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| “Combining
direct injection with a compressor;
welcome to the new age of small engines”
Leonid Golovanov, Autoreview |
|
Continuing where it left off, Volkswagen
has triumphed in the best 1-litre to 1.4-litre engine for the
second consecutive year by some margin. Indeed the
company’s 1.4-litre TSI (Torque Strong Twincharger), finished
over 200 points clear of the second-placed Honda
1.3-litre hybrid.
In addition to being equipped with
direct injection, which enabled VW
engineers to choose a high compression ratio of 10:1, the 1.4-litre
employs both
a turbocharger and a supercharger to
generate its 168bhp and 240Nm of torque at 1,750rpm in the higher-power
version. The high specific output of 119bhp is achieved thanks
to the use
of the upstream supercharger, which increases the boost pressure
build-up
of the exhaust turbocharger and fills
the hole in the torque at low revs. Fuel consumption is reduced
by minimising supercharger use at high engine speeds; a bypass
valve is usually deployed at 2,400rpm or under hard acceleration
at up to 3,500rpm.
The judges have been quick to praise Volkswagen for the innovation
of the engine; Farah AlKhalisi of 4car.co.uk said: “Volkswagen’s
TSI is an effective solution to downsizing without losing out
on either performance or responsiveness.” Her thoughts
were echoed by German judge Thomas Imhof, who noted: “TSI
is an ingenious way to combine high fuel
efficiency with great power. It proves
how strongly a small heart can beat.”
The initial 168bhp incarnation of
the TSI has since been joined by a lower-powered 138bhp variant
and the engine has been additionally deployed to the Jetta saloon
and Touran MPV. |
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points |
| 1. Volkswagen 1.4-litre FSI (TSI) (VW Golf,
Touran, Jetta) |
404 |
| |
|
| 2. Honda Hybrid 1.3-litre IMA (Civic) |
178 |
| |
|
| 3. Fiat-GM Diesel 1.3-litre (Panda, Grande
Punto, IDEA, Doblo, Lancia Ypsilon, Musa, Opel/Vauxhall Agila,
Corsa, Astra, Meriva, Tigra, Combo, Suzuki New Ignis) |
160 |
| |
|
| 4. Renault 1.2-litre Turbo (Clio) |
123 |
| |
|
| 5. Peugeot-Citroën/Ford Diesel 1.4-litre
(Citroën C2, C3,
Ford Fiesta, Fusion, Mazda 2/Demio, Peugeot 1007,
207, 307) |
66 |
| |
|
| 6. BMW-PSA 1.4-litre (MINI One) |
56 |
| |
|
|
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