Nissan VQ engine
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| Nissan VQ engine | |
|---|---|
| Manufacturer | Nissan Motor Co., Ltd. |
| Production: | 1994– |
| Predecessor: | Nissan VE engine Nissan VG engine |
The VQ engine is a 2.0 L to 4.0 L V6 piston engine from Nissan. It is an aluminum block DOHC 4-valve design with aluminum heads. It is fitted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Later versions feature various implementations of variable valve timing and replace MPFI with direct fuel injection (marketed as NEO-Di). This engine family is widely considered to be the world's benchmark V6 engine for its combination of smoothness, reliability and high power output. The VQ series is the only engine to be honored by Ward's 10 Best Engines list every year since the list's inception.
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[edit] VQ20DE
This DOHC 24-valve 2.0 L (1995 cc) V6 produces 150 to 160 PS (110 to 118 kW) @6400 rpm and 137 to 145 ft·lbf (186 to 196 Nm) @4400 rpm (lean burn). Bore and stroke dimensions are 76 mm and 73.3 mm respectively, along with a compression ratio ranging from 9.5 to 10.0:1.
It is fitted to the following vehicles:
- 1994–2002 Nissan Cefiro A32 and A33
- 1995–1999 Nissan QX A32
- 2002–present Nissan Cefiro (165 hp)
[edit] VQ23DE
The VQ23DE is a 2.3 L (2349 cc) engine equipped with CVTC (Continuously Variable-valve Timing Control). It produces 173 PS (127 kW) @6000 rpm and 166 ft·lbf (225 Nm) @4400 rpm. Bore and stroke are 85 mm and 69 mm with a compression ratio of 9.8:1.
It is fitted to the following vehicles:
- 2003–present Nissan Teana 230JM-J31
- 2006–present Renault Samsung Motors SM7 (170 PS) (Neo VQ23)
[edit] VQ25DE
This engine is similar to the VQ20DE, but has a 2.5 L (2495 cc) displacement. Bore and stroke are 85 mm and 73.3 mm, with a compression ratio of 10 to 10.3:1. It produces 190 PS to 210 PS (140 kW to 154 kW) @6400 rpm and 174 to 195 ft·lbf (236 to 265 Nm). Later versions produce 186 PS (136 kW) @6000 rpm and 171 ft·lbf (232 Nm) @3200 rpm.
It is fitted to the following vehicles:
- 1994–1998 Nissan Cefiro A32
- 1996–1999 Nissan Leopard FY33
- 1997–1999 Nissan Cedric Y33
- 2004–present Nissan Fuga
- 2004–present Nissan Elgrand E51
[edit] VQ25DD
The 2.5 L (2495 cc) VQ25DD uses direct fuel injection (NEO-Di) and eVTC (electronically controlled continuously variable valve timing). It produces 210 to 215 PS (154 to 158 kW) @6400 rpm and 195 to 199 ft·lbf (264 to 270 Nm) @4400 rpm. Bore and stroke are 85 mm and 73.3 mm respectively, with a high compression ratio of 11 to 11.3:1.
It is fitted to the following vehicles:
- 1999–2002 Nissan Cefiro A33, 210 PS (JDM)
- 1999–2004 Nissan Cedric
- 2001–2006 Nissan Skyline V35, 210 PS
- 2001–present Nissan Stagea M35, 215 PS
[edit] VQ25DET
The VQ25DET is a turbocharged 2.5 L (2495 cc) engine with CVTC. It produces 280 PS (206 kW) @6400 rpm and 300 ft·lbf (407 Nm) @3200 rpm. Bore and stroke are 85 mm and 73.3 mm. Compression ratio is 8:5:1.
It is fitted to the following vehicles:
- 2001–2004 Nissan Stagea 250tRS FOUR V and RX FOUR (M35)
[edit] VQ25HR
Nissan updated the VQ line for 2007. The 2.5 L VQ25HR (for "High Revolution" or "High Response") is only available on rear wheel drive vehicles. It produces 225 PS (222 hp/165 kW) at 6,800 RPM and 26.8 kg·m (263 N·m/194 ft·lbf) 4,800 RPM with a compression ratio of 10.6:1. It has CVTC, microfinished camshafts and redline of 7,500 RPM. The intake is a high-flow tuned induction system.
