 911's iconic flat-six exhaust note. Maintaining the car's well-known acoustic character shouldn't be an issue, Neusser said. "Noise is not a problem," adding that the Volkswagen Group knows a thing or two about building sweet-sounding turbos. "Look at the 911 Turbo; it has an extremely expressive noise today – that is not a problem. At the other end of the scale, the Golf R has it too," Neusser told Car. "You won't miss character with turbos, I promise." According to Car, the new turbocharged engines will arrive later this year at the 2015 Frankfurt Motor Show, as part of the current 911's facelift. Featured Gallery Porsche 911 Coupe: Spy Shots View 9 Photos News Source: CarImage Credit: CarPix Frankfurt Motor Show Porsche Performance turbocharging volkswagen group