Nissan VG engine
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The VG engine family consists of V6 piston engines designed and produced by Nissan for several vehicles in the Nissan lineup. The VG series started in 1983 becoming Japan's first mass produced V6 engine. VG engines displace between 2.0 L and 3.3 L and feature an iron block and aluminum head. The early VG30 featured SOHC, 12 valve heads. A later revision featured a slightly different block, and DOHC, 24 valve heads with Nissan's own version of variable valve timing for increased high RPM efficiency. The block is a particularly strong design with a single piece main bearing cap, and is capable of reliably supporting more than 1,000 hp (750 kW).[citation needed] The production blocks and production head castings were used successfully in the Nissan GTP ZX-Turbo and NPT-90 race cars which won the IMSA GT Championship three years in a row.
The VG series engine found its way into thousands of Nissan vehicles, starting in 1984. The VG design was retired in 2004, as all models received the VQ series engine instead.
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[edit] VG20E
The VG20E is a 2 L (1998 cc) engine produced from 1984 on. It produces 126 hp (94 kW).
Applications:
[edit] VG20ET
The VG20ET is the same as the VG20E, but with turbocharger. The VG20ET produces 170 hp (130 kW). VG20ET - This SOHC motor debuted at the same time as the VG20E. Also coming with the Y30, this motor was known as the "Jet Turbo", and came with the Leopard models XS, and XS-II Grand Selection. Contrary to the VG30ET that came out in the US, the VG20ET came with an intercooler to push the horsepower output to 155 hp (116 kW), a great jump from the normally aspirated VG20E. The turbo included with the VG20ET had two different settings. At low speeds, the turbo's flap (wastegate?) would stay closed improving the response at low RPMS. At high speeds, the flap would stay open, decreasing resistance and increasing exhaust flow. At its maximum flow, the flap would open at an angle of 27-degrees, while the A/R ranged from 0.21 ~ 0.77. Being that the VG20ET had a short stroke (78x69.7mm), it was thought to have insufficient low end torque. Nevertheless, the VG20ET was a great improvement over the VG20E.
It was used in the following vehicles:
- Nissan 200Z (Z31)
- Nissan 200ZG (Z31)
- Nissan Laurel Medallist (C32)
[edit] VG20DET
The VG20DET is an 2,0L engine with DOHC and a turbocharger. It produces 210 hp (160 kW).
It was used in the following vehicles:
- Nissan Leopard (F31)
- Nissan Gloria/Nissan Cedric (Y31)
[edit] VG20P
The VG20P is the autogas LPG (Liquified petroleum gas) version of the VG20. It produces 99 PS (98 hp/73 kW) @5600 rpm and 149 nm @2400 rpm. And later (in 2004-2005) it produces 105 PS (104 hp/77 kW) @6000 rpm and 152 N·m (112 ft·lbf) @2400 rpm. It is an OHC 12 valve engine.
It is used in the following vehicles:
1987-1991 Nissan Cedric Y31
[edit] VG30S
The VG30S is a 3L (2,960 cc) SOHC 12 valve engine with an electronicle carburetor that produces 148 PS (146 hp/109 kW) @4800 rpm and 234 N·m (173 ft·lbf) @3600 rpm.
It is used in the following:
- Nissan Cedric Y31
[edit] VG30i
The VG30i is a 3 L (2960 cc) engine produced from 1986 through 1989 and featured a throttle body fuel injection system. It has a long crank snout, a cylinder head temperature sensor positioned behind the timing belt cover, and a knock sensor in the cylinder valley. It produces 140 PS (138 hp/103 kW) @4800 rpm and 226 N·m (167 ft·lbf) @2800 rpm.
Applications:
- 1986-1989 Hardbody Truck
- 1986-1989 Nissan Pathfinder
[edit] VG30E
The 3.0 L (2960 cc) VG30E produced 153 hp (114 kW) and 182 ft·lbf (247 N·m). Bore is 3.43 in (87 mm) and stroke is 3.27 in (83 mm). In 300ZX form, it produced 160 hp (120 kW) and 174lb-ft. On April 1987 the "W" series VG30 was released, seeing 5 more horses for a total of 165; however, torque ratings remained the same. In 1989, the Maxima received the 160 hp (120 kW) rating, but also used a variable intake plenum that let it make 182lb-ft@3200 rpm. Strangely, the 300ZX never received the variable intake plenum.
