• Mar 9th 2010 at 7:55AM
  • 13
German testing and certification company TÜV NORD Group has recognized Volkswagen for its development of the TSI engine family. The TSI engines were one of the first widespread applications of engine downsizing through direct injection and turbocharging.
The award is based on a total lifecycle analysis of the engines in comparison to the larger engines that they replace. Compared to the older, larger engines, the TSI engines use less fuel while producing similar levels of power and significantly more torque.

The TSI engines take advantage of the charge cooling effect of direct injection to use higher compression ratios and more boost. The extra boost and compression helps the engines produce more torque across the rpm range so they are more drivable. The 1.2-liter and 1.4-liter TSI engines are available in a variety of power levels and are used across the model range in cars like the Polo, Golf, Touran and others. Ford is now using a similar approach with its new Ecoboost engines.

[Source: Volkswagen]


Environmental commendation for Volkswagen's TSI engines

Lower consumption and emissions combine with higher driving dynamics

Wolfsburg, 08 March 2010 - Volkswagen's TSI engines have been awarded the environmental commendation certified by TÜV Nord, following in the footsteps of the dual-clutch transmission DSG. The Life Cycle Assessment on which the commendation is based confirms that the TSI engines have significantly improved environmental characteristics compared with the predecessor models throughout their life cycle thanks to their smaller engine size and lower fuel consumption – while at the same time evidencing higher driving dynamics.

After a plethora of awards – including three prestigious "Engine of the Year Awards" last year – TSI technology has now also received the environmental commendation certified by TÜV Nord. After the DSG dual-clutch transmission, this, the second of the three basic technologies in the BlueMotion Technologies brand, has confirmed its outstanding Life Cycle Assessment. BlueMotion Technologies is the Volkswagen umbrella brand for all environmentally-friendly, energy-efficient products and technologies. Thanks to a reduction in engine capacity, sometimes quite substantial, the TSI engines significantly lower fuel consumption and CO2 emissions.

For the environmental commendation, a 1.4 TSI engine with 90 kW was compared with a 1.6 FSI engine with 85 kW. A second test compared a 1.2 TSI with 77 kW and a 1.6 MPI engine with 75 kW. The environmental commendations, which are based on Life Cycle Assessments pursuant to ISO 14040/44, investigate the environmental characteristics of vehicles or technologies throughout their entire life cycle, i.e. from manufacture through use to recycling. The environmental commendation is only issued if the overall performance of the new development is better than that of the respective predecessor.

A 16-page brochure about the environmental commendation for the TSI engines is available from all Volkswagen dealers in Germany from March 8th, 2010. Complementary copies can be ordered by calling 0800-8977277. The environmental commendation can also be downloaded from the Internet at www.environmental-commendation.de. A background report presenting the methods and data is also available from the Internet.

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    • 1 Second Ago
      • 8 Months Ago
      what about the Polo TDI bluemotion that gets 30km/L
      even though it's a combustion engine it deserves mention
      • 8 Months Ago
      I wish this motor replaced the cruddy 5 cylinder they give us in in base model beetles/golf/etc.
        • 8 Months Ago
        I am not sure why you think the 5 cylinder is so bad. Its performance is not really out of line with any other 2.5 liter normally aspirated engine like the base Subaru engine. And if 5 cylinders are good enough for Volvo...

        I used to wonder why the TSI was not available here too. Lately I suspect that the economy and performance of the TDI would not look quite so good if it were available. Plus, all that TSI goodness does not come cheap. They would have to raise the price of the base model and one can see that VW has already cut back on their higher performance models like the V6 because people are not willing to pay the price.
        • 8 Months Ago
        Well, the fuel economy is not great with those 5's, and 5 cylinder motors are weird because secondary vibrations make them sound horrible at higher RPMS. It's a very unbalanced motor.

        Yeah, i think cost is the real issue. A bigger 5 cyl. may be notably cheaper than a small turbo 1.4 or dual VVT 4 cylinder. It's kinda like how GM used to just throw more displacement in cars instead of letting go of pushrods and other ancient tech.

        If GM and Ford can stick fancy powertrains in their cars & sell 'em fairly cheap, VW can do it too. VW is a huge company like GM, after all. I dunno - would you pay an extra $500-$1000 to get 5-10mpg more?
        • 8 Months Ago
        The Subaru 2.5 I4 is junk. Fuji heavy industry knows it.

        Compare against Nissan's somewhat old VQ25hr V6, 222hp 194ft-lbs
        VW's engine is barely over 3/4s of the maximum power
        168/222=75.7%. and torque is only 177ft-lbs

        Volvo's 2.4 I5 received variable intake valve timing, for the 2004.5 S40 I think, if not for the 2004 S60. 168hp 170ft-lbs

        When VW came out with their engine, 148hp@5000, 170ft-lbs@3750, I had to check to see if it had 4 valve heads (thinking that is was the 2.0 [2 valve head] just scaled up by one more cylinder)

        When VW upped the power by 20hp (2008 MY), did it gain variable exhaust valve timing? I don't think so, the mileage is still pretty bad.
      • 8 Months Ago
      Is that an intercooler in reverse? Like, a liquid cooled intake manifold? Woah...
        • 8 Months Ago
        Instead of plumbing an air/air charger cooler in the front of the vehicle (which adds volume that needs to be filled before the engine gets boost), this is an air/liquid/air cooler.
        Yes it adds an extra stage, and requires something to circulate coolant, but markedly reduces the volume to be filled.
        This is the twincharger, minus the supercharger.
      • 8 Months Ago
      The 1.4 TSI motor is really something special - I belong to a car sharing scheme and the closest car to my home is a 140bhp Golf VI TSI... the first time I drove it, the performance seemed underwhelming, until I realised just how much speed it piled on with so little effort... VW has really packed in the sound insulation and made the car completely devoid of a sense of speed, dangerous in a city with what feels like 1 speed camera per resident... my only question is the longevity of an engine with such a high specific output (even more so with the 1.4 TSI 180bhp)... on the other hand motorcycles have had that sort of output for decades and when well cared for go on pretty much forever...
      • 8 Months Ago
      Very impressive, but I am also very impressed with the TDI. What really impresses me is VW-Audi continually developing and bringing superior technologies to market at prices that most can afford. I am disappointed that they are not marketing these smaller engines in the US. We loved our bugs when they had 25 HP! Why wouldn't real economy cars sell now in this economy and the inevitable escalation of fuel prices coming?
        • 8 Months Ago
        I always considered them a German Ford/GM.

        Yeah, it would be nice if we got the cool, fuel efficient models. VW has been promising to bring the 1.4 here for a while now. You'd think they'd be in a frenzy to do it since the CAFE change hits next year.
        • 8 Months Ago
        Pablo, it also doesn't have thousands of dollars of choking emissions equipment plugged into it or need to move a vehicle that's 1000lb. heavier!

        Let that old tech die!

        Shame that the new beetle is nothing like it's predecessor though.
        • 8 Months Ago
        That old bug 1600 engine has enough power to work in every US city. But sadly the old bug will not do 95mph on the freeway so it is not appropriate for Americans. Someday we will downsize cars, but it seems not to be soon.
      • 8 Months Ago
      Wow, a German testing company splattering praise on a German company. Biased much? Nothing new here.
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