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Porsche four-cylinder details emerge

 Porsche four-cylinder details emerge
2012 Porsche Boxster spy photos, Nurburgring, Germany 23.04.2010 / Copyright: SB-Medien

Turbocharged variant could offer 360 hp

New details are starting to emerge about Porsche's four-cylinder engine, which is slated to be launched in an entry-level roadster.

In an interview with Autocar, Wolfgang Durheimer - the outgoing head of research and development - confirmed the engine is under development and could be used in the 2012 Boxster and Cayman. More interestingly, he went on to say it "could be applied, if necessary, to the 911." While this sounds like blasphemy, he added "Our decision is, on the 911 side, we'll stay with the flat [six]. But there are opportunities for the future."

Expected to displace 2.5-liters, the four-cylinder engine will reportedly be unique to Porsche and available in turbocharged guise. While specifications are still pending, the latter variant could produce upwards of 360 hp (268 kW / 365 PS).

In similar news today BMW has announced their all-new 2.0 liter turbocharged 4-cylinder petrol/gasoline engine in the X1 xDrive28.

Source: Autocar

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Comments (14)

 Sacto8780 Sacto8780
My guess is that this new engine--most likely a Flat-4 design--will be WAY better than the Subaru's Flat-4 and Flat-6 engines, mostly because it will sport features like variable valve timing on both the intake and exhaust sides and direct fuel injection. As such, the engine will get pretty decent fuel economy.
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January 20, 2011 9:17 am
 ricer8 ricer8
Don't know much about the power delivery on the Sti. My turbo 4 is the gti with a flashed ecu. What I mean by peaky is the torque is radically diff at 3500 than at 2500. I hear you on lightweight. I have s2000 as track car with r compounds and camber kit. Nothing gets away from me in the tight stuff. The engine in the s2000 is also peaky but it has so little torque it does not matter. What's not peaky is a BMW online 6. The smoothest motor I have driven with a flat torque curve
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January 19, 2011 6:24 pm
 me109a me109a
Highway milage can be atributed to better aerodynamics on the Phorsche. Not that I care all that much about milage in a performance car. The lower weight of a four cyl would help with the balance of the car in my opinion. 911s are a bit tail heavy. I know most Porche fans will settle for nothing less than a 6 cyl as most Corvette fans (me included) would never settle for less than a push rod V8. I don't know what you mean by "peaky" the power in my STi feels pretty linear and I have tracked it 30-40 times. NA Porsches kill me on the straights and big sweepers, but I destroy them on the trail brake high to low speed entries, tight esses, and hilly bits where you unload the suspension. I'm not that good of a driver so it's godda be the car (F engine AWD vs R engine AWD). If you are a great driver R engine RWD may be the ticket but I would likely stuff that b*tch in the fence.
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January 19, 2011 5:28 pm
 ricer8 ricer8
Not to mention the down side of such a motor. They tend to be very "peaky" in there power delivery. Entertaining but not confidence inspiring. Currently I have a 2.0 L turbo making about 268hp as my daily driver. Again it's entertaining but I would hate to have the boost come on mid corner when trying to hustle it around a track. When you get back behind the wheel of something with more displacement and a linear power curve it's wonderful
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January 19, 2011 3:46 pm
 GS GS
WRX STi: 2.5L 4cyl, 305HP, City 17mpg, Highway 23 997 Carrera 4S: 3.8L 6cyl, 385HP, City 17mpg, Highway 25mpg Both AWD, both around 3200-3300lbs curb weight. Except one car has 100HP more, and better uses less fuel. Yeeeah... Subaru ain't that smart. Check out the worst offender, the Evo.. that thing uses more fuel than a 7.0L Corvette Z06.
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January 19, 2011 3:15 pm
 GS GS
me109a: And Subaru's 4cyl boxer also happens to be one of the worst gas-guzzlers ever made (next to the Evo). Nice P.R., but at the end of hte day, this only belongs inside a Boxster or even a lesser model. Because reality is, their boxer-6 actually is pretty efficient for a high performance engine.
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January 19, 2011 3:09 pm
 me109a me109a
A properly balanced 4 cylinder turbo (hopfulley boxer) would be great for the 911. Less weight hanging out behind the rear axle can only enhance braking balance, maybe allow trail braking without a bunch of electronic interference. Look what Subaru has done with a 4 cyl boxer. 305 hp / 300 ft-lb torque on pump 91. And Formula 1 will be 4 cyl turbos soon, in the past they have gotten 900+ hp from 4 cyl turbos. Good and Good IMHO.
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January 19, 2011 2:58 pm
 Zonda Addict Zonda Addict
For the Boxster and Cayman. Understood. But for the 911?!?!?! that's just wrong...
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January 19, 2011 2:16 pm
 Microice Microice
Will Boxster become smaller and more of a TT rival? Or is this the engine of the rumoured new entry level model?
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January 19, 2011 1:33 pm
 tuga tuga
A 4 cylinder 911 wouldn't be blasfemy, it would be a 912. It just wouldn't make much sense now that they have the Cayman below the 911 in their line-up.
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January 19, 2011 1:25 pm