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Future Chrysler, Dodge, and Jeep Powertrain / Engines

Viper V-10 and Hemi Engines

The Viper V10 is the last remaining engine that dates back to the Chrysler Corporation — and it is being dropped at the same time as the Viper itself.

A Hellcat upgrade to 840 hp arrived with the Dodge Challenger Demon, as we had predicted in 2016. Hellcat production is currently slated to last at least till 2021, outlasting the 5.7 Hemi.

engine bay

We have not heard about the 6.4 V8, but production of the 5.7 Hemi V8 was apparently to stop in calendar year 2018. The company stockpiled Hemis, so sales could continue even after production stops. We have had scattered reports of a turbocharged 5.7 Hemi which might take the place of the 392, or at least supplement it, as well as the possibility that the end-date for the 5.7 had been pushed back.

As for the 6.4 liter truck engine, the future is fuzzy, but there is an upgrade planned for the near future, according to redriderbob. The 6.4 may replace the 5.7 in some pickups.

New straight sixes — Tornado?

AMC 4 liter straight six

FCA is looking to straight sixes again, based on the GME four-cylinder. Straight sixes are inherently smoother-running than V-shaped engines, and have packaging advantages where suspension articulation is important. We should expect to see them in three to seven years. One source wrote, “The twin-turbo version is being treated like two separate 3-cylinders, each having its own intake, throttle body, and turbocharger.” Full story: Tornado Straight Six

Pentastar V6 engines, V8, turbocharging, and more

Another small Pentastar update, “PUG,” is due around 2017-18. There will be changes to the valve setup and the heads. The turbocharged Pentastar appears to have been dropped in favor of the Tornado straight six.

Pentastar V6 engines were to spawn a 4.8 liter V8, but that has been dropped.

On the more mundane side, the 3.2 will be dropped, and the 3.0 used for European export will be joined by a 2.8 liter V6. The 3.2 produces 271 hp and 239 lb-ft of torque from 198 cubic inches, but fuel and space savings are apparently minimal.

Future of the Pentastar

The Pentastar V6 was highly praised when it first came out; it’s smooth, powerful, quiet, reliable (especially after the first year), and economical. It’s still a fine engine, but its long-term future may be in doubt.

First, the Pentastar doesn’t seem to be inclined to have big power numbers. The Ferrari-Maserati version, re-engineered from Chrysler’s design, puts out 404 horsepower — but at a cost that Ram and Dodge can’t really support.

The lack of a direct-injected Pentastar may say something about FCA’s resources, or it may suggest that there are problems in development (we have not heard of any). We have heard, unofficially, of problems powering the Pentastar to desired levels.

What’s more, the company is, most likely, working on a straight-six that would be “in line” with other premium automakers’ engines.

There’s also the “Hurricane” turbo-four — which, sources claim, has been delayed for nontechnical reasons. This will debut in the next-generation Jeep Wrangler, generating what we believe will be 280-300 hp. That is in line with the current Pentastar 3,6, and much more than the 3.0 and 3.2 liter.

The most likely scenario is that the Cherokee moves to the 3.6 engine for a while, before dropping the V6 entirely; and the “Hurricane” replaces the 3.0. The Pentastar 3.6 then continues until the Hurricane and the new six eventually kill it off.

Four cylinder engines

With thanks to “FGA Cheerleader” for gathering specs and updating information.

Ralph Gilles announced a “new family” of four cylinder engines to appear in late 2016 — the GME (Gasoline Medium Engine) series. He said that the Hurricae turbo four would be part of this new group. There is also a GSE (Gasoline Small Engine) series. The two series, which appear to have been independently developed, are quite different in design.

GME and Hurricane (turbocharged 2.0) engines

Jointly developed by USA-based and Italy-based FCA groups, and borrowing from the World Gas Engine, Fiat Twin-Air, and Pentastar V6, the GME will replace all current 2.0 to 2.4 liter engines used by FCA worldwide. The Dodge-Chrysler-Jeep version is lagging the Alfa Romeo one by quite a time: it’s not expected until calendar-year 2018.

hurricane engineThe Hurricane 2.0 will show up in the Jeep Wrangler. Reliable source oh2o said they will be the base engine for the revised Charger and Challenger, eventually. Power ratings from the 2.0 are expected to be around 250 hp in the base turbo version, and 300 horsepower in the top tune; lower-power models may have the MultiAir system, but the higher-power ones will not. In Europe, the Alfa Romeo turbo 2.0 is rated at 200 and 280 hp.

“MJAB” wrote that it may use an electric supercharger combined with a traditional turbocharger, for faster reaction times. This is the setup rumored for the predicted 350-horsepower Alfa Romeo GME engine, which will have a 48-volt electrical system.

Several sources have told us that there were late development issues with the Hurricane, in getting the desired performance and durability, partly due to management issues which have reportedly been resolved.

engines

GSE engines

A smaller engine series, dubbed GSE (Gasoline Small Engine) and sold as the Firefly, has three and four cylinders; two are already present, and will replace the Fiat “FIRE” engines, and possibly the Brazilian E.TorqQ engines, which were derived from the old Neon 2.0.

 From (FIRE)To (GSE) From (FIRE)To (GSE)
Size 1.2 1.0 (3-cyl)1.41.3
HP687694104
Torque758070106

The 1.6 liter E.TorQ engine is rated at 109 hp and 112 lb-ft. A 1.8 liter version may remain.

 From (FIRE)To (GSE)To (GSE)
Size 1.4 turbo1.3 turbo1.0 turbo
HP160160120
Torque184??

Far more information on the Firefly / GSE series, past and future, is on our permanent Firefly/GSE engine page.

Diesels

The Cummins B-series straight-six diesel is still planned for future Rams.

The L424 Fiat diesel was reportedly being tested for US certification in the Wrangler; it has almost the same specs as the new VM 2.8 liter four-cylinder diesel, which was also designed to meet United States ULEV standards. Jeep has long used VM diesels in Europe, and VM is part of FCA now. Finally, there is a 2.2 liter Alfa Romeo diesel already showing up in Chrysler’s parts system, possibly for the Jeep Cherokee. The Wrangler will use the VM 3-liter V6.

 Fiat L424VM 2.8 Gas. V6Alfa 2.2 diesel
Horsepower200197~ 292up to 210
Torque (lb-ft)368368260up to 347

FCA reportedly has plans to use diesel engines in more American cars and trucks, to meet increasing fuel economy rules; and the company certainly has some good choices. (The VM 3-liter V6, incidentally, produces 241 horsepower and 406 pound-feet of torque, making it ideal for heavier cars and SUVs; one can see it in the Dodge Durango and Charger, for example, and even in minivans.)

Eight speed and nine speed automatics

ZF’s eight speed automatic transmission for rear wheel drive cars and nine speed ZF front wheel drive cars continues to spread across the line; a second generation is being used by pricier cars from FCA and others, and a new version of that second generation is reportedly being adapted to Chrysler-Dodge-Ram-Jeep needs for their exclusive use (Maserati already uses it).

The transmissions can be used with stop-start systems, which will be used in more cars, trucks, and SUVs, and with hybrids, the first of which will be the Pacifica. (845RFE, ZF HP8928TE, ZF HP9).

ZF 9-speed automatic

Hybrid cars, electric cars

The hybrid Chrysler Pacifica minivan is here, and other cars use a Chrysler-engineered start-stop system which shuts off the engine when the car is stopped. Expect to see more sophisticated belt-starter-generator stop-starts, and more uses of the plug-in hybrid system. Finally, CNG is factory-installed on Ram Hemis for fleet use.

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