Chrysler Pentastar engine

"Pentastar" redirects here. For the album by Earth, see Pentastar: In the Style of Demons.
Chrysler Pentastar engine
Overview
Manufacturer FCA US LLC
Production 2011 (2011)–present
Combustion chamber
Configuration 60° V6
Displacement 3.0 litres (183 cu in)
3.2 litres (198 cu in)
3.6 litres (220 cu in)
Cylinder bore 91 mm (3.6 in) (3.2L)
96 mm (3.8 in) (3.6L)
Piston stroke 83 mm (3.3 in) (3.2L & 3.6L)
Cylinder block alloy Aluminium
Cylinder head alloy Aluminium
Valvetrain Dual overhead camshaft
Compression ratio 10.7:1 (3.2L)
10.2:1 (3.6L)
Combustion
Fuel system Sequential Multiple-Port Fuel Injection
Fuel type Gasoline
E85
Oil system Wet sump
Cooling system water-cooled
Output
Power output 230 hp (170 kW) (3.0L)
271 hp (202 kW) (3.2L)
275–305 hp (205–227 kW) (3.6L)
Torque output 210 lb·ft (280 N·m) @ 4400 rpm (3.0L)
239 lb·ft (324 N·m) @ 4400 rpm (3.2L)
251–268 lb·ft (340–363 N·m) (3.6L)
Dimensions
Length 503 mm (19.8 in)
Chronology
Predecessor Chrysler SOHC V6
Chrysler 3.3 & 3.8 engine
Chrysler LH engine
Chrysler Powertech V6

The Chrysler Pentastar engine family is a series of aluminium (die-cast cylinder block) dual overhead cam 24-valve V-6 gasoline engines introduced for model-year 2011 Chrysler, Dodge and Jeep vehicles. FCA has invested heavily in plants ($2 billion, not including engineering of the engines themselves). The engine was initially named "Phoenix", but the name was changed before the official launch due to a trademark conflict; the Pentastar name is derived from the now-defunct trademark of the former Chrysler Corporation, it dates back to 1963. The Pentastar was introduced at the 2009 New York Auto Show.[1][2] The engine design also allows the use of E85 or 87 octane fuel, supports cylinder deactivation, and features dual variable valve timing. The Pentastar engine currently does not use EGR [3] however it not only supports the use of the technology but is expected to add it in a near-term engine update known as the "2016 Pentastar".[4] Both Direct Injection as well as forced-air induction options were engineered into the Pentastar engine's design, however, like cylinder deactivation, these have not yet been implemented from the factory and remain "on the shelf" at this time.[5]

First Generation

Versions

Code Displacement Bore Stroke Years Power SAE Torque SAE
2,997 cc (182.9 cu in) 91.0 mm (3.58 in) 76.8 mm (3.02 in) 2014– 172 kW (234 PS) at 6350 rpm 285 N·m (210 lb·ft) at 4400 rpm
S 3,239 cc (197.7 cu in) 91.0 mm (3.58 in) 83.0 mm (3.27 in) 2014– 271 bhp (202 kW; 275 PS) at 6750 rpm (Cherokee) 239 lb·ft (324 N·m) at 4400 rpm
G 3,604 cc (219.9 cu in)[6][7] 96.0 mm (3.78 in)[6] 83.0 mm (3.27 in)[6] 2011– 283 bhp (211 kW; 287 PS) at 6400 rpm (Avenger, Grand Caravan, Journey, Town & Country, Sebring, Routan) 260 lb·ft (353 N·m) at 4800 rpm
290 bhp (216 kW; 294 PS) at 6350 rpm (Grand Cherokee, Durango) 260 lb·ft (353 N·m) at 4800 rpm
292 bhp (218 kW; 296 PS) at 6350 rpm (Charger, 300)[8]
305 bhp (227 kW; 309 PS) at 6350 rpm (Challenger) 268 lb·ft (363 N·m) at 4800 rpm
2012– 285 bhp (213 kW; 289 PS) at 6400 rpm (Wrangler) 260 lb·ft (353 N·m) at 4800 rpm
2013– 300 bhp (224 kW; 304 PS) at 6350 rpm (Charger Rallye Group, 300S) 264 lb·ft (358 N·m) at 4800 rpm
305 bhp (227 kW; 309 PS) at 6400 rpm (RAM 1500)[8] 269 lb·ft (365 N·m) at 4175 rpm
2015– 295 bhp (220 kW; 299 PS) at 6350 rpm (Chrysler 200) 262 lb·ft (355 N·m) at 4250 rpm
2012- 280 PS (206 kW) at 6350 rpm (Fiat Freemont) 342 N·m (252 lb·ft) at 4350 rpm
283 PS (208 kW) at 6600 rpm (Lancia Voyager) 344 N·m (254 lb·ft) at 4000 rpm
286 PS (210 kW) at 6350 rpm (Lancia Thema) 340 N·m (251 lb·ft) at 4650 rpm

