Quote:
Originally Posted by stevehifi
You're reading too much into the marketing 'power' graph that BMW publishes.. it's a gross representation of the engine power curve and each motor varies over production tolerances. Best thing to do is wait until someone actually dynos a CS and then you can see the differences...
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Those power charts are likely coming from the testing BMW did to obtain their certified rating. They are most probably more precise and repeatable than any chassis dyno run done at the corner shop.
The challenge with modern engines, particularly forced induction ones, is that they can produce more power when in transient than in steady state, giving the impression that they are "underrated" from the factory.