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

IMSA WeatherTech SportsCar Championship: Acura Grand Prix of Long Beach Review

Photo Credit: Automobili Lamborghini S.p.A. untitled A companion to the NTT IndyCar Series finale weekend on the streets of Long Beach, the IMSA WeatherTech SportsCar Championship staged a 26-car race on Saturday consisting of DPi, GTLM and GTD class machines. With the conclusion of the 1-hour, 40-minute Acura Grand Prix of Long Beach sports car event, the overall winner was the #31 Whelen Engineering Racing Cadillac shared by the driving duo of Felipe Nasr and Pipo Derani. The victory was a decisive weekend for the Whelen Engineering Racing team that had scored the pole position and went on to take the checkered flag with a 10.95-second gap over the #01 Cadillac fielded by Chip Ganassi Racing with Kevin Magnussen and Renger van der Zande. Corvette Racing enjoyed a dominant outing in the GTLM category. Nick Tandy and Tommy Milner in the #4 Chevrolet Corvette C8.R beat the #3 car shared by Antonio Garcia and Jordan Taylor. Only three GTLM class vehicles ran at Long Be

Formula 1: Lewis Hamilton Quickest In Qatar Qualifying

Photo Credit: LAT Images for Mercedes-Benz Grand Prix Ltd. Saturday’s qualifying for the inaugural Formula 1 race in the Arab nation of Qatar has assembled what is certain to be a dramatic opening lap showdown between this season’s title contenders Lewis Hamilton and Max Verstappen. In setting the grid for Sunday’s 57-lap main event on the fast, high grip 5.380-kilometer Losail International Circuit, it was the driver of the #44 Mercedes-AMG Petronas Formula One Team race car that took honours. Lewis Hamilton’s pole-winning lap time of 1-minute, 20.827 seconds in the final Q3 session putting a cap on a time trial where the seven-time World Drivers’ Champion handily controlled through the three sessions. Joining Hamilton on the front row of the 2021 Qatar Grand Prix will be Max Verstappen’s Red Bull Racing machine. The Honda-powered entrant was 0.455 seconds slower than the rival Mercedes race car. With the race at Losail being the third-to-last event on the 2021 Form

Is More Imagination Needed Towards Indy 500 Pace Car Selection?

Photo Credit: General Motor/Chevrolet This weekend, the Indianapolis 500 will be run for its 100th time. A primary focus around a 500-mile auto race around a historic 2.5-mile race track has resulted in a far amount of traditions. Some of these traditions such as the Fast 9 qualifying shootout and the honorary starter are newer aspects while one of the oldest is the ceremonial pace setter used to lead the field to the green flag. A staple of the Indy 500 since the first race in 1911, the pace car history ranges from a Stoddard-Dayton roadster to a Chevrolet Corvette Z06 used in last year’s event. This year’s Indianapolis 500 will feature an all-new 2016 Chevrolet Camaro SS trimmed in a special preview of the 50th Anniversary Package. The beautiful Abalone White sixth generation Camaro convertible features a 455-horsepower, 6.2-liter V-8 LT1 engine perfect for maintaining pace lap speed ahead of a 33-car contingent of machines set to run at speed of 230 miles per hour. A tradi