Tata Revotron engine

Last updated

Revotron Engine
Overview
Manufacturer Tata Motors
Production2014-present
Layout
Configuration Inline-3
Displacement 1.2 L (1,199 cc)
Cylinder bore 77 mm (3.0 in)
Piston stroke 85.8 mm (3.38 in)
Compression ratio 10.8:1
Combustion
Fuel type Gasoline, CNG
Output
Power output
  • 86 PS (85 hp; 63 kW), 110 PS (110 hp; 81 kW) (turbo, 2017-2020)
  • 120 PS (120 hp; 88 kW) (turbo, 2020-present)
  • 74 PS (73 hp; 54 kW) (iCNG in Tiago & Tigor)

The Tata Revotron engine [1] is a 1.2-liter 3-cylinder petrol engine. It is produced by Tata Motors and was used in their passenger vehicles beginning in 2014.

Contents

History

The Revotron series began with a 1.2-liter, 4-cylinder turbocharged engine introduced in 2014 for the Bolt and Zest. This engine featured a single overhead cam shaft with two valves per cylinder and multi-point fuel injection. It delivered 88 hp (65 kW) at 5,000 rpm and 100 lb⋅ft (140 N⋅m) of torque between 1,500 and 4,500 rpm. It included multiple driving modes for improved response, a smart engine control unit, an eight-holed fuel injector, a reinforced crankcase, and an updated exhaust system.

In 2015, Tata showcased a 1.2-liter, 3-cylinder naturally-aspirated version, later used in the Tiago and Tigor. It offered a dual overhead camshaft driven by a timing chain, variable valve timing, exhaust gas recirculation, a variable oil pump, and four valves per cylinder with hydraulic adjusters.

A turbocharged 1.2-liter, 3-cylinder variant debuted in 2017 with the Nexon, adding a turbocharger and intercooler. Despite competitors using direct injection, it retained multi-point fuel injection, producing 110 hp (81 kW) and 130 lb⋅ft (170 N⋅m).

A more powerful version, offering 120 hp (88 kW), arrived in 2020 with the BS6-compliant Nexon facelift, still using multi-point fuel injection.

In January 2021, Tata launched a turbocharged Revotron engine for the Altroz iTurbo variant, delivering 110 hp (81 kW) and 100 lb⋅ft (140 N⋅m). [2] The lower output aimed to distinguish it from the Nexon and address fitment issues with the Nexon’s larger 6-speed manual transmission.

In January 2022, Tata introduced CNG variants for the Tiago and Tigor, branded as iCNG, marking the company's first cars with this fuel option. [3] This engine produces 72.5 hp (54.1 kW) and 70 lb⋅ft (95 N⋅m) of torque, paired with a 5-speed manual gearbox, and can start directly in CNG mode, a unique feature. [4] The Punch and Altroz later received iCNG versions.

In January 2023, Tata unveiled the Altroz Racer, a sportier version with the same 120 hp (88 kW) as the Nexon, enabled by a 6-speed manual gearbox. [5] Production was confirmed, potentially replacing the slower-selling iTurbo.[ needs update ]

Applications

Applications of the Revotron engine include:

See also

References

  1. ↑ "Revotron and Revotorq Engines". Tata Motors Limited. 7 September 2017. Archived from the original on 30 November 2021. Retrieved 31 March 2022.
  2. ↑ Barretto, Sergius (31 January 2021). "Tata Altroz iTurbo review, test drive". Autocar India. Retrieved 23 April 2023.
  3. ↑ Mondal, Saptarshi (19 January 2022). "Tata Tiago CNG, Tigor CNG launched; prices start from Rs 6.09 lakh". Autocar India. Retrieved 24 April 2023.
  4. ↑ [ citation needed ]
  5. ↑ "Tata Motors Altroz Racer Features". autoexpo.tatamotors.com. Archived from the original on 26 November 2023. Retrieved 14 April 2023.
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