The Ferrari Roma’s 620 CV engine belongs to the V8 turbo family voted International Engine of the Year for four years in a row. The main innovations of this version of the Ferrari V8 are new cam profiles, a speed sensor which measures the turbine revolutions and allows its maximum revs per minute to be increased by 5,000 rpm., and the introduction of the Gasoline Particulate Filter to comply with the strictest anti-pollution standards. The closed matrix filter traps particulate matter produced during combustion, and the Ferrari engineers worked hard to optimize it, thus guaranteeing that it would not compromise driving pleasure.
GEAR
The introduction of the eighth gear has resulted in a reduction in fuel consumption without compromising on performance. The gearbox is based on a dual-clutch oil bath architecture and is derived from the new 8-speed gearbox introduced on the SF90 Stradale. The main modifications made with respect to the latter are longer gear ratios and the introduction of a reverse gear (which is performed through an electric motor in the SF90 Stradale). The new clutch module is 20% smaller but delivers 35% more torque. The transmission software strategy has been evolved thanks to a more powerful ECU and better integration with the engine management software. This has made the shifts quicker, smoother and more consistent.
ZERO TURBO LAG
Like all other Ferraris in the range, the Ferrari Roma delivers almost instantaneous throttle response thanks to its flat-plane crankshaft, which is more compact in size with lower rotating masses to improve fluid-dynamics; to compact turbines which thus have a lower moment of inertia; to the twin-scroll technology that increases the pressure of the exhaust pulses for maximum power; and to the single-piece cast exhaust manifold with equal length pipes to optimise pressure waves in the turbine and reduce losses.
VARIABLE BOOST MANAGEMENT
The Ferrari Roma boasts Variable Boost Management, a control software developed by the company’s engineers that adjusts torque delivery to suit the gear selected, delivering increasingly powerful pick-up as revs rise, whilst optimising fuel consumption. As the car goes up through the gears, the amount of torque delivered by the engine increases all the way up to 760 Nm in 7th and 8th gear. This has allowed Ferrari to use longer gear ratios in the higher gears, which helps keep fuel consumption and emissions down, while adopting a steeper torque curve through the rev range in the lower gears for a feeling of smooth, consistent pick-up.
EXHAUST LINE
By tradition, every single Ferrari engine has its own particular soundtrack that makes it unique. The Ferrari Roma is no exception that rule. The geometry of the entire exhaust line is new, thanks to the elimination of the two rear silencers, which significantly reduces backpressure in the tailpipes; the new geometry for the by-pass valves, machined to an oval shape which reduces exhaust backpressure and improves sound quality; and the proportional continuous and progressive by-pass valve control, depending on the driving situation.
The Ferrari Roma represents the pinnacle of performance in this category, thanks to its turbo-charged V8 from the family of engines that has won the overall International Engine of the Year award four years running. In this version, the engine reaches 620 cv at 7500 rpm and is coupled with the new 8-speed DCT gearbox that was introduced on the SF90 Stradale.