Hoovey689

iTrader: (16)

Porsche reportedly working on new turbocharged flat-four boxer engine?

These days, we've seen just about every automaker dropping cylinders in an effort to appease tightening fuel economy and emission standards – and Porsche is no exception. Nearly three years after introducing an all-new V6 powerplant under the front hood of its Panamera sedan (launched with a range of V8 engines) comes word that Porsche is working on an all-new turbocharged flat-four boxer to replace the flat-six engines mid-mounted in its Cayman and Boxster models.

Specifics have yet to be learned, but reports say the engine is a derivative of the current 3.8-liter six (shown above) found under the rear decklid of the Carrera S, yet with two fewer cylinders. Fitted with a turbocharger, direct-injection and the automaker's VarioCam Plus, the new all-aluminum 2.5-liter flat-four will likely develop upwards of 350 horsepower and 360 pound-feet of torque. Redline should be about 7,500 rpm. Initial indications say that Porsche will only offer the new engine with its seven-speed PDK dual-clutch automatic, tuned to take advantage of the low-end torque, but a traditional six-speed manual gearbox has not been ruled out. Despite the loss of two cylinders, enthusiasts will likely embrace the new engine as it promises to be lighter, more fuel efficient and more powerful than the 2.7-liter and 3.4-liter sixes in the Cayman/Boxster today.

Even though Porsche has been using Volkswagen Group engines for years (e.g., Cayenne V6, Cayenne Diesel and upcoming Macan), all indications are that the new flat-four will not be shared. Instead, it will be kept in-house for the automaker's sports cars and possible future fitment in an entry-level 911.

http://www.autoblog.com/2013/04/10/p...lat-four-boxe/

JessePS

This should be interesting

Harbinger

They couldn't have just partnered with Subaru and saved themselves the deveopment costs?

Hoovey689

iTrader: (16)

Porsche associating with a Japanese company?! Blasphemy they say

TerrySmith

What "enthusiasts" would embrace is a turbo on the 3.4-liter six to get 400+ HP and a manual transmission for their mid-engine Caymans.

cino

iTrader: (1)

I believe that Porsche Boxer is more technological advanced than Subie Boxer, but since Subie learned so much how to implement DI in their Boxer from Toyota, we will have to see if Subie can catch up with Porsche in engine tech.

balMaster

Interesting that Porsche is going for 4 cylinders with turbo.
I like 4 cylinders with turbo, but I can't afford Porsche.
Subaru Legacy 2.0GT DIT (Dual Injection Turbo) in Japan has 300PS.
If they put that in the new WRX..., I can afford that.