Toyota NR engine
Introduction The '''Toyota NR engine family''' is a series of small inline-four piston engines designed and manufactured by Toyota, with capacities between .
Common features of this series The NR series uses aluminium engine blocks and cylinder head. The valve mechanism is equipped with 4-Valves per cylinder, DOHC, and implemented Toyota's Dual VVT-i and VVT-iW. It also uses multi-point or direct fuel injection. The 1NR, 2NR, 3NR, 4NR, 5NR, 6NR, and 7NR engines have Dual VVT-i standard and the 8NR engine has VVT-iW, enabling it to operate in the Otto cycle as well as a modified-Atkinson cycle to improve thermal efficiency.
1NR-FE The '''1NR-FE''' is a compact 1.3-litre inline-four piston engine featuring Stop & Start technology and Dual VVT-i. It was introduced into the European market in late 2008 with the Yaris XP9F. Improved engine performance combined with low emissions and fuel consumption was the principal aim during its development.Advanced engineering has been applied throughout the 1NR-FE engine. Toyota engineers streamlined the engine's intake channel, used computer simulation to optimize airflow, smoothened all surfaces for less turbulence and rounded off all angles and sharp edges inside the engine. One of the key elements of the 1NR-FE engine is its piston design. Smaller and lighter than on the previous  unit, they are designed with a smaller contact area and use carbon ceramide, an advanced material commonly used in Formula One engineering, to reduce friction. The engine also features cooled exhaust gas recirculation (cold area specification models only) to reduce pumping losses and reduce  emissions.Technical specifications of the engine:* Displacement: * Bore x Stroke: * Max. Output: Euro 4 Version:  at 6000 rpm, Euro 5 Version:  at 6000 rpm, Indonesia Euro 4 Version:  at 6000 rpm, Malaysia version:  at 6000 rpm* Max. Torque: Euro 4 Version:  at 3800 rpm, Euro 5 Version:  at 3800 rpm, Indonesia Euro 4 Version: ,  Malaysia Version:  at 4000 rpm* Compression Ratio: 11.5:1;  Indonesia Euro 4 Version: 10.5:1* Valve Mechanism: 16-valve DOHC, Chain Drive (with Dual VVT-i)* Fuel Injection System: Multi-point fuel injection* Emission Regulation: Euro 4 (Complies with Euro 5 after optimizations introduced in July 2010)* Engine Service Mass (incl. coolant & oil): * Idling speed: 700 rpm* Redline: 6200 rpmApplications:* Subaru Trezia* Toyota Auris* Toyota Corolla* Toyota Corolla Axio (NRE160) (Japan)* Toyota Etios (South America)* Toyota iQ* Toyota Passo* Toyota Probox* Toyota Ractis* Toyota Urban Cruiser* Toyota Verso-S* Toyota Vios (XP150)* Toyota Yaris (XP150)
1NR-VE 1NR-VE engine on a Perodua BezzaThe new '''1NR-VE''' engine was improvised by Daihatsu for the Toyota Avanza and Daihatsu Xenia, and then later used by Perodua for the Perodua Bezza, which is based on the 1.3-litre 1NR-FE. It has ECE fuel consumption figures of  for the manual variant and  for the automatic. The engine produces  and  of torque.The Perodua Bezza Advance variant and all variants of the new third generation Myvi are capable of , courtesy of the new Eco Idle stop-start system and regenerative braking better than the previous generation engines.Applications:* Toyota Avanza/Transmover / Daihatsu Xenia (F653, 2015–2023)* Toyota Avanza / Daihatsu Xenia (W100, 2021–present)* Perodua Bezza (B301, 2016–present)* Perodua Myvi / Daihatsu Sirion (M800, 2017–present)* Toyota Yaris/Vios (NGC101, 2022–present)
1NR-FBE Fitted to the Toyota Etios and Yaris hatchback made in Brazil, available only as a flexfuel, 1.3 litre, with VVT-i. Replaced by a flexfuel version of the 1NR-FKE in 2016.
