Nissan VR engine
| Nissan VR engine | |
|---|---|
 |
|
| Overview | |
| Manufacturer | Nissan (Nissan Machinery) |
| Production | 2007–present |
| Combustion chamber | |
| Configuration | 60° V6 |
| Displacement | 3.0 L (2,997 cc) 3.8 L (3,799 cc) |
| Cylinder bore | 86 mm (3.39 in) 95.5 mm (3.76 in) |
| Piston stroke | 86 mm (3.39 in) 88.4 mm (3.48 in) |
| Cylinder block alloy | Aluminum |
| Cylinder head alloy | Aluminum |
| Valvetrain | DOHC, 4 valves x cyl. |
| Compression ratio | 9.0:1, 10.3:1 |
| Combustion | |
| Turbocharger | Twin-turbo |
| Fuel system | Multi-point (VR38DETT)/Direct injection (VR30DDTT) |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Dimensions | |
| Dry weight | 429.5 lb (194.8 kg) (VR30DDTT) 608 lb (276 kg) (VR38DETT) |
| Chronology | |
| Predecessor | Nissan VQ engine, RB26DETT |
The VR is a series of twin-turbo DOHC V6 automobile engines from Nissan with displacements of 3.0 and 3.8 L. An evolution of the widely successful VQ series, it also draws on developments from the VRH, JGTC, and Nissan R390 GT1 Le Mans racing engines.
Contents
DDTT series
VR30DDTT
Announced by Infiniti on December 15, 2015 the VR30DDTT[1] was first made available in the Infiniti Q50 sedan, followed by the Infiniti Q60 coupé a year later. Both platforms come in a 300 and 400 hp (224 and 298 kW) version.[2] It is on the Ward's 10 Best Engines list for 2017 and 2018.
Features:[3]
- Aluminium block with arc sprayed mirror coating to cylinder bores
- Aluminium cylinder head
- Lightweight resin intake and lower oil pan
- Compact twin direct-mount turbos with integrated exhaust manifold and electronic wastegate actuator
- Twin water-to-air charge coolers with one 300 hp (224 kW)/two 400 hp (298 kW) water pumps
- Electronically controlled variable displacement oil pump
- Intake: electronic Variable valve timing Control (VTC)
- Exhaust: hydraulic continuously variable VTC
- Fuel system: direct injection
Applications:
| Years | Model | Power output |
|---|---|---|
| 2016–present | Infiniti Q50 | 300–400 hp (224–298 kW) |
| 2017–present | Infiniti Q60 | 300–400 hp (224–298 kW) |
| 2019–present | Nissan Skyline | 300–400 hp (224–298 kW) |
| 2022–present | Nissan Z | 400–420 hp (298–313 kW) |
Production
Production of the VR30DDTT engine began in 2016 at the powertrain plant in Iwaki, Fukushima, Japan.[4][5][6]
DETT series
VR38DETT
Designated the VR38DETT by Nissan, the engine was used from 2007–2022 in the Nissan GT-R[7] and the limited production Nissan Juke-R.
