What happened to Mopar’s heavy-duty dual-clutch transmissions?

62TEM or 79REM transmission

Back in the days when there was still a Chrysler Corporation, engineers started working an a manual transmission that shifted itself—a dual-clutch automatic of the style later produced by Fiat, Ford, and others. At the time, such transmissions had never been successfully used in light-duty vehicles, but were used by heavy-duty trucks. The transmission was …

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Inside the “Firefly” or “T4” GSE 1.3 turbo engine

T4 1.3 turbo GSE engine

Years after Fiat and Chrysler came together, a team of engineers from nearly every part of the country, including Americans, Italians, and Brazilians, came together to create brand new small (GSE) and medium-sized (GME) four-cylinder engines. The acronyms stand for “Global Small/Medium Engine;” in Brazil, the GSE is marketed as the FireFly. The first of …

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B (as in “big”) V8 engines

300G cross-ram wedge engine

Despite our headline, the B in “B engines” did not mean “big.” The creation story Chrysler’s first V8 engines (such as the 392 shown below) were a success, but they were only intended for high-end, relatively pricey cars. As more and more customers demanded eight cylinders, though, Chrysler Corporation could not make enough of their …

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Chrysler turbos of the 1990s

Chrysler 2.2 Turbo III

In the 1980s, Chrysler took its around-90-to-100 horsepower 2.2 liter four-cylinder engine and pushed it to 142, then 150, and finally 174 horsepower, topping at an impressive 210 pound-feet of torque—all quite good for an engine never designed for such treatment. How could they beat that in the 1990s, while improving what they already had? …

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Mopar turbos of the 1980s

The first generation of turbocharged Mopars were not part of the executives’ original plan, but they were tough, well-engineered, efficient, and, with the Turbo IV of the 1990s, innovative enough that modern turbos follow in their path. All were four-cylinders, from the same family, made in two displacements (one was mildly stroked). The more powerful …

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