1NR-FKE The '''1NR-FKE''' is a variant of the '''1NR-FE''' introduced in the second quarter of 2014.Toyota claims it will have a maximum thermal efficiency of 38 per cent. This 1.3-litre petrol engine is employing the Atkinson cycle like hybrid-dedicated Toyota engines. The maximum torque is lesser, but, this time, the maximum output is not reduced. Valves are driven with Variable Valve Timing-intelligent Electric VVT-iE. The intake port has a new shape that generates a strong vertical tumble flow.Combustion is improved, and loss reduced. Toyota says that with idling stop and other functions, it will lead to fuel efficiency gains of approximately 15 per cent.Main differences between '''1NR-FE''' :* Max. output:  at 6000 rpm* Max. torque:  at 4400 rpm* Max. thermal efficiency : 38%* Expansion ratio: 13.5:1* Valve mechanism: VVT-iE'''Applications:'''*Toyota Etios (NGK11, Brazil only)*Toyota Yaris (NSP150, Brazil only)* Toyota Vitz after April 2014* Subaru Trezia after May 2014
2NR-FE 2NR-FE engine on a Toyota SientaA  variant of the NR series engine, first introduced in the fourth quarter of 2010 for the Toyota Etios. It is the first new engine Toyota developed for over 8 years without VVT-i made to lower costs for the Toyota Etios. A new innovation was introduced to this engine with the integration of the exhaust manifold into the cylinder head to reduce emissions. A Dual VVT-i equipped version was later introduced and first used in Toyota Avanza and in many 1.5L models in the Asian market from the 2017 model year.Technical specifications of the engine:* Displacement: * Bore x Stroke: * Max. output: **  at 5600 rpm (w/o Dual VVT-i)**  at 6000 rpm (with Dual VVT-i)* Max. torque:**  at 3000 rpm (w/o Dual VVT-i)**  at 4200 rpm (with Dual VVT-i)* Compression ratio: 11.5:1; Indonesian Euro 4 version: 10.5:1* Idling speed: 700 rpm* Redline: 6200 rpm'''Applications:'''* Toyota Etios (NGK12/15, 2010–present)* Toyota Sienta (NSP170, 2016–present)* Toyota Vios/Yaris/Limo (NSP151, 2016–present)
2NR-VE 2NR-VE engine on a Toyota Rush (positioned longitudinally)Based on the 1.5-litre 2NR-FE engine, The '''2NR-VE''' was adapted by Daihatsu for its products and it's also used by Toyota for their products based on Daihatsu New Global Architecture (DNGA). An idle stop-start system is introduced for the Perodua Myvi and Toyota Rush (since 2021) to enhance fuel efficiency. The commercial variant used in the Daihatsu Gran Max has different output adjustment but still features Dual VVT-i. Max. output:*  at 6000 rpmMax. torque:*  at 4200-4400 rpmCompression Ratio: 11.5:1; Indonesian Euro 4 version: 10.5:1Applications:* Toyota Avanza / Daihatsu Xenia (F654, 2015–2021)* Toyota Avanza / Daihatsu Xenia (W101, 2021–present)* Toyota Veloz (W101/W151, 2021–present)* Perodua Alza (W151, 2022–present)* Daihatsu Terios / Toyota Rush (F800, 2017–present) / Perodua Aruz (F850, 2019–present)* Perodua Myvi / Daihatsu Sirion (M801, 2017–present)* Toyota TownAce / Daihatsu Gran Max / Mazda Bongo (S403/S413, 2020–present)* Toyota Yaris/Vios (NGC102, 2022–present)* Toyota Yaris Cross (NGC200, 2023–present)
2NR-VEX 2NR-VEX engine on a Toyota Yaris CrossBased on the 1.5-litre ''2NR-VE'' engine, the ''2NR-VEX'' unit is an Atkinson cycle engine used with a hybrid system paired with an electric motor and a lithium-ion battery.Maximum output:* Maximum torque:* Applications:* Toyota Yaris Cross Hybrid (NYC200, 2023–present)
2NR-FBE A flex fuel engine for the Etios in Brazil. It can run on gasoline or any mixture of gasoline and ethanol, up to full ethanol (E100).Main differences between '''2NR-FE''':* Max. Power output:  at 5600 rpm*Max. Torque:  at 3100 rpmApplications:*Toyota Etios (Brazil only)*Toyota Yaris (Brazil only)*Toyota Vios (2016–present)
2NR-FKE Implements variable valve timing system VVT-iE and engine operation by Miller / Atkinson cycle.Main differences between '''2NR-FE''' :* Max. Output:  at 6000 rpm* Max. Torque:  at 4400 rpm* Compression ratio: 13.5:1Applications:* Toyota Corolla Axio (April 2015 – present)* Toyota Porte/Spade (XP140) (2015–2020)* Toyota Sienta (Japan, 2015–present)* Toyota Yaris (Europe, 2017–2020)
