Maserati hasn’t raced in Method One in a long time, however the automaker’s just lately unveiled MC20 supercar boasts some F1-derived engine tech, in response to Jason Fenske of Engineering Defined.
Particularly, the automotive’s 3.0-liter twin-turbocharged V-6 makes use of pre-chamber combustion. Meaning every cylinder has twin combustion chambers, every with its personal spark plug. Pre-chamber combustion is not new; Honda was utilizing it within the 1970s, Fenske famous. However Maserati is doing one thing completely different with the know-how.
Maserati is probably going the one automaker utilizing a so-called passive pre-chamber system in a manufacturing automotive. Because the identify implies, air and gasoline aren’t actively injected into the pre-chamber, which is smaller than the principle combustion chamber and positioned straight above it. As an alternative, the air-fuel combination is drawn into the principle combustion chamber, after which pushed up into the pre-chamber, by the movement of the piston.
Maserati Nettuno 3.0-liter twin-turbocharged V-6
This setup is designed to hurry up combustion, which in flip reduces knock, Fenske mentioned. Knock is a serious potential subject as a result of lean air-fuel ratios used within the engine and different trendy engines to go emissions exams. Maserati’s patent on the design additionally claims it may well scale back gasoline consumption by 30%, or permit for an engine to be downsized by 25% whereas producing the identical energy as a bigger one.
Each the pre-chamber and the principle combustion chamber have their very own spark plugs. At excessive rpm and excessive load, solely the pre-chamber spark plug is used, whereas each are utilized in different situations, Fenske mentioned. The period of time between firing every spark plug can be adjusted, altering the period of combustion to heat up the catalytic converter, and even make the engine quieter, Fenske mentioned.
Within the MC20, the Nettuno engine produces 621 horsepower and 538 pound-feet of torque. That enables for 0-60 mph in 2.9 seconds and a prime pace of 202 mph, in response to Maserati. The automaker hasn’t supplied pricing info or a manufacturing timeline for the MC20, its first supercar since the MC12 ended manufacturing in 2005.