Tata Revotron engine
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| Revotron Engine | |
|---|---|
| Overview | |
| Manufacturer | Tata Motors |
| Production | 2014-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 |
|
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.
History
[edit]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 camshaft 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
[edit]Applications of the Revotron engine include:
- Tata Bolt (2014-2019)
- Tata Zest (2014-2019)
- Tata Tiago (2016-present)
- Tata Tigor (2016-present)
- Tata Altroz (2019-present, non-turbo / 2021-present, turbo)
- Tata Nexon (2017-2020, 110 PS turbo / 2020-present, 120PS turbo)
- Tata Punch (2021-present)
See also
[edit]References
[edit]- ^ "Revotron and Revotorq Engines". Tata Motors Limited. 7 September 2017. Retrieved 31 March 2022.[dead link]
- ^ Barretto, Sergius (31 January 2021). "Tata Altroz iTurbo review, test drive". Autocar India. Retrieved 23 April 2023.
- ^ Mondal, Saptarshi (19 January 2022). "Tata Tiago CNG, Tigor CNG launched; prices start from Rs 6.09 lakh". Autocar India. Retrieved 24 April 2023.
- ^ [citation needed]
- ^ "Tata Motors Altroz Racer Features". autoexpo.tatamotors.com. Retrieved 14 April 2023.[dead link]
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