Former VW powertrains boss rules out flat eight engines for future 911 models, saying such units would be too large for the sports car
28 April 2015

There's no chance of a future flat eight engine for the Porsche 911, despite the prospect having been seriously considered.

The flat six layout is effectively constrained at 4.0 litres because of issues with the size of components that would be needed for a larger-capacity version.

Heinz-Jakob Neusser, who was previously powertrain boss at the Volkswagen Group, said a flat eight would have to be 5.0 litres in capacity and was “probably too big”.

Neusser said: “We have been in the pre-development phase with an engine like this, but we never did it.”

He added that the future flat six Porsche engines would still be able to run to high revs. “Moving to turbocharging is not a problem; it will give us more freedom [in future engine design],” he said.

A facelifted version of the 911 is due to launch at the Frankfurt motor show later this year, and will come to market with a range of new engines ahead of the all-new model coming in 2018.

Among the changes scheduled for the facelift is the introduction of a new range of turbocharged six-cylinder, horizontally opposed engines to replace today's naturally aspirated units.

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Comments
9

28 April 2015
So, no flat V8,would this suggest hybrid being considered?

Peter Cavellini.

28 April 2015
It would suggest that you're an idiot.


28 April 2015
Winston Churchill wrote:

It would suggest that you're an idiot.

I thought we had got rid of retorts like this?

Peter Cavellini.

29 April 2015
Peter Cavellini wrote:
Winston Churchill wrote:

It would suggest that you're an idiot.

I thought we had got rid of retorts like this?

Peter, you're a penis.


TBC

28 April 2015
Why on earth would anyone think that a 911 would need even more mass behind its rear wheels? A twin-turbo 3-litre flat six should easily produce 400+bhp and still meet emission regs. A hybrid system would certainly set the top models apart from the rest.

29 April 2015
TBC wrote:

Why on earth would anyone think that a 911 would need even more mass behind its rear wheels? A twin-turbo 3-litre flat six should easily produce 400+bhp and still meet emission regs. A hybrid system would certainly set the top models apart from the rest.

There is no reason why a 5 litre flat 8 should weigh more than a twin turbo 3 litre flat 6. Turbos and intercoolers are heavy, losing them in exchange for 2 extra cylinders seems a fair swap.

 

28 April 2015
Various blogs have suggested that the new turbo engines will produce as much as 500HP in the 'S' version ,or maybe the "Powerkit" or GTS version,forcing the Twin Turbo and TT'S" current models to move higher up,say to 550 and 600 HP,with the help of a Hybrid system,so Peter is completely correct in his suggestion.It will be very interesting to see what they bring at Frankfurt,I may even go again,I was there in 2013.

Madmac

28 April 2015
Did this ever become a proper production unit, I've never read any form of review on it? It was claimed to be lighter than the flat six Porsche had at the time and was kicking out 500 bhp if my memory serves me correctly. They obviously got it fit ok so would seem strange that a flat 8 would be deemed to large?

29 April 2015
..... 2 VR4 engines, either in V (W) or "semi" flat congiguration. Why? you ask..... because :)

GeToD

 

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