S58 Technical Document

Jeffman

Captain
Jan 7, 2017
1,349
Unlike the introduction of the N54, it looks like BMW is taking cooling in a competitive environment quite seriously in the S58:

According to BMWBlog:
“Three large radiators, an additional engine oil cooler and a separate transmission oil cooler keep the temperatures under control. A map-controlled oil pump with additional suction stage in conjunction with the oil sump, which has two chambers and an integrated suction channel, enables reliable lubrication even at high lateral accelerations.”
 
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doublespaces

Administrator
Oct 18, 2016
8,202
AZ
Here are cliff notes:

They've dropped the CR from 10.2 to 9.3
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Oil sump is cast aluminum AlSi9Cu3
Crankcase is gravity die-cast Al Si 7 Cu 0.5 Mg
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And everyone's favorite subject:

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Crankshaft is a steel alloy 42CrMoS4 Mod which is nitrocarbonized. Lower bearings are Federal Mogul G488 and uppers are G490. Rods are taken from the S64B44T4.

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Forged 'slipper-skirt' pistons are made by Mahle. Material is M142P alloy.

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The turbos are off-set and the turbine housings are part of the manifold:
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DME is made by Bosch: DME 8.6.S (Gen8, 6 cylinders, M Sport)
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