Maserati started in July 2020 with a bong, and this bong is said to come from a new twin-turbo V6 called Nettuno. The Modena automaker also touted something with its latest creation – that everything is new and fully developed in-house.
Why is this a big problem? Well, for years, Maserati has been borrowing power plants from Ferrari to power its cars. The Nettuno was supposed to be a sign of independence from Maranello.
There is only one problem, however – the Nettuno is not entirely new, allegedly.
In a thorough investigation by Road and track, the magazine discovered that several parts of Nettuno correspond exactly to those coming from the Ferrari F154 V8 and Alfa Romeo 690T engines. The latter is a V6 version of the Ferrari mill which is used by both Giulia and Stelvio Quadrifoglio.
According to the R&T report, Nettuno’s 90-degree angle of 220 kilograms (485 pounds) matches the F154 perfectly, as does the rear layout. Even the 88 mm bore and 82 mm stroke correspond to the F154 of the SF90 Stradale, as well as its speed limit of 8,000 rpm. Regarding the firing order 1-6-3-4-2-5, R&T has observed that the same is true for the V6 found in the Alfa Romeos mentioned.
R&T has found many more similarities shared between the Nettuno and the F154, even presenting images of a unearthed Ferrari California T engine, suggesting that the nitty-gritty of the new Maserati V6 is not entirely new.
The publication pointed out, however, that Nettuno’s head is fully developed in Modena. This gives the new Maserati V6 a unique compression ratio of 11: 1 which does not match any Ferrari. The head also has technology based on Formula One in the form of a “pre-chamber”.
Whether the new Nettuno is completely new or not, we will see the V6 power the next Maserati MC20 supercar with central engine, developing around 630 horsepower at 7,500 rpm and 730 Newton meters (538 lb-ft) of torque between 3,000 and 5,500 rpm