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look at this dyno. why dose the Torque fall?

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Old Dec 16, 2007 | 03:46 PM
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Erdin
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look at this dyno. why dose the Torque fall?
I’m jut trying to find out why the torque begins to plummet after 6500rpm at 20lbs of boost. Any ideas?
Attached Thumbnails look at this dyno. why dose the Torque fall?-img_0013.jpg  
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Old Dec 16, 2007 | 05:24 PM
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That's a sign of too much backpressure, your turbine housing is too small imo.
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