Where is this info coming from? 550Nm Max torque limit seems very unlikely as the stock 991.2 GTS has exactly that max torque number and that means there wouldn’t be any margin left.

Tuning any Carrera, Carrera S let alone GTS would get higher numbers than 550Nm. Haven’t heard any PDK issues with those tunes so far. Porsche engineering is usually also on the safe side.

 

This is from a Porsche publication "Service Information 911 (991) Generation II" It specifically pertains to the Carrera and Carrera S, so the GTS may have a beefier transmission. Excerpt from document below:

 

GTS has the same transmissions & clutches. Note the 406 ft-lb max torque on the diagram. That is the torque of the both the GTS and S with X51 PowerKit. Porsche would/ could not have offered the X51 PowerKit if this were not so.

 

Good to know that the GTS is same transmission & Clutches.

My point earlier in the thread was that the 992 likely has much higher potential on torque with an ECU tune than the 991.2. It's interesting to see ECU tunes advertising a 100 ft-lb increase in torque on the base 991.2. This would bring it well over 406 ft-lbs that the PDK is rated for. It's unclear what the engineering safety margin is on the PDK.

 

Thanks for the info. Figures stated there are pretty clear and also do align with the stock figures Porsche publicly states when it comes to max torque and max rpm. I am just I bit hesitant as how to interpret these figures as to the bandwidth Porsche has engineered into components like engine and PDK when it comes to the possibilities to reliable tune these components to be able to handle higher values. We all know that these engines (and also PDK) have turned out to be, at least up till now, a rather reliable platform to obtain >500hp (even 520) and >600nm (even 650) and about 7800rpm. Maybe some of the tuners can chime in with some perspective on this topic.

https://www.techart.de/en/models/911...ving-dynamics/

https://www.litchfieldmotors.com/porsche/911-2-carrera

 

The 992 has to have significantly higher potential. From the start they communicated intent to offer a hybrid version and cited this as the reason for the stubby 9 speed PDK. With hybrid power it has to be able to handle much, much higher and instant torque much sooner than a combustion engine alone. Assuming the battery power flows through the transmission....