does anyone know what block they are built off of ?

Do you think they'll be as strong as the traditional 911 Turbo motors.

 

As strong as? Not sure what you mean by that.... Strong enough?

I just spent a day recently at a tech session where we had three engines (and a sliced-open PDK) out on stands for up-close scrutiny. Two of the new 991.2 twin-turbo engines, and a GT3 engine. Honestly, other than seeing the obvious new bits the difference wasn't in-your-face. A lot of reused componentry. The two turbo'd engines were different in that one was unused, the other had been pulled out of a car ...

But, we then were given a presentation created by Jorg Kerner, Director of Powertrain Development, on the 991.2 Powertrain, and I can tell you the engine is entirely new. Some highlights from the presentation:

1. Lighter weight crankcase with new cylinder lining
2. New cylinder head with central injector position for new combustion process
3. New optimised oil management components, with polymer oil pan, new oil pump
4. Modified valve train

and more... In other words, entirely new engines. Did they learn anything about power from the Turbo / Turbo S cars? I am sure that knowledge went into the new engine platform...




Perhaps let us know what your trying to get at, or learn by your question?

 

I guess what I as wondering is for those of us in the 996 and 997.1 modifiers camp. I wonde if the smaller less powerful turbo engines would be almost as good of a basis to begin modification from as the full turbo engine.

Everyone learns from engineering experience the question is did they learn and cut costs or did they learn and improve hp capacity.

For example the 03/04 mustang cobra has a bottom end built out of a racing parts catalog and then the gt500 comes in with better than the original o.e. Parts but certainly not Manley/weisco parts that came in the other car. Ford learned you don't have to build a 1000hp capable bottom end just to put a supercharger on your car. I'm hoping Porsche missed that lesson and all 911 turbos with the right turbo,intercooler and fuel can still hold 650-700whp