Volkswagen offers up new details on 1.4L TSI engine
While the performance has improved, the new motor uses six percent less gas. The improved torque allows the use of taller gear ratios to allow for similar performance at lower engine rpm. That helps improve the fuel economy and reduces noise levels. A lot of European countries calculate vehicle taxes based in part on engine size so the new smaller engine will reduce owners registration fees without sacrificing performance. The engine will also be paired up with the new seven speed DSG transmission.
[Source: Volkswagen] To the Point: TSI Offensive
New TSI with 122 PS: Economical and Powerful
Economical: New TSI consumes six percent less fuel
Powerful: Maximum torque of 200 Nm in reserve at a low 1,500 rpm
Wolfsburg, 29 May 2007 - Maximum power with minimum fuel consumption – this characteristic has, within a very short period of time, made TSI four-cylinder engines a synonym for a new generation of economical and at the same time sporty Volkswagen engines. Performance specifications: 125 kW / 170 PS and 103 kW / 140 PS. The Golf, Golf Variant, Golf Plus, Jetta and Touran are powered by them. In 2006 and once again in 2007 they were awarded the coveted "Engine of the Year Award". Now Volkswagen is presenting the third TSI; this one is 90 kW / 122 PS strong and will be introduced to the Golf lineup this year.
The new TSI will replace the 1.6 FSI with 85 kW / 115 PS in the mid-term. Decisive advantages of the new turbo engine: Besides being able to reduce fuel consumption by about six percent, the engine's power and torque characteristics were also improved significantly. Due to its smaller displacement, vehicle taxes are also lower. Compared to the 1.6 FSI, maximum torque has now been increased by nearly 30 percent to 200 Newton-meter. And this power is already available at 1,500 rpm. In addition, 80 percent of the maximum torque is already available at speeds as low as 1,250 rpm. In the lower speed range the TSI even exhibits Newton-meter gains of up to 66 percent compared to its predecessor.
Another plus when it comes to economy: Since its maximum torque is available over a broad speed range from 1,500 to 3,500 rpm, conditions are ideal for combining the new TSI with longer and therefore fuel-saving gear ratios. That is why in the future Volkswagen is planning to pair it with the first transverse seven-speed dual clutch transmission in the world (DSG). Its debut will also be in 2007.
Key facts about the new engine at a glance:
* Utilized in models up to the Passat.
* 90 kW / 122 PS power between 5,000 and 6,400 rpm.
* 200 Nm maximum torque from 1,500 to 3,500 rpm.
* 80 percent of maximum torque starting at 1,250 rpm
* Maximum torque 30 percent greater than in the 1.6 FSI.
* 66 percent more torque at 1,500 rpm.
* Fuel consumption is about six percent lower.
* Specific torque of 144 Nm per liter.
* 16V in-line four cylinder of the EA111 engine series.
* 1,390 cm3 displacement.
* Cylinder spacing: 82 millimeters.
* Bore and stroke: 76.5 and 75.6 millimeters.
* Compression 10:1.
* Electronic gasoline direct injection.
* Electronic-map ignition with cylinder-selective anti-knock control.
* Advanced combustion process.
* New intake port without charge movement flaps.
* Turbocharger (max. 1.8 bar)
* 220,000 rpm as maximum rpm of the turbocharger.
* Electrically-controlled divert-air valve for turbocharger.
* Water-cooled charge air in intake port.
* Fuel: Super unleaded (95 ROZ).
* Reduced friction losses.
* Total engine weight per DIN: 131 kilograms.
All data and equipment contained in this press release apply to models offered in Germany. They may differ in other countries. All information is subject to change or correction.
TDI, TSI, DSG and Twincharger are registered trademarks of Volkswagen AG or other companies of the Volkswagen Group in Germany and other countries.
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