Polo TDI: What's the difference between 70 & 80 HP?

Hi,

I'm familiar with the 75 hp TDI engine from the Polo 9N, which has a wastegate turbocharger, and I know that the same engine is also available in the A2 with 90 hp and a variable geometry turbocharger (VTG).

What are the specifications of the new 70 and 80 horsepower tractors?

The torque of 195 Nm at 2200 rpm for the 80 hp engine is the same as that of the previous 75 hp engine.

"155 Nm / 1600 rpm for the 70cc engine sounds 'strange' – weak, but low-revving."

Thank you.
Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

I've also been wondering about this... Many of the small engines have suddenly become weak. Even the 68 horsepower PSA 1.4 HDI engine in the C1/106/Aygo models now only produces 54 horsepower, but it achieves its full torque output at a much lower RPM.
Could this be related to Euro 4 emissions standards? They might be trying to achieve Euro 4 without using complex technology, which is why they're reducing the power output. With such low power, a smaller wastegate turbocharger would suffice. This would result in quick boost at lower RPMs, but not enough volume at higher RPMs for significant power.

Regards,

Olaf.

I can only say that it's from the BNM, and it has a power output of 51 kW.
It's derived from the BAY engine with 55 kW and is only detuned via software.
And it only reaches the 155 Nm of torque at 2,200 rpm.

Ah???

Roger.
Why doesn't Volkswagen know that the 51 kW engine only reaches its peak torque of 155 Nm at 2200 rpm?

I actually got the data from www.volkswagen.de.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

I've sent you a private message.

Hello,

Last week, I had a rental car with a three-cylinder diesel engine. The noise level reminded me of a bulldozer. It didn't really start producing power until around 2000 RPM, and then it abruptly stopped at 4000 RPM. I actually found the engine to be even noisier than a four-cylinder TDI.

Best regards,
Christian.

"A good chip delivers power even with 75 horsepower from 1600 RPM. I also find the turbo lag too significant in the standard configuration."
Driving over 4000 RPM is absolutely uneconomical with a diesel engine... so I don't really care about that as long as the performance is good at lower RPMs.
The sound doesn't bother me if the fuel consumption and performance are good... but of course, it's a matter of personal taste. The engine certainly isn't for everyone.

Regards,

Olaf.

I drive the 1.4 TDI and can confirm what you're saying about the lack of power below 2000 RPM.
But it really becomes fun from 2000 RPM onwards, and the "rough" sound is something you get used to.