Tritec engine#1.6
{{Infobox automobile engine
| name = Tritec engine
| manufacturer = Tritec Motors
| production = 1999–2007
| image = Mini Cooper S Convertible - Flickr - The Car Spy (17).jpg
| caption = MINI Cooper S convertible engine bay
| successor = Fiat E.torQ engine
Prince engine
| configuration = Straight-4
| valvetrain = SOHC 4 valves x cyl.
| displacement = {{cvt|1397|cc|L|1|order=flip}}
{{cvt|1598|cc|L|1|order=flip}}
| bore = {{cvt|77|mm|in|2}}
| stroke = {{cvt|75|mm|in|2}}
{{cvt|85.8|mm|in|2}}
| fueltype = Gasoline
| fuelsystem = MPSEFI
| coolingsystem = Water-cooled
| supercharger = Eaton M45 Roots type with intercooler (in some versions)
| block = Cast iron
| head = Aluminum alloy
| compression = 8.3:1, 10.5:1
| power = {{cvt|55|-|160|kW|PS hp|0}}
| torque = {{cvt|122|-|250|Nm|lbft|0}}
}}
The Tritec engine (also known as Pentagon) is a four-cylinder petrol engine that was manufactured between 1999 and 2007 by Tritec Motors in Brazil and was used in various cars including Chrysler and Mini models.
Tritec Motors Ltda
In 1997, Chrysler Corporation and Rover Group (then a subsidiary of BMW) formed a joint venture called Tritec Motors to design a new small straight-4 engine. The new company built a factory in Campo Largo of Curitiba, Brazil specifically to manufacture the new engine. The Tritec name stands for the union of the three countries involved: Germany, the United Kingdom, and Brazil.
When BMW broke up the remains of Rover Group in 2000, BMW kept the stake in Tritec Motors because the engine was in use in the Mini range which BMW had retained. In 2007 BMW sold its 50% stake to DaimlerChrysler and cancelled its contract for the Tritec engine.{{cite web|title=BMW Out of Tritec Engine JV|url=http://wardsauto.com/news-amp-analysis/bmw-out-tritec-engine-jv|work=Wards Auto|accessdate=1 February 2013|date=12 July 2007}} BMW entered into a new joint venture with PSA Peugeot Citroen to develop the Prince engine which is used in the second generation Mini cars.{{cite web|title=BMW signs-off Tritec engine project to Chrysler|url=http://www.motorauthority.com/news/1027256_bmw-signs-off-tritec-engine-project-to-chrysler|work=Motor Authority|accessdate=1 February 2013|date=7 June 2007}}
The factory had a capacity of 400,000 engines a year,{{cite web|title=BMW, Chrysler Break Ground for Joint Tritec Engine Plant|url=http://www.theautochannel.com/news/press/date/19980414/press011414.html|work=Auto Channel|accessdate=1 February 2013|date=14 April 1998}} and in 2006 production was around 200,000 engines. Production ceased in June 2007 following the ending of the joint venture.{{cite web|title=Tritec Motors ceased production|url=http://www.just-auto.com/news/tritec-ceases-production_id91738.aspx|work=Just Auto|accessdate=1 February 2013|date=26 June 2007}}
In March 2008 Fiat Powertrain Technologies bought the plant and licenses to produce Tritec engines at a cost of €83 million,{{Cite web|url=http://www.italiaspeed.com/2008/cars/industry/03/tritec_brazil/1303.html|title=13.03.2008 Fiat Powertrain Technologies buys CHRYSLER'S BRAZILIAN ENGINE UNIT|accessdate=2008-03-13|work=italiaspeed.com}} and in 2010 subsequently launched its own E.torQ engine.
Engine details
It is a modern engine with an SOHC 16-valve head, electronic throttle control, and meets Euro IV emissions requirements. There are three versions of the engine, {{cvt|1397|cc|L|1|order=flip}}, {{cvt|1598|cc|L|1|order=flip}} and supercharged {{cvt|1598|cc|L|1|order=flip}}.
BMW complained about the performance of the engine. According to Ward's Auto, Erich Sonntag of BMW described the Tritec engine as old fashioned and not very effective on function, performance and fuel efficiency. This was no news to the Rover Group engineers on the MINI project, who had wanted to use Rover's K-Series engine, an older design which had similar power output and fuel efficiency, but was built next door to the proposed MINI line at Longbridge, and already had amortised its R&D.{{cite web |url=http://auto.moldova.org/news/bmw-sold-tritec-engine-jointventure-56160-eng.html |title=BMW sold Tritec engine joint venture |publisher=Moldova |accessdate=November 8, 2009 |url-status=dead |archiveurl=https://web.archive.org/web/20100326190323/http://auto.moldova.org/news/bmw-sold-tritec-engine-jointventure-56160-eng.html |archivedate=March 26, 2010 }}
=1.4 (T14a)=
The {{cvt|1397|cc|L|1|order=flip}} version uses a bore and stroke of {{cvt|77x75|mm|in|2}}. Like all Tritecs, it is an SOHC 16-valve cast iron engine with an aluminium cylinder head and multipoint sequential electronic fuel injection. Output is rated at {{cvt|55|kW|PS hp|0}} and {{cvt|122|Nm|lbft|0}}.
Applications:
- Mini One (Portugal, Greece) (until 2008)
=1.6 (w10b16a)=
The {{cvt|1598|cc|L|1|order=flip}} version uses the same {{cvt|77|mm|in|2}} bore with a longer {{cvt|85.8|mm|in|2}} stroke. Output is rated at {{cvt|66|kW|PS hp|0}} and {{cvt|140|Nm|lbft|0}} in the Mini One, and {{cvt|85|kW|PS hp|0}} and {{cvt|149|Nm|lbft|0}} in the Mini Cooper and Chrysler PT Cruiser.
Applications:
- Chery A11 (Windcloud)
- Chery A15 (Flagcloud)
- Chrysler Neon (in non-US markets)
- Chrysler PT Cruiser (in non-US markets)
- Lifan 620
- Lifan 520
- Mini Hatch and Convertible (until 2008).
=1.6 SC (w11b16a)=
The 1.6 SC uses an Eaton M45 Roots type supercharger with intercooler. The compression ratio is reduced from 10.5:1 to 8.3:1. Output was initially rated at {{cvt|120|kW|PS hp}} and {{cvt|210|Nm|lbft}} of torque and increased to {{cvt|125|kW|PS hp}} and {{cvt|220|Nm|lbft}}. The {{cvt|1598|cc|L|1|order=flip}} SC won the "1.4 L to 1.8 L" category at the International Engine of the Year awards for 2003. It also won Ward's 10 Best Engines award for 2003.
The 2006 Mini John Cooper Works GP Kit was upgraded to {{cvt|160|kW|PS bhp|0}} at 7,100 rpm and {{cvt|250|Nm|lbft|0}} of torque at 4,600 rpm.{{Cite web |url=http://www.pistonheads.com/features/ph-buying-guides/mini-cooper-s-r53--ph-buying-guide/29900 |title=Mini Cooper S (R53): PH Buying Guide |first=Alisdair |last=Suttie |website=PistonHeads |date=1 May 2014 |access-date=5 October 2016}}
Applications:
- Mini Hatch Cooper S
- 2006 Dodge Hornet concept car