Nissan QR engine

src: upload.wikimedia.org

The QR family of inline-4 piston engines by Nissan was introduced in 2000 and ranges from 2.0 Ã, L to 2.5 L L in displacement. These motors are aluminum, dual overhead camshafts (DOHC), four valve designs with variable valve timings and optional direct injection.

Video Nissan QR engine

QR20DE

The 2.0Ã, L (1998Ã, cc) QR20DE produces 147Ã, hp (110Ã, kW) and 148 Ã, Â £ Ã, Â · ft (200 NÃ, Â · m) with stroke 80.3 mm and compression ratio 9.9: 1. [1] The QR20DE is replaced by MR20DE.

Aplikasi kendaraan:

• 2001-2007 Nissan X-Trail T30 (140Ã ‚ hp)
• 2001-2007 Nissan Primera P12
• 2002-sekarang Nissan Serena C24, 145Ã hp (108Â kW)
• 2003-2008 Nissan Teana Sentra di AS J31, 145 hp (108 kW)
• 2001-2005 Nissan Wingroad Y11
• 2002-2005 Nissan Avenir W11
• 2001-2004 Nissan Prairie M12

Maps Nissan QR engine

QR20DD

The QR20DD is similar to QR20DE but NEO's direct injection feature to improve fuel economy and to reduce emissions. [2] This produces 150 hp (110 kW).

Vehicle app:

• 2000-2004 Nissan Bluebird Sylphy

src: jdmengineworld.com

QR25DE

The QR25DE is a 2.5a, L (2488Ã, cc) variant constructed with a cast steel connecting rod, steel timing chain, reversing axle balance, and aluminum intake manifold. The boring machine is 89 mm with a stroke of 100 mm and the compression ratio starts from 9.5: 1 to 10.5: 1 depending on the vehicle.

Output rated 175 hp (130 kW) at 6000 rpm with 180 lbÃ, Â · ft (244 Ã, Â ° C) torque at 4000 rpm in Altima 2.5 and SE-R models. The Altimas that meets the PZEV standard produce 170 hp (130 kW) and 175 lb torque? Ft (237Ã, N? M). [3] In the 2005 Nissan Frontier, the QR25DE produced 152 hp (113 kW) and 171 lb of torque? Ft (232Ã, N? M). [4]

Vehicle app:

• 1999-2003 Nissan Bassara- 165Ã, hp (123Ã, kW)
• 2001-2005 Nissan Serena C24- 158Ã, hp (118Ã, kW)
• 2001-2007 Nissan X-Trail T30 APEC export version- 178Ã, hp (133Ã, kW)
• 2002-2006 Nissan Sentra SE-R-165Ã, hp (123Ã, kW) & amp; SE-R Spec V-175Ã, hp (130Ã, kW)
• 2002-2009 Nissan Presage-165 hp (123 kW)
• 2002-present Nissan Altima 170Ã, hp (127Ã,kW) to 182Ã, hp (136Ã,w)
• 2003-2005 Nissan Teana-160 hp (119 kW)
• 2003-present Nissan Murano (Japan)
• 2005-present Nissan Frontier-152Ã, hp (113 kW)
• 2007-2012 Nissan Sentra SE-R-177Ã, hp (132Ã, kW) & amp; SE-R Spec V-200Ã, hp (149Ã,kW)
• 2007-2011 Nissan Altima Hybrid 158 hp (118 kW), combined 198 hp (148 kW)
• 2007-present Nissan X-Trail T31- 169Ã, hp (126Ã, kW)
• 2007-present Renault Koleos TR25- 169Ã, hp (126Ã, kW)
• 2008-present Nissan Rogue- 170Ã, hp (127Ã,w)
• 2009-2012 Suzuki Equator- 152 hp (113 kW)
• 2013-present Nissan Teana-165 hp (123 kW)
• 2013-present Nissan X-Trail T32- 169Ã, hp (126Ã, kW)
• 2010-present Nissan Elgrand E52
• 2018-present Nissan Terra-180Ã, hp (134Ã,w)

2007 QR25DE

The revised QR25DE was found in 2007 Sentra, Altima, Rogue, etc. Has a number of improvements over the older QR25DE. These include:

• The simpler, the larger the intake manifold intake path diameter replaces the old double track design. (Note: California's emission model has a swirling control valve located in the intake)
• The revised shape of the piston crown to support a higher compression ratio of 9.6: 1. (10.5: 1 in SE-R Spec V Centers)
• The balancing system has been moved back slightly from the crank pulley to a more centric location on the block.
• Updated pivot cam profile.
• Reinforced connecting rod.
• Reduces possible friction through extensive use of Nissan coatings on pistons, journaling pads, etc.
• Additional engine mounted on top of motor, side of pulley.
• Higher rev limit and increased power output.

src: upload.wikimedia.org

QR25DD

The QR25DD is similar to QR25DE but increases the compression ratio to 10.5: 1 and includes direct injection. It produces 170 hp (125 kW) and 181 lbÃ, Â · ft (245 Ã, Â ° C). [5]

Vehicle app:

• 2002-2006 Nissan Primera P12 (JDM)

src: jdmengineworld.com

QR25DER

The QR25DER is similar to QR25DE but has a supercharger for increased power and is coupled with a 15 kW electric motor, a Dual Clutch System, and a lithium-ion battery to improve fuel efficiency. The engine has a compression ratio of 9.1: 1 and produces a combined 250 hp (190 kW) at 5600 rpm and 243 lb ft (329 N m) at 3600 rpm.

Vehicle app:

• 2014 - 2015 Nissan Pathfinder Hybrid
• 2016 only Nissan Murano Hybrid
• 2014 - 2017 Infiniti QX60 Hybrid

src: jdmengineworld.com

See also

• List of Nissan engines

src: images-na.ssl-images-amazon.com

References

• "Nissan Altima 2007 review"
• "Nissan Altima 2007 specification"
• "Nissan Altima 2006 specification"
• "2006 Nissan Frontier Specifications
• "Nissan Sentra 2006 Specifications"
• "Global Vehicles", by Jack Yamaguchi, "Automotive Engineering International", June 2001, taken June 29, 2006
• "NTB03070 Nissan technical bulletin service regarding precatalyst engine failure"
• "NTB06045 Nissan technical service bulletin on low oil level"
• "NTB05058 Nissan technical service bulletins regarding power valve screws"
• "Road Test: 2002 Nissan Sentra SE-R" by Josh Jacquot, "SportCompactCar", December 2001, taken June 26, 2006
• "Technobabble: December 2001 by Dave Coleman," SportCompactCar ", December 2001, taken June 26, 2006

src: jdmengineworld.com

External links

• "B15U.com - Nissan Sentra Forum"
• "B15sentra.net - Another Nissan forum for B15 and B16 Sentras."
• "AllSentra.com - Forum for all Sentras"

Source of the article : Wikipedia