Editing Toyota NZ engine (section)

=={{anchor|1NZ-FXE}}1NZ-FXE==
[[File:初代プリウス1NZ-FXE 豊田産業技術記念館.jpg|thumb|right|First generation 1NZ-FXE engine and 1CM electric motor (1997–2000 specification)]]
[[File:二代目プリウス1NZ-FXE 豊田産業技術記念館.jpg|thumb|right|Second generation 1NZ-FXE engine and 3CM electric motor]]

The '''1NZ-FXE''' is a hybrid {{convert|1497|cc|L|1|abbr=on|disp=flip}} version. Bore and stroke is {{convert|75x84.7|mm|in|2|abbr=on}}. It features forged steel [[connecting rod]]s and an aluminum [[intake manifold]]. The engine has a high physical [[compression ratio]] of 13.0:1, but the closing of the inlet valve is delayed, for an effective compression ratio of 9.5:1.<ref>{{Cite web|url=http://media.caranddriver.com/files/toyota-prius2004-toyota-prius-specs.pdf|title=Car and Driver 2004 Toyota Prius Specs}}</ref> The net result is that the engine has a greater effective expansion than compression—making it a simulated [[Atkinson cycle]], rather than a conventional [[Otto cycle]].

The reduction in cylinder charge means reduced torque and power output, but efficiency is increased. This combination makes the 1NZ-FXE suitable for use with the [[Hybrid Synergy Drive]], where peak torque and power demands can be met by the [[electric motor]] and [[Battery (electricity)|battery]]. Originally, the engine produces {{convert|58|PS|kW hp|0|abbr=on}} at 4000&nbsp;rpm with {{convert|102|Nm|lbft kg.m|0|abbr=on}} of torque at 4000&nbsp;rpm.<ref>{{cite web|url=https://www.goo-net-exchange.com/catalog/TOYOTA__PRIUS/1003892/|title=TOYOTA PRIUS PRIUS NAVI PACKAGE|website=www.goo-net-exchange.com}}</ref> In the 2000 update, the engine output was increased to {{convert|72|PS|kW hp|0|abbr=on}} at 4500&nbsp;rpm with {{convert|115|Nm|lbft kg.m|0|abbr=on}} of torque at 4200&nbsp;rpm.<ref>{{cite web|url=https://www.goo-net-exchange.com/catalog/TOYOTA__PRIUS/1000152/|title=TOYOTA PRIUS G|website=www.goo-net-exchange.com}}</ref> The power output was increased again to {{convert|77|PS|kW hp|0|abbr=on}} at 5000&nbsp;rpm for the second generation Prius.<ref>{{cite web|url=https://www.goo-net-exchange.com/catalog/TOYOTA__PRIUS/10012144/|title=TOYOTA PRIUS G TOURING SELECTION|website=www.goo-net-exchange.com}}</ref>
Peak [[thermal efficiency]] is about 37%.<ref>{{cite web |url=http://www.greencarcongress.com/2011/04/nakata-20110411.html |title=Toyota targeting thermal efficiency of more than 45% for next-generation gasoline engines for hybrids |work=Green Car Congress |accessdate=3 May 2015}}</ref> 

In 2011, upon the arrival of the [[Toyota Prius c|Prius c/Aqua]] and the [[Toyota Vitz (XP130)|XP130 Yaris Hybrid]], an improved version was introduced. Without any belt-driven accessories (equipped with an electric [[water pump]]), implementation of [[exhaust gas recirculation]] (EGR) system and a physical [[compression ratio]] of 13.4:1.<ref>{{Cite press release |url=https://global.toyota/en/newsroom/toyota/22689040.html|title=TMC Launches 'Aqua' in Japan|publisher=Toyota|date=26 December 2011}}</ref> The new version delivers an output of {{convert|74|PS|kW hp hp|0|abbr=on}} at 4800&nbsp;rpm with {{convert|111|Nm|lbft kg.m|0|abbr=on}} of torque at 3600–4400&nbsp;rpm.<ref>{{cite web|url=https://www.goo-net-exchange.com/catalog/TOYOTA__AQUA/10073780/|title=TOYOTA AQUA G|website=www.goo-net-exchange.com}}</ref>

The 1NZ-FXE Hybrid Synergy Drive in the Toyota Prius has won several [[International Engine of the Year]] awards:

*Best Eco-friendly 2000
*Best Eco-friendly 2001
*Best Fuel Economy 2005
*Best 1.4-litre to 1.8-litre 2005<ref name=eoty>{{cite web |url=http://www.ukipme.com/engineoftheyear/archive.php |title=Archive {{!}} International Engine of the Year |work=Engine Technology International magazine |accessdate=10 February 2015}}</ref>
*Best Fuel Economy 2006
*Best 1.4-litre to 1.8-litre 2006<ref name=eoty/>

This engine was discontinued for international markets in 2020 and was replaced by the [[Toyota Dynamic Force engine#M15|M15A-FXE]] engine. However, as of January 2025, the 1NZ-FXE engine is still available in Japan.<ref name=Probox>{{cite web|url=https://toyota.jp/probox/grade/?padid=from_probox_top_bottommenu_grade|title=Toyota Probox price and grade|language=Japanese|access-date=28 January 2025|website=toyota.jp}}</ref>

Transmissions ([[Continuous variable transmission#Hybrid electic|eCVT]]): P110 (1997–2000), P111 (2000–2003), P112 (2003–2009) and P510 (2011–present)

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*[[Toyota Corolla (E160)|Toyota Corolla Axio/Fielder Hybrid NKE165]] (2013–present)
*[[Toyota Prius]]
**[[Toyota Prius (XW10)|NHW10/NHW11]] (1997–2003)
**[[Toyota Prius (XW20)|NHW20]] (2003–2009)
*[[Toyota Prius C |Toyota Prius c/Aqua NHP10]] (2011–2021)
*[[Toyota Probox]] Hybrid NHP160V (2018–present, also sold as Succeed Hybrid until 2020 and as [[Mazda Familia Van]] Hybrid (NHP160M) from 2018)
*[[Toyota Sienta (XP170)|Toyota Sienta Hybrid NHP170G]] (2015–2022)
*[[Toyota Vitz (XP130)|Toyota Yaris Hybrid NHP130]] (2012–2020, Europe)/[[Toyota Vitz|Vitz Hybrid NHP130]] (2017–2019, Japan)
*[[Mitsuoka]] Ryugi Hybrid (2014–present, based on [[Toyota Corolla (E160)|Corolla Axio/Fielder Hybrid NKE165]])
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