DETROIT, 1:57 PM, SUN JUL 6 | 4 POSTS IN THE LAST 24 HOURS | tips@jalopnik.com | RSS

Audi Dropping New 1.4-liter TFSI Four-Banger In A3, A3 Sportback

The 2.0 TFSI engine from the knights of Bruce has already taken some serious metal in the "Best of" categories. Now Audi's using that technology to create a smaller version of the award-winning 2.0-liter engine, announcing a new, "ultra-modern" (we're pretty sure that's code for über-Bruce) 1.4-liter four-cylinder Turbo Fuel Stratified Injection (TFSI) engine. It's ready to be dropped right into the engine bay of the Audi A3 and A3 Sportback. With 125 HP at 5,000 RPM and a maximum torque of 148 lb-ft. The first A3's to get the new engine hit the streets in September of 2007. Full press release after the jump. (Hat tip to Turboner!) [via AudiWorld]

Efficiency and Performance: New 1.4 TFSI Engine in the Audi A3

A new, ultra-modern four-cylinder TFSI engine with a displacement of 1.4 litres and turbocharger can now be ordered for the Audi A3 and A3 Sportback. The 1.4 TFSI engine delivers 92 kW (125 bhp) at 5,000 rpm. Its maximum torque of 200 Nm is available across an unusually wide speed range of 1,500 to 4,000 rpm.

Audi's engineers have long been demonstrating the effectiveness of FSI technology in combination with turbocharging both on the world's racetracks and on the road. The prime example of this is the "Engine of the Year" award with which a jury of experts crowned the 2.0 TFSI in 2007 for the third time in succession.

This concept is being consistently used once again for the new 1.4 TFSI in order to combine optimal levels of efficiency and performance. Six-hole injectors guarantee highly homogeneous mixture preparation and extremely efficient combustion. The reduction of pollutants is also aided effectively in this way.

The integrated turbocharger and modified exhaust valve timing ensure optimised responsiveness and help torque to build up even more smoothly. 80 percent of the maximum torque of 200 Nm is available from 1,250 rpm, just above idle speed. The 1.4 TFSI at the same time sets new standards in its class in terms of acoustics. The new high-tech unit from Audi can be ordered for the A3 and A3 Sportback in combination with a six-speed manual gearbox.

With a top speed of 203 km/h and acceleration from a standstill to 100 km/h in 9.6 seconds for the three-door A3, the 1.4 TFSI ensures supreme performance. Its average fuel consumption is just 6.5 litres of premium-grade fuel per 100 km.

The basic price of the A3 1.4 TFSI Attraction is 21,350 euros. The first vehicles will be available in September 2007.

8:30 AM on Tue Jul 24 2007
By Ray Wert
1,671 views
20 comments

Comments

  • I guess it goes without saying that the US will be denied this powerplant.

    I'm sure this thing will yield better mpg than the non-turbo 2.0 in my Golf. That's not really saying much, but still. Why not plunk this in the Rabbit, too?

  • Image of danio3834 danio3834 at 08:50 AM on 07/24/07 *

    Interesting engine.

  • What's up with the 5k rpm limit? It's weird that a gasoline engine doesn't make as many hp as it does ft-lb of torque. It would make sense if it's a diesel, so I think I answered my own question.

  • You think they could squeeze a little more oomph out of that thing. Maybe I'm a little jaded but a turbo motor should make at least 100hp/L! Albeit, this is a pretty cool motor.

  • I see no benefit to the low rev, low-for-a-turbo power engine in a $27K vehicle. 0-62 times of 9.6 seconds don't set my heart atwitter.

    Audi needs to learn that just because they can do something is no reason for them to actually do it.

  • low poer & low rev limit = plus MPG, right?

    CAFE cruiser

  • For some reason i can't see this coming stateside.

  • @goatrope: you do know that in Europe they actually sell these cars with less than 200hp, right? I'm sure this engine isn't coming to the US, but as a new base engine for the A3 lineup it'll serve its purpose well.

