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      04-29-2014, 09:29 AM   #248
jackkk
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Drives: M3 F80
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Quote:
Originally Posted by ASAP View Post
I can buy the 395 whp stock part but def not the +125 whp tuned part. No one knows how conservative or not conservative the turbos are pushed stock. Please do not use the N54 as a standard for everything, I can guarantee that engine is a near one off. The N54 ran 8 psi stock, at 18 it made ~ 420 whp. For what you said to be true... these turbos need to be the size of rb's to make that power. Bmw wouldnt not choose turbos that large as they would not have the responsiveness worthy of an m car.
S55 Turbos are 1 size bigger than N54, so the same like RB.
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