Category: Engines

By on January 24, 2011

If you are the proud owner of a Porsche 997, which can slurp as much as 1.6 quarts of oil every 622 miles, you may be asking yourself “what do you mean am I ready?” But Porsche isn’t talking about upping the tolerated oil consumption numbers for its gas-powered flat-six engine… it’s considering adding a diesel engine to its US lineup, starting with an oil-burning version of its Panamera sports sedan and Cayenne SUV. With diesel versions of both of its two largest vehicles planned to debut at the Geneva Auto Show, Porsche’s Bernhard Maier tells Automotive News Europe [sub] that

We are discussing internally if we should introduce the Cayenne diesel in the U.S. this year. Also a Panamera diesel is an option.

Porsche has offered a 240 HP diesel version of its Cayenne in Europe since 2009, which gets over 30 MPG combined on the European test-cycle (non-EPA). And with 63 percent of Porsche’s sales last year coming from either the Cayenne or the Panamera last year, the firm is looking to those two nameplates for volume growth until its new products (like the next-gen 911 and a forthcoming “baby boxster”) hit dealerships. Offering diesels in the US may not create a huge surge in demand for Porsche’s most popular products, but it won’t hurt efforts to broaden their appeal.

By on January 19, 2011

VW’s 1.4 TSI “Twincharger” engine may well have been the most groundbreaking mass-market of the last 20 years, combining a supercharger and turbocharger to create a lag-free, forced-induction driving experience (a feat only Group B racers had previously attempted with any seriousness). Making either 120 HP or 158 HP in a Golf, the 1.4 TSI is rated on the Euro-cycle (non-EPA) at 6 liters per 100 km, or 39 MPG (please note, cross-cycle mileage comparisons are problematic). In the (smaller, lighter) 177 HP Polo GTI, it gets an even better 5.9l/100km. In short, it can be quite powerful, extremely efficient, and more importantly, it offers the flexibility to be tuned for a number of different applications. As a result, it won the International Engine Of The Year Award for 1.0-1.4 liter displacements four times running, and added “Best New Engine” in 2006, as well as “Green Engine Of The Year” and “International Engine Of The Year” in 2009.

And now, according to Autocar, the industry’s tortured tug-of-war between outstanding technical achievements and crushing profit-seeking grind will call the Twincharger its latest victim. The British mag reports

The company’s 1.4-litre engine, which mixes turbocharging and supercharging, is said to be too complex and expensive to produce.

Instead, VW engineers now believe that new turbocharging technology can achieve similar results at a much-reduced cost.

By on January 19, 2011

Lord love the car blogs. On the same day TTAC was fooled by a local TV report’s use of a forum photoshop, the rest of the autoblogosphere has gone bananas for an “alleged spec sheet” that is in fact pure speculation on the part of a member of the GM forum cheersandgears.com. Although the “document” in question “surfaced” in a forum poll entitled “2014 Cadillac ATS – Powertrain Predictions” (and was never presented as an official or “leaked” document), the High Gear Media Hive Mind proceeded to write up the “alleged spec sheet” as if they’d just found it in the RenCen’s executive washroom. Though unable to “confirm its authenticity,” the HGM Collective was able to determine that

the new Cadillac ATS-V will feature a 6.2-liter V-8 developing 470 horsepower and 428 pound-feet of torque. That’s more than the Mercedes-Benz C63 AMG, the bad boy of the current crop of executive sports sedans.

From there, it was inevitable that the big boys of the car blogging world would jump aboard the bandwagon, albeit with the decency to call the source a “speculative document” or “the rumormill.” Still, this document didn’t “surface”… it was put together by a fan who then asked the members of his forum to vote on whether they “love” or “hate” his speculative lineup. Meanwhile, in the rush to parrot the “news,” some basic considerations have been left out…

Read More >

By on January 18, 2011

Porsche’s planned “Baby Boxster” has been a divisive issue for fans of the Zuffenhausen brand: on the one hand it holds the promise of a pure, low-cost entry to the Porsche driving experience; on the other, it’s a neo-914, a Volkswagen first. And with VW and Audi versions planned as well, what on earth would be the point of Porsche offering a third version of a mid-mounted, inline-four-powered roadster? Luckily that’s not a problem Porsche will have to worry about, as the firm’s R&D boss has confirmed to Autocar that

We have a four-cylinder boxer engine under development.

Read More >

By on January 5, 2011

In response to our confusion over engine specs for the new 2011 Nissan Quest, Nissan’s product communication team wrote in to let us know that

At our media preview we received the new torque and hp figures during the middle of the event of 240 and 260 respectively but for some reason the rpm figures [in promotional materials] weren’t updated.

Thanks to Nissan’s prompt response, we can now officially report that the confusion is over. Engine power specs for the 2011 Nissan Quest are as follows

Horsepower : 260 hp @ 6000rpm

Torque (lb-ft) :  240 lb-ft @ 4400rpm

By on January 3, 2011


Going over Nissan’s specifications for the 2011 Quest minivan, I came across these for the engine, on both the media and the consumer site:

260 horsepower @ 5,200 rpm

240 foot-pounds @ 4,800 rpm

Some non-Nissan sites provide slightly different numbers:

253 horsepower @ 5,200 rpm

236 foot-pounds @ 4,800 rpm

So perhaps Nissan recently found a couple more horsepower then rounded both figures up to the nearest five.

