when less is more
TRANSCRIPT
KILOWATTS
75@5600
77@5600
TORQUE
148@3800
175@ 1550-4100
COMBINED FUEL CONSUMPTION
7.1ℓ/km
4.9ℓ/km
Engine size vs. output
For centuries conventional wisdom has led us to believe ‘more is more’. While that may ring true for many things in
life, when it comes to Twitter updates, plastic surgery, carbon emissions or the size of your car’s engine, less really is more. Turbo Stratified Injection (TSI) engines embody this principle entirely and have proved to be a formidable opposition to larger capacity engines.
Lighter, smaller and leaner, TSI engines still deliver all the power and performance that consumers demand and more. Its secret is reduced friction in a TSI engine, which in turn leads to a reduction in power loss. Being lighter, the engine also has less weight to shift in the car.
SMALLER ENGINE, MORE POWERThe worldwide trend in the motor industry is making more with less. One innovative way of doing this is producing engines that provide the same performance using fewer kilowatts. With Formula One Racing setting the example at the highest class of competition, engine sizes are getting smaller. The 2013 season is the final year the series will use the current 2.4 litre V8 engine. From 2014 a 1.6ℓ turbocharged V6 engine formula will replace it.
Dr Rudolf Krebs, Head of Volkswagen’s engine development department, points out that being small has its evolutionary advantages.
Smaller, lighter and way better, Volkswagen’s TSI engines perform better than larger capacity engines with a frugal
appetite for fuel and no compromise on powerBy Vanessa Papas
“There’s a misconception that smaller engines equal less power. While the 1.4ℓ TSI engine is very small in capacity relative to its output, don’t be fooled by its size. We all know how ants can lift objects many, many times their own body weight. In much the same way, with a capacity of just 1.4 litres, the TSI engine manages to do the work of a 2.5ℓ power plant.
“It accomplishes this feat by being very good at ‘efficiency’. ‘Efficiency’ basically refers to how much air you can actually get into an engine compared to that engine’s static capacity. More air means more power.”
SUPER CHARGED, TURBO CHARGEDVolkswagen’s TSI engine range includes smaller capacity twin-charged engines, as well as larger capacity turbocharged engines. All TSI engines have a turbocharger but engines with a higher output also have a supercharger.
“The easiest way to get more air into an engine is to pressurise it with a special sort of pump and there are two types you can use: supercharger or turbocharger,” Dr Krebs points out.
Turbochargers run off an engine’s exhaust gases, which means they don’t sap engine power but cause a delay before the exhaust gas pressure gets high enough to work the turbo, called turbo lag. Superchargers, on the other hand, run directly on engine power so they work immediately but constantly soak up engine power, making them less efficient.
“The best solution is combining the advantages of both supercharger and turbocharger, which effectively removes their disadvantages. That’s exactly what some TSI engines do. They use a supercharger for low engine revs and a turbocharger when it gets to higher revs.”
PACKS A PUNCH The TSI engine is a bit like a short stick of dynamite. It may be inconspicuous, but it has enough ‘bang’ to burn up the road.
When less is more
UNDER THE BONNET
Volkswagen 3938 Volkswagen
TDI ENGINES ENSURE:• Greater driving pleasure, excellent acceleration
values and above-average driving performance
• Direct injection with common rail systems and piezo injectors for the most efficient injection pressures
• Multiple injection for optimised mixture formation and optimal combustion processes
• High overall efficiency through flexible injection times
• Exhaust gas turbocharger with variable turbine geometry for high charge pressures through the entire rpm range
• Effective offset of turbo lag
• Superb engine output
• Generous torque curve
• Refined power development
• Comfort through smooth running
• Lowest consumption rates
• Considerable reduction of emissions
• Effective diesel particulate filters
• High efficiency with greater power
• Long intervals between servicing or maintenance
• Innovative and future-proof technologies with more
AWARD-WINNING EXCELLENCESince TSI’s global launch, the revolutionary new Volkswagen 118kW 1.4 TSI
engine has earned its right as a champion. TSI has been awarded: • Winner of the Auto Motor und Sport ‘Paul Pietsch Prize’
• ‘Innovation Award’ from Popular Science magazine • ‘Best New Engine’ in the International Engine of the Year Awards 2006
• Winner of International Engine of the Year 2009• Winner of Best Green Engine 2009
• Winner of Best Engine in the 1.0 to 1.4 litre category 2009 - 2012 Using twin-charging technology to optimise power and performance, and at the same time reducing fuel consumption and emissions, it’s no surprise that a panel of
65 automotive journalists from around the world all agreed Volkswagen’s TSI engine is not only the best engine in the world, but also the best engine for the world.
