• Jan 8, 2010
Chrysler's New Four- and Six-Cylinder Engines – Click above for high-res image gallery

If Chrysler is looking to gain any one thing from its new parents at Fiat, it's engine technology. Specifically, the Pentastar will be enlisting its Italian overlords to supply direct injection systems, turbocharging, and Fiat's Multiair variable valve technology, along with new dual-clutch transmissions. Chrysler claims all of this technology is going to boost the overall fuel-efficiency of its vehicles by 25 percent between now and 2014, with over 80 percent of Chrysler, Dodge and Jeep vehicles getting new mills in the process.

To that end, Chrysler has finally announced the details of its new powertrain lineup, including two small-displacement four-cylinders and a new V6.

On the four-pot front, Chrysler will begin fitting one of two new 1.4-liter four-cylinder engines on future models: a naturally aspirated version kicking out 100 horsepower (at 6,750 rpm) and 95 pound-feet of torque (at 4,250 rpm), as well as a turbocharged variant that churns out 170 hp (at 6,750 rpm) and 170 lb-ft of twist (at 3,000 rpm). In keeping with its Italian ancestry, Chrysler has dubbed these new mills "Fully Integrated Robotized Engines" and each features Fully Variable-valve Actuation (FVVA) – what we've come to know as Multiair across the Atlantic. Chrysler maintains that both engines offer a 10 percent reduction in emissions and fuel consumption while putting out between 10- to 15-percent more power than its outgoing mills.

A larger displacement, 2.4-liter inline four with Multiair will also come to market, putting out 190 hp (at 6,000 rpm) and 175 lb.-ft of torque (at 4,200 rpm), and along with the new trio of four-cylinders, Chrysler announced specs on the new Pentastar V6. Displacing 3.6 liters and putting out 280 hp (at 6,400 rpm) and 260 lb-ft of torque (at 4,400 rpm), the new six will see similar fuel consumption and emissions reductions and will be fitted to the all-new 2011 Jeep Grand Cherokee later this year.

In 2010, Chrysler says that it will begin to equip its mid-size vehicles (D-segment) with a new six-speed Dual Dry Clutch Transmission (DDCT), that improves fuel economy and can handle up to 260 lb-ft of torque. Expect to see the new tranny making its way into the next-generation Sebring and Chrysler's new crossovers.

And if all that wasn't enough, Chrysler announced its intentions to bring a hybrid Ram 1500 market this year, along with working with the Department of Energy to build a small test fleet of plug-in Rams and minivans, including an electric delivery van for fleet use in 2011 or 2012. All the details are available in the press release after the jump.



[Source: Chrysler]
Show full PR text
Chrysler Group LLC Transforms Powertrain Strategy

Auburn Hills, Mich., Jan 7, 2010 - Chrysler Group LLC is revamping its powertrain lineup with technology that will contribute to an overall fuel-efficiency improvement of more than 25 percent during the 2010-2014 period.
As a result of the new alliance with Fiat, the company's five-year business plan has an uncompromising powertrain offensive, including a progressive vehicle electrification strategy.

"Chrysler Group will attain leadership by rapidly applying Fiat Powertrain technologies, such as Multiair, direct injection, turbocharging and transmission systems to its powertrain portfolio," said Paolo Ferrero, Senior Vice President, Chrysler Powertrain. "By 2014 calendar year, more than 80 percent of Chrysler Group's current powertrain lineup will undergo a complete makeover."

In order to combine complementary strengths, Fiat Powertrain is the global center of expertise for diesel technology and small displacement gas engines (less than or equal to 1.8 liters). Chrysler Powertrain is the global center of expertise for large displacement gasoline engines and vehicle electrification technology. The primary goal is leveraging combined powertrain and vehicle knowledge to achieve best-in-class fuel economy for both companies.

New Four-cylinder Engines
Four-cylinder engine options are being expanded at Chrysler Group with the introduction of Fiat Powertrain's 1.4-liter, in-line four-cylinder Fully Integrated Robotized Engine (FIRE) featuring Multiair. In the early 1970s, the use of robotics in assembly plants was not common. The term "FIRE" came into existence when Fiat integrated the use of robotics in the production process of manufacturing plants. Although mechanized assembly is common today, the brand name FIRE has remained with Fiat's powertrain lineup.

