The VQ is a family of V6 automobile petrol engines developed by Nissan and produced in displacements varying from 2.0 L to 4.0 L. Designed to replace the VG series, the all-aluminium 4-valve per cylinder DOHC design debuted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Changes from the VG engine include switching to a timing chain from a timing belt, and relocating the water pump from the outside of the engine to inside the timing cover where the pump is driven by the timing chain. Later versions featured various improvements, such as variable valve timing, and NEO-Di designated VQ engines replace MPFI with direct fuel injection. Only the VQ25DE and VQ35DE engines are branded as the V4U and V4Y respectively within Renault.

The VQ series engine was honored in a record 14-straight selections by Ward's 10 Best Engines from the list's inception until 2008.Nissan VQ Among Crowded V-6 Field, wardsauto.com, October 12, 2015

Versions 1st gen (1994-) VQ20DE VQ25DE 1st

DE series

VQ20DE The VQ20DE is an aluminium block, aluminium head, DOHC 24-valve V6, with a bore and stroke and compression ratio ranging from 9.5 to 10.0:1. In base form it produces to at 6400 rpm and at 4400 rpm (lean burn).

It is fitted to the following vehicles: 1994–2003 Nissan Cefiro A32 and A33 1995–1999 Nissan QX A32 1998–2005 Renault Samsung SM5 KPQ/A32

VQ23DE

The VQ23DE displaces 2.3 L (2349 cc) and is eqontinuously Variable-valve Timing Control). Bore and stroke are , and compression ratio is 9.8:1. It produces at 6000 rpm and at 4400 rpm.

It is fitted to the following vehicles: 2003–2008 Nissan Teana J31 2006–2011 Renault Samsung SM7 (Neo VQ23) 2008–2011 Renault Safrane (Neo VQ23)

VQ25DE (Renault V4U) VQ25DE displacement 2,496 cc bore & stroke 85 mm × 73.3 mm compression ratio 9.8:1 ~ 10.3:1 produces PS 190 ~ 210 @ 6400rpm produces torque (kgf⋅m) 24.06 ~ 26.92 @ ????rpm produces torque (N⋅m) 236 ~ 264 @ ????rpm

The VQ25DE is similar to the VQ20DE, but is .5 L larger, at displacement. Bore and stroke are , with compression ratios ranging from 9.8 to 10.3:1. It produces at 6400 rpm and of torque. Later versions produce at 6000 rpm and at 3200 rpm. In some Nissans, this engine was replaced by the QR25DE.

1994–1998 Nissan Cefiro (A32) 2000–2003 Nissan Cefiro (A33) 1996–1999 Nissan Leopard (FY33) 1997–1999 Nissan Cedric (Y33) 2004–2007 Nissan Fuga (Y50) 2004–2007 Infiniti M (Y50) 2004–2010 Nissan Elgrand (E51) 2008–2011 Nissan Teana (J32) 1998–2005 Renault Samsung SM5 (KPQ/A32) 2010–2019 Renault Samsung SM5 (L43) 2010–2015 Renault Latitude (L43)

VQ25DET The VQ25DET is a turbocharged engine with CVTC. Its bore and stroke are , with a compression ratio of 8.5:1. It produces at 6400 rpm and at 3200 rpm.

It is fitted to the following vehicles: 2001–2004 Nissan Stagea 250t RS FOUR V, 250t RX FOUR, AR-X FOUR and Autech AXIS (NM35)

VQ30DE

VQ30DE displacement 2,988 cc bore & stroke 93 mm × 73.3 mm compression ratio 10.0:1 produces PS 193 ~ 230 at 6400rpm produces torque (kgf⋅m) 28.35 ~ 29.98 @ 4400rpm produces torque (N⋅m) 278 ~ 294 at 4400rpm

The VQ30DE has a bore and stroke of respectively with a compression ratio of 10.0:1. It produces to at 6400 rpm and at 4400 rpm. The VQ30DE was on the Ward's 10 Best Engines list from 1995 through 2001. It is an aluminium open deck block design with microfinished internals and a relatively light weight.

An improved version of the VQ30DE is known by the designation VQ30DE-K. The K designation stands for the Japanese word kaizen which translates to "improvement". The engine was used in the 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 (2000-2001 Infiniti I30 models added an additional fenderwell intake, boosting power to ). The VQ30DEK produces . The 1995–1999 US spec VQ30DE was equipped with only a single runner intake manifold.