Volkswagen has moved from higher capacity engines of 1.6 litres into lower capacity engines of 1.2 litres. Despite a smaller engine, it still boasts a similar power output without adding a supercharger engine. It increases your car’s power and provides this power at lower revs.
Perhaps one of the best things about the TSI engine, is its dislike of petrol stations. While you get a better performing engine, fuel consumption is significantly lower, reducing CO2 emissions and helping pave the way to a greener future.
1.4ℓ VERSUS 1.6ℓ TSIWhen it comes to the 1.4ℓ 90kW TSI engine with twin-charging versus the 1.2ℓ 77kW TSI engine with turbocharger both have their advantages. The special concept behind the 1.4ℓ TSI is the combination of direct petrol injection, dual-charging and downsizing.
With twin-charging, the engine is charged by a mechanical compressor and/or a turbocharger. Downsizing is replacing a large-capacity engine with a power plant with smaller displacement and/or fewer cylinders. This reduces the internal friction and the fuel consumption without the power or torque being reduced.
The 1.2ℓ 77kW TSI, on the other hand, replaces the 1.6ℓ 75kW engine with intake manifold injection. Compared with the latter this engine achieves significantly better performance with significantly reduced fuel consumption and therefore lower CO2 emissions.
TO NEW HEIGHTSThunderstorms, deserts and wilderness, the Highveld boasts some of the most spectacular scenery and terrain but also some of the toughest. Volkswagen has subjected the TSI engine to over 50 000 hours of torturous testing to ensure maximum reliability. It also handles high altitude conditions with ease.
A naturally aspirated engine (no turbocharger) loses between 10% and 17% of its claimed power in high altitude conditions; this is especially applicable to vehicles sold on the Highveld where altitudes range from 1 500 metres to 2 100 metres above sea level. The air is thinner at high altitudes therefore the airflow into the engine is also less dense than at sea level, and less effective at burning fuel. This means less power and torque.
GOLF 71.2 BMT 6spd Manual 75kW1.4 TSI Trendline BMT 6spd Manual 90kW1.4 TSI Comfortline BMT 6spd Manual 90kW1.4 TSI Comfortline BMT 7spd DSG 90kW2.0 TDI Comfortline 5spd Manual 81kW1.4 TSI Highline BMT 6spd Manual 103kW2.0 TDI Highline BMT 6spd DSG 110kW2.0 TSI Sport & Style DSG 155kW
GOLF VI CABRIOLET1.4 TSI Comfortline 90kW1.4 TSI Comfortline DSG 90kW1.4 TSI Highline 118kW1.4 TSI Highline DSG 118kW2.0 TSI GTI DSG 155kW1.4 TSI Highline man 118kW2.0 TSI Sportline man 155kW