Two variations of the engine will be available, naturally aspirated and turbo. Both versions of the 1.4-liter FIRE feature four valves per cylinder and incorporate state-of-the-art technology for Fully Variable-valve Actuation (FVVA), also known as Multiair. Fiat's Multiair technology significantly reduces emissions, while improving fuel economy and power. This sophisticated electro-hydraulic variable-valve actuation technology delivers an increase in power up to 10 percent, an improvement in low rpm torque up to 15 percent and a reduction in fuel consumption and emissions up to 10 percent when compared with similar engines without the technology. The Multiair system is based on a series of Fiat Powertrain patents related to hardware, combustion strategies and controls that allow for full control of the lift and timing of engine valves, independently on each cylinder and during each single engine stroke. Well suited for a small car application, the first North American vehicle to feature the 1.4-liter FIRE with Multiair is the Fiat 500.

Specifications
1.4-liter I-4 FIRE with Multiair
100 horsepower (75 kW) at 6,750 rpm
95 lb.-ft. (129 N•m) of torque at 4,250 rpm

1.4-liter I-4 FIRE Turbo with Multiair
170 horsepower (128 kW) at 6,750 rpm
170 lb.-ft. (231 N•m) of torque at 3,000 rpm

Another addition to the Chrysler Powertrain lineup is the new 2.4-liter, in-line four-cylinder World Gas Engine (WGE) with Multiair. This new engine stands as an example of Chrysler Powertrain's rapid integration of Fiat technology. Chrysler Powertrain's 2.4-liter WGE features Fiat's Multiair technology that will improve fuel economy and specific-power output. In comparison with its predecessor, the 2.4-liter with Multiair delivers an increase in power, an improvement in low rpm torque and a reduction in fuel consumption and emissions output. A turbo version of the 2.4-liter WGE also is under development for future applications.

Specifications
2.4-liter I-4 World Gas Engine with Multiair
190 horsepower (142 kW) at 6,000 rpm (estimated)
175 lb.-ft. (237 N•m) of torque at 4,200 rpm (estimated)

All-new V-6 Pentastar Engine
Chrysler Powertrain will streamline its V-6 gas engine offerings from six options to the new fuel-efficient, state-of-the-art 3.6-liter V-6 Pentastar engine. The first application of this engine will be in the all-new 2011 Jeep® Grand Cherokee, due out in the second quarter this year. Chrysler Group's all-new Pentastar V-6 is the most advanced six-cylinder engine in the history of Chrysler, with an optimized integration of select technologies that deliver refinement, fuel efficiency and performance. The Pentastar delivers a fuel efficiency improvement of up to 8 percent on average when compared with previous Chrysler Group V-6 engines and delivers 90 percent of its available torque from 1800-6400 rpm. In the all-new 2011 Jeep® Grand Cherokee, the 3.6-liter Pentastar V-6 engine offers an increase of 33 percent in horsepower and an 11 percent improvement in torque over its predecessor. The Pentastar V-6 is designed to use technologies such as Multiair, direct-injection and turbocharging for future applications.

Specifications
3.6-liter V-6 Pentastar
280 horsepower (209 kW) at 6,400 rpm
260 lb.-ft. (353 N•m) of torque at 4,400 rpm

New Transmission Technology
Beginning with mid-size D-segment cars in 2010, Chrysler Powertrain will migrate Fiat's six-speed Dual Dry Clutch Transmission (DDCT) to Chrysler Group vehicles. The DDCT delivers a 10 percent improvement in fuel efficiency while enhancing performance. It transitions seamlessly from economy to sport mode when desired and can handle up to 260 lb.-ft of torque (350 N•m). The DDCT uses the best characteristics from both a manual transmission and an automatic transmission. This combination delivers the efficient performance of a locked gear mechanical path, but maintains the drivability and comfort of an automatic transmission.

Vehicle Electrification

In November 2009, Chrysler Group revealed a new engineering organization model showing the company as the center of competence for vehicle electrification efforts for Chrysler Group and Fiat Group. The resources previously spread in different electrification development groups have been assigned to the powertrain and vehicle engineering mainstream-a clear sign of how the Chrysler Group intends to move from research and development to vehicle production.

As part of its five-year plan, Chrysler Group currently is developing a Ram 1500 with traditional hybrid capability for 2010. The company also continues its plan with the Department of Energy to build a small test fleet of plug-in hybrid Ram 1500 pickup trucks and minivans. Because pure electric vehicles lend themselves to commercial applications, Chrysler Group is considering a small electric delivery van application for 2011-2012 with an appropriate business case.

