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Originally Posted by TX78666
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Another odd graph.
Peak torque doesn't occur at what BMW claims. There is quite a bit of lag there.
Also, the N55 supposedly builds it's torque a bit lower than the N54, and that graph shows the opposite.
Even with the high tech servotronic intake, the N54's torque curve is broader and smoother.
The N55 has a higher "peak" but it's more of a spike, and it dies quicker, which is contrary to what BMW claims about the N55.
These graphs don't support the claim that twin scroll has better low rpm torque build, nor that it has better high rpm torque.