1994–1998 Nissan Cefiro (A32), and 1995–1999 Nissan QX (A32) 1995–1999 Nissan Maxima (A32), and 1996–1999 Infiniti I30 (A32), and 2000–2001 Nissan Maxima (A33), and ; for Anniversary Edition SE 2000–2001 Infiniti I30 (A33), and 1999–2003 Nissan Bassara U30, and 1998–2003 Nissan Presage U30, and 2002–2004 Dallara SN01, World Series by Nissan 1995–1999 Nissan Gloria (Y33)

VQ30DET The VQ30DET is a turbocharged version of the VQ30DE. Bore and stroke remain the same at respectively, and it has a compression ratio of 9.0:1. It produces and . From 1998 onwards, it produces at 6000 rpm and at 3600 rpm.

It is fitted to the following vehicles: 1995–2004 Nissan Gloria Y33, Y34 1995–2004 Nissan Cedric Y33, Y34 1996–1999 Nissan Leopard Y33 1996–2001 Nissan Cima Y33 2001–2007 Nissan Cima F50

VQ30DETT

The twin-turbo VQ30DETT is an engine used only in Nissan's racing cars, primarily in the Super GT series (formerly the JGTC). First used on the Skyline GT-R JGTC race cars during the 2002 season, this engine subsequently powered 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 .

The VQ30DETT was replaced in 2007 by the VK45DE for use in the Super GT Fairlady Z's and later in the GT-R.

It was utilized in the following vehicles: 2002–2003 Skyline GT-R JGTC race cars (Non-Production) 2004 Fairlady Z JGTC race cars (Non-Production) 2005–2006 Fairlady Z Super GT race cars (Non-Production)

VQ35DE (Renault V4Y) VQ35DE displacement 3,498 cc bore & stroke 95.5 mm × 81.4 mm compression ratio 10.0:1, 10.3:1, or 10.6:1 produces PS 231 ~ 304 @ ????rpm produces torque (kgf⋅m) 34.05 ~ 37.83 @ ????rpm produces torque (N⋅m) 334 ~ 371 @ ????rpm

The VQ35DE is used in many modern Nissan vehicles. Bore and stroke are . It uses a similar block design to the VQ30DE, but adds variable valve timing (CVTCS) for the intake. It produces from of power and of torque depending on the application.

The VQ35DE is built in Iwaki and Decherd, TN. It was on the Ward's 10 Best Engines list from 2002 through to 2007 and again in 2016. It features forged steel connecting rods, a microfinished one-piece forged crankshaft, and Nissan's nylon intake manifold technology. It has low-friction molybdenum-coated pistons and the intake is a high-flow tuned induction system. Since its inception Nissan has improved upon the VQ35DE with changes keeping it an efficient class leading V6 engine. The engine was updated in 2005 as the VQ35DE Rev-Up. It included variable exhaust timing, a higher rev limit, and a revised oil pump, boosting the output to 297 crank horsepower.

A modified version of the VQ35DE, called the S1, is produced by Nismo (Nissan's motorsports and performance division) for the Fairlady Z S-Tune GT. It produces at 7,500 rpm, a higher rev-limit than that of the original VQ35DE.

North American Years Model Power output 2001–2004 Nissan Pathfinder 2013–2016 Nissan Pathfinder 2001–2003 Infiniti QX4 2001–2004 Infiniti I35 2002–2018 Nissan Altima 2002–2023 Nissan Maxima 2002–2006 Nissan 350Z 2002–2007 Infiniti G35 Coupe 2002–2006 Infiniti G35 Sedan 2002–2008 Infiniti FX35 2002–2024 Nissan Murano 2003–2016 Nissan Quest 2004–2008 Infiniti M35 2012–2013 Infiniti JX35 2013–2016 Infiniti QX60

JDM and other markets Years Model Power output 2000–2026 Nissan Elgrand 2001–2007 Nissan Stagea and above 2001–2009 Renault Vel Satis 2002–2006 Nissan Skyline 350GT Sedan 2003–2007 Nissan Skyline 350GT Coupe 2003–2018 Nissan Teana/Cefiro (350JM-J31) 2003–2009 Nissan Presage 2003–2014 Renault Espace 2003–2004 Tatuus Formula V6, Formula Renault V6 Eurocup 2004–2007 Nissan Fuga 350 GT 2005–2006 Nismo Fairlady Z S-Tune GT (VQ35DE S1 engine) 2006–2020 Renault Samsung SM7 (Neo VQ35) 2008–2015 Renault Laguna Coupé 2009 Renault Mégane Trophy 2010–2015 Renault Latitude 2012 Alpine A110-50

VQ40DE

The VQ40DE is a longer stroke variant of the VQ35DE. Bore and stroke are . Compression ratio is 9.7:1

Improvements include continuously variable valve timing, variable length/volume intake system, silent timing chain, hollow and lighter camshafts and friction reduction (microfinished surfaces, moly coated pistons). It is port fuel injected with platinum-tipped spark plugs. It produces at 5600 rpm and at 4000 rpm.