Both sets of numbers instantly struck me as impossible.
Read More >

By on January 2, 2011

When I attended the launch of the Buick Regal, Buick’s product reps were anxious to talk all about the forthcoming Buick Regal GS, the high-performance version of the Opel Insignia-based sedan. At the time, the Buick Boyz were anxious for input; what, they asked, would enthusiasts prefer: a manual transmission or all-wheel drive. My answer: all of the above. Surely, I thought,  Buick would be bringing a rebadged version of the Opel Insignia OPC, with AWD and the GM 2.8T V6 from the Cadillac SRX Turbo and Saab 9-5 Aero. No, came  the answer. The 2.8T was not approved for use in a Buick. Stung by past oversharing between divisions, GM had decided that the 260-325 HP, Australian-built LP9 engine would be limited to applications in Caddys and Saabs. But now, it seems that GM may have penned some kind of deal with Saab, as GMInsideNews reports that the LP9 has been discontinued from its last remaining Cadillac application, the SRX Turbo.

Read More >

By on December 23, 2010

When Chrysler re-launched under Fiat, its Five Year Plan called for the Italian automaker’s dual-clutch transmissions (known at Fiat as Twin Clutch Transmission, or TCT) to make their way to the group’s D-segment models by the end of 2010. But here we are, at the end of 2010, and the Chrysler 200 and Dodge Intrepid have not been equipped with the fuel-saving transmissions. So what’s the deal? The only news on the topic comes from InsideLine which reports

By 2013 this TCT gearbox will be offered with all inline-4 and V6 engines from Fiat and Chrysler in North America. The aim is to have C-plus and D-segment cars like the Chrysler 200, V6-equipped Jeep models, and future Alfa Romeo Giulia lead the way with the TCT gearbox here.

But starting when? And with what vehicles? With Ford already offering dual-clutch transmissions in the Fiesta (with more to come), and Hyundai about to bet big on dual-clutch boxes next year, Chrysler is on pace to lag two years behind the market leaders. For a brand in Chrysler’s position, that’s a recipe for perennially playing catch-up on a crucial technology.

By on December 23, 2010

Is it a coincidence that, on the day the newswires fill up with reports of renewed cooperation between Aston Martin and Daimler’s Maybach brand, the British sportscar firm has released a video with the theme “one engine, one ethos”? After all, before Aston built a hideous concept on the Mercedes GL platform and Maybach asked Aston to develop a four-door concept, the assumption was that Aston wanted Mercedes engines to replace its aged Cologne-built V-12. Now, possibly motivated by Lotus’s engine flip-flop, it seems that Aston is taking pride in its elderly but unique 12-banger. Which seems like a smart move: high-end buyers often care more about pedigree than absolute performance, and being seen as an independent house rather than an engine customer shop certainly helps cultivate that image… even if it means sticking with an engine that’s based on a pair of Ford V6s. Especially when those two V6s sound so damn enchanting.

By on December 23, 2010


In this vivid demonstration of how steel differs from aluminum, we see how a junkyard-turbocharged Mitsubishi V6 eats one of its own pistons. Read More >

By on December 15, 2010

Lotus has perplexed and antagonized a number of auto enthusiasts by announcing its intent to expand beyond niche sportscars and become a global sport-luxe brand in the vein of Porsche and Ferrari. By announcing five future cars at once, Lotus made an audacious splash in the industry, and painted a giant target on its back. At the same time, Lotus’s initial plans called for the use of Toyota V8s and hybrid systems, leading some to wonder if Lotus was even being audacious enough. After all, assuming it could play with Porsche’s and Ferraris using only mass-market customer engines was somehow cravenly conservative to the point of being obnoxiously ballsy. Surely Lotus realizes that bespoke drivetrains are crucial to building a global sportscar brand? Well, apparently the Hethel boys didn’t get it… at least until their potential customers made an issue of it.

Read More >

By on November 30, 2010

Ford currently offers four vehicles with its EcoBoost-branded direct-injection, turbocharged V6: Taurus and Flex, and the Lincoln MKS and MKT. But what percentage of buyers do you think spends the $750 to $1,700 to upgrade to Ford’s engine technology of the future? Write down your guesses and hit the jump to see how close you were…

Read More >

By on November 23, 2010

When Autoweek asks the R&D boss at an alt-drivetrain leader like Toyota what the future of its powertrain development looks like, one tends to hope for something revelatory in his answer. Instead, we get

In the next five years, the general trend is downsizing of engines and the use of turbochargers. Another development will be direct fuel injection.
Gosh, really? So Toyota is going to follow automakers like Fiat and Hyundai (not to mention the entire industry) when it comes to spotting and adopting engine technologies like gas direct injection (GDI) and strategies like downsizing and turbocharging? With a late start on EVs as well as the suite of ICE-improving technologies, Toyota had better hope that hybrid sales stay strong… and that its hydrogen technology is affordable by 2015. Otherwise, there are plenty of other firms ready to lead the industry…
By on November 15, 2010

Conjecture that Lambo might be getting rid of the V12 in its flagship turns out to have been way off-base: in fact, Lamborghini has just announced specs for its first clean-sheet V12 since the 1964 350GT. Its 6.5 liter displacement is good for 700 high-revving horsepower (but “only” about 500 lb-ft of torque), thanks to aluminum-silicon alloy four-valve heads and an oversquare design. The new engine also comes with a new type of automated-manual gearbox that Lamborghini calls an “Independent Shifting Rod” transmission. We’ll publish more technical details as they become available, but for now let’s just take a moment to lap up the visual feast. New Lambo V12s don’t come around every day… in fact, given past practice and future emissions standards, this may well be the last of the breed.

By on November 12, 2010

Recently, I wrote about how Tata is reaping huge profits thanks to the acquisition of the “toxic” JLR brands. It was a huge gamble to buy them, but it paid off. Literally. Well, it appears that Tata’s growing profits are going to benefit not only Tata, but ironically, Ford, as well. Read More >

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