It was used in the following vehicles:
- 1984–1989 Nissan 300ZX/Nissan Fairlady Z
- 1984–1994 Nissan Maxima
- 1987–1988 Nissan 200SX SE
- 1990–1991 Infiniti M30/Nissan Leopard
- 1990–1995 Hardbody Truck
- 1990–1995 Nissan Pathfinder/Nissan Terrano
- 1992–1999 Nissan Gloria/Nissan Cedric (179 hp)
- 1992–1998 Nissan Quest/Mercury Villager (modified to become a non-interference design)
[edit] VG30ET
The 3.0 L (2960 cc) VG30ET was available in early production with a single Garrett T3 turbocharger (6.7 psi) and a 7.8:1 compression ratio. The USDM version produced 200 hp (150 kW) and 227 ft·lbf (308 N·m). In April of 1987, the "W"-Series VG30 was released, horsepower was bumped to 205 hp (153 kW). ALL '87 models featured a T3 turbocharger (6.7 psi). In 1988 compression ratio changed to 8.3:1 and the turbo changed to a single Garrett T25 turbocharger (4.5 psi) to reduce turbo lag. No VG30ET was ever factory equipped with an intercooler as they featured low boost pressure for fast response.
It was used in the following vehicles:
- 1984–1989 Nissan 300ZX Turbo
- 1984–1986 Nissan Fairlady Z
- Nissan Leopard
- Nissan Gloria/Nissan Cedric (230 PS)
[edit] VG30DE
There are two versions of the VG30DE. The first version was introduced in 1986 on the Japanese 300ZR Z31 and was never sold in North America. This version has only 1 throttle body, facing the left side of the vehicle, unlike the second version of the VG30DE, which has 2 throttle bodies facing the front of the vehicle.
The 3.0 L (2960 cc) VG30DE produces 196 hp (146 kW) and 188 ft·lbf (255 N·m). Bore is 3.43 in (87 mm) and stroke is 3.27 in (83 mm).
It is used in the following vehicles:
- 1990–1996 Nissan 300ZX
- 1987–1999 Nissan Fairlady Z
- 1993–1998 Infiniti J30 and Nissan Leopard
- 1992–1995 Nissan Gloria and Cedric
- 1989–1991 Nissan Cima
[edit] VG30DET
The VG30DET is a 3.0-liter, 24-valve, quad-cam, VTC-equipped engine equipped with a T3 (Nissan N1 Type) 4-bolt Garrett Turbo running between 7.5 and 11.5 psi. It generated 222 to 255 hp (190 kW) and measuring between 198 and 236 lb (107 kg) per foot depending on boost level, intake manifold, intercooler, and other factors.
While this engine is similar to the VG30DE, it used different heads and inlet manifold. Contrary to popular belief, it was NOT available in the Nissan 300ZR model - the 300ZR only had an early version of the VG30DE (no turbo). The engine was available in the Cedric, Gloria, Cima and Leopard chassis.[1] It's a single-turbo engine that was used from 1987 through 1995 in Japan and the predecessor for the VG30DETT, the engine that was released in the 1990 300ZX Twin-Turbo.
It was available in the following vehicles:
- Nissan Cedric Y32 (1991-1994)
- Nissan Gloria
- Nissan Cima FY31 (1988-1991)
- Nissan Leopard
[edit] VG30DETT
The 3.0 L (2960 cc) VG30DETT produces 280 hp (210 kW) and 283 ft·lbf (384 N·m) when mated with a 4 speed automatic transmission. When used with a 5spd manual transmission, it was rated at 300 hp (220 kW) and 283tq. It featured twin T25 turbochargers, twin intercoolers.
It is used in the following vehicles:
- 1990–1999 Nissan Fairlady Z (300ZX) Twin Turbo
[edit] VG33E
The VG33E is a 3.3 L (3275 cc) version built in Smyrna, TN. Bore is 91.5 mm (3.60 in) and stroke is 83 mm (3.3 in). Output was 180 hp (134 kW) at 4800 rpm with 202 ft·lbf (274 Nm) of torque at 2800 rpm. In current production for the Nissan Paladin produced by Zhengzhou Nissan in China it produces 168 hp (125 kW) at 4800 rpm with 195 ft·lbf (265 Nm) of torque at 3600 rpm. It has a cast iron engine block and aluminum SOHC cylinder heads. It uses SFI fuel injection, has 2 valves per cylinder with roller followers and features forged steel connecting rods, a one-piece cast camshaft, and a cast aluminum intake manifold.
It is used in the following vehicles:
- 1996–2000 Nissan Pathfinder
- 1997–2000 Infiniti QX4
- 1999–2004 Nissan Frontier
- 2000–2004 Nissan Xterra
- 1998–2004 Nissan Elgrand
- 1999–2002 Nissan Quest/Mercury Villager
- 200?–present Nissan Paladin
[edit] VG33ER
The 3.3 L (3275 cc) VG33ER is supercharged and produces 210 hp (157 kW) at 4800 rpm with 246 ft·lbf (334 Nm) of torque at 2800 rpm.
It is used in the following vehicles:
- 2001–2004 Nissan Frontier SE/SC
- 2001–2004 Nissan Xterra SE/SC
[edit] See also
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