SAIC Kavachi engine
Reciprocating internal combustion engine / From Wikipedia, the free encyclopedia
The Kavachi engine, commonly known as the TCI-Tech, was developed by SAIC Motor, based on a re-engineering of the Rover K-series engine.[1] It is used in Roewe and MG Motor vehicles.
Kavachi engine TCI-Tech | |
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Overview | |
Manufacturer | SAIC Motor |
Production | 2008-2015 |
Layout | |
Configuration | Straight-four |
Displacement | 1.8 L; 109.6 cu in (1,796 cc) |
Cylinder bore | 80 mm (3.15 in) |
Piston stroke | 89.3 mm (3.52 in) |
Cylinder block material | Aluminum |
Cylinder head material | Aluminum |
Valvetrain | DOHC 4 valves x cyl. with VVC |
Combustion | |
Fuel system | Multi-port fuel injection |
Fuel type | Gasoline |
Oil system | Wet sump |
Cooling system | Water-cooled |
Output | |
Power output | 131hp @ 6,000 rpm (naturally aspirated) 158hp @ 5,500 rpm (turbocharged) |
Torque output | 168nm @ 4,500 rpm (naturally aspirated) 215nm @ 2,500-4,500 rpm (turbocharged) |
Chronology | |
Predecessor | Rover K-series engine |
The 1796cc Kavachi engine is produced in two versions, a naturally aspirated producing 98 kW (131 bhp; 133 PS) at 6,000 rpm and 168 N⋅m (124 lb⋅ft) @ 4,500 rpm, and a turbocharged version producing 118 kW (158 bhp) at 5,500 rpm and 215 N⋅m (159 lb⋅ft) of torque from 2,500 to 4,500 rpm. It is Drive-by-wire.[citation needed]
UK engineering firm Ricardo plc were tasked with remedying the well known faults of the K series by SAIC Motor for its introduction into the Chinese marketplace. With a redesigned head, improved waterways, stiffened block as well as changing the manufacturing process and quality of material, the Kavachi is seen as the pinnacle of K-series development. As of 2015, with more than half a decade in the market, there have been no reported issues of head gasket failure on cars using the Kavachi engine.[citation needed]
A point to note, the Kavachi engine is sometimes referred to and often confused with the N Series engine. The N Series is also a development of the original K Series but was in fact produced by Nanjing Automobile (NAC) a rival company at the time to SAIC. (later merged)[citation needed]
N Series was fitted into the relaunched MG TF in the UK and in the MG3 SW and MG7 in China.[citation needed]