VW EA825
| Volkswagen AG | |
|---|---|
| Image does not exist |
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| EA825 | |
| Production period: | since 2016 |
| Manufacturer: | Volkswagen AG |
| Working principle: | Otto |
| Motor design: | V-engine , eight-cylinder |
| Valve control: | DOHC |
| Displacement: | 3996 cm 3 |
| Mixture preparation: | Direct injection |
| Engine charging: | Turbocharger with intercooler |
| Power: | 338 - 478 kW |
| Max. Torque: | 600-850 Nm |
| Previous model: | VW EA824 |
| Successor: | none |
The VW EA825 (EA = development order) is a gasoline engine series from Volkswagen AG , which was developed by Porsche in the lead . The series includes eight-cylinder - V engines and the Volkswagen Group used in different vehicles since 2016th The engines are produced in the Porsche factory in Zuffenhausen .
technology
Base engine
The displacement of 4.0 l eight-cylinder - V-type engine is 3996 cm³ with a bore of 86.0 mm and a stroke of 86.0 mm. The geometric compression ratio is 10.1. The V angle of the engine is 90 degrees.
The engine has direct petrol injection .
Valve train
The gas exchange is controlled by four valves per cylinder ( four-valve technology ) and a total of four overhead camshafts driven by a timing chain .
The engine has cylinder deactivation via the so-called Audi valvelift system (AVS) , i. H. a two-stage stroke changeover of the valves. At partial load, four of the eight cylinders can be shut down using a different cam profile.
Charging and exhaust
The 4.0 l engine has two exhaust gas turbochargers (biturbo) that work according to the twin-scroll principle. The turbocharger is located in the inner V of the cylinder banks, i.e. H. the exhaust side is inside and the intake side is outside. This enables a compact design of the motor and keeps the gas flow paths short.
Others
The high-pressure fuel pump injects the fuel into the combustion chambers at 250 bar.
variants
4.0 l eight-cylinder (4.0 TFSI)
| Manufacturer | model series | vehicle | Construction period |
|---|---|---|---|
| Output: 338 kW (460 hp) at 5100-6000 / min, torque: 600 Nm at 1500-5000 / min | |||
| Audi | Audi A8 D5 | A8 60 TFSI | |
| Porsche | Porsche Panamera II | Panamera GTS | since 10/2018 |
| Output: 404 kW (550 PS) at 5750–6000 rpm, torque: 770 Nm at 1960–4500 rpm | |||
| Porsche | Porsche Panamera II | Panamera Turbo | since 11/2016 |
| Panamera Turbo S E-Hybrid | since 07/2017 | ||
| Porsche Cayenne III | Cayenne Turbo | since 09/2017 | |
| Cayenne Turbo S E-Hybrid | since 08/2019 | ||
| Porsche Cayenne Coupe | Cayenne Coupé Turbo | since 08/2019 | |
| Cayenne Coupé Turbo S E-Hybrid | since 08/2019 | ||
| Power: 441 kW (600 hp) at 6000 rpm, torque: 800 Nm at 2100-4500 rpm | |||
| Audi | Audi A6 C8 | RS 6 | since 12/2019 |
| Audi A7 C8 | RS 7 | ||
| Audi Q8 4M | RS Q8 | ||
| Power: 478 kW (650 hp) at 6000 rpm, torque: 850 Nm at 2250–4500 rpm | |||
| Lamborghini | Lamborghini Urus | Urus | since 03/2018 |
Individual evidence
- ↑ a b c Efficiency and driving pleasure: innovative V-engines from Audi. Retrieved on February 11, 2018 (German).