Lancia Car Engine: Musa engine-Phedra, Thesis

Lancia produced the first V6 as well as the first V4s. Several different V4 families were produced from the 1920s through 1960s. Lancia is famous for many automotive innovations. These include the first full-production V6 engine, in the 1950 Aurelia, and earlier experiments with V8 and V12 engine configurations. It was also the first company to produce a V6 engine and a V4 engine. Modern Lancias are renowned for presenting a more luxurious alternative to the models in the Fiat range upon which they are based.

A V4 engine is a V form engine with four cylinders. Lancia produced several narrow-angle V4 engines from the 1920s through 1960s for cars like the Lambda, Augusta, Artena, Aprilia, Ardea, Appia, and Fulvia, Dilambda, Kappa. One other large use of the V4 engine is in outboard motors. They are two stroke cycle and generally carbureted. Some manufacturers are Johnson, Evinrude and Yamaha. This type of engines is popular because of their small size, while still allowing 140+ horsepower. A common mistake is to refer to the much more common inline 4 as a V4.

Current models Musa, Phedra, Thesis and the first Ypsilon (1996-2003) which was available only with petrol engines from 1.1 to 1.4 litres. The 1.4 top model was an old 12-valve unit, and was eventually replaced with a 16-valve 1.2-litre, smaller but more powerful, with 63 kW (86 PS). Second generation "Ypsilon" (2003-present), this engine range goes from 1.2 to 1.4-litre petrols alongside the 1.3 MultiJet Diesel, with power going from 44 kW (60 PS) to 70 kW (95 PS).

The Lancia Thesis is an executive car (2001-present), It is available with naturally aspirated and turbocharged engines ranging from 2.0 L to 3.2 L, in both straight-5 or V6 configurations. The Thesis is based on the Lancia Dialogos prototype.

The straight-5 or inline-5 is an internal combustion engine with five cylinders aligned in one row, sharing a single engine block and crankcase. This configuration is a compromise between the smaller straight-4 and the larger straight-6. The 5-cylinder engine's advantage over a comparable 4-cylinder engine is best understood by considering power strokes and their frequency. A 4-cycle engine fires all its cylinders every 720 degrees — the crankshaft makes two complete rotations. A 5-cylinder engine is longer and more expensive to manufacture than a comparable 4-cylinder engine, but some manufacturers feel these costs are outweighed by its greater smoothness. A disadvantage of a straight-5 over a straight-6 is that a straight-5 engine is not inherently balanced. A straight-5 design has free moments (vibrations) of the first and second order, while a straight-6 has zero free moments. This means that no additional balance shafts are needed in a straight-6. By comparison a straight-4 has no free moments of the first or second order, but it does have a large free force of the second order which contributes to the vibration found in unbalanced straight-4 designs.

Other models produced in 1945-1980 were Appia · Aurelia · Beta · Flaminia · Flavia · Fulvia · Gamma · Monte Carlo · Stratos; in 1980-2000: Dedra · Delta · Kappa · Lybra · Prisma · Thema · Y10 . Ypsilon · Zeta.