    What I don't understand is why we don't get this engine in the Jetta and Rabbit instead of the anemic 5-cylinder powerplant we have now.

  • I never realized this, but according to Wikipedia's article on gasoline direct injection: "...engine power is governed by modulating fuel injection with unthrottled air intake, like a diesel engine; as opposed to restricting intake airflow, like a conventional gas internal combustion engine."

    @Mike Beversluis: Depends on how the engine is designed. For example, Greenpeace sponsored a Twingo based concept car years ago where the gas engine was tuned for normal engine speeds, rather than peak output at high and often unused engine speeds. Basically, diesel like characteristics without diesel emissions, which suit many people better than a gas engine where they rarely use its full potential.

  • Image of danio3834 danio3834 at 10:34 AM on 07/24/07 *

    @AdamSonar:

    Thats right, direct injection is preferrable because it enables more precise metering of fuel at exactly the correct moment to prevent detonation.

    This enables much highger compression ratios, more efficient combustion and you end up with more output too.

    It also enables for easier tuning for more power. With direct injection, octane requirements can be reduced while retaining power. This is a big reason why you can easily 'tune' another 50 hp out of many modern diesel pickups.

  • Image of danio3834 danio3834 at 10:34 AM on 07/24/07 *

    Direct injection is the future.

  • @AdamSonar: thanks for the link to the Twingo project.
    Thats probably the most common sense solution to a greener car, but nobody wants to implement it.

  • Image of Jonny Lieberman Jonny Lieberman at 10:58 AM on 07/24/07 *

    We also don't get the 3-door A3.

    Also, the new Scion Dx makes 128 hp....

  • @Mike Beversluis: The press release doesn't say it has a 5,000rpm rev limit, just that it makes peak power at 5,000rpm.

    It makes more torque than horsepower because of the way it's designed, but it's not a diesel.


    In addition to which, I'm not sure why this is news. The 1.4TFSI has already been available on the European Golf for like a year.

    @Retiree: AFAIK, no. As a practical example, my mk. V GTi gets better fuel economy now that I've upped the power via chipping it. If the engine has to work really hard to accelerate the vehicle, it will be less efficient than a more powerful, less stressed engine.

  • @jonnylieberman: And it's too damn bad. I've always hated the lines of four door hatches. Makes 'em look like tiny mini-vans. I prefer the pocket-rocket look...

  • This engi

  • Sorry about the screwy multiple posts... This engine, as I was saying, has been available in the EU for some time with the VW Golf (Rabbit) GT.

  • @Mike Beverslius: The peak torque from 1500 to 5000 rpm is a result of how VW programmed the turbo, such that the boost is adjusted at various rpms to give a flat torque (and to a lesser extent, power) curves.

    Simply reprogramming the turbo boost settings can give more traditional torque and power curves, that peak higher at higher rpm's. I'd bet buying a 500$ aftermarket chip will allow you to get, say, 160 hp and 170-180 ft-lbs torque with the same octane gas. Cool!

    I chipped my 2.0 TFSI and get approx 250hp and 250 ft-lbs on 89 octane, and the peak is around 5500-6000rpm (i have not dyno'd).

    While I do pine for a 3-door A3, that would be better served with the 2.0 TFSI. I would really like to see this new engine brought over in the body of a Polo GTI.

  • @CMDRFIRE
    This is not the engine in the Golf GT... It's the new "base TSI" engine, that has been available in the Golf for a few months. (as a replacement for the 1.6 FSI) Rated at 5.9 l/100km (40 mpg US) with the 6-speed manual or 7-speed DSG there.

  • Good engine, but economy buyers in the U.S. will not be willing to pony up for premium fuel, the fuel grade cited in the PR.

    "Economy" and turbo don't seem to compute in the states, at least not since the Fuego infested our shores.

Start a discussion:

Reply by Email

Login with your username and password below. Or comment on this post via email.