Quote:
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Originally Posted by Uli_HH
Quote:
Originally Posted by mapezzul
Recently a reliable source told me that it would be inline 6, V6 was shot down by the board and would use three turbos for the F80.
Now I will openly say that this could in fact mean a small E-charger and a dual scroll turbo effectively making 2 housings with 3 scrolls. My German is so so on these things and the source's English tends to be a bit "off" when it comes to these things.... I also recall being briefed on the X6 ///M when it came out and the engineer I was talking with told me it had 4 turbos- it has four scrolls with 2 dual scroll turbos.
One thing is for sure is that it seems like it will be N55 based now. The source also said 450 HP is the target as BMW is not hell bent on HP and wants efficiency and performance, the M5 could have been over 600hp if they wanted too as an example. 450-460hp would also keep the 100ish hp gap between the M5/M6 for marketing purposes as well as keep reliability up. The F80 has a much better chassis and it is lighter than the former E90 so it will need less HP to go faster.
-M
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Well ... your source quotes overall the same as my source ... if BMW/M-GmbH really will define the electric turbo drive as an additional turbo - its according to the patent never an E-charger, because it drives the turbosystem directly instead of producing air pressure - they could name it TriTurbo and when I look at the BMW definition of the Twinscroll-Turbo as 2 Turbos  ... your source could be right.
But that would be very bad news, because that would meen that the AG has decided to take the cheapest alternative to create am M3/M4 engine ... simple an 3ltr.R6 N55 with reinforced block and an/one bigger TwinScroll-System and the patented eTurbo-Drive to reduce/eliminate lag  and name it TriTurbo to made the customers think they would an rally great engine.
One of my sources with good links to the M-GmbH qoutes that the GmbH hopes(?) that the could bring an 3.3ltr.R6 engine with 2 TwinScroll-Turbos (4 Turbos) ... but my fear is that the AG would cancel this (like the great 3.3ltr.V6 BiTurbo based on the S63Tü!) because it is a bit more costly to produce. Profit and Ebit are sadly the current heros for the BMW AG. 
Greets Uli_HH |
We must remember that M does not make the final decisions, it is the AG board that does. M can only offer up what it has created for approval. The M3 up until the current V8 had used modified production motors so that does not take anything away. The current V8 was created to win at Le Mans, ALMS and the VLN. With BMW refocussing on DTM, which uses a bespoke engine there is no homologation issues. As for the rest of the race series- Porsche will be using a tri-turbo in the future as well and turbos should be allowed in the not so distant future.
I am not worried M has lost it's way because the people I know behind the scenes are some if the biggest enthusiasts ever, others have been there for decades.
-M