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 … Read more

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? … Read more

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 … Read more

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