A hot vee turbocharged engine (or hot V) is a

V engine A V engine, sometimes called a Vee engine, is a common configuration for internal combustion engines. It consists of two cylinder banks—usually with the same number of cylinders in each bank—connected to a common crankshaft. These cylinder ...

with one or more

turbocharger In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into th ...

s in the "V" between the cylinder banks. This reverses the gas flow in the traditional layout for V engines where there is a single intake manifold in the center of the V (the "cold side"). The hot vee offers a shorter air path from the turbocharger, through an

intercooler An intercooler is a heat exchanger used to cool a gas after compression. Often found in turbocharged engines, intercoolers are also used in air compressors, air conditioners, refrigeration and gas turbines. Internal combustion engines Mo ...

, and back into the engine intake, which can reduce

turbo lag In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into th ...

Applications

Ferrari 126C The Ferrari 126C is the car with which Ferrari raced from the 1981 through the 1984 Formula One season. The team's first attempt at a turbocharged Formula 1 car, it was designed by Mauro Forghieri and Harvey Postlethwaite. The engine chief e ...

F1 car used a hot vee in 1981.

BMW N63 The BMW N63 is a twin-turbocharged petrol V8 engine which has been in production from 2008 to present. The N63 is the world's first production car engine to use a "hot-vee" layout, with the turbochargers located inside the "V" of the engine. It i ...

was the first production motor using the hot vee, used in the US-made

BMW X6 The BMW X6 is a mid-size luxury crossover SUV by German automaker BMW. The BMW X6 is the originator of the sports activity coupé (SAC), referencing its sloping rear roof design. It combines the attributes of an SUV (high ground clearance, al ...

since 2008. Since then others have been introduced including the

Mercedes-AMG GT The Mercedes-AMG GT is a series of 2-door sports cars produced by German automobile manufacturer Mercedes-AMG. The car was introduced on 9 September 2014 and was officially unveiled to the public in October 2014 at the Paris Motor Show. While n ...

(2014), the Porsche Cayenne Turbo (2018) and Cadillac's twin-turbocharged 4.2 liter V8 in the 2019 CT6-V.

References

{{Piston engine configurations V engines