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      10-23-2006, 11:06 AM   #4
Bimmerista
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Drives: superstock
Join Date: Aug 2005
Location: Montreal, Quebec, Canada

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The engine block is aluminium rather than magnesium casing, due to the increased strength requirement of the high compression (turbo).

Not a new engine per se, since it uses the same basic components; it is a derivative of the N52 engine, adapted for turbo and DI.