General
June 9, 2019
5 minutes read

Mercedes-AMG Debuts “Most Powerful” 4-Cylinder Engine

An assembly technician works on a part of the new Mercedes-AMG 2.0-litre M 139 engine. image:Mercedes-AMG Mercedes-AMG has unveiled a…

An assembly technician works on a part of the new Mercedes-AMG 2.0-litre M 139 engine.

image:Mercedes-AMG

Mercedes-AMG has unveiled a new four-cylinder engine that it touts as the “world’s most powerful [and] turbocharged”. The new engine — assembled entirely by hand — has some interesting features, including output of up to 310 kW (421 hp), maximum torque of up to 500 newton metres and an output per litre of up to 155 kW (211 hp). This places it ranks above many mainstream super-car engines.

The new Mercedes-AMG M 139 engine is assembled entirely by hand on the first floor of the AMG engine factory in Affalterbach, Germany. Its other features include:

Rotation around its vertical axis by 180 degrees.
Intake system positioned at the front, and the exhaust manifold now positioned at the rear, for aerodynamic advantage.
Maximum charge pressure of up to 2.1 bar (1.9 bar in basic version).
Turbocharger cooling by fresh air, in addition to oil and water.
Integral insulation on turbine housing.
Coated linings.
7200 rpm maximum engine speed.
9.0:1 compression ratio.
160.5 kg (weight).
1991 cc displacement.