Years Model Power output Torque 2005–2019 Nissan Frontier (D40) at 5600 rpm at 4000 rpm 2005–2015 Nissan Xterra at 5600 rpm at 4000 rpm 2005–2012 Nissan Pathfinder at 5600 rpm at 4000 rpm 2009–2013 Suzuki Equator at 5600 rpm at 4000 rpm 2012–2021 Nissan NV1500 at 5600 rpm at 4000 rpm 2012–2021 Nissan NV2500 HD at 5600 rpm at 4000 rpm 2012–2021 Nissan NV Passenger at 5600 rpm at 4000 rpm 2017–2024 Nissan Patrol at 5600 rpm at 4000 rpm

DD series

The DD series is a variant of the DE series engines with direct fuel injection (NEO-Di) and eVTC (electronically controlled continuously variable valve timing).

VQ25DD

The engine has Bore and stroke of 85 mm and 73.3 mm respectively, with a compression ratio of 11 to 11.3:1. It produces at 6400 rpm and at 4400 rpm.

It is fitted to the following vehicles: 1999–2002 Nissan Cefiro A33, (JDM) 1999–2004 Nissan Cedric/Nissan Gloria 2001–2006 Nissan Skyline V35 250GT, 2001–2007 Nissan Stagea M35,

VQ30DD The engine has Bore and stroke of 93 mm and 73.3 mm, with a compression ratio of 11.0:1. It produces to at 6400 rpm and at 3600 rpm.

It is fitted to the following vehicles: 1997–1999 Nissan Leopard Y33 and 1999–2004 Nissan Cedric Y34 1999–2004 Nissan Gloria Y34 and 2001–2004 Nissan Skyline V35 300GT and 2001–2004 Nissan Stagea M35 and

VQ35DD

A larger 3.5L with direct-injection is released for 2017 model year.

It is fitted to the following vehicles: 2017–present Nissan Pathfinder 2017–2024 Infiniti QX60

VQ38DD A 3.8 L version with direct-injection is released for 2020 model year.

It is fitted to the following vehicles: 2020–present Nissan Frontier 2024–present Nissan Patrol

HR series

VQ25HR

VQ25HR displacement 2,496 cc redline 7,500 rpm bore & stroke 85 mm × 73.3 mm compression ratio 10.3:1 produces PS 235 @ 6,800 rpm produces torque (kgf⋅m) 26.82 @ 4,800 rpm produces torque (N⋅m) 263 @ 4,800 rpm

The 2.5 L VQ25HR (for "High Revolution" or "High Response") is only offered on longitudinally-mounted engine vehicles which tend to be rear wheel drive or all-wheel drive. Bore and stroke are , with a compression ratio of 10.3:1. It produces at 6,800 rpm and at 4,800 rpm. It has dual CVTC for both intake and exhaust, microfinished camshafts and a redline of 7,500 rpm.

It is fitted to the following vehicles: Years Model Power output 2006–2012 Nissan Skyline V36 250GT Sedan 2006–2012 Nissan Fuga 250GT 2006–2012 Infiniti M25 V6 Sedan 2010–2012 Infiniti EX25 (J50) Crossover SUV 2011–2012 Infiniti G25 Sedan 2012 Mitsubishi Proudia 250 VIP

VQ35HR

VQ35HR displacement 3,498 cc redline 7,500 rpm bore & stroke 95.5 mm × 81.4 mm compression ratio 10.6:1 HP 302 ~ 311 @ 6,800 rpm torque (Nm) 342~358 @ 4,800 rpm torque (ft-lb) 252.43 ~ 264.01 @ 4,800 rpm torque (kgf⋅m) 34.9 ~ 36.5 @ 4,800 rpm

The VQ35HR engine was first seen in the US with the introduction of the updated 2007 G35 Sedan model, which debuted in August 2006. Nissan updated the VQ line with the addition of the 3.5 L VQ35HR (for "High Revolution"). It produces (US market: using the revised SAE certified power benchmark) at 6,800 rpm and at 4,800 rpm, using a compression ratio of 10.6:1. As of 2009, the Infiniti EX35 produces and the same torque presumably due to tighter regulations.