A Nissan Skyline equipped with this engine was used by Nissan engineers to demonstrate that it was possible to achieve an overall fuel economy of 6.14 L/100 km (38.3 mpg U.S.) by travelling 1,024.3 kilometers (636.5 mi) on one tank of petrol.[1]
It is fitted to the following vehicles:
- 2006–present Nissan Skyline V36 250GT Sedan
[edit] VQ30DD
The 3.0 L (2987 cc) VQ30DD features direct injection (NEO-Di) and eVTC. It produces 230 to 240 PS (169 to 177 kW) @6400 rpm and 217 to 228 ft·lbf (294 to 308 Nm) @3600 rpm. In the Nissan Stagea M35 it produces 260 PS (191 kW) @6400 rpm and 239 ft·lbf (324 Nm) @4800 rpm.
It is fitted to the following vehicles:
- 1997–1999 Nissan Leopard JY33
- 1999–2004 Nissan Cedric Y34
- 1999–2004 Nissan Gloria Y34
- 2001–2004 Nissan Skyline V35
- 2001–2004 Nissan Stagea M35
[edit] VQ30DE
The 3.0 L (2987 cc) VQ30DE produces 193 to 230 PS (190 to 227 hp/142 to 169 kW) @6400 rpm and 205 to 217 ft·lbf (277 to 294 Nm) @4400 rpm. Bore and stroke are 93 mm and 73.3 mm with a compression ratio of 10.0:1. The VQ30DE was on the Ward's 10 Best Engines list from 1995 through 2001. It is an aluminum open deck block design with microfinished internals and relatively light weight.
An improved version of the VQ30DE is known by the designation VQ30DE-K. The K designation stood for the Japanese word kaizen which translates to "improvement". The engine was used from 2000-2001 Nissan Maxima and adds a true dual-runner intake manifold for better high-end performance compared to some earlier Japanese and Middle-East market versions of this engine. The VQ30DEK produces 226 PS (222 hp/166 kW). The 1995-1999 US spec VQ30DE was equipped with only a single runner intake manifold.
It is fitted to the following vehicles:
- 1994–1998 Nissan Cefiro (A32), 217 hp (162 kW) and 206 ft·lbf (279 Nm)
- 1995–1999 Nissan QX (A32)
- 1995–1999 Nissan Maxima (A32), 190 hp (142 kW) and 214 ft·lbf (291 Nm)
- 1996–1999 Infiniti I30 (A32), 190 hp (142 kW)
- 2000–2001 Nissan Maxima (A33), 222 hp (166 kW); 227 hp (169 kW) for Anniversary Edition SE
- 2000–2001 Infiniti I30 (A33), 227 hp (169 kW)
- 1999–2003 Nissan Bassara U30, 220 hp (164 kW) and 206 ft·lbf (280 Nm)
- 1998–2003 Nissan Presage U30, 220 hp (164 kW) and 206 ft·lbf (280 Nm)
[edit] VQ30DET
The 3.0 L (2987 cc) VQ30DET is a turbocharged version of the VQ30DE. Bore and stroke are the same at 93 mm and 73.3 mm respectively, and it has a compression ratio of 9.0:1. It produces 270 PS (199 kW) and 271 ft·lbf (368 Nm) From 1998 onwards, it produces 280 PS (209 kW) @6000 rpm and 285 ft·lbf (387 Nm) @3600 rpm.
It is fitted to the following vehicles:
- 1995–2004 Nissan Gloria Y33,Y34
- 1995–2004 Nissan Cedric Y33,Y34
- 1997–1999 Nissan Leopard Y33
- 2001–present Nissan Cima F50
[edit] VQ30DETT
The twin-turbo VQ30DETT is an engine used in Nissan's race cars, primarily in the Super GT (formerly the JGTC). First used on the Skyline GT-R race cars during the 2003 season, this engine currently powers the Fairlady Z race cars - homologation rules allow them to use the VQ30DETT in lieu of the stock VQ35DE. Race output of this engine is estimated at around 480 PS (473 hp/353 kW).
It is fitted to the following vehicles:
- 2003–present Skyline GT-R JGTC race cars
- 2004–present Fairlady Z JGTC race cars
- 2005–present Fairlady Z Super GT race cars
- 2006–present Fairlady Z Super GT race cars
[edit] VQ35DE
The 3.5 L (3498 cc) VQ35DE is used in many modern Nissan vehicles. It has a bore of 95.5 mm and stroke of 81.4 mm. It uses the same block found in the VQ30DE, but adds variable valve timing. Power output ranges from 231 PS (228 hp/170 kW) to 302 PS (298 hp/222 kW) and torque from 334 N·m (246 ft·lbf) to 363 N·m (268 ft·lbf).
The VQ35DE is built in Iwaki and Decherd, TN. It was on the Ward's 10 Best Engines list from 2002 through to 2007. It features forged steel connecting rods, a microfinished one-piece cast camshaft, and Nissan's nylon intake manifold technology. It has low-friction molybdenum-coated pistons and the intake system is a high-flow tuned induction system.