Applications

3.0L

3.2L

3.6L

Pentastar Upgrade

For 2016, FCA released an updated version of the 3.6 L engine for the Jeep Grand Cherokee. This engine now featured two-stage variable valve lift (VVL), a cooled EGR, a new intake manifold, new fuel injectors, and new coil packs. It also features upgrades to the variable valve timing (VVT) system, an increased compression ratio (11.3:1), lower internal friction and lower weight. These improvements help to increase power as well as efficiency.[10]

Code Displacement Bore Stroke Years Power SAE Torque SAE
3,604 cc (219.9 cu in) 96.0 mm (3.78 in) 83.0 mm (3.27 in) 2016– 295 hp (220 kW) 260 lb·ft (353 N·m)

Applications

Production

The Pentastar engines are made in three different factories: Mack Avenue Engine Complex, Trenton Engine Plant and Saltillo South Engine Plant.[11]

Insiders initially reported that the engine would come in four basic sizes (3.0L, 3.3L, 3.6L, and 4.0L), each offered in various states of tune. The 4.0L has been dropped from the list and a 3.2L added, while Fiat's investor website, as of December 2011, specifies the 3.0L with Fiat's MultiAir technology.[12] The 3.6L engine itself has different horsepower ratings in different vehicles, and has higher horsepower (305 hp) and torque (268 lb-ft) as used in the Dodge Challenger[13]

Twin and single turbocharged variants are planned for 2015. These engines are projected to produce around 420 and 370 horsepower respectively. Direct injection is also planned.[14]

Due to the new ownership structure, Fiat has obtained the right to use these engines, and currently adopt them in the larger models of Lancia and Fiat brands.

See also

References

  1. ↑ Joseph, Noah (April 13, 2009). "Chrysler's flexible new Pentastar V6". Autoblog.com. Retrieved 2010-09-29.
  2. ↑ "NY Show: Chrysler LLC Introduces All-new Pentastar V-6 Engine". Redletterdodge.com. Retrieved 2010-09-29.
  3. ↑ "2011 Dodge Challenger Officially Revealed With 305-HP Pentastar V6". Retrieved September 26, 2011.
  4. ↑ "2016 Pentastar V6 adds new VVT, cooled EGR".
  5. ↑ "2016 Pentastar V6 adds new VVT, cooled EGR".
  6. 1 2 3 "All-new 3.6-litre V-6 Technical Specifications". Chrysler LLC. June 20, 2010. Retrieved August 29, 2010.
  7. ↑ "3.6-litre V-6 General Specifications" (PDF). Chrysler LLC. February 15, 2011. Retrieved February 15, 2011.
  8. 1 2 "Pentastar V-6 Set to Roll Out Across Broad Range of New Chrysler... – AUBURN HILLS, Mich., Oct. 21 /PRNewswire/". Michigan: Prnewswire.com. Retrieved 2011-05-13.
  9. ↑ "Chrysler Brand Releases Information Regarding New 2011 Mid-sized Sedan, the Chrysler 200". media.chrysler.com. 2010. Retrieved 2010-09-29.
  10. ↑ http://www.autoblog.com/2015/09/02/fca-pentastar-v6-2016-upgrades/. Retrieved 10 February 2016. Missing or empty |title= (help)
  11. ↑ "FCA US LLC Manufacturing Operations". FCA US LLC. Retrieved 11 May 2015.
  12. ↑ "2011 Fiat Investor Site" (PDF). Fiatspa.com. Retrieved 2011-12-07.
  13. ↑ "2011 Dodge Challenger cars". Allpar.com. Retrieved 2010-10-26.
  14. ↑ "Chrysler Pentastar V6 Engines for 2010 and Beyond". Allpar.com. Retrieved 2010-08-29.
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