Skip to main content

A New Pentastar is Born: FCA Improves Prized V-6 Engine

Photo Credit: FCA US

Becoming the most famous six-cylinder engine design created for Chrysler/FCA products since the Slant-6 that was produced for most than 40 years, the 3.6-liter displacement size Pentastar V-6 gained favour for being powerful, fuel efficient and universal in a single package. Topping out at 305-horsepower with the Dodge Challenger, the evolved engine allows the coupe to achieve 30 miles per gallon highway fuel economy (7.8 liters per 100-kilometer range by Canadian fuel economy measurements). For 2015, almost every vehicle of the Chrysler, Dodge and Ram division offer the modern six-cylinder powerplant. Offered as the base engine in the Dodge Charger, Chrysler 300 and the Dodge Grand Caravan minivan, even the Ram pickup truck and ProMaster work van make use of the power source. For 2016, the Pentastar V-6 has undergone a significant reworking that should be immediately noticed by buyers of FCA vehicles.

Introduced by Chrysler for the 2011 model year, the Pentastar V-6 engine’s technology has made it one of the most intriguing powerplants. While most auto companies were adding gasoline direct injection and turbocharging 250-plus horsepower six-cylinder engines, the Pentastar is largely a simpler but optimized power unit. The re-tweaking of the powerplant follows the modern tradition of the powerplant while creating a lighter, more efficient machine for the upcoming model year.

Making the engine more fuel efficient and even better performing on the road, the 2016 3.6-liter Pentastar V-6 engine is actually lighter than its previous version. The four-pound weight decrease is credited to shaving weight through redesigned engine components. Thin-walled die-cast pieces are lighter but do not compromise NVH (Noise, Vibration and Harshness) performance. A two-step variable valve lift system and an enhanced variable-valve timing system are features found on the latest upgrade of the 3.6-liter engine. A new intake manifold, higher compression ratio and high-tumble intake ports are some of the immediate changes to the Pentastar V-6. With the advancement of the Pentastar V-6 engine, FCA has retained an older-style fuel injection system layout. Sequential multiport fuel injection now utilizes eight-hole fuel injectors (twice as many holes what is found on the predecessor’s engine providing better atomization). The latest iteration of the FCA engine also engineered with friction-reducing components for smoother operations.

One of the crowning achievements with the new Pentastar V-6 is the inclusion of an EGR valve. The EGR (Exhaust Gas Recirculation) valve redirects some of the exhaust gases emitted from an engine into the next combustion cycle for reduced nitrogen oxide emissions. The presently available Pentastar engine originally touted the absence of an EGR valve with the use of advanced emissions technology. With the upgrade to the powerplant, the cooled EGR setup is installed for greater emissions reduction and will contribute to knock-free operations at higher loads.

Photo Credit: FCA US

Undergoing 4.7-million test miles in its development process, the latest Pentastar V-6 obtains greater responsiveness and longer potential cruising ranges. The new engine is configured to grant greater torque production at a lower range. Engine torque availability at ranges below 3,000 rpms will increase by 14.9 percent depending on the installation. Capable of going further on a gallon of gasoline, the new Pentastar V-6 engine is advertised to feature six-percent better fuel economy than the 2015 version. The use of Engine Stop Start is also mentioned as component that the new Pentastar engine technology.

The refined Pentastar V-6's first home will be under the hood of the 2016 Jeep Grand Cherokee. Expect to see the Pentastar shape infused on other FCA models in a very short time.


Popular posts from this blog

Will NASCAR's Next Gen Car Development Avoid Mistakes Made With CoT?

  Photo Credit: James Gilbert/Getty Images untitled On Wednesday of this week (May 5 th of 2021), NASCAR will formally present the sport’s newest Cup Series chariot. Originally called the Gen 7 car before adopting the moniker of the Next Gen car, the vehicle was initially planned to be part of the 2021 racing season but was pushed to 2022 due to the declaration of the COVID-19 pandemic in 2020 disrupting development as well as team finances to implement the Next Gen car. From the details already leaked about the Next Gen car, the 2022 Cup season is destined to deliver the biggest learning curve ever to drivers, team and fans. Ahead of the official unveiling of the car, indications of a new spec chassis, six-speed manual transmission, independent rear suspension as well as a larger diameter, single-lug wheels are radically going to reshape the operations of NASCAR Cup Series teams on and off the track. With anticipation building towards the planned on-track introduct

Morbid Motoring History: Transaxle of James Dean’s Porsche 550 Spyder Up For Auction

Photo Credit: Porsche AG untitled More than 65 years after James Dean’s fatal highway crash on U.S. Route 466, a verifiable piece has surfaced of the vehicle involved in the ill-fated Porsche 550 Spyder the 24-year-old actor drove in his last moments of life. Through an online auction being held on Bring A Trailer , buyers with a desire to obtain a rather ghoulish gearbox. The Porsche 550 Spyder was one of the first purpose-built race cars assembled to establish a name of what was once a small sports car located in Stuttgart, Germany. A derivative of Porsche’s 356 production car, the 550 Spyder’s compact, lightweight stature (the 550 was in reference to the vehicle’s weight in kilograms) combined with a mid-mounted 1,500 cc flat-four engine proved almost instantly superior in competition. Entering competition in 1953 by Porsche, the 550 Spyder cemented much of the early on-track success for the brand including a class victory at the 1953 24 Hours of Le Mans. A total of 90

A New Four-Runner: Helio Castroneves Wins Monumental 2021 Indy 500

Photo Credit: Joe Skibinski/IndyCar untitled As race day for the 105 th edition of the Indianapolis 500 at the iconic Indianapolis Motor Speedway approached, a number of favourites emerged through the practices and qualifying session. Six-time IndyCar champion Scott Dixon topped the lists of many analysts after he captured the race’s pole position . Dixon’s #9 Chip Ganassi Racing’s Dallara-Honda posting the fastest time in Friday’s Carb Day practice only solidified the logic of picking the New Zealander to win. Other names favoured for having the best chances to drink milk in Indianapolis Motor Speedway’s victory lane included Colton Herta, Rinus VeeKay, Alex Palou and Alexander Rossi. Besides Scott Dixon, it is surprising to conceive after the 2021 running of the 500-mile greatest spectacle in racing that another more veteran name wasn’t immediately entered into top contention prior to the green flag. Unlike the COVID-19 delayed 2020 event that ran on August 23 in 85