BEETLE1.2 TSI Design Manual 77kW1.4 TSI Sport Manual 118kW1.4 TSI Sport DSG 118kW
TIGUAN1.4 TSI Trend & Fun 4x2 BMT 90kW2.0 TDI Trend & Fun 4x2 BMT 81kW1.4 TSI Trend & Fun 4x2 BMT 118kW1.4 TSI Trend & Fun 4x2 BMT DSG 110kW1.4 TSI Trend & Fun 4x4 118kW2.0 TDI Track & Field DSG 103kW2.0 TDI Sport & Style DSG 103kW
SCIROCCO1.4 TSI Highline man 118kW2.0 TSI Sportline man 155kW2.0 TSI Sportline DSG 155kW
TOUAREG3.6 V6 FSI Tipt 206kW3.0 V6 TDI BMT Tipt 180kW3.0 V6 TDI BMT Tipt with Terrain Tech 180kW4.2 V8 TDI Tipt 250kW
JETTA1.2 TSI Trendline 77kW1.4 TSI Trendline 90kW1.4 TSI Comfortline 90kW1.4 TSI Comfortline DSG 90kW1.6 TDI Comfortline 77kW1.6 TDI Comfortline DSG 77kW1.4 TSI Highline 118kW2.0 TDI Highline 103kW
CC2.0 TDI BMT DSG 125kW2.0 TDI BMT DSG 130kW2.0 TSI DSG 155kW3.6 FSI V6 DSG 4Motion 220kW
PASSAT 1.8 TSI Comfortline 118kW1.8 TSI Comfortline DSG 118kW2.0 TDI Comfortline 103kW2.0 TDI Comfortline DSG 103kW
CADDY1.6i Trendline 75kW2.0 TDI Trendline 81kWMaxi 2.0 TDI Trendline 81kWMaxi 2.0 TDI Trendline DSG 103kW
T5Kombi 2.0 TDI SWB 75kWKombi 2.0 TDI SWB 103kWKombi 2.0 TDI LWB 75kWCaravelle 2.0 BiTDI 132kWCaravelle 2.0 BiTDI DSG 132kWCaravelle 2.0 BiTDI DSG 4MOTION 132kWKombi 2.0 TDI LWB 103kWKombi 2.0 TDI LWB DSG 103kW
T5 CALIFORNIA BEACH2.0 BiTDI 4MTO 132kW2.0 BiTDI 4MTO DSG 132kW
NEW POLO HATCHPolo 1.2 TDI BlueMotion 55kWPolo 1.4 TSI GTI DSG 132kW
NEW POLO SEDANPolo 1.4i Trendline 63kWPolo 1.4i Comfortline 63kWPolo 1.6i Trendline 77kWPolo 1.6i Comfortline 77kWPolo 1.6i Comfortline Tipt 77kWPolo 1.6 TDI Comfortline 77kW
NEW CROSS POLOCross Polo 1.6 77kWCross Polo 1.6 TDI 77kW
NEW POLO HATCHPolo 1.4i Trendline 63kWPolo 1.4i Comfortline 63kWPolo 1.6i Trendline 77kWPolo 1.6i Comfortline 77kWPolo 1.6i Comfortline Tipt 77kWPolo 1.6 TDI Comfortline 77kW
POLO VIVO SEDANPolo Vivo 1.4 Base 55kWPolo Vivo 1.4 Blueline 55kWPolo Vivo 1.4 Trendline 63kWPolo Vivo 1.4 Trendline Tipt 63kWPolo Vivo 1.6 Base 77kWPolo Vivo 1.6 Trendline 77kW
POLO VIVO HATCHPolo Vivo 1.4 2-dr Base 55kWPolo Vivo 1.4 Base 55kWPolo Vivo 1.4 Zest 55kWPolo Vivo 1.4 BlueLine 55kWPolo Vivo 1.4 Trendline 63kWPolo Vivo 1.4 Trendline Tipt 63kWPolo Vivo 1.6 Base 77kWPolo Vivo 1.6 Trendline 77kWPolo Vivo 1.6 GT 77kWPolo Vivo 1.6 Maxx 77kW
TOURAN1.2 TSI Trendline manual 77kW2.0 TDI Trendline manual 81kW2.0 TDI Trendline DSG 81kW1.4 TSI Highline manual 103kW
VOLKSWAGEN’S TSI RANGE
BMT – BlueMotion Technologies / DSG – Direct Shift Gearbox / TSI – Turbo Stratified Injection / TDI – Turbo Diesel Injection Volkswagen 4140 Volkswagen