The company has a significant amount of resources allocated toward vehicle electrification and affirms a commitment by continuing to add talent in this leading-edge technology arena.


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    • 1 Second Ago
  • 35 Comments
      • 5 Years Ago
      1.4L turbo with 170HP
      2.4L with 190HP
      3.6L V6 with 280HP...

      Looks like Chrysler is finally getting some decent power.
      A new V6 was more than overdue to replace the much aging 2.7L, 3.5L and 4.0L.

      So far so good... lets see what else they bring to the game.
        • 5 Years Ago
        the 3.6 has 280 hp naturally. they are talking of putting turbos in for a 360hp version of the 3.6
        • 5 Years Ago
        I like that new Fiat's six-speed Dual Dry Clutch Transmission (DDCT)
      • 5 Years Ago
      OMG what is that, a crankshaft? GROSS!
      • 5 Years Ago
      Direct injection > multiair.
        • 5 Years Ago
        Some models are Multiair, others use DI. Eventually, we'll see both schemes employed.
      • 5 Years Ago
      FIRE is Fiat nomenclature that they’ve been using for years now.
      http://www.fiatgroup.com/en-us/innovation/elasis_activities/fire/Pages/default.aspx
        • 5 Years Ago
        Like 15 or 20 years.
        • 5 Years Ago
        Rick,
        Yes,... I picked a pretty limiting link to describe Fiat's use of the term (no definition)... I think FIRE is so old that SEAT actually used these engines at some point.

        Sean,
        Magneto-rheostatic valve control? Intriguing...
      • 5 Years Ago
      I hope I can get the bigger one in the 500 when they start selling it here.
      the 2.4 with 190 hp would be great, and then make an Abarth version with a stronger bottom end - and then Esse Esse chip it.
      Could bring in around 230 hp in that little 500!
        • 5 Years Ago
        U R probably right.
        I bet the turbo will be their top offering for that platform, and they will offer some 3 cyl plants as well.
        • 5 Years Ago
        There's a TWIN arriving this year that gives 105hp and incredible economy. It seems they will be using the 'old' four in the US though. Perhaps Fiat believes the US market would laugh at a 0.9 litre 105 hp twin cylinder engine? If so a shame, because it is light too, and enables great turning lock - probably of no consequence in America though?
      • 5 Years Ago
      Did anybody else notice that the new Pentastar V6 only has a single exhaust port per head? Seems to me like they designed that so they could easily bolt a turbo upto each head.
        • 5 Years Ago
        Integral exhaust manifold.
        Honda did it, Subaru did it.
      • 5 Years Ago
      I like what I see!
      • 5 Years Ago
      Chrysler will die....again......hahahahah lol ...
      • 5 Years Ago
      170 out of a 4pot? put that in a US market 500 Abarth, and watch em fly like hot cakes
      • 5 Years Ago
      "Chrysler will begin fitting one of two new 1.4-liter four-cylinder engines on future models: a naturally aspirated version kicking out 100 horsepower (at 6,750 rpm) and 95 pound-feet of torque (at 4,250 rpm)"

      Right that engine sounds very powerful.... I HATE UNDERPOWERED ENGINES!!! I truly believe this is a stepback for the company and its product .Also Chrysler vehicles are not getting any lighter either with all of the mandatory safety equipment. Think about it, Hyundai gives you a more powerful engine in their base accent for little cash!
        • 5 Years Ago
        MINI Cooper starts with a 118hp base engine in a 2600-pound car. The Fiat 500 weighs 2150 pounds. A 100hp base engine sounds reasonable to me (unless you plan to start complaining about how much you hate BMW's underpowered cars). Or for a more meaningful comparison, the Toyota Yaris offers a similar 106hp--and we have no idea yet what the 1.4 liter's torque numbers will look like.

        Smaller, more economical engines are coming, like it or not. Toyota is sticking a 2.4 liter 4 in its 4300-pound Sienna for 2010. What Chrysler is doing sounds very much in line with the rest of the competition.
      • 5 Years Ago
      And where are the diesels?
        • 5 Years Ago
        no need with the 1.4
      • 5 Years Ago
      Fiat = Diesel engines that are class competitive or class leaders worldwide.

      U.S. Market = Third world in diesel cars
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