The VR38DETT featured 24 valves controlled by dual overhead camshafts (2 per cylinder head) with variable valve timing on the intake only. The block is cast aluminium with 0.15 mm (0.0059 in) plasma-sprayed cylinder liner bores. This coating provides a hard protective layer for the piston rings to slide on as the piston moves up and down during its power cycle. The turbine housings for the two IHI turbochargers are integrated into the exhaust manifolds to decrease weight and bolster vehicle balance. The engine also features a pressurized lubrication system controlled thermostatically. The VR38DETT is equipped with a feedback control system that changes air fuel ratio depending on the engine load which has a significant effect on reducing the fuel consumption.[8]
Fully equipped with the first set of catalytic converters, turbos, all of the engine driven accessories, front differential assembly, and turbo outlet pipes, the engine weighed 608 lb (276 kg).[9]
Other pertinent features of the VR38DETT include:
- Continuously variable valve timing control system (CVTCS) on intake valves
- Aluminum cylinder block with high-endurance/low-friction plasma-sprayed bores
- Iridium-tipped spark plugs
- Electronic drive-by-wire throttle
- Multi port fuel injection
- Pressurized lubrication system with thermostatically controlled cooling and magnesium oil sump
- Fully symmetrical dual intake and low back-pressure exhaust system
- Secondary air intake system to rapidly heat catalysts to peak cleaning efficiency
- 50 State LEV2/ULEV
Applications:
| Years | Model | Power output |
|---|---|---|
| 2007–present | Nissan GT-R | 480–710 hp (358–529 kW) |
| 2011 | Nissan Juke-R (only 5 units were produced) | 545 hp (406 kW) |
| 2014 | Infiniti Q50 Eau Rouge Prototype (Concept car) | 560 hp (418 kW) |
| 2023 | Praga Bohema | 700 hp (522 kW) |
| Racing: | ||
| 2012–present | Nissan GT-R Nismo GT3 | 530–550 hp (395–410 kW) |
| 2014–2021 | Renault Sport R.S. 01 | 550 hp (410 kW)[10] |
| 2017–2019 | Ligier Nissan DPi | 599 hp (447 kW) |
VR38DETT NISMO Engine Tuning Menu Concept (2016)
It is a version of VR38DETT engine used in Nissan GT-R, with GT3-spec camshaft, connecting rod and connecting rod bolt, intercooler, intercooler piping, turbocharger, NISMO 1st and 2nd catalyzers, titanium muffler.
The engine was unveiled in 2016 Tokyo Auto Salon.[11][12]
Production
The engines are hand built by five specially trained mechanics called "Takumi Craftsmens" on a special line at Nissan's Yokohama plant and their names are badged on every GT-R engine. The cars are built at their Tochigi plant on a shared production line.[13][14][15][16][17]
Engine reference
| Engine code | Vehicle | Year | Displacement | Bore x stroke | Weight | C.R. | Max. power | Max. torque | Features |
|---|---|---|---|---|---|---|---|---|---|
| VR30DDTT | Infiniti Q50/Infiniti Q60 Nissan Skyline Nissan Z (RZ34) |
2016-present | 2,997 cc (3.0 L; 182.9 cu in) | 86 mm × 86 mm (3.39 in × 3.39 in) | approx.429.5 lb (194.8 kg) | 10.3:1 | 300 hp (224 kW) @ 6,400 rpm
400–420 hp (298–313 kW) @ 6,400 rpm (High Output) |
295 lb·ft (400 N·m) @ 1,600-5,200 rpm
350–384 lb·ft (475–521 N·m) @ 1,600-5,200 rpm (High output) |
DOHC per bank Variable inlet and outlet cam phasing Twin Turbo High pressure multi-split direct injection |
| VR38DETT | Nissan GT-R | 2007–present | 3,799 cc (3.8 L; 231.8 cu in) | 95.5 mm × 88.4 mm (3.76 in × 3.48 in) | approx.608 lb (276 kg) | 9.0:1 | 480–565 hp (358–421 kW) @ 6,400/ 6,800 rpm 600 hp (447 kW) @ 6,800 rpm (NISMO) 711 hp (530 kW) (GT-R50) |
430–467 lb·ft (583–633 N·m) @ 3,200-6,000/ 3,300-5,800 rpm
481 lb·ft (652 N·m) @ 3,200-5,800 rpm (NISMO) |
DOHC per bank Variable inlet cam phasing Twin Turbo |
See also
- Nissan
- List of Nissan engines
- VQ Series
- Infiniti Q50
- Infiniti Q60
- Nissan Skyline
- Nissan Z (RZ34)
- Nissan GT-R
References
- ↑ 2016 Infiniti Q50 3.0t spec sheet
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- ↑ 「東京オートサロン2016」出展概要を発表
- ↑ مجلة أفكار العربية : Nissan GT-R Nismo VR38DETT Engine Tuning Menu Concept - Tokyo Auto Salon 2016
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