| Alfa Romeo 690T engine | |
|---|---|
.jpg) Giulia Quadrifoglio engine bay | |
| Overview | |
| Manufacturer | Alfa Romeo |
| Designer | Gianluca Pivetti |
| Production | 2015–present |
| Layout | |
| Configuration | 90°V6 |
| Displacement | 2.9 L; 176.4 cu in (2,891 cc) |
| Cylinder bore | 86.5 mm (3.41 in) |
| Piston stroke | 82.0 mm (3.23 in) |
| Cylinder block material | Closed-deckAluminium with wet steelcylinder liners |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC, 24-valve withcontinuous camshaft phasing[1] |
| Valvetrain drive system | Chains |
| Compression ratio | 9.3:1 |
| RPM range | |
| Idle speed | 950 |
| Max. engine speed | 7,400 rpm[1] |
| Combustion | |
| Turbocharger | Twosingle-scroll parallelturbochargers (IHI) with air-to-liquidintercooler |
| Fuel system | Port anddirect injection |
| Management | 2× BoschMotronic[2] |
| Fuel type | Petrol |
| Oil system | Wet sump with waterheat exchanger, variable-speedoil pump[3] |
| Cooling system | Water-cooled, low- and high-temperature systems each with main and additional radiators |
| Output | |
| Power output | 375–397 kW (510–540 PS; 503–533 hp) @ 6,500 rpm |
| Torque output | 600 N⋅m (443 lb⋅ft) @ 2,500-5,400 rpm |
| Dimensions | |
| Length | 905 mm (35.6 in) |
| Width | 860 mm (34 in) |
| Height | 505 mm (19.9 in) |
| Dry weight | 218 kg (481 lb)[2] |
| Chronology | |
| Predecessor | Alfa Romeo JTS engine |
TheAlfa Romeo 690T is atwin-turbocharged,direct injected, 90°V6petrol engine designed and produced byAlfa Romeo since 2015.[4] It is used in the high-performanceGiulia Quadrifoglio andStelvio Quadrifoglio models and is manufactured at theAlfa RomeoTermoli engine plant.[5]
The 690T is often considered to be theFerrari F154 engine with two less cylinders, but in fact it is a completely new engine developed by the same engineer, Gianluca Pivetti. Specification similarities that Alfa knew worked well reduced the development time.[6]
This 2.9-litre V6 uses single-scroll rather than twin-scroll turbos, which produce 1.4 bars (20 psi) of boost pressure. Alfa also added mechanicalcylinder deactivation to the right bank for increased highwayfuel efficiency. The 90-degree V6 engine'scrankshaft has threecrankpins 120 degrees apart, each with twoconnecting rods mounted side by side. This configuration results in uneven firing at 90 and 150 degrees of each rotation, but for each cylinder bank results in even pulses every 240 degrees, providing evenly-spaced exhaust pulses to each turbocharger and allows one bank to deactivate.[2] Additionally, from 2020 onward, Alfa addedport injection, doubling the number of injectors to 12.[1][7][8]
The Maserati 3.0-litre V6Nettuno [it] engine, introduced in theMaserati MC20, shares many characteristics with the Ferrari F154 and the Alfa Romeo 690T engines.[8][9]
The newAlfa Romeo 33 Stradale features a larger 3.0-litre version of the690T engine producing 456 kW (620 PS).[10]
| Eng. code | Displacement Bore x stroke | Years | Usage | Peak power | Peak torque |
|---|---|---|---|---|---|
| 690T | 2,891.26 cc (176 cu in)86.5 x 82 mm 481.877 cc (29 cu in) percylinder | 2016–present[11] | Giulia Quadrifoglio | 510 PS (375 kW; 503 hp)at 6500 rpm | 600 N⋅m (443 lbf⋅ft)from 2500 to 5000 rpm |
| 2016–2024[12][13] | Giulia Quadrifoglio Stelvio Quadrifoglio | 512 PS (377 kW; 505 hp)at 6500 rpm | |||
| 2019 | Giulia Quadrifoglio Racing Edition | 520 PS (382 kW; 513 hp)at 6500 rpm | |||
| 2023–present[14] | Giulia Quadrifoglio Stelvio Quadrifoglio | ||||
| 2020 | Giulia GTA / GTAm | 540 PS (397 kW; 533 hp)at 6500 rpm |