718 Spyder will naturally aspirated, apparently...

[Twinfan]

According to this thread on Rennlist:

https://rennlist.com/forums/987-981-718-forum/9992...

I would say that confirms that the GT4 will be too, and I think that rules out a Motorsport engine as I can't see them fitting one in the Spyder nor can I see the Spyder and GT4 having different engines.

The existing 3.8L with an X51 Powerkit must be the way they'll go? Could be the last NA Caysters too...

[Twinfan]

It's the Spyder part that was news to me. I know the next GT4 has been mentioned as NA previously and so we can now assume both cars will share the same engine and it won't be a de-tuned 4.0ltr from the Motorsport division.

Must be the Powerkitted 3.8 now, I can't see how it can be anything else.

[Twinfan]

My theory is that the 'old' 3.8 is still knocking around because it exists in the Clubsport GT4. Porsche can increase or fire up production of it to build a run of engines for an updated Clubsport, the next GT4 and the next Spyder. I would say that should cover 10,000 engines? Chuck in the PDK option as seen in the Clubsport and we'd have the next GT4 ready to go almost immediately with some economies of scale thrown in.

NA engine? Check.
Power levels around 425bhp to fit in the Porsche hierarchy correctly? Check.
Use the 981 GT4 platform with a few subtle/minor tweaks? Check.
Pricing just below base 911? (probably £70k-£75k)? Check.

That just leaves the gearbox. I don't think the existing manual 6 speed will take the increased torque without modification, so do they throw the 7-speed in there? Or they could use the gearbox from the 911R/GT3 which they already have on the shelf.....