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Originally Posted by mkoesel
Quote:
Originally Posted by Holander
Yeap, S54 are ironblock engine and S65 aluminium, but new S55 will be magnesium aluminium so hugely lighter than S54 and probably lighter than S65.
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Will it? Both the N54 and N55 have aluminum blocks. The N52 and N53 use a magnesium/aluminum alloy for the block, but to date no turbocharged engine from BMW has. It would be great if the S55 changes that, but I have my doubts. |
Yeah, I really doubt it will be magnesium. That would require SIGNIFICANT re-eningeering of the block. I mean hell, at that point they might as well start from scratch and give us a 9,000rpm NA engine.