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FCA Working on a New Turbo Inline Six Engine



Dec 18, 2018

A brand new FCA inline six-cylinder engine turbocharged to meet or beat 5.7L Hemi power ratings while having a smoother torque curve is on the way, according to patent drawings discovered by AllPar.com.

The first vehicle to get it might be the Jeep Wagoneer or the next-gen Grand Cherokee, but it’s also bound for the Dodge Charger and Challenger and may replace the Pentastar as the base engine on the Ram pickups.

To keep space requirements low, FCA is going to have to pull out all the stops, so it’s not likely to be a GME four-cylinder with two more holes tacked on. The engine will have relatively small bores, closely spaced, to reduce its length; Lancia and Volkswagen have some old tricks that may come into play. Since every millimeter counts, Chrysler’s traditional steel cylinder liners may be rejected in favor of aluminum hardening. Reportedly, the goal is to stay within three inches of the current 2.4-liter four-cylinder.

The expected displacement is just under 3.0 liters, coming under a displacement-tax threshold, with power boosted either by twin turbos or by a twin-scroll turbo. The code name might be Tornado, or perhaps that’s wishful thinking. In any case, the engine coded Hurricane is known as the “2.0-liter four-cylinder,” so it seems likely the GME-T6, even if nicknamed “Tornado,” will just be called the “3.0-liter six-cylinder” in official statements.




Forced induction would likely be through twin-scroll turbochargers for the Chrysler versions, and perhaps dual turbochargers for Alfa Romeo and Maserati, if they share it. Any Italian versions would most likely have Ferrari-designed heads and different blocks.

Straight sixes are inherently smoother than V6s, and have a bit of snob appeal, given their use by BMW (mainly) and by Mercedes.


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3.0L "Tornado" Straight-Six Engine Coming to Ram 1500, Various Jeep Models

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12/27/2021




It’s been a heck of a long time since we’ve first heard that Fiat Chrysler is working on a brand-new engine with six cylinders arranged in a line. Codenamed Tornado and internally referred to as the GME T6, the Global Medium Engine Turbo Six has recently entered production in Mexico.

3.0L "Tornado" Straight-Six Engine Coming to Ram 1500, Various Jeep Models

27 Dec 2021






It’s been a heck of a long time since we’ve first heard that Fiat Chrysler is working on a brand-new engine with six cylinders arranged in a line. Codenamed Tornado and internally referred to as the GME T6, the Global Medium Engine Turbo Six has recently entered production in Mexico.

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The Stellantis media website lists the Saltillo Engine Plant as follows: “GMET6 HO launched on November 22nd, 2021.” The HO suffix indicates the high-output variant of the 3.0-liter mill based on the 2.0-liter turbo we already know from a plethora of models. In chronological order, these are the Alfa Romeo Giulia, Stelvio, Jeep Wrangler, Cherokee, Grand Commander, Maserati Ghibli Hybrid, Levante Hybrid, Jeep Wrangler 4xe, and Grand Cherokee 4xe.

Searching the Internet for more information on the six-cylinder engine, we’ve come across an Excel published by Centro Ricerche Fiat. As the headline implies, the file in question lists four applications of the GME T6 within Fiat Chrysler: the Ram 1500 (internally referred to as DT), current-gen Jeep Wrangler (JL), Gladiator pickup truck (JT), and the Wagoneer (WS).

All of them are rocking the high-output variant of the 3.0-liter engine, which poses a pretty obvious question. How does Fiat Chrysler intend to make a little more oomph from the GME T6? The simplest answer would be to crank up the boost pressure. A mild-hybrid setup, full hybrid, or plug-in hybrid are possible as well, especially the plug-in outcome. Frankly speaking, a vehicle as large and heavy as the Wagoneer definitely needs PHEV assistance.

Also rumored for the next-generation Dodge Charger and Challenger, which are coincidentally expected to be replaced by a full-electric muscle car, the GME T6 would indirectly replace the 5.7-liter HEMI. For the 2022 model year, the free-breathing V8 with eTorque mild-hybrid tech cranks out 395 horsepower and 410 pound-feet (556 Nm) in the Ram workhorse.UPDATE
On closer inspection, the Excel document from Centro Ricerche Fiat also lists the Grand Cherokee (WL) with the non-HO GME T6 engine

 
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