Maserati Nettuno 3.0L Twin-Turbo V6
The revolutionary twin-turbo V6 that represents Maserati's first in-house engine since the 1990s and powers the MC20. This 2,992cc 90° V6 features a hot-V turbocharger configuration with twin spark plugs per cylinder and pre-chamber combustion system derived from Formula 1. The valve train uses chain-driven dual overhead camshafts with variable valve timing on all four camshafts, while the crankshaft is a forged unit running in four main bearings. The intake system uses twin twin-scroll turbochargers with air-to-water intercoolers, while the exhaust features an integrated manifold. With 11.0:1 compression and a 8,000 RPM redline, it produces 621 hp at 7,500 RPM and 538 lb-ft at 3,000-5,500 RPM. The cooling system uses a triple-circuit design with separate cooling for cylinder heads, block, and turbochargers, while the oiling system employs a dry-sump design with multiple scavenge stages. The pre-chamber combustion system uses a secondary spark plug in a pre-chamber that ignites a richer mixture, which then jets into the main combustion chamber to ignite the leaner main mixture—enabling both high compression and high boost pressure.