01-07-2013, 08:51 AM
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Officially Welcomed to the 'Fest
Location: Michigan
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Join Date: Jun 2012
Posts: 161
Mein Auto: 650i
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Quote:
Originally Posted by Itinj6
Same engine.
Matter of fact, the X6M (and X5M) received that S63 engine first and was later adapted by the M6 (and M5) as a TU version with valvetronic.
Sent from my SCH-I605 using Bimmer App
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+1 My NJ friend is correct. The TU upgrade also included increased boost and a higher compression ratio if memory serves.
I suspect the same is true for the N63Tu versus the N63. It's the boost and CR that results in the HP increase, not the vlavetronic.
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