{{anchor|3NR-FE|3NR-VE}}3NR-FE 3NR-VE engine on a Daihatsu AylaA  variant of the NR series engine. First introduced in the second quarter of 2011 for the Etios Liva. Toyota later implemented Dual VVT-i mechanism and increased the compression ratio to 11.5:1 for Toyota Yaris models (Thailand).Technical specifications of the engine:* Displacement: * Bore x Stroke: * Max. Output:  at 5600 rpm /  at 6000 rpm (with Dual VVT-i)* Max. Torque:  at 3100 rpm /  at 4200 rpm (with Dual VVT-i)* Compression ratio 11.5:1; Indonesia'''Applications:'''* Toyota Etios (NGK10)* Toyota Yaris (XP150) (NSP152, 2013–2019; Thailand)* Toyota Yaris Ativ (XP150) (NSP152, 2017–2019; Thailand)
3NR-VE A Daihatsu variant of the 3NR-FE.Some technologies used in the Daihatsu-made ''3NR-VE'' engine are:* The application of intake valve type roller rocker arm, which reduces the friction produced when the camshaft is running. * The application of Dual VVT-i system, which adjusts timing on both intake and exhaust camshafts. * Improved cylinder head design. * Longer intake valve, which improves lower-end torque. * Compatible with E20 fuel (Dual VVT-iE version)Technical specifications of the engine:* Displacement: * Bore x Stroke: * Max. Output:  at 6000 rpm (with Dual VVT-i);  at 6000 rpm (with Dual VVT-iE)* Max. Torque  at 4200 rpm (with Dual VVT-i);  at 4400 rpm (with Dual VVT-iE)* Compression ratio: 10.3:1 (with Dual VVT-i); 13.5:1 (with Dual VVT-iE)'''Applications:'''* Toyota Calya / Daihatsu Sigra (B401, 2017–present)* Toyota Agya / Daihatsu Ayla (B101, 2017–2023)* Toyota Yaris Ativ (NGC100, 2022–present, with Dual VVT-iE)
3NR-FKE Implements variable valve timing system VVT-iE and engine operation by Miller / Atkinson cycle.Main differences between '''3NR-FE''':* Max. Output:  at 6000 rpm* Max. Torque:  at 4400 rpm* Expansion ratio: 13.5:1*  output: 99 g/km* Fuel consumption: Applications:* Toyota Yaris (XP150) (Thailand, 2019–present)* Toyota Yaris Ativ (XP150) (Thailand, 2019–2022)
4NR-FE A  variant of the NR series engine. First introduced for the third generation Toyota Vios.Technical specifications of the engine:* Displacement: * Max. Output:  at 6000 rpm* Max. Torque:  at 4200 rpmApplications:* Toyota Vios (NCP150) (China only)
5NR-FE A  variant of the NR series engine. First introduced for the third generation Toyota Vios.Technical specifications of the engine:* Displacement: * Max. Output:  at 6000 rpm* Max. Torque:  at 4200 rpmApplications:* Toyota Vios (NCP150) (China only)
6NR-FE A  variant of the NR series engine. First introduced for the third generation Toyota Yaris.Technical specifications of the engine:* Displacement: * Max. Output:  at 6000 rpm* Max. Torque:  at 4200 rpmApplications:* Toyota Yaris (XP150) (China only)
7NR-FE A  variant of the NR series engine. First introduced for the third generation Toyota Yaris.Technical specifications of the engine:* Displacement: * Max. Output:  at 6000 rpm* Max. Torque:  at 4200 rpmApplications:* Toyota Yaris (XP150) (China only)
8NR-FTS 8NR-FTSA  turbocharged variant of the NR series engine. First introduced in the Toyota Auris in 2015.It uses direct injection.Technical specifications:* Displacement: * Bore x Stroke: * Max. Output:  at 5200-5600 rpm* Max. Torque:  at 1500-4000 rpm* Max. thermal efficiency: > 36%* Compression ratio: 10.0:1* Valve Mechanism: VVT-iWApplications:* Toyota Auris (E180)* Toyota C-HR*Toyota Corolla (E210)
9NR-FTS A version of ''8NR-FTS'' built for Chinese-market Corolla/Levin.Technical specifications:* Displacement: * Bore x Stroke: * Max. Output:  at 5200 rpm* Max. Torque:  at 1500 rpm* Max. thermal efficiency: > 36%* Compression ratio: 10.0:1* Valve Mechanism: VVT-iWApplications:* Toyota Corolla/Levin (E180, China)* Toyota Corolla/Levin (E210, China)
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