A modified version of the VQ35DE, called the S1, is produced by Nismo (Nissan's motorpsorts and performance division) for the Fairlady Z S-Tune GT. It produces 300 PS (296 hp/221 kW)) at 7,200 RPM - a higher rev-limit than that of the original VQ35DE. The 350Z GT-S concept has a VQ35DE equipped with a switchable Novidem supercharger, producing around 281 kW (377 hp) with the supercharger switched on. The engine may possibly be referred to as the VQ35DER if the GT-S goes into production.
It is fitted to the following vehicles: North American
- 2001–2004 Nissan Pathfinder (240 hp)
- 2001–2004 Infiniti QX4 (240 hp)
- 2002–2004 Infiniti I35 (255 hp)
- 2002–present Nissan Altima (240 to 270 hp)
- 2002–present Nissan Maxima (255 hp to 290 hp)
- 2003–2006 Nissan 350Z (287 to 296 hp)
- 2003–2006 Infiniti G35 sedan (260 hp to 298 hp)
- 2003–2007 Infiniti G35 coupe (280 hp to 298 hp)
- 2003–present Infiniti FX35 (275 hp)
- 2003–present Nissan Murano (Z50) (245 hp to 265 hp)
- 2004–present Nissan Quest (240 hp)
- 2006–present Infiniti M35 (275 hp)
JDM and other markets
- 2000–present Nissan Elgrand (245 hp)
- 2001–present Nissan Stagea (272 hp)
- 2001–present Renault Vel Satis (241 hp)
- 2002–present Nissan Skyline (V35)(275+ hp)
- 2003–present Nissan Teana (350JM-J31) (231 hp)
- 2003–present Nissan Presage
- 2003–present Renault Espace (241 hp)
- 2004–present Nissan Fuga (275 hp)
- 2004–present Nissan Cefiro (258 hp)
- 2005–present Nismo Fairlady Z S-Tune GT (295 hp) (VQ35DE S1 engine)
- 2006–present Renault Samsung Motors SM7 (217 PS) (Neo VQ35)
[edit] VQ35HR
Nissan updated the VQ line for 2007 with the addition of the 3.5 L VQ35HR (for "High Revolution" or "High Response"). It produces 315 PS (311 hp/232 kW) at 6,800 RPM and 36.5 kg·m (358 N·m/264 ft·lbf) at 4,800 RPM, using a compression ratio of 10.6:1. It has NDIS (Nissan Direct Ignition System) and CVTC with hydraulic actuation on the intake cam and electromagnetic on the exhaust cam. Redline is 7,500 RPM. The intake is a high-flow tuned induction system.
It is fitted to the following vehicles:
- 2007–present Infiniti G35 sedan
- 2007–present Nissan Skyline V36 350GT Sedan
- 2007–present Nissan 350Z
- 2008–present Infiniti EX Crossover SUV
[edit] VQ37VHR
The VQ37VHR is a 3.7 L (3696 cc) engine with an increased compression ratio of 11.0:1, with a 95.5 mm bore and 86 mm stroke, while redline remains at 7500 RPM. It is rated at 333 PS (328 hp/245 kW) at 7,000 RPM and 37 kg·m (363 N·m/268 ft·lbf) at 5,200 RPM. Although the engine gains only 0.5 kg·m (5 N·m/4 ft·lbf) over the VQ35HR in peak torque, the torque curve itself is improved and flattened for better response. It marks the first use of Nissan's VVEL (Variable Valve Event and Lift) system on a production vehicle.
It is fitted to the following vehicles:
- 2008–present Infiniti G37 Coupe
- 2008–present Nissan Skyline V36 370GT Coupe
[edit] VQ40DE
The VQ40DE is a 4.0 L (3954 cc) variant of the VQ35DE due to a longer stroke. Bore and stroke are 95.5 × 92.0 mm.
Improvements include continuously variable valve timing, variable intake system, silent timing chain, hollow and lighter crankshafts and friction reduction (microfinished surfaces, moly coated pistons). It has Nissan's direct ignition system with platinum-tipped spark plugs. It produces 268 to 273 PS (265 to 270 hp/198 to 201 kW) @5600 rpm and 284 ft·lbf (385 Nm) @4000 rpm.
It is fitted to the following vehicles:
- 2005–present Nissan Frontier
- 2005–present Nissan Xterra
- 2005–present Nissan Pathfinder (270 hp @5600 rpm; 291 ft·lbf (395 N·m) @4000 rpm)
[edit] See also
[edit] Sources
- Powerful Pair: Nissan says new V6 engines increase horsepower, fuel economy. AutoWeek. Retrieved